Split play into body, items, interactions, autofeed and camera, with events, commands and literal strings

MODDING.md

@@ -206,9 +206,6 @@ Determines menu and general UI appearance and behavior.
 ### particles
 An object of particles by name, each with the `anm2` and `animation` it plays once where spawned.
 
-### strings
-Replaces UI text, by name. See [`src/strings.h`](src/strings.h) for every name and its default, e.g. `"strings": {"MenuTabInventory": "Pantry"}`.
-
 # items.json
 
 Has all items and their parameters, alongside additional behavior.

src/anm2.cpp

@@ -174,6 +174,9 @@ void Anm2::load(const std::string& path, Renderer& renderer, Audio& audio)
     sounds = audio.sounds_get(folder, soundPaths);
 
     animations_parse(json_object(root, "animations"), animations, sheetRegions, layerSheets);
+    for (int i = 0; i < (int)animations.size(); i++)
+        animationIndices[animations[i].name] = i;
+    bounds.assign(animations.size(), {NAN, NAN, NAN, NAN});
     defaultAnimation = std::max(0, animation_get(json_string(root, "defaultAnimation")));
 }
 
@@ -185,10 +188,8 @@ static int name_get(const std::vector<std::string>& names, const std::string& na
 
 int Anm2::animation_get(const std::string& name) const
 {
-    for (int i = 0; i < (int)animations.size(); i++)
-        if (animations[i].name == name)
-            return i;
-    return -1;
+    auto found = animationIndices.find(name);
+    return found == animationIndices.end() ? -1 : found->second;
 }
 
 int Anm2::event_get(const std::string& name) const
@@ -230,11 +231,86 @@ static float ease(float t, Easing easing)
     }
 }
 
+// The track's keyframe at a time, blended toward the next one if it eases. Past the end the last keyframe holds. An
+// empty track gives an invisible frame.
+Anm2Frame track_sample(const Anm2Track& track, float time)
+{
+    Anm2Frame frame;
+    frame.isVisible = !track.empty();
+    time = std::max(time, 0.0f);
+    float start = 0;
+    for (size_t i = 0; i < track.size(); i++)
+    {
+        frame = track[i];
+        if (time >= start + frame.delay && i + 1 < track.size())
+        {
+            start += frame.delay;
+            continue;
+        }
+        if (frame.easing != EASING_NONE && i + 1 < track.size() && frame.delay > 1)
+        {
+            const Anm2Frame& next = track[i + 1];
+            float t = ease((time - start) / frame.delay, frame.easing);
+            frame.position = vec2_lerp(frame.position, next.position, t);
+            frame.scale = vec2_lerp(frame.scale, next.scale, t);
+            frame.rotation = std::lerp(frame.rotation, next.rotation, t);
+            frame.tint = color_lerp(frame.tint, next.tint, t);
+            frame.offset = color_lerp(frame.offset, next.offset, t);
+        }
+        break;
+    }
+    return frame;
+}
+
+static Affine root_affine_get(const Anm2Frame& frame, Vec2 position = {})
+{
+    return affine_get(frame.position + position, frame.rotation, frame.scale / PERCENT);
+}
+
+static Affine layer_affine_get(const Anm2Frame& frame)
+{
+    return affine_get(frame.position, frame.rotation, frame.scale / PERCENT, frame.pivot);
+}
+
+static Affine null_affine_get(const Anm2Frame& frame)
+{
+    return affine_get(frame.position, frame.rotation, {1, 1}, frame.scale / 2);
+}
+
+// The smallest rectangle holding every visible layer over a whole animation, around its origin. Worked out once.
+Rect Anm2::bounds_get(int index)
+{
+    if (index < 0 || index >= (int)animations.size())
+        return {NAN, NAN, NAN, NAN};
+    if (is_rect_valid(bounds[index]))
+        return bounds[index];
+    Anm2Animation& animation = animations[index];
+    Actor actor(this, {}, animation.name);
+    for (int time = 0; time < animation.length; time++)
+    {
+        Affine root = root_affine_get(track_sample(animation.root, (float)time));
+        for (Anm2Item& layer : animation.layers)
+        {
+            Affine model = root;
+            Color tint;
+            Color offset;
+            Anm2Frame frame = track_sample(layer.frames, (float)time);
+            if (layer.isVisible && frame.isVisible && frame.size.x > 0 &&
+                actor.is_group_visible(animation, layer.group, (float)time, model, tint, offset))
+                bounds[index] = rect_merge(bounds[index], affine_bounds(model * layer_affine_get(frame), frame.size.x,
+                                                                        frame.size.y));
+        }
+    }
+    return bounds[index];
+}
+
 Actor::Actor(Anm2* anm2, Vec2 position, const std::string& name) : anm2(anm2), position(position)
 {
     if (!anm2)
         return;
     sheets = anm2->sheets;
+    layers.resize(anm2->layers.size());
+    nullScales.resize(anm2->nulls.size());
     int index = anm2->animation_get(name);
     request_apply({anm2->animations[index >= 0 ? index : anm2->defaultAnimation].name, TRANSITION_FORCE});
 }
@@ -247,8 +323,7 @@ Anm2Animation* Actor::animation_get(int index)
 
 bool Actor::is_playing(const std::string& name)
 {
-    Anm2Animation* current = animation_get();
-    return isPlaying && current && current->name == name;
+    return isPlaying && anm2 && animation >= 0 && anm2->animation_get(name) == animation;
 }
 
 bool Actor::is_finished()
@@ -268,8 +343,7 @@ void Actor::request_apply(const Request& request)
     int index = anm2 ? anm2->animation_get(request.animation) : -1;
     if (index < 0)
     {
-        static std::unordered_set<std::string> missing;
-        if (anm2 && missing.insert(request.animation).second)
+        if (anm2 && anm2->missing.insert(request.animation).second)
             SDL_Log("Animation \"%s\" does not exist", request.animation.c_str());
         return;
     }
@@ -289,23 +363,20 @@ void Actor::request_apply(const Request& request)
     triggersPlayed.assign(anm2->animations[index].triggers.size(), false);
 }
 
+void Actor::pulse_add(int layer, float amplitude, float cycles, float duration)
+{
+    if (layer >= 0 && layer < (int)layers.size() && duration > 0)
+        pulses.push_back({amplitude, cycles, duration, duration, layer});
+}
+
 void Actor::update(Audio& audio)
 {
     if (pending)
         request_apply(*pending);
     pending.reset();
-
-    for (int i = 0; i < (int)overrides.size(); i++)
-    {
-        Override& override = overrides[i];
-        if (override.timeStart <= 0)
-            continue;
-        float percent = std::clamp(override.time / override.timeStart, 0.0f, 1.0f);
-        float wave = std::cos((1 - percent) * 2 * PI * override.cycles) * percent;
-        override.scale = {std::abs(override.amplitude.x) * wave, std::abs(override.amplitude.y) * wave};
-        if (--override.time <= 0)
-            overrides.erase(overrides.begin() + i--);
-    }
+    for (int i = 0; i < (int)pulses.size(); i++)
+        if (--pulses[i].time <= 0)
+            pulses.erase(pulses.begin() + i--);
 
     Anm2Animation* current = animation_get();
     if (!isPlaying || (current && current->isLoop))
@@ -339,62 +410,50 @@ void Actor::update(Audio& audio)
     triggersPlayed.assign(triggersPlayed.size(), false);
 }
 
-// The track's keyframe at a time, blended toward the next one if it eases, then changed by any overrides. Past the end
-// the last keyframe holds. An empty track gives an invisible frame.
-Anm2Frame Actor::frame_get(const Anm2Track& track, float frameTime, OverrideTarget target, int id)
+// A layer's keyframe at a time, with its swapped region, added scale and pulses.
+Anm2Frame Actor::layer_frame_get(const Anm2Item& layer, float frameTime)
 {
-    Anm2Frame frame;
-    if (track.empty())
-    {
-        frame.isVisible = false;
+    Anm2Frame frame = track_sample(layer.frames, frameTime);
+    if (layer.id < 0 || layer.id >= (int)layers.size())
         return frame;
+    LayerChange& change = layers[layer.id];
+    if (change.isRegion)
+    {
+        frame.crop = change.crop;
+        frame.size = change.size;
+        frame.pivot = change.pivot;
     }
-    frameTime = std::max(frameTime, 0.0f);
-    float start = 0;
-    for (size_t i = 0; i < track.size(); i++)
+    frame.scale = frame.scale + change.scale;
+    for (Pulse& pulse : pulses)
     {
-        frame = track[i];
-        if (frameTime >= start + frame.delay && i + 1 < track.size())
-        {
-            start += frame.delay;
+        if (pulse.layer != layer.id)
             continue;
-        }
-        if (frame.easing != EASING_NONE && i + 1 < track.size() && frame.delay > 1)
-        {
-            const Anm2Frame& next = track[i + 1];
-            float t = ease((frameTime - start) / frame.delay, frame.easing);
-            frame.position = vec2_lerp(frame.position, next.position, t);
-            frame.scale = vec2_lerp(frame.scale, next.scale, t);
-            frame.rotation = std::lerp(frame.rotation, next.rotation, t);
-            frame.tint = color_lerp(frame.tint, next.tint, t);
-            frame.offset = color_lerp(frame.offset, next.offset, t);
-        }
-        break;
-    }
-    for (Override& override : overrides)
-    {
-        if (override.target != target || override.id != id)
-            continue;
-        if (override.isRegion)
-        {
-            frame.crop = override.crop;
-            frame.size = override.size;
-            frame.pivot = override.pivot;
-        }
-        if (override.isRotation)
-            frame.rotation = override.rotation;
-        frame.scale = frame.scale + override.scale;
+        float percent = pulse.time / pulse.duration;
+        float wave = std::abs(pulse.amplitude) * std::cos((1 - percent) * 2 * PI * pulse.cycles) * percent;
+        frame.scale = frame.scale + Vec2{wave, wave};
     }
     return frame;
 }
 
-static Affine root_affine_get(const Anm2Frame& frame, Vec2 position = {})
+Anm2Frame Actor::null_frame_get(const Anm2Item& null, float frameTime)
 {
-    return affine_get(frame.position + position, frame.rotation, frame.scale / PERCENT);
+    Anm2Frame frame = track_sample(null.frames, frameTime);
+    if (null.id >= 0 && null.id < (int)nullScales.size())
+        frame.scale = frame.scale + nullScales[null.id];
+    return frame;
+}
+
+Anm2Frame Actor::root_frame_get(Anm2Animation& current, float frameTime)
+{
+    Anm2Frame frame = track_sample(current.root, frameTime);
+    if (rotation)
+        frame.rotation = *rotation;
+    return frame;
 }
 
 // The transform, tint and color offset a group (and its parents) give its items, or false if any is hidden.
-bool Actor::is_group_visible(Anm2Animation& current, int group, float frameTime, Affine& model, Color& tint, Color& offset)
+bool Actor::is_group_visible(Anm2Animation& current, int group, float frameTime, Affine& model, Color& tint,
+                             Color& offset)
 {
     if (group < 0 || group >= (int)current.groups.size())
         return true;
@@ -403,24 +462,19 @@ bool Actor::is_group_visible(Anm2Animation& current, int group, float frameTime,
         return false;
     if (entry.root.empty())
         return true;
-    Anm2Frame frame = frame_get(entry.root, frameTime);
+    Anm2Frame frame = track_sample(entry.root, frameTime);
     model = model * root_affine_get(frame);
     tint = tint * frame.tint;
     offset = offset + frame.offset;
     return frame.isVisible;
 }
 
-static Affine null_affine_get(const Anm2Frame& frame)
-{
-    return affine_get(frame.position, frame.rotation, {1, 1}, frame.scale / 2);
-}
-
 void Actor::render(Renderer& renderer, Affine view)
 {
     Anm2Animation* current = animation_get();
     if (!isVisible || !current)
         return;
-    Anm2Frame root = frame_get(current->root, time);
+    Anm2Frame root = root_frame_get(*current, time);
     Affine rootModel = view * root_affine_get(root, position);
     for (Anm2Item& layer : current->layers)
     {
@@ -429,25 +483,25 @@ void Actor::render(Renderer& renderer, Affine view)
         Color offset = root.offset;
         if (!layer.isVisible || !is_group_visible(*current, layer.group, time, model, tint, offset))
             continue;
-        Anm2Frame frame = frame_get(layer.frames, time, TARGET_LAYER, layer.id);
+        Anm2Frame frame = layer_frame_get(layer, time);
         int sheet = layer.id >= 0 && layer.id < (int)anm2->layerSheets.size() ? anm2->layerSheets[layer.id] : -1;
         Texture* texture = sheet >= 0 && sheet < (int)sheets.size() ? sheets[sheet] : nullptr;
         if (!frame.isVisible || !texture)
             continue;
-        model = model * affine_get(frame.position, frame.rotation, frame.scale / PERCENT, frame.pivot);
+        model = model * layer_affine_get(frame);
         renderer.quad_draw(*texture, {frame.crop.x, frame.crop.y, frame.size.x, frame.size.y}, model,
                            frame.tint * tint, frame.offset + offset);
-        if (isShowLayers)
+        if (renderer.isShowLayers)
             renderer.outline_draw(model, frame.size.x, frame.size.y, LAYER_COLOR);
     }
-    if (!isShowNulls)
+    if (!renderer.isShowNulls)
         return;
     for (Anm2Item& null : current->nulls)
     {
         Affine model = rootModel;
         Color tint;
         Color offset;
-        Anm2Frame frame = frame_get(null.frames, time, TARGET_NULL, null.id);
+        Anm2Frame frame = null_frame_get(null, time);
         if (null.isVisible && frame.isVisible && is_group_visible(*current, null.group, time, model, tint, offset))
             renderer.outline_draw(model * null_affine_get(frame), frame.scale.x, frame.scale.y, NULL_COLOR);
     }
@@ -464,10 +518,10 @@ Rect Actor::null_rect_get(int null, int index, float frameTime)
     {
         if (item.id != null)
             continue;
-        Affine model = root_affine_get(frame_get(current->root, frameTime), position);
+        Affine model = root_affine_get(root_frame_get(*current, frameTime), position);
         Color tint;
         Color offset;
-        Anm2Frame frame = frame_get(item.frames, frameTime, TARGET_NULL, null);
+        Anm2Frame frame = null_frame_get(item, frameTime);
         if (!frame.isVisible || !is_group_visible(*current, item.group, frameTime, model, tint, offset))
             break;
         return affine_bounds(model * null_affine_get(frame), frame.scale.x, frame.scale.y);
@@ -475,28 +529,12 @@ Rect Actor::null_rect_get(int null, int index, float frameTime)
     return {NAN, NAN, NAN, NAN};
 }
 
-// The smallest rectangle holding every visible layer over the whole current animation.
+// The current animation's bounds (see Anm2::bounds_get) where the actor stands, turned by its set rotation.
 Rect Actor::bounds_get()
 {
-    Rect bounds = {NAN, NAN, NAN, NAN};
-    Anm2Animation* current = animation_get();
-    if (!current)
-        return bounds;
-    for (int frameTime = 0; frameTime < current->length; frameTime++)
-    {
-        Affine rootModel = root_affine_get(frame_get(current->root, (float)frameTime), position);
-        for (Anm2Item& layer : current->layers)
-        {
-            Affine model = rootModel;
-            Color tint;
-            Color offset;
-            Anm2Frame frame = frame_get(layer.frames, (float)frameTime, TARGET_LAYER, layer.id);
-            if (!layer.isVisible || !frame.isVisible || frame.size.x <= 0 ||
-                !is_group_visible(*current, layer.group, (float)frameTime, model, tint, offset))
-                continue;
-            model = model * affine_get(frame.position, frame.rotation, frame.scale / PERCENT, frame.pivot);
-            bounds = rect_merge(bounds, affine_bounds(model, frame.size.x, frame.size.y));
-        }
-    }
-    return bounds;
+    Rect local = anm2 ? anm2->bounds_get(animation) : Rect{NAN, NAN, NAN, NAN};
+    if (!is_rect_valid(local))
+        return local;
+    Affine model = affine_get(position, rotation.value_or(0), {1, 1}) * Affine{1, 0, 0, 1, local.x, local.y};
+    return affine_bounds(model, local.w, local.h);
 }

src/anm2.h

@@ -4,6 +4,8 @@
 #include "renderer.h"
 #include <optional>
 #include <string>
+#include <unordered_map>
+#include <unordered_set>
 #include <vector>
 
 enum Easing
@@ -75,10 +77,13 @@ struct Anm2Animation
 class Anm2
 {
 public:
+    std::unordered_map<std::string, int> animationIndices;
+    std::unordered_set<std::string> missing;
     std::vector<Anm2Animation> animations;
     std::vector<std::string> events;
     std::vector<std::string> layers;
     std::vector<std::string> nulls;
+    std::vector<Rect> bounds;
     std::vector<Texture*> sheets;
     std::vector<int> layerSheets;
     Sounds sounds;
@@ -90,9 +95,11 @@ public:
     int event_get(const std::string& name) const;
     int layer_get(const std::string& name) const;
     int null_get(const std::string& name) const;
+    Rect bounds_get(int animation);
 };
 
 int track_length_get(const Anm2Track& track);
+Anm2Frame track_sample(const Anm2Track& track, float time);
 
 enum Transition
 {
@@ -108,30 +115,24 @@ enum Interrupt
     INTERRUPT_NEVER
 };
 
-enum OverrideTarget
+// How an actor changes one of its layers: a region shown in place of its own, and scale added on.
+struct LayerChange
 {
-    TARGET_ROOT,
-    TARGET_LAYER,
-    TARGET_NULL
-};
-
-// Changes one track's frames as an actor draws them: a swapped region, an added scale (oscillating out over time, when
-// timed) or a set rotation.
-struct Override
-{
-    Vec2 amplitude;
     Vec2 crop;
     Vec2 pivot;
     Vec2 scale;
     Vec2 size;
-    float cycles = 0;
-    float rotation = 0;
-    float time = 0;
-    float timeStart = 0;
-    int id = -1;
-    OverrideTarget target = TARGET_LAYER;
     bool isRegion = false;
-    bool isRotation = false;
+};
+
+// Scale added to a layer that oscillates and fades out over its duration, in ticks.
+struct Pulse
+{
+    float amplitude = 0;
+    float cycles = 1;
+    float duration = 0;
+    float time = 0;
+    int layer = -1;
 };
 
 struct Request
@@ -141,17 +142,18 @@ struct Request
     Interrupt interrupt = INTERRUPT_IF_ALLOWED;
 };
 
-// Plays an Anm2's animations by name at a position. A static actor holds its animation's first frame.
+// Plays an Anm2's animations by name at a position. A static actor holds its animation's first frame. Locked, it ignores
+// requests to play.
 class Actor
 {
 public:
-    static inline bool isShowLayers = false;
-    static inline bool isShowNulls = false;
-
     Anm2* anm2 = nullptr;
     std::optional<Request> pending;
-    std::vector<Override> overrides;
+    std::optional<float> rotation;
+    std::vector<LayerChange> layers;
+    std::vector<Pulse> pulses;
     std::vector<Texture*> sheets;
+    std::vector<Vec2> nullScales;
     std::vector<bool> triggersPlayed;
     Vec2 position;
     float time = 0;
@@ -167,16 +169,20 @@ public:
     Actor(Anm2* anm2, Vec2 position = {}, const std::string& animation = "");
     void play(const std::string& name, Transition transition = TRANSITION_NORMAL,
               Interrupt interrupt = INTERRUPT_IF_ALLOWED);
+    void pulse_add(int layer, float amplitude, float cycles, float duration);
     void update(Audio& audio);
     void render(Renderer& renderer, Affine view);
     Anm2Animation* animation_get(int index = -1);
-    Anm2Frame frame_get(const Anm2Track& track, float frameTime, OverrideTarget target = TARGET_ROOT, int id = -1);
+    Anm2Frame layer_frame_get(const Anm2Item& layer, float frameTime);
     Rect null_rect_get(int null, int index = -1, float frameTime = -1);
     Rect bounds_get();
     bool is_playing(const std::string& name);
     bool is_finished();
+    bool is_group_visible(Anm2Animation& animation, int group, float frameTime, Affine& model, Color& tint,
+                          Color& offset);
 
 private:
     void request_apply(const Request& request);
-    bool is_group_visible(Anm2Animation& animation, int group, float frameTime, Affine& model, Color& tint, Color& offset);
+    Anm2Frame null_frame_get(const Anm2Item& null, float frameTime);
+    Anm2Frame root_frame_get(Anm2Animation& animation, float frameTime);
 };

src/body.cpp

@@ -0,0 +1,248 @@
+#include "play.h"
+
+constexpr float SWAP_STEP = 0.5f;
+
+enum SwapMode
+{
+    SWAP_LOOP,
+    SWAP_ONCE
+};
+
+// Keeps a value within a range given either way round, putting what isn't a number at its low end.
+static float value_clamp(float value, float low, float high)
+{
+    if (low > high)
+        std::swap(low, high);
+    return std::isfinite(value) ? std::clamp(value, low, high) : low;
+}
+
+// Starts a body from the character's traits, keeping any stats already loaded into it.
+void Body::set(Character& played, Audio& sound, Game game)
+{
+    character = &played;
+    audio = &sound;
+    actor = Actor(played.anm2);
+    Traits& traits = played.traits;
+    if (stats.weight <= 0)
+    {
+        stats.weight = traits.weight;
+        stats.capacity = traits.capacity;
+        stats.digestionRate = traits.digestionRate;
+    }
+    bool isRolled = game == GAME_NEW && played.alternate.texture && is_chance(played.alternate.chance);
+    stats.isAlternate |= isRolled;
+    if (isRolled)
+        audio->play(played.alternate.sound);
+    if (stats.isAlternate && played.alternate.sheet < (int)actor.sheets.size())
+        actor.sheets[played.alternate.sheet] = played.alternate.texture;
+    values_clamp();
+    stage_set(stage_get(stats.weight));
+    idle_play();
+    actor.update(*audio);
+}
+
+void Body::stage_set(int index)
+{
+    stage = index;
+    suffix = stage > 0 && stage <= (int)character->stages.size() ? character->stages[stage - 1].animationSuffix : "";
+}
+
+float Body::capacity_max_get()
+{
+    return stats.capacity * character->traits.overstuffedMultiplier;
+}
+
+float Body::capacity_percent_get()
+{
+    float capacityMax = capacity_max_get();
+    return capacityMax > 0 ? stats.calories / capacityMax : 0;
+}
+
+bool Body::is_over_capacity()
+{
+    return stats.calories > stats.capacity;
+}
+
+int Body::stage_get(float weight)
+{
+    std::vector<Stage>& stages = character->stages;
+    if (stages.empty() || weight <= character->traits.weight)
+        return 0;
+    for (int i = 0; i < (int)stages.size(); i++)
+        if (weight < stages[i].weight)
+            return i;
+    return (int)stages.size();
+}
+
+float Body::stage_threshold_get(int index)
+{
+    std::vector<Stage>& stages = character->stages;
+    if (index <= 0 || stages.empty())
+        return character->traits.weight;
+    return stages[std::min(index, (int)stages.size()) - 1].weight;
+}
+
+float Body::stage_progress_get()
+{
+    float low = stage_threshold_get(stage);
+    float high = stage_threshold_get(stage + 1);
+    if (stage >= (int)character->stages.size() || high <= low)
+        return 1;
+    return (stats.weight - low) / (high - low);
+}
+
+std::string Body::idle_get()
+{
+    if (isStageUp)
+        return "";
+    if (!idleOverride.empty())
+        return idleOverride;
+    Animations& animations = character->animations;
+    return is_over_capacity() && !animations.idleFull.empty() ? animations.idleFull : animations.idle;
+}
+
+// Plays one of the character's animations, as its current stage draws it.
+void Body::play(const std::string& animation, Transition transition, Interrupt interrupt)
+{
+    if (!animation.empty())
+        actor.play(animation + suffix, transition, interrupt);
+}
+
+void Body::idle_play()
+{
+    play(idle_get());
+}
+
+void Body::idle_override_set(const std::string& animation)
+{
+    if (!animation.empty())
+        idleOverride = animation == character->animations.idle ? "" : animation;
+}
+
+// Where an eat area takes food: its null now, or at the start of its animation when it isn't showing.
+Rect Body::eat_rect_get(const EatArea& eatArea)
+{
+    Rect rect = actor.null_rect_get(eatArea.null);
+    if (!is_rect_valid(rect))
+        rect = actor.null_rect_get(eatArea.null, actor.anm2->animation_get(eatArea.animation + suffix), 0);
+    return rect;
+}
+
+void Body::values_clamp()
+{
+    Traits& traits = character->traits;
+    stats.weight = value_clamp(stats.weight, traits.weight, traits.weightMax);
+    stats.capacity = value_clamp(stats.capacity, traits.capacityMin, traits.capacityMax);
+    stats.digestionRate = value_clamp(stats.digestionRate, traits.digestionRateMin, traits.digestionRateMax);
+    stats.calories = value_clamp(stats.calories, 0, std::max(0.0f, capacity_max_get()));
+    stats.digestionProgress = value_clamp(stats.digestionProgress, 0, DIGESTION_MAX);
+    stats.digestionTimer = std::clamp(stats.digestionTimer, 0, std::max(0, traits.digestionTime));
+    stats.totalCalories = std::max(0.0f, stats.totalCalories);
+    stats.playtime = std::max(0.0f, stats.playtime);
+}
+
+// Shows a swap's source layer on its destination, stepping through the source's frames while active, over and over or
+// once. Turns itself off (and returns false) when the animation lacks the source, or a single pass ends.
+static bool is_swapping(Actor& actor, Swap swap, float& time, bool isActive, SwapMode mode)
+{
+    Anm2Animation* animation = actor.animation_get();
+    bool isDestination = swap.destination >= 0 && swap.destination < (int)actor.layers.size();
+    if (isDestination)
+        actor.layers[swap.destination].isRegion = false;
+    if (!isActive || !animation || !isDestination)
+        return false;
+    for (Anm2Item& layer : animation->layers)
+    {
+        if (layer.id != swap.source || layer.frames.empty())
+            continue;
+        Anm2Frame frame = actor.layer_frame_get(layer, time);
+        LayerChange& change = actor.layers[swap.destination];
+        change = {frame.crop, frame.pivot, change.scale, frame.size, true};
+        time += SWAP_STEP;
+        if (time < track_length_get(layer.frames))
+            return true;
+        time = 0;
+        return mode == SWAP_LOOP;
+    }
+    time = 0;
+    return false;
+}
+
+// Digests, grows, gurgles, and keeps the body's animations up: idle, stage ups, swelling, talking and blinking.
+void Body::update(std::vector<Event>& events)
+{
+    Traits& traits = character->traits;
+    values_clamp();
+    if (!actor.isPlaying)
+    {
+        if (isStageUp)
+        {
+            events.push_back(stage >= (int)character->stages.size() ? EVENT_STAGE_FINAL : EVENT_STAGE_UP);
+            isStageUp = false;
+            actor.isLocked = false;
+        }
+        if (!isTalking)
+            idle_play();
+    }
+    actor.update(*audio);
+
+    if (stats.isDigesting && --stats.digestionTimer <= 0)
+    {
+        float nextWeight =
+            value_clamp(stats.weight + stats.calories * traits.caloriesToKilogram, traits.weight, traits.weightMax);
+        if (is_over_capacity())
+        {
+            float over = stats.calories - stats.capacity;
+            float overPercent = over / (capacity_max_get() - stats.capacity);
+            stats.capacity = value_clamp(stats.capacity + overPercent * traits.overstuffedDigestBonus * over,
+                                         traits.capacityMin, traits.capacityMax);
+        }
+        stats.calories = 0;
+        if (int nextStage = stage_get(nextWeight); nextStage > stage_get(stats.weight))
+        {
+            actor.interrupt = INTERRUPT_IF_ALLOWED;
+            play(character->animations.stageUp, TRANSITION_NORMAL, INTERRUPT_NEVER);
+            stage_set(nextStage);
+            isStageUp = true;
+            actor.isLocked = true;
+        }
+        else
+            events.push_back(EVENT_DIGESTED);
+        stats.weight = nextWeight;
+        stats.isDigesting = false;
+        stats.digestionTimer = traits.digestionTime;
+        stats.digestionProgress = 0;
+    }
+    else if (!stats.isDigesting)
+    {
+        if (stats.calories > 0)
+            stats.digestionProgress += stats.digestionRate;
+        if (stats.digestionProgress >= DIGESTION_MAX)
+        {
+            stats.isDigesting = true;
+            stats.digestionTimer = traits.digestionTime;
+            audio->play(character->sounds[SOUND_DIGEST]);
+        }
+    }
+    values_clamp();
+    if (is_chance(traits.gurgleChance * capacity_percent_get() * traits.gurgleCapacityMultiplier * PERCENT))
+        audio->play(character->sounds[SOUND_GURGLE]);
+    if (int current = stage_get(stats.weight); current != stage)
+        stage_set(current);
+
+    float stageProgress = stage_progress_get();
+    float capacityProgress = capacity_percent_get();
+    if (stats.isDigesting)
+        capacityProgress *= (float)stats.digestionTimer / std::max(1, traits.digestionTime);
+    for (ExpandArea& expandArea : character->expandAreas)
+    {
+        float add = std::clamp((stageProgress + capacityProgress) * expandArea.scaleMax / 2, 0.0f, expandArea.scaleMax);
+        if (expandArea.layer >= 0)
+            actor.layers[expandArea.layer].scale = {add, add};
+        if (expandArea.null >= 0)
+            actor.nullScales[expandArea.null] = {add, add};
+    }
+
+    isTalking = is_swapping(actor, character->talk, talkTime, isTalking, SWAP_LOOP);
+    isBlinking = is_swapping(actor, character->blink, blinkTime, isBlinking || is_chance(traits.blinkChance), SWAP_ONCE);
+}

src/character.cpp

@@ -6,6 +6,11 @@ constexpr float FONT_SIZE = 20;
 constexpr const char* EFFECT_NAMES[] = {"animation",   "big",   "color",  "delay", "oscillation", "scene",
                                         "screenshake", "shake", "silent", "small", "sound"};
 constexpr const char* USE_NAMES[] = {"", "edible", "tool"};
+constexpr const char* HOOK_NAMES[] = {
+#define X(id, name) name,
+    HOOKS(X)
+#undef X
+};
 
 struct SoundSource
 {
@@ -42,13 +47,23 @@ Entry* Dialogue::pool_get(const std::string& pool)
     return entry_get(found->second[SDL_rand((Sint32)found->second.size())]);
 }
 
-Entry* Dialogue::hook_get(const std::string& hook)
+Entry* Dialogue::hook_get(Hook hook)
 {
-    auto found = hooks.find(hook);
-    if (found == hooks.end())
-        return nullptr;
-    Entry* entry = pool_get(found->second);
-    return entry ? entry : entry_get(found->second);
+    Entry* entry = pool_get(hooks[hook]);
+    return entry ? entry : entry_get(hooks[hook]);
+}
+
+bool Dialogue::is_hook(Hook hook)
+{
+    return pools.contains(hooks[hook]) || entries.contains(hooks[hook]);
+}
+
+int Catalog::item_get(const std::string& name)
+{
+    for (int i = 0; i < (int)items.size(); i++)
+        if (items[i].name == name)
+            return i;
+    return -1;
 }
 
 void Character::preview_load(const std::string& path, Renderer& renderer)
@@ -65,7 +80,7 @@ void Character::preview_load(const std::string& path, Renderer& renderer)
     description = json_string(root, "description");
     credits = json_string(root, "credits");
     color = json_color(root, "color", color);
-    weight = json_float(root, "weight");
+    traits.weight = json_float(root, "weight");
     anm2Path = json_string(root, "anm2");
     portrait = root["portrait"].error() ? nullptr : renderer.texture_get(folder + json_string(root, "portrait"));
     render = root["render"].error() ? nullptr : renderer.texture_get(folder + json_string(root, "render"));
@@ -120,35 +135,34 @@ static void interact_parse(object source, InteractArea& area, Character& charact
 static void character_parse(object root, Character& character, Renderer& renderer, Audio& audio)
 {
     character.anm2 = character.anm2_get(character.anm2Path, renderer, audio);
-    character.weightMax = json_float(root, "weightMax", character.weight);
-    character.capacity = json_float(root, "capacity");
-    character.capacityMin = json_float(root, "capacityMin");
-    character.capacityMax = json_float(root, "capacityMax", character.capacity);
-    character.overstuffedMultiplier = json_float(root, "overstuffedMultiplier", 1);
-    character.overstuffedDigestBonus = json_float(root, "overstuffedDigestBonus");
-    character.caloriesToKilogram = json_float(root, "caloriesToKilogram");
-    character.digestionRate = json_float(root, "digestionRate") / TICK_RATE;
-    character.digestionRateMin = json_float(root, "digestionRateMin") / TICK_RATE;
-    character.digestionRateMax = json_float(root, "digestionRateMax", character.digestionRate * TICK_RATE) / TICK_RATE;
-    character.digestionTime = json_int(root, "digestionTime");
-    character.blinkChance = json_float(root, "blinkChance");
-    character.gurgleChance = json_float(root, "gurgleChance");
-    character.gurgleCapacityMultiplier = json_float(root, "gurgleCapacityMultiplier");
+    Traits& traits = character.traits;
+    traits.weightMax = json_float(root, "weightMax", traits.weight);
+    traits.capacity = json_float(root, "capacity");
+    traits.capacityMin = json_float(root, "capacityMin");
+    traits.capacityMax = json_float(root, "capacityMax", traits.capacity);
+    traits.overstuffedMultiplier = json_float(root, "overstuffedMultiplier", 1);
+    traits.overstuffedDigestBonus = json_float(root, "overstuffedDigestBonus");
+    traits.caloriesToKilogram = json_float(root, "caloriesToKilogram");
+    traits.digestionRate = json_float(root, "digestionRate") / TICK_RATE;
+    traits.digestionRateMin = json_float(root, "digestionRateMin") / TICK_RATE;
+    traits.digestionRateMax = json_float(root, "digestionRateMax", traits.digestionRate * TICK_RATE) / TICK_RATE;
+    traits.digestionTime = json_int(root, "digestionTime");
+    traits.blinkChance = json_float(root, "blinkChance");
+    traits.gurgleChance = json_float(root, "gurgleChance");
+    traits.gurgleCapacityMultiplier = json_float(root, "gurgleCapacityMultiplier");
     character.dialoguePool = json_string(root, "dialoguePool");
 
     object alternate = json_object(root, "alternate");
     if (!alternate["texture"].error())
-        character.alternateTexture = renderer.texture_get(character.folder + json_string(alternate, "texture"));
+        character.alternate.texture = renderer.texture_get(character.folder + json_string(alternate, "texture"));
     if (!alternate["sound"].error())
-        character.alternateSound = audio.sound_get(character.folder + json_string(alternate, "sound"));
-    character.alternateChance = json_float(alternate, "chance");
-    character.alternateSheet = json_int(alternate, "spritesheet");
+        character.alternate.sound = audio.sound_get(character.folder + json_string(alternate, "sound"));
+    character.alternate.chance = json_float(alternate, "chance");
+    character.alternate.sheet = json_int(alternate, "spritesheet");
 
     object animations = json_object(root, "animations");
-    character.animationStart = json_string(animations, "start");
-    character.animationIdle = json_string(animations, "idle");
-    character.animationIdleFull = json_string(animations, "idleFull");
-    character.animationStageUp = json_string(animations, "stageUp");
+    character.animations = {json_string(animations, "idle"), json_string(animations, "idleFull"),
+                            json_string(animations, "stageUp"), json_string(animations, "start")};
 
     Anm2* anm2 = character.anm2;
     auto layer_get = [&](object source, const char* key) {
@@ -157,10 +171,9 @@ static void character_parse(object root, Character& character, Renderer& rendere
     auto null_get = [&](object source, const char* key) {
         return anm2 ? anm2->null_get(json_string(source, key)) : -1;
     };
-    character.talkSource = layer_get(json_object(root, "talk"), "source");
-    character.talkDestination = layer_get(json_object(root, "talk"), "destination");
-    character.blinkSource = layer_get(json_object(root, "blink"), "source");
-    character.blinkDestination = layer_get(json_object(root, "blink"), "destination");
+    character.talk = {layer_get(json_object(root, "talk"), "destination"), layer_get(json_object(root, "talk"), "source")};
+    character.blink = {layer_get(json_object(root, "blink"), "destination"),
+                       layer_get(json_object(root, "blink"), "source")};
 
     for (element entry : json_array(root, "eatAreas"))
     {
@@ -225,26 +238,28 @@ static void character_parse(object root, Character& character, Renderer& rendere
     }
 
     object cursor = json_object(root, "cursor");
-    character.cursor = character.anm2_get(json_string(cursor, "anm2"), renderer, audio);
     object cursorAnimations = json_object(cursor, "animations");
-    character.cursorIdle = json_string(cursorAnimations, "idle");
-    character.cursorClick = json_string(cursorAnimations, "click");
-    character.cursorHover = json_string(cursorAnimations, "hover");
-    character.cursorGrab = json_string(cursorAnimations, "grab");
-    character.cursorPan = json_string(cursorAnimations, "pan");
-    character.cursorZoom = json_string(cursorAnimations, "zoom");
-    character.cursorDispose = json_string(cursorAnimations, "dispose");
-    character.grabParticles = json_strings(json_object(cursor, "particles"), "grab");
+    auto cursor_get = [&](const char* key) {
+        return json_string(cursorAnimations, key);
+    };
+    character.cursor = {cursor_get("click"),
+                        cursor_get("dispose"),
+                        cursor_get("grab"),
+                        cursor_get("hover"),
+                        cursor_get("idle"),
+                        cursor_get("pan"),
+                        cursor_get("zoom"),
+                        json_strings(json_object(cursor, "particles"), "grab"),
+                        character.anm2_get(json_string(cursor, "anm2"), renderer, audio)};
 
     object menu = json_object(root, "menu");
-    ImFontAtlas* fonts = ImGui::GetIO().Fonts;
-    if (!menu["font"].error())
-        character.font = fonts->AddFontFromFileTTF((character.folder + json_string(menu, "font")).c_str(), FONT_SIZE);
-    if (!menu["iconsFont"].error())
-        character.iconsFont =
-            fonts->AddFontFromFileTTF((character.folder + json_string(menu, "iconsFont")).c_str(), FONT_SIZE);
-    character.rounding = json_float(menu, "rounding");
-    character.homeGlyph = json_string(menu, "homeGlyph");
+    auto font_get = [&](const char* key) {
+        std::string path = json_string(menu, key);
+        return path.empty() ? nullptr
+                            : ImGui::GetIO().Fonts->AddFontFromFileTTF((character.folder + path).c_str(), FONT_SIZE);
+    };
+    character.menu = {json_string(menu, "homeGlyph"), font_get("font"), font_get("iconsFont"),
+                      json_float(menu, "rounding")};
 
     for (auto [name, value] : json_object(root, "particles"))
     {
@@ -253,22 +268,19 @@ static void character_parse(object root, Character& character, Renderer& rendere
             character.particles[std::string(name)] = {
                 json_string(fields, "animation"), character.anm2_get(json_string(fields, "anm2"), renderer, audio)};
     }
-
-    object strings = json_object(root, "strings");
-    for (int i = 0; i < STRING_COUNT; i++)
-        character.strings[i] = json_string(strings, STRING_NAMES[i], STRING_DEFAULTS[i]);
 }
 
 static void items_parse(object root, Character& character, Renderer& renderer, Audio& audio)
 {
+    Catalog& catalog = character.catalog;
     Anm2* baseAnm2 = character.anm2_get(json_string(root, "anm2"), renderer, audio);
-    character.itemSheet = json_int(root, "spritesheet");
-    character.spawnDelay = json_int(root, "spawnDelay", character.spawnDelay);
-    character.spawnDelayMultiplier = json_float(root, "spawnDelayMultiplier", character.spawnDelayMultiplier);
-    character.spawnLimit = json_int(root, "spawnLimit", character.spawnLimit);
+    catalog.sheet = json_int(root, "spritesheet");
+    catalog.spawnDelay = json_int(root, "spawnDelay", catalog.spawnDelay);
+    catalog.spawnDelayMultiplier = json_float(root, "spawnDelayMultiplier", catalog.spawnDelayMultiplier);
+    catalog.spawnLimit = json_int(root, "spawnLimit", catalog.spawnLimit);
     object particles = json_object(root, "particles");
-    character.disposeParticles = json_strings(particles, "dispose");
-    character.summonParticles = json_strings(particles, "summon");
+    catalog.disposeParticles = json_strings(particles, "dispose");
+    catalog.summonParticles = json_strings(particles, "summon");
 
     object categories = json_object(root, "categories");
     std::vector<std::string> rarityNames;
@@ -278,7 +290,7 @@ static void items_parse(object root, Character& character, Renderer& renderer, A
         if (value.get(fields))
             continue;
         std::string sound = json_string(fields, "sound");
-        character.rarities.push_back({std::string(name), sound.empty() ? nullptr : audio.sound_get(character.folder + sound),
+        catalog.rarities.push_back({std::string(name), sound.empty() ? nullptr : audio.sound_get(character.folder + sound),
                                       json_float(fields, "weight")});
         rarityNames.emplace_back(name);
     }
@@ -288,7 +300,7 @@ static void items_parse(object root, Character& character, Renderer& renderer, A
         object fields;
         if (entry.get(fields))
             continue;
-        Item& item = character.items.emplace_back();
+        Item& item = catalog.items.emplace_back();
         item.name = json_string(fields, "name", "???");
         item.description = json_string(fields, "description", "???");
         item.category = json_string(fields, "category");
@@ -323,12 +335,9 @@ static void dialogue_parse(object root, Character& character, Audio& audio)
         if (!value.get(fields))
             dialogue.pauses[std::string(letter)] = {json_int(fields, "delay"), json_is(fields, "isSilent")};
     }
-    for (auto [hook, value] : json_object(root, "hooks"))
-    {
-        std::string_view target;
-        if (!value.get(target))
-            dialogue.hooks[std::string(hook)] = target;
-    }
+    object hooks = json_object(root, "hooks");
+    for (int i = 0; i < HOOK_COUNT; i++)
+        dialogue.hooks[i] = json_string(hooks, HOOK_NAMES[i]);
     for (auto [pool, value] : json_object(root, "pools"))
     {
         array list;
@@ -418,10 +427,11 @@ void Character::load(Renderer& renderer, Audio& audio)
 // An actor for an item, showing its texture in place of its anm2's item spritesheet.
 Actor Character::item_actor_get(int item)
 {
-    Actor actor(items[item].anm2);
+    Item& entry = catalog.items[item];
+    Actor actor(entry.anm2);
     actor.isStatic = true;
-    if (items[item].texture && itemSheet >= 0 && itemSheet < (int)actor.sheets.size())
-        actor.sheets[itemSheet] = items[item].texture;
+    if (entry.texture && catalog.sheet >= 0 && catalog.sheet < (int)actor.sheets.size())
+        actor.sheets[catalog.sheet] = entry.texture;
     return actor;
 }
 

src/character.h

@@ -1,7 +1,6 @@
 #pragma once
 
 #include "anm2.h"
-#include "strings.h"
 #include <array>
 #include <unordered_map>
 
@@ -38,6 +37,32 @@ enum SoundId
         SOUND_COUNT
 };
 
+// The game events dialogue can hook onto, by their names in dialogue.json.
+#define HOOKS(X)                                                                                                       \
+    X(START, "Start")                                                                                                  \
+    X(END, "End")                                                                                                      \
+    X(HELP, "Help")                                                                                                    \
+    X(RANDOM, "Random")                                                                                                \
+    X(STAGE_UP, "StageUp")                                                                                             \
+    X(DIGEST, "Digest")                                                                                                \
+    X(FEED, "Feed")                                                                                                    \
+    X(FEED_FULL, "FeedFull")                                                                                           \
+    X(EAT, "Eat")                                                                                                      \
+    X(EAT_FULL, "EatFull")                                                                                             \
+    X(FULL, "Full")                                                                                                    \
+    X(LOW_CAPACITY, "LowCapacity")                                                                                     \
+    X(THROW, "Throw")                                                                                                  \
+    X(FOOD_TAKEN, "FoodTaken")                                                                                         \
+    X(FOOD_TAKEN_FULL, "FoodTakenFull")
+
+enum Hook
+{
+#define X(id, name) HOOK_##id,
+    HOOKS(X)
+#undef X
+        HOOK_COUNT
+};
+
 struct Stage
 {
     std::string animationSuffix;
@@ -187,13 +212,12 @@ struct Pause
     bool isSilent = false;
 };
 
-// Dialogue entries by label, pools of them picked from at random, and hooks naming the pool (or else entry) the game
-// plays on an event.
+// Dialogue entries by label, pools of them picked from at random, and the pool (or else entry) each hook plays.
 struct Dialogue
 {
+    std::array<std::string, HOOK_COUNT> hooks;
     std::unordered_map<std::string, Entry> entries;
     std::unordered_map<std::string, Pause> pauses;
-    std::unordered_map<std::string, std::string> hooks;
     std::unordered_map<std::string, std::vector<std::string>> pools;
     Sounds blip;
     int blipDelay = 0;
@@ -201,59 +225,13 @@ struct Dialogue
 
     Entry* entry_get(const std::string& label);
     Entry* pool_get(const std::string& pool);
-    Entry* hook_get(const std::string& hook);
+    Entry* hook_get(Hook hook);
+    bool is_hook(Hook hook);
 };
 
-// Everything a character folder holds. The preview (what the select screen shows) loads at startup, the rest when
-// played.
-class Character
+// The body a character starts with and the limits it grows within. Rates are percent per tick.
+struct Traits
 {
-public:
-    std::array<Sounds, SOUND_COUNT> sounds;
-    std::array<std::string, STRING_COUNT> strings;
-    std::string animationIdle;
-    std::string animationIdleFull;
-    std::string animationStageUp;
-    std::string animationStart;
-    std::string anm2Path;
-    std::string credits;
-    std::string cursorClick;
-    std::string cursorDispose;
-    std::string cursorGrab;
-    std::string cursorHover;
-    std::string cursorIdle;
-    std::string cursorPan;
-    std::string cursorZoom;
-    std::string description;
-    std::string dialoguePool;
-    std::string folder;
-    std::string homeGlyph;
-    std::string key;
-    std::string name;
-    std::unordered_map<std::string, Anm2> anm2s;
-    std::unordered_map<std::string, Particle> particles;
-    std::vector<std::string> disposeParticles;
-    std::vector<std::string> grabParticles;
-    std::vector<std::string> summonParticles;
-    std::vector<Area> areas;
-    std::vector<EatArea> eatAreas;
-    std::vector<ExpandArea> expandAreas;
-    std::vector<InteractArea> interactAreas;
-    std::vector<InteractArea> interactTypes;
-    std::vector<Item> items;
-    std::vector<Rarity> rarities;
-    std::vector<Stage> stages;
-    Dialogue dialogue;
-    Anm2* anm2 = nullptr;
-    Anm2* cursor = nullptr;
-    ImFont* font = nullptr;
-    ImFont* iconsFont = nullptr;
-    Sound* alternateSound = nullptr;
-    Texture* alternateTexture = nullptr;
-    Texture* portrait = nullptr;
-    Texture* render = nullptr;
-    Color color = {0.5f, 0.5f, 0.5f, 1};
-    float alternateChance = 0;
     float blinkChance = 0;
     float caloriesToKilogram = 0;
     float capacity = 0;
@@ -266,19 +244,104 @@ public:
     float gurgleChance = 0;
     float overstuffedDigestBonus = 0;
     float overstuffedMultiplier = 1;
-    float rounding = 0;
-    float spawnDelayMultiplier = 1;
     float weight = 0;
     float weightMax = 0;
-    int alternateSheet = 0;
-    int blinkDestination = -1;
-    int blinkSource = -1;
     int digestionTime = 0;
-    int itemSheet = 0;
+};
+
+struct Alternate
+{
+    Sound* sound = nullptr;
+    Texture* texture = nullptr;
+    float chance = 0;
+    int sheet = 0;
+};
+
+struct Animations
+{
+    std::string idle;
+    std::string idleFull;
+    std::string stageUp;
+    std::string start;
+};
+
+// A layer whose region is shown on another: for talking and blinking.
+struct Swap
+{
+    int destination = -1;
+    int source = -1;
+};
+
+struct Cursor
+{
+    std::string click;
+    std::string dispose;
+    std::string grab;
+    std::string hover;
+    std::string idle;
+    std::string pan;
+    std::string zoom;
+    std::vector<std::string> grabParticles;
+    Anm2* anm2 = nullptr;
+};
+
+struct Menu
+{
+    std::string homeGlyph;
+    ImFont* font = nullptr;
+    ImFont* iconsFont = nullptr;
+    float rounding = 0;
+};
+
+// The items a character can be given, their rarities, and how often they spawn.
+struct Catalog
+{
+    std::vector<std::string> disposeParticles;
+    std::vector<std::string> summonParticles;
+    std::vector<Item> items;
+    std::vector<Rarity> rarities;
+    float spawnDelayMultiplier = 1;
+    int sheet = 0;
     int spawnDelay = 60;
     int spawnLimit = 100;
-    int talkDestination = -1;
-    int talkSource = -1;
+
+    int item_get(const std::string& name);
+};
+
+// Everything a character folder holds. The preview (what the select screen shows) loads at startup, the rest when
+// played.
+class Character
+{
+public:
+    std::array<Sounds, SOUND_COUNT> sounds;
+    std::string anm2Path;
+    std::string credits;
+    std::string description;
+    std::string dialoguePool;
+    std::string folder;
+    std::string key;
+    std::string name;
+    std::unordered_map<std::string, Anm2> anm2s;
+    std::unordered_map<std::string, Particle> particles;
+    std::vector<Area> areas;
+    std::vector<EatArea> eatAreas;
+    std::vector<ExpandArea> expandAreas;
+    std::vector<InteractArea> interactAreas;
+    std::vector<InteractArea> interactTypes;
+    std::vector<Stage> stages;
+    Alternate alternate;
+    Animations animations;
+    Catalog catalog;
+    Cursor cursor;
+    Dialogue dialogue;
+    Menu menu;
+    Swap blink;
+    Swap talk;
+    Traits traits;
+    Anm2* anm2 = nullptr;
+    Texture* portrait = nullptr;
+    Texture* render = nullptr;
+    Color color = {0.5f, 0.5f, 0.5f, 1};
     bool isLoaded = false;
     bool isValid = false;
 

src/console.cpp

@@ -5,14 +5,14 @@
 constexpr float CONSOLE_HEIGHT = 0.4f;
 constexpr int INPUT_SIZE = 256;
 
-struct Command
+struct ConsoleCommand
 {
     const char* name;
     const char* usage;
     bool isPlayOnly;
 };
 
-constexpr Command COMMANDS[] = {
+constexpr ConsoleCommand COMMANDS[] = {
     {"animations", "animations", true},
     {"capacity", "capacity <calories>", true},
     {"character", "character <name>", false},
@@ -66,7 +66,7 @@ void Console::execute(Play* play, std::vector<Character>& characters)
         inputs.push_back(input);
     inputIndex = -1;
     history.push_back("> " + input);
-    auto command = std::find_if(std::begin(COMMANDS), std::end(COMMANDS), [&](const Command& entry) {
+    auto command = std::find_if(std::begin(COMMANDS), std::end(COMMANDS), [&](const ConsoleCommand& entry) {
         return name == entry.name;
     });
     if (command == std::end(COMMANDS))
@@ -74,21 +74,18 @@ void Console::execute(Play* play, std::vector<Character>& characters)
     if (command->isPlayOnly && !play)
         return history.push_back("Command unavailable outside game: " + name);
     float number = (float)SDL_atof(argument.c_str());
-    Progress* progress = play ? &play->progress : nullptr;
+    Body* body = play ? &play->body : nullptr;
 
     if (name == "animations")
     {
-        Anm2* anm2 = play->actor.anm2;
+        Anm2* anm2 = body->actor.anm2;
         for (int i = 0; anm2 && i < (int)anm2->animations.size(); i++)
             history.push_back("  " + std::to_string(i) + " " + anm2->animations[i].name);
     }
     else if (name == "capacity")
-        progress->capacity = number;
+        body->stats.capacity = number;
     else if (name == "character" || name == "new_game")
-    {
-        action = name == "character" ? ACTION_CHARACTER : ACTION_NEW_GAME;
-        target = argument;
-    }
+        commands->push_back({argument, name == "character" ? COMMAND_CONTINUE : COMMAND_NEW_GAME});
     else if (name == "characters")
     {
         for (Character& character : characters)
@@ -101,53 +98,53 @@ void Console::execute(Play* play, std::vector<Character>& characters)
     }
     else if (name == "digest")
     {
-        progress->isDigesting = true;
-        progress->digestionTimer = 1;
+        body->stats.isDigesting = true;
+        body->stats.digestionTimer = 1;
     }
     else if (name == "digestion")
-        progress->digestionRate = number / TICK_RATE;
+        body->stats.digestionRate = number / TICK_RATE;
     else if (name == "help")
     {
-        for (const Command& entry : COMMANDS)
+        for (const ConsoleCommand& entry : COMMANDS)
             if (play || !entry.isPlayOnly)
                 history.push_back(std::string("  ") + entry.usage);
     }
     else if (name == "items")
     {
-        for (int i = 0; i < (int)play->character->items.size(); i++)
-            history.push_back("  " + std::to_string(i) + " " + play->character->items[i].name);
+        std::vector<Item>& items = play->character->catalog.items;
+        for (int i = 0; i < (int)items.size(); i++)
+            history.push_back("  " + std::to_string(i) + " " + items[i].name);
     }
     else if (name == "menu")
-        action = ACTION_MENU;
+        commands->push_back({"", COMMAND_MENU});
     else if (name == "play_animation")
-        play->actor.play(argument, TRANSITION_FORCE, INTERRUPT_ALWAYS);
+        body->actor.play(argument, TRANSITION_FORCE, INTERRUPT_ALWAYS);
     else if (name == "play_dialogue")
         play->text.set(*play, play->character->dialogue.entry_get(argument));
     else if (name == "reload")
-        action = ACTION_RELOAD;
+        commands->push_back({"", COMMAND_RELOAD});
     else if (name == "show_layers")
-        Actor::isShowLayers = is_toggled(argument, Actor::isShowLayers);
+        renderer->isShowLayers = is_toggled(argument, renderer->isShowLayers);
     else if (name == "show_nulls")
-        Actor::isShowNulls = is_toggled(argument, Actor::isShowNulls);
+        renderer->isShowNulls = is_toggled(argument, renderer->isShowNulls);
     else if (name == "spawn")
     {
         int id = SDL_atoi(argument.c_str());
-        if (argument.empty() || id < 0 || id >= (int)play->character->items.size())
+        if (argument.empty() || id < 0 || id >= (int)play->character->catalog.items.size())
             history.push_back("Unable to spawn item " + argument + ".");
         else
-            play->spawn_queue_add(id);
+            play->items.spawn_queue_add(*play, id);
     }
     else if (name == "stage" || name == "weight")
     {
-        play->stage = name == "stage" ? std::max(0, SDL_atoi(argument.c_str()) - 1) : play->stage_get(number);
-        progress->weight = name == "stage" ? play->stage_threshold_get(play->stage) : number;
-        play->idle_play();
+        body->stage_set(name == "stage" ? std::max(0, SDL_atoi(argument.c_str()) - 1) : body->stage_get(number));
+        body->stats.weight = name == "stage" ? body->stage_threshold_get(body->stage) : number;
+        body->idle_play();
     }
 }
 
 void Console::update(Play* play, std::vector<Character>& characters)
 {
-    action = ACTION_NONE;
     if (!isOpen)
         return;
     ImVec2 screen = ImGui::GetIO().DisplaySize;

src/console.h

@@ -1,26 +1,18 @@
 #pragma once
 
 #include "play.h"
-
-enum ConsoleAction
-{
-    ACTION_NONE,
-    ACTION_CHARACTER,
-    ACTION_MENU,
-    ACTION_NEW_GAME,
-    ACTION_RELOAD
-};
+#include "ui.h"
 
 // A developer console (opened with the grave key when "console=1" is in settings.txt) for inspecting and changing a
-// game. Commands that change characters are left as an action for the game to carry out.
+// game. Commands that change what's running go to the game's command list.
 class Console
 {
 public:
     std::vector<std::string> history;
     std::vector<std::string> inputs;
     std::string input;
-    std::string target;
-    ConsoleAction action = ACTION_NONE;
+    Commands* commands = nullptr;
+    Renderer* renderer = nullptr;
     int inputIndex = -1;
     bool isOpen = false;
 

src/dialogue.cpp

@@ -1,151 +1,33 @@
 #include "dialogue.h"
 #include "play.h"
-#include "ui.h"
-#include <cfloat>
-#include <imgui_internal.h>
 
 constexpr float LIFE_MAX = 10;
-constexpr float OSCILLATION_AMPLITUDE = 2;
-constexpr float OSCILLATION_FREQUENCY = 1;
-constexpr float OSCILLATION_SPREAD = 0.16f;
 constexpr float SCREENSHAKE_MAGNITUDE = 0.03f;
 constexpr int SCREENSHAKE_TIME = 15;
-constexpr float SHAKE_AMPLITUDE = 1;
-constexpr float SHAKE_FREQUENCY = 30;
-constexpr float TEXT_BIG = 1.25f;
-constexpr float TEXT_SMALL = 0.75f;
-constexpr float WIDTH_MULTIPLIER = 0.3f;
-constexpr float HEIGHT_LINES = 6;
-constexpr float INDICATOR_BOB = 0.12f;
-constexpr float INDICATOR_SIZE = 0.35f;
-constexpr float INDICATOR_SPEED = 2;
-
-static bool is_effect_on(const Effect& effect, int at)
-{
-    return effect.start <= at && at < effect.end;
-}
 
 static bool is_silent(const Entry& entry, int at)
 {
     for (const Effect& effect : entry.effects)
-        if (effect.type == EFFECT_SILENT && is_effect_on(effect, at))
+        if (effect.type == EFFECT_SILENT && effect.start <= at && at < effect.end)
             return true;
     return false;
 }
 
-static float hash_unit(Uint32 value)
+static bool is_letter_start(const std::string& text, size_t at)
 {
-    value ^= value >> 16;
-    value *= 0x7feb352du;
-    value ^= value >> 15;
-    value *= 0x846ca68bu;
-    value ^= value >> 16;
-    return (value & 0xffffu) / 65535.0f;
+    return at >= text.size() || ((unsigned char)text[at] & 0xC0) != 0x80;
 }
 
-// The scale, color and offset the entry's effects give its character at an index.
-static float letter_style_get(const Entry& entry, int at, float time, ImU32& color, ImVec2& offset)
+// The UTF-8 character at an index of a text, or empty past its end.
+static std::string letter_get(const std::string& text, int at)
 {
-    float scale = 1;
-    color = ImGui::GetColorU32(ImGuiCol_Text);
-    offset = {};
-    for (const Effect& effect : entry.effects)
-    {
-        if (!is_effect_on(effect, at))
-            continue;
-        Uint32 seed = (Uint32)std::floor(time * SHAKE_FREQUENCY) * 747796405u + (Uint32)at * 2891336453u;
-        switch (effect.type)
-        {
-            case EFFECT_COLOR:
-                color = ImGui::GetColorU32(imvec4_get({effect.color.r, effect.color.g, effect.color.b, 1}));
-                break;
-            case EFFECT_BIG:
-                scale = TEXT_BIG;
-                break;
-            case EFFECT_SMALL:
-                scale = TEXT_SMALL;
-                break;
-            case EFFECT_OSCILLATION:
-                offset.y += std::sin((time * OSCILLATION_FREQUENCY + at * OSCILLATION_SPREAD) * 2 * PI) *
-                            OSCILLATION_AMPLITUDE;
-                break;
-            case EFFECT_SHAKE:
-                offset.x += (hash_unit(seed) * 2 - 1) * SHAKE_AMPLITUDE;
-                offset.y += (hash_unit(seed ^ 0xa511e9b3u) * 2 - 1) * SHAKE_AMPLITUDE;
-                break;
-            default:
-                break;
-        }
-    }
-    return scale;
-}
-
-// Draws the entry's first count characters with their effects, wrapping whole words to the window.
-static void letters_draw(const Entry& entry, int count, float time)
-{
-    ImFont* font = ImGui::GetFont();
-    float fontSize = ImGui::GetFontSize();
-    ImVec2 start = ImGui::GetCursorScreenPos();
-    float wrap = start.x + ImGui::GetContentRegionAvail().x;
-    ImVec2 cursor = start;
-    float lineHeight = fontSize;
-    const char* end = entry.text.data() + entry.text.size();
-    auto width_get = [&](const char* from, const char* to, int at) {
-        ImU32 color;
-        ImVec2 offset;
-        return font->CalcTextSizeA(fontSize * letter_style_get(entry, at, time, color, offset), FLT_MAX, 0, from, to).x;
-    };
-    auto line_break = [&]() {
-        cursor = {start.x, cursor.y + lineHeight};
-        lineHeight = fontSize;
-    };
-
-    int at = 0;
-    for (const char* it = entry.text.data(); it < end && at < count; at++)
-    {
-        unsigned int codepoint = 0;
-        const char* next = it + ImTextCharFromUtf8(&codepoint, it, end);
-        if (codepoint == '\n')
-        {
-            line_break();
-            it = next;
-            continue;
-        }
-        bool isSpace = codepoint == ' ';
-        if (!isSpace && cursor.x > start.x && it[-1] == ' ')
-        {
-            float wordWidth = 0;
-            int wordAt = at;
-            for (const char* letter = it; letter < end && *letter != ' ' && *letter != '\n'; wordAt++)
-            {
-                unsigned int wordCodepoint = 0;
-                const char* letterNext = letter + ImTextCharFromUtf8(&wordCodepoint, letter, end);
-                wordWidth += width_get(letter, letterNext, wordAt);
-                letter = letterNext;
-            }
-            if (cursor.x + wordWidth > wrap && wordWidth <= wrap - start.x)
-                line_break();
-        }
-        ImU32 color;
-        ImVec2 offset;
-        float scale = letter_style_get(entry, at, time, color, offset);
-        float width = width_get(it, next, at);
-        if (cursor.x + width > wrap)
-        {
-            line_break();
-            if (isSpace)
-            {
-                it = next;
-                continue;
-            }
-        }
-        ImGui::GetWindowDrawList()->AddText(font, fontSize * scale, {cursor.x + offset.x, cursor.y + offset.y}, color,
-                                            it, next);
-        cursor.x += width;
-        lineHeight = std::max(lineHeight, fontSize * scale);
-        it = next;
-    }
-    ImGui::Dummy({wrap - start.x, cursor.y + lineHeight - start.y});
+    size_t start = 0;
+    while (start < text.size() && at > 0)
+        at -= is_letter_start(text, ++start);
+    size_t end = std::min(start + 1, text.size());
+    while (!is_letter_start(text, end))
+        end++;
+    return text.substr(start, end - start);
 }
 
 void Text::set(Play& play, Entry* next, TextMode mode, const std::string& onEnd)
@@ -169,54 +51,50 @@ void Text::set(Play& play, Entry* next, TextMode mode, const std::string& onEnd)
     Interrupt interrupt = mode == TEXT_SEQUENCE        ? INTERRUPT_ALWAYS
                           : mode == TEXT_INTERRUPTIBLE ? INTERRUPT_IF_ALLOWED
                                                        : INTERRUPT_NEVER;
-    if (!next->animation.empty())
-        play.body_play(next->animation, TRANSITION_NORMAL, interrupt);
-    delayBase = play.character->dialogue.delay;
-    delay = delayBase;
+    play.body.play(next->animation, TRANSITION_NORMAL, interrupt);
+    delay = delayBase = play.character->dialogue.delay;
     for (Effect& effect : next->effects)
     {
         if (effect.start != 0)
             continue;
         if (effect.type == EFFECT_DELAY)
             delay = delayBase = std::max(1, effect.delay);
-        if (effect.type == EFFECT_ANIMATION && !effect.animation.empty())
-            play.body_play(effect.animation, TRANSITION_FORCE);
+        if (effect.type == EFFECT_ANIMATION)
+            play.body.play(effect.animation, TRANSITION_FORCE);
     }
     if (!next->text.empty())
-        play.isTalking = !is_silent(*next, 0);
-}
-
-// Applies an effect as its character comes up: a delay or animation, a screen shake or a sound.
-static void effect_apply(Play& play, Text& text, const Effect& effect)
-{
-    if (effect.type == EFFECT_DELAY)
-        text.delay = text.delayBase = std::max(1, effect.delay);
-    else if (effect.type == EFFECT_ANIMATION && !effect.animation.empty())
-        play.body_play(effect.animation, TRANSITION_FORCE);
-    else if (effect.type == EFFECT_SCREENSHAKE)
-        play.shake_add(SCREENSHAKE_MAGNITUDE, SCREENSHAKE_TIME);
-    else if (effect.type == EFFECT_SOUND)
-        play.audio->play(effect.sound);
+        play.body.isTalking = !is_silent(*next, 0);
 }
 
+// Applies the effects coming up at a character: delays and animations, screen shakes and sounds.
 void Text::effects_apply(Play& play, int at)
 {
     for (Effect& effect : entry->effects)
-        if (effect.start == at)
-            effect_apply(play, *this, effect);
+    {
+        if (effect.start != at)
+            continue;
+        if (effect.type == EFFECT_DELAY)
+            delay = delayBase = std::max(1, effect.delay);
+        else if (effect.type == EFFECT_ANIMATION)
+            play.body.play(effect.animation, TRANSITION_FORCE);
+        else if (effect.type == EFFECT_SCREENSHAKE)
+            play.camera.shake_add(SCREENSHAKE_MAGNITUDE, SCREENSHAKE_TIME);
+        else if (effect.type == EFFECT_SOUND)
+            play.audio->play(effect.sound);
+    }
 }
 
 void Text::clear(Play& play)
 {
     if (!idleOnEnd.empty())
     {
-        play.idle_override_set(idleOnEnd);
-        play.idle_play();
+        play.body.idle_override_set(idleOnEnd);
+        play.body.idle_play();
         idleOnEnd.clear();
     }
     entry = nullptr;
     isScene = false;
-    play.isTalking = false;
+    play.body.isTalking = false;
 }
 
 bool Text::is_interruptible()
@@ -224,37 +102,65 @@ bool Text::is_interruptible()
     return !entry || entry->isTerminal;
 }
 
-void Text::update(Play& play, Vec2 screenSize)
+// The player's click or key: shows the rest of the line, or else moves to the next entry or closes the text.
+void Text::advance(Play& play)
+{
+    if (!entry)
+        return;
+    if (!isFinished)
+    {
+        for (int skipped = index + 1; skipped <= entry->length; skipped++)
+            effects_apply(play, skipped);
+        index = entry->length;
+        isFinished = true;
+        play.body.isTalking = false;
+        isScene &= !entry->isTerminal;
+    }
+    else if (!entry->choices.empty() || !entry->next.empty())
+    {
+        play.audio->play(play.character->sounds[SOUND_SELECT]);
+        if (!entry->choices.empty())
+            choose(play, 0);
+        else
+            set(play, play.character->dialogue.entry_get(entry->next), TEXT_SEQUENCE);
+    }
+    else
+        clear(play);
+}
+
+void Text::choose(Play& play, int choice)
+{
+    if (entry && choice >= 0 && choice < (int)entry->choices.size())
+        set(play, play.character->dialogue.entry_get(entry->choices[choice].next), TEXT_SEQUENCE);
+}
+
+// Reveals the next character when its delay is up, with its effects, blips and talking. Entries without text wait out
+// their animation, and finished last entries close after a while.
+void Text::update(Play& play)
 {
     if (!entry)
         return;
     Dialogue& dialogue = play.character->dialogue;
-    if (!isFinished)
-    {
     if (!isStarted)
     {
         isStarted = true;
         for (Effect& effect : entry->effects)
-                if (effect.start == 0 && (effect.type == EFFECT_SCREENSHAKE || effect.type == EFFECT_SOUND))
-                    effect_apply(play, *this, effect);
+            if (effect.start == 0 && effect.type == EFFECT_SCREENSHAKE)
+                play.camera.shake_add(SCREENSHAKE_MAGNITUDE, SCREENSHAKE_TIME);
+            else if (effect.start == 0 && effect.type == EFFECT_SOUND)
+                play.audio->play(effect.sound);
     }
-        if (++tick >= delay)
+    if (!isFinished && ++tick >= delay)
     {
         tick = 0;
         index++;
         delay = delayBase;
         effects_apply(play, index);
-            const char* letter = entry->text.c_str();
-            const char* end = letter + entry->text.size();
-            unsigned int codepoint = 0;
-            for (int i = 0; i < index - 1 && letter < end; i++)
-                letter += ImTextCharFromUtf8(&codepoint, letter, end);
-            int letterSize = letter < end ? ImTextCharFromUtf8(&codepoint, letter, end) : 0;
-            auto pause = dialogue.pauses.find(std::string(letter, letterSize));
+        auto pause = dialogue.pauses.find(letter_get(entry->text, index - 1));
         Pause found = pause == dialogue.pauses.end() ? Pause{} : pause->second;
         bool isSilentEffect = is_silent(*entry, index - 1);
         delay += found.delay;
-            play.isTalking = !found.isSilent && !isSilentEffect;
+        play.body.isTalking = !found.isSilent && !isSilentEffect;
         bool isBlipStep = dialogue.blipDelay > 0 && index % dialogue.blipDelay == 0;
         if (isSilentEffect)
             isBlipQueued = false;
@@ -269,112 +175,25 @@ void Text::update(Play& play, Vec2 screenSize)
         {
             isFinished = true;
             isBlipQueued = false;
-                play.isTalking = false;
+            play.body.isTalking = false;
             isScene &= !entry->isTerminal;
         }
     }
-    }
 
     if (entry->text.empty())
     {
-        Anm2Animation* animation = play.actor.animation_get();
-        bool isReady = entry->animation.empty() || !animation || !play.actor.isPlaying ||
+        Actor& actor = play.body.actor;
+        Anm2Animation* animation = actor.animation_get();
+        bool isReady = entry->animation.empty() || !animation || !actor.isPlaying ||
                        (!isAnimationStarted && animation->length <= 1) ||
-                       (animation->isLoop && isAnimationStarted && play.actor.time < animationTimePrevious);
+                       (animation->isLoop && isAnimationStarted && actor.time < animationTimePrevious);
         isAnimationStarted = true;
-        animationTimePrevious = play.actor.time;
+        animationTimePrevious = actor.time;
         if (entry->next.empty())
             clear(play);
         else if (isReady)
             set(play, dialogue.entry_get(entry->next), TEXT_SEQUENCE);
-        return;
     }
-
-    ImGuiStyle& style = ImGui::GetStyle();
-    ImVec2 size = {screenSize.x * WIDTH_MULTIPLIER - style.WindowPadding.x * 2,
-                   ImGui::GetTextLineHeightWithSpacing() * HEIGHT_LINES};
-    ImGui::SetNextWindowSize(size);
-    ImGui::SetNextWindowPos({screenSize.x / 2 - size.x / 2, screenSize.y - size.y - style.WindowPadding.y});
-    if (ImGui::Begin("##Text", nullptr,
-                     ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
-                         ImGuiWindowFlags_NoMove))
-    {
-        bool isHovered = ImGui::IsWindowHovered();
-        bool isSpace = ImGui::IsKeyReleased(ImGuiKey_Space);
-        bool isAdvance = (isHovered && ImGui::IsMouseReleased(ImGuiMouseButton_Left)) || isSpace;
-        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, {style.ItemSpacing.x, 0});
-        if (ImGui::BeginTabBar("##Name"))
-        {
-            if (ImGui::BeginTabItem(play.character->name.c_str()))
-                ImGui::EndTabItem();
-            ImGui::EndTabBar();
-        }
-        ImGui::PushFont(nullptr, FONT_NORMAL);
-        letters_draw(*entry, index, (float)ImGui::GetTime());
-
-        ImVec2 windowPosition = ImGui::GetWindowPos();
-        ImVec2 contentMin = {windowPosition.x + style.WindowPadding.x, windowPosition.y + style.WindowPadding.y};
-        ImVec2 contentMax = {windowPosition.x + ImGui::GetWindowWidth() - style.WindowPadding.x,
-                             windowPosition.y + ImGui::GetWindowHeight() - style.WindowPadding.y};
-        Entry* current = entry;
-        if (!isFinished && isAdvance)
-        {
-            for (int skipped = index + 1; skipped <= entry->length; skipped++)
-                effects_apply(play, skipped);
-            index = entry->length;
-            isFinished = true;
-            play.isTalking = false;
-            isScene &= !entry->isTerminal;
-        }
-        else if (isFinished && !current->choices.empty())
-        {
-            float buttonY = contentMax.y - ImGui::GetFrameHeight();
-            float separatorY = buttonY - style.ItemSpacing.y;
-            ImGui::GetWindowDrawList()->AddLine({contentMin.x, separatorY}, {contentMax.x, separatorY},
-                                                ImGui::GetColorU32(ImGuiCol_Separator));
-            ImGui::SetCursorScreenPos({contentMin.x, buttonY});
-            ImVec2 buttonSize = {row_width_get((int)current->choices.size()), 0};
-            for (int i = 0; i < (int)current->choices.size(); i++)
-            {
-                Choice& choice = current->choices[i];
-                ImGui::PushID(i);
-                if (is_fx(ImGui::Button(choice.text.c_str(), buttonSize)))
-                    set(play, dialogue.entry_get(choice.next), TEXT_SEQUENCE);
-                ImGui::SetItemTooltip("%s", choice.text.c_str());
-                ImGui::PopID();
-                if (i + 1 < (int)current->choices.size())
-                    ImGui::SameLine();
-            }
-            if (isHovered && isSpace)
-            {
-                play.audio->play(play.character->sounds[SOUND_SELECT]);
-                set(play, dialogue.entry_get(current->choices.front().next), TEXT_SEQUENCE);
-            }
-        }
-        else if (isFinished && !current->next.empty())
-        {
-            float side = ImGui::GetTextLineHeightWithSpacing();
-            ImVec2 center = {contentMax.x - side / 2 +
-                                 std::sin((float)ImGui::GetTime() * INDICATOR_SPEED) * side * INDICATOR_BOB,
-                             contentMax.y - side / 2};
-            float half = side * INDICATOR_SIZE;
-            ImGui::GetWindowDrawList()->AddTriangleFilled({center.x + half, center.y},
-                                                          {center.x - half, center.y - half},
-                                                          {center.x - half, center.y + half},
-                                                          ImGui::GetColorU32(ImGuiCol_Text));
-            if (isAdvance)
-            {
-                play.audio->play(play.character->sounds[SOUND_SELECT]);
-                set(play, dialogue.entry_get(current->next), TEXT_SEQUENCE);
-            }
-        }
-        else if (isFinished && isAdvance)
-            clear(play);
-        ImGui::PopFont();
-        ImGui::PopStyleVar();
-    }
-    ImGui::End();
-
-    if (entry && isFinished && entry->isTerminal && (life += ImGui::GetIO().DeltaTime) > LIFE_MAX)
+    else if (isFinished && entry->isTerminal && (life += TICK) > LIFE_MAX)
         clear(play);
 }

src/dialogue.h

@@ -12,7 +12,7 @@ enum TextMode
 };
 
 // Plays out a dialogue entry a character at a time with its effects, then offers its choices or the entry it leads to.
-// A scene holds the game still until its last entry finishes.
+// A scene holds the game still until its last entry finishes. The UI shows it and passes on the player's input.
 class Text
 {
 public:
@@ -31,7 +31,9 @@ public:
     bool isStarted = false;
 
     void set(Play& play, Entry* next, TextMode mode = TEXT_INTERRUPTIBLE, const std::string& onEnd = "");
-    void update(Play& play, Vec2 screenSize);
+    void update(Play& play);
+    void advance(Play& play);
+    void choose(Play& play, int choice);
     void clear(Play& play);
     bool is_interruptible();
 

src/interact.cpp

@@ -0,0 +1,289 @@
+#include "play.h"
+
+constexpr float AUTO_ACCELERATION = 0.45f;
+constexpr float AUTO_ANGLE_STEP = 0.08f;
+constexpr float AUTO_BRAKING = 2;
+constexpr float AUTO_CALORIE_EPSILON = 0.001f;
+constexpr float AUTO_DIGEST_ACCELERATION = 0.15f;
+constexpr float AUTO_DIGEST_RADIUS = 0.25f;
+constexpr float AUTO_DIGEST_SPEED = 3;
+constexpr float AUTO_SCALE_AREA = 512.0f * 512.0f;
+constexpr float AUTO_SCALE_MAX = 2;
+constexpr float AUTO_SCALE_MIN = 0.5f;
+constexpr float AUTO_SPEED = 9;
+constexpr float AUTO_TARGET_EPSILON = 0.001f;
+constexpr int AUTO_CLICK_COOLDOWN = 45;
+
+void Interactions::update(Play& play, Pointer pointer)
+{
+    Character& character = *play.character;
+    Body& body = play.body;
+    Text& text = play.text;
+    Actor& active = play.pointer_actor_get();
+    if (text.isScene)
+    {
+        isInteracting = isHolding = isHovering = false;
+        area = -1;
+        return;
+    }
+    bool wasInteracting = isInteracting;
+    bool wasHolding = isHolding;
+    bool wasHovering = isHovering;
+    isHovering = false;
+    isHolding &= isInteracting;
+    cooldowns.resize(character.interactAreas.size());
+    for (int& cooldown : cooldowns)
+        cooldown = text.entry ? std::max(0, cooldown - 1) : 0;
+
+    for (int i = 0; i < (int)character.interactAreas.size(); i++)
+    {
+        InteractArea& entry = character.interactAreas[i];
+        bool isInside = is_point_in_rect(body.actor.null_rect_get(entry.null), pointer.position);
+        if (play.cursorState == CURSOR_DEFAULT && isInside && !pointer.isCaptured && entry.type == pointer.type)
+        {
+            play.cursorState = CURSOR_HOVER;
+            active.play(entry.cursorHover, TRANSITION_IF_IDLE);
+            isHovering = true;
+            area = i;
+            bool isHoldStart = entry.isHold && (pointer.isClicked || (pointer.isDown && !isInteracting));
+            if (isHoldStart || (!entry.isHold && pointer.isClicked))
+            {
+                if (entry.isHold)
+                    isInteracting = isHolding = true;
+                else
+                {
+                    play.cursorState = CURSOR_ACTION;
+                    active.play(entry.cursorActive, TRANSITION_FORCE, INTERRUPT_ALWAYS);
+                }
+                play.audio->play(entry.sounds);
+                body.idle_override_set(entry.idleOnEnd);
+                play.particles_spawn(entry.particles, pointer.position);
+                if (entry.digestionClick > 0 && body.stats.calories > 0 && !body.stats.isDigesting)
+                    body.stats.digestionProgress += entry.digestionClick;
+                body.actor.pulse_add(entry.layer, entry.scaleAmplitude, entry.scaleCycles, entry.scaleTime);
+                bool isReady = cooldowns[i] <= 0;
+                cooldowns[i] = std::max(0, entry.dialogueCooldown);
+                Dialogue& dialogue = character.dialogue;
+                bool isFull = body.is_over_capacity() && dialogue.pools.contains(entry.dialoguePoolFull);
+                const std::string& pool = isFull ? entry.dialoguePoolFull : entry.dialoguePool;
+                if (dialogue.pools.contains(pool))
+                {
+                    if (text.is_interruptible() && isReady)
+                        text.set(play, dialogue.pool_get(pool), TEXT_INTERRUPTIBLE, entry.isHold ? "" : entry.idleOnEnd);
+                }
+                else if (entry.dialoguePool.empty() && !entry.animation.empty())
+                    body.play(entry.animation, TRANSITION_FORCE);
+            }
+            if (isInteracting)
+            {
+                play.cursorState = CURSOR_ACTION;
+                active.play(entry.cursorActive);
+                Vec2 moved = pointer.position - pointerPrevious;
+                if (entry.digestionHover > 0 && body.stats.calories > 0 && !body.stats.isDigesting &&
+                    (moved.x != 0 || moved.y != 0))
+                    body.stats.digestionProgress += entry.digestionHover;
+            }
+        }
+        if ((i == area && !isInside) || pointer.isReleased || pointer.isCaptured)
+        {
+            isInteracting = isHolding = false;
+            area = -1;
+        }
+    }
+
+    if ((wasInteracting && !isInteracting) || (wasHovering && !isHovering))
+        active.play(character.cursor.idle);
+    if (wasHolding && !isHolding && !body.actor.pending)
+        body.idle_play();
+    pointerPrevious = pointer.position;
+}
+
+// Moves the cursor toward a target, braking to land on it. Returns whether it's there.
+static bool is_target_reached(Vec2& position, Vec2& velocity, Vec2 target, float speed, float acceleration)
+{
+    Vec2 delta = target - position;
+    float distance = vec2_length(delta);
+    if (!std::isfinite(distance))
+        return false;
+    if (distance <= AUTO_TARGET_EPSILON)
+    {
+        position = target;
+        velocity = {};
+        return true;
+    }
+    Vec2 desired = delta / distance * std::min(speed, std::sqrt(AUTO_BRAKING * acceleration * distance));
+    Vec2 change = desired - velocity;
+    float changeLength = vec2_length(change);
+    velocity = changeLength > acceleration ? velocity + change / changeLength * acceleration : desired;
+    if (vec2_length(velocity) >= distance)
+    {
+        position = target;
+        velocity = {};
+        return true;
+    }
+    position = position + velocity;
+    return false;
+}
+
+static bool is_autofeed_food(const Item& item)
+{
+    return item.use == USE_EDIBLE && item.capacityBonus >= 0 && item.digestionBonus >= 0;
+}
+
+static bool is_edible(Play& play, const Item& item)
+{
+    return is_autofeed_food(item) && item.calories > 0 &&
+           play.body.stats.calories + item.calories <= play.body.capacity_max_get();
+}
+
+// The edible item in the world with the most calories, ties broken at random.
+static int food_best_get(Play& play)
+{
+    std::vector<Item>& catalog = play.character->catalog.items;
+    std::vector<ItemEntity>& list = play.items.list;
+    int best = -1;
+    int ties = 0;
+    for (int i = 0; i < (int)list.size(); i++)
+    {
+        Item& item = catalog[list[i].id];
+        if (!is_edible(play, item))
+            continue;
+        float bestCalories = best >= 0 ? catalog[list[best].id].calories : -1;
+        if (item.calories > bestCalories)
+            best = i, ties = 1;
+        else if (item.calories == bestCalories && SDL_rand(++ties) == 0)
+            best = i;
+    }
+    return best;
+}
+
+// The first interact area that helps digestion, which the autofeed rubs or pats.
+static InteractArea* digest_area_get(Play& play)
+{
+    for (InteractArea& area : play.character->interactAreas)
+        if (area.digestionClick > 0 || area.digestionHover > 0)
+            return &area;
+    return nullptr;
+}
+
+int Autofeed::type_get(Play& play)
+{
+    InteractArea* area = digest_area_get(play);
+    return area ? area->type : play.cursorType;
+}
+
+bool Autofeed::is_available(Play& play)
+{
+    bool isFood = play.body.stats.calories > 0 || play.items.is_spawn_possible(play);
+    for (ItemEntity& entity : play.items.list)
+        isFood |= play.character->catalog.items[entity.id].use == USE_EDIBLE;
+    return isFood;
+}
+
+void Autofeed::reset()
+{
+    isItemHeld = isDigestHeld = false;
+    target = -1;
+    clickCooldown = 0;
+    velocity = {};
+}
+
+void Autofeed::update(Play& play, Pointer& itemPointer, Pointer& interactPointer)
+{
+    Body& body = play.body;
+    Items& items = play.items;
+    Actor& cursor = play.autoCursor;
+    std::vector<Item>& catalog = play.character->catalog.items;
+    cursor.isVisible = false;
+    bool isWorldFood = false;
+    bool isAnyEdible = false;
+    for (ItemEntity& entity : items.list)
+    {
+        isWorldFood |= is_autofeed_food(catalog[entity.id]);
+        isAnyEdible |= is_edible(play, catalog[entity.id]);
+    }
+    if (!isEnabled || body.isStageUp)
+        return reset();
+    items.spawn_queue_add(play);
+    if (body.stats.calories <= AUTO_CALORIE_EPSILON && !isWorldFood)
+        return reset();
+
+    if (cursor.position.x == 0 && cursor.position.y == 0)
+        cursor.position = body.actor.position;
+    Rect bodyBounds = body.actor.bounds_get();
+    float speedScale = is_rect_valid(bodyBounds) ? std::clamp(std::sqrt(bodyBounds.w * bodyBounds.h / AUTO_SCALE_AREA),
+                                                              AUTO_SCALE_MIN, AUTO_SCALE_MAX)
+                                                 : 1;
+    Rect mouth = {NAN, NAN, NAN, NAN};
+    for (EatArea& eatArea : play.character->eatAreas)
+        if (!is_rect_valid(mouth))
+            mouth = body.eat_rect_get(eatArea);
+    bool isMouth = is_rect_valid(mouth);
+    auto move = [&](Vec2 destination, float speed, float acceleration) {
+        isActive = cursor.isVisible = true;
+        itemPointer = interactPointer = {.position = cursor.position, .isAutomated = true};
+        bool isThere =
+            is_target_reached(cursor.position, velocity, destination, speed * speedScale, acceleration * speedScale);
+        itemPointer.position = interactPointer.position = cursor.position;
+        return isThere;
+    };
+
+    if (items.held >= 0 && items.held < (int)items.list.size())
+    {
+        bool isCarried = isMouth && is_edible(play, catalog[items.list[items.held].id]);
+        move(isCarried ? rect_middle(mouth) : cursor.position, AUTO_SPEED, AUTO_ACCELERATION);
+        itemPointer.isDown = isItemHeld = isCarried;
+        itemPointer.isReleased = !isCarried;
+        isDigestHeld = false;
+        target = isCarried ? target : -1;
+        return;
+    }
+
+    bool isTargetValid = target >= 0 && target < (int)items.list.size() && is_edible(play, catalog[items.list[target].id]);
+    if (!isMouth || !isTargetValid)
+        target = isMouth ? food_best_get(play) : -1;
+    if (target >= 0)
+    {
+        Rect rect = items.list[target].actor.bounds_get();
+        if (!is_rect_valid(rect))
+            return reset();
+        move(rect_middle(rect), AUTO_SPEED, AUTO_ACCELERATION);
+        bool isInside = is_point_in_rect(rect, cursor.position);
+        itemPointer.target = target;
+        itemPointer.isClicked = isInside && !isItemHeld;
+        itemPointer.isDown = isInside || isItemHeld;
+        isItemHeld |= isInside;
+        isDigestHeld = false;
+        return;
+    }
+    if (!isWorldFood && isAnyEdible)
+        return reset();
+
+    InteractArea* area = digest_area_get(play);
+    Rect rect = area ? body.actor.null_rect_get(area->null) : Rect{NAN, NAN, NAN, NAN};
+    if (!is_rect_valid(rect))
+        return reset();
+    angle += AUTO_ANGLE_STEP;
+    float radius = std::max(1.0f, std::min(rect.w, rect.h) * AUTO_DIGEST_RADIUS);
+    Vec2 destination = rect_middle(rect) + Vec2{std::cos(angle), std::sin(angle)} * radius;
+    bool isThere = move(destination, AUTO_DIGEST_SPEED, AUTO_DIGEST_ACCELERATION);
+    interactPointer.type = area->type;
+    if (area->digestionHover > 0)
+    {
+        bool isInside = is_point_in_rect(rect, cursor.position);
+        interactPointer.isClicked = isInside && !isDigestHeld;
+        interactPointer.isDown = isInside;
+        interactPointer.isReleased = isDigestHeld && !isInside;
+        isDigestHeld = isInside;
+    }
+    else
+    {
+        clickCooldown = std::max(0, clickCooldown - 1);
+        interactPointer.isClicked = isThere && clickCooldown <= 0 && !isDigestHeld;
+        interactPointer.isReleased = isDigestHeld;
+        if (interactPointer.isClicked)
+            clickCooldown = AUTO_CLICK_COOLDOWN;
+        isDigestHeld = interactPointer.isClicked;
+    }
+    isItemHeld = false;
+}

src/items.cpp

@@ -1,139 +1,123 @@
 #include "play.h"
-#include <imgui.h>
 
-constexpr float AUTO_ACCELERATION = 0.45f;
-constexpr float AUTO_ANGLE_STEP = 0.08f;
-constexpr float AUTO_BRAKING = 2;
-constexpr float AUTO_CALORIE_EPSILON = 0.001f;
-constexpr float AUTO_DIGEST_ACCELERATION = 0.15f;
-constexpr float AUTO_DIGEST_RADIUS = 0.25f;
-constexpr float AUTO_DIGEST_SPEED = 3;
-constexpr float AUTO_SCALE_MAX = 2;
-constexpr float AUTO_SCALE_MIN = 0.5f;
-constexpr float AUTO_SCALE_AREA = 512.0f * 512.0f;
-constexpr float AUTO_SPEED = 9;
-constexpr float AUTO_TARGET_EPSILON = 0.001f;
-constexpr int AUTO_CLICK_COOLDOWN = 45;
 constexpr float HOLD_SPIN = 0.1f;
 constexpr float ROTATION_GROUND_DAMPING = 0.85f;
 constexpr float ROTATION_MAX = 90;
 constexpr float ROTATION_RETURN_SPEED = 120;
 constexpr float THROW_THRESHOLD = 10;
 
-void Play::item_add(int id, Vec2 position, Vec2 velocity, float rotation)
+void Items::add(Play& play, int id, Vec2 position, Vec2 velocity, float rotation)
 {
-    ItemEntity& entity = items.emplace_back(ItemEntity{character->item_actor_get(id), velocity, 0, id});
+    ItemEntity& entity = list.emplace_back(ItemEntity{play.character->item_actor_get(id), velocity, 0, id});
     entity.actor.position = position;
-    entity.actor.overrides.push_back({.rotation = rotation, .target = TARGET_ROOT, .isRotation = true});
+    entity.actor.rotation = rotation;
     discovered[id] = true;
 }
 
-int Play::spawn_delay_get()
+// Forgets which item is being eaten, and lets go of the held one unless asked to keep it.
+void Items::drop(Hold hold)
 {
-    return std::max(1, (int)std::round(character->spawnDelay * std::pow(character->spawnDelayMultiplier, stage)));
+    if (hold == HOLD_RELEASE)
+    {
+        held = -1;
+        feeding.animation = -1;
+    }
+    feeding.item = -1;
+    feeding.event = -1;
+    feeding.rect = {NAN, NAN, NAN, NAN};
+}
+
+int Items::spawn_delay_get(Play& play)
+{
+    Catalog& catalog = play.character->catalog;
+    return std::max(1, (int)std::round(catalog.spawnDelay * std::pow(catalog.spawnDelayMultiplier, play.body.stage)));
 }
 
 static float spawn_weight_get(Play& play, int id)
 {
-    Item& item = play.character->items[id];
-    if (item.calories > play.capacity_max_get() || item.rarity < 0)
+    Catalog& catalog = play.character->catalog;
+    Item& item = catalog.items[id];
+    if (item.calories > play.body.capacity_max_get() || item.rarity < 0)
         return 0;
-    return std::max(0.0f, play.character->rarities[item.rarity].weight);
+    return std::max(0.0f, catalog.rarities[item.rarity].weight);
 }
 
-bool Play::is_spawn_possible()
+bool Items::is_spawn_possible(Play& play)
 {
-    if ((int)items.size() >= character->spawnLimit)
+    Catalog& catalog = play.character->catalog;
+    if ((int)list.size() >= catalog.spawnLimit)
         return false;
-    for (int i = 0; i < (int)character->items.size(); i++)
-        if (spawn_weight_get(*this, i) > 0)
+    for (int i = 0; i < (int)catalog.items.size(); i++)
+        if (spawn_weight_get(play, i) > 0)
             return true;
     return false;
 }
 
-void Play::spawn_queue_add(int id)
+void Items::spawn_queue_add(Play& play, int id)
 {
-    if (id < 0 || id >= (int)character->items.size())
+    Catalog& catalog = play.character->catalog;
+    if (id < 0 || id >= (int)catalog.items.size())
         return;
-    Item& item = character->items[id];
-    audio->play(character->sounds[SOUND_SUMMON]);
-    if (item.rarity >= 0)
-        audio->play(character->rarities[item.rarity].sound);
+    play.audio->play(play.character->sounds[SOUND_SUMMON]);
+    if (catalog.items[id].rarity >= 0)
+        play.audio->play(catalog.rarities[catalog.items[id].rarity].sound);
     spawnQueue.push_back(id);
-    spawnDelay = spawn_delay_get();
+    spawnDelay = spawn_delay_get(play);
 }
 
 // Queues an item picked at random by rarity, once the spawn delay is up.
-void Play::spawn_queue_add()
+void Items::spawn_queue_add(Play& play)
 {
-    if (spawnDelay > 0 || !is_spawn_possible())
+    if (spawnDelay > 0 || !is_spawn_possible(play))
         return;
+    std::vector<Item>& items = play.character->catalog.items;
     float total = 0;
-    for (int i = 0; i < (int)character->items.size(); i++)
-        total += spawn_weight_get(*this, i);
+    for (int i = 0; i < (int)items.size(); i++)
+        total += spawn_weight_get(play, i);
     float roll = random_get(0, total);
-    for (int i = 0; i < (int)character->items.size(); i++)
-        if (float weight = spawn_weight_get(*this, i); weight > 0 && (roll -= weight) < 0)
-            return spawn_queue_add(i);
+    for (int i = 0; i < (int)items.size(); i++)
+        if (float weight = spawn_weight_get(play, i); weight > 0 && (roll -= weight) < 0)
+            return spawn_queue_add(play, i);
 }
 
-// Where an eat area takes food: its null now, or at the start of its animation when it isn't showing.
-Rect Play::eat_rect_get(const EatArea& eatArea)
+void Items::update(Play& play, Pointer pointer)
 {
-    Rect rect = actor.null_rect_get(eatArea.null);
-    if (!is_rect_valid(rect))
-        rect = actor.null_rect_get(eatArea.null, actor.anm2->animation_get(eatArea.animation + suffix_get()), 0);
-    return rect;
-}
-
-// Forgets which item is being eaten, and lets go of the held one when asked.
-void Play::item_drop(Hold hold)
-{
-    heldItem = hold == HOLD_RELEASE ? -1 : heldItem;
-    eatAnimation = hold == HOLD_RELEASE ? -1 : eatAnimation;
-    eatItem = -1;
-    eatEvent = -1;
-    eatRect = {NAN, NAN, NAN, NAN};
-}
-
-static Actor& pointer_actor_get(Play& play)
-{
-    return play.isAutofeedActive ? play.autoCursor : play.cursor;
-}
-
-void Play::items_update(Pointer pointer)
-{
-    Character& data = *character;
-    Actor& active = pointer_actor_get(*this);
-    int areaIndex = data.area_get(stage);
-    Area area = areaIndex >= 0 ? data.areas[areaIndex] : Area{};
-    bool isOver = is_over_capacity();
-    auto text_play = [&](const char* hook) {
+    Character& character = *play.character;
+    Body& body = play.body;
+    Stats& stats = body.stats;
+    Actor& active = play.pointer_actor_get();
+    Audio& audio = *play.audio;
+    int areaIndex = character.area_get(body.stage);
+    Area area = areaIndex >= 0 ? character.areas[areaIndex] : Area{};
+    Rect bounds = play.bounds;
+    bool isOver = body.is_over_capacity();
+    auto text_play = [&](Hook hook) {
         if (!pointer.isAutomated)
-            text.set(*this, data.dialogue.hook_get(hook));
+            play.text.set(play, character.dialogue.hook_get(hook));
     };
-    auto held_release = [&](bool isThrown) {
-        item_drop();
-        active.play(data.cursorIdle);
-        if (!isThrown && !actor.pending)
-            idle_play();
+    auto release = [&](bool isThrown) {
+        drop();
+        active.play(character.cursor.idle);
+        if (!isThrown && !body.actor.pending)
+            body.idle_play();
     };
-    if (text.isScene && heldItem >= 0)
+    if (play.text.isScene && held >= 0)
     {
-        held_release(false);
-        isEatTextPending = false;
+        release(false);
+        feeding.isTextPending = false;
     }
 
-    if (isEatTextPending && eatAnimation == actor.animation && (!actor.isPlaying || actor.is_finished()))
+    if (feeding.isTextPending && feeding.animation == body.actor.animation &&
+        (!body.actor.isPlaying || body.actor.is_finished()))
     {
-        text.set(*this, data.dialogue.hook_get(isEatTextFull ? "EatFull" : "Eat"));
-        isEatTextPending = false;
-        eatAnimation = -1;
+        play.text.set(play, character.dialogue.hook_get(feeding.isTextFull ? HOOK_EAT_FULL : HOOK_EAT));
+        feeding.isTextPending = false;
+        feeding.animation = -1;
     }
 
-    bool wasItemHovered = isItemHovered;
-    isItemHovered = false;
-    tooltipItem = -1;
+    bool wasHovered = isHovered;
+    isHovered = false;
+    tooltip = -1;
     if (spawnDelay > 0)
         spawnDelay--;
     for (int id : spawnQueue)
@@ -142,149 +126,151 @@ void Play::items_update(Pointer pointer)
         Vec2 position = {spawn.x + random_get(0, spawn.w), spawn.y + random_get(0, spawn.h)};
         if (!discovered[id])
         {
-            toast_add(STRING_ToastNewItemFound);
-            audio->play(data.sounds[SOUND_NEW_ITEM]);
+            play.toast_add("New item found!");
+            audio.play(character.sounds[SOUND_NEW_ITEM]);
         }
-        item_add(id, position);
-        progress.totalSpawned++;
-        particles_spawn(data.summonParticles, position);
+        add(play, id, position);
+        stats.totalSpawned++;
+        play.particles_spawn(character.catalog.summonParticles, position);
     }
     spawnQueue.clear();
 
-    if (heldItem >= 0 && heldItem < (int)items.size())
+    if (held >= 0 && held < (int)list.size())
     {
-        ItemEntity& held = items[heldItem];
-        Item& item = data.items[held.id];
-        float& rotation = held.rotation_get();
-        Vec2 delta = itemPointerPrevious - pointer.position;
-        held.actor.position = pointer.position;
-        held.velocity = {};
-        held.angularVelocity = (held.angularVelocity - delta.x * HOLD_SPIN) * area.friction;
+        ItemEntity& entity = list[held];
+        Item& item = character.catalog.items[entity.id];
+        float& rotation = *entity.actor.rotation;
+        Vec2 delta = pointerPrevious - pointer.position;
+        entity.actor.position = pointer.position;
+        entity.velocity = {};
+        entity.angularVelocity = (entity.angularVelocity - delta.x * HOLD_SPIN) * area.friction;
         rotation = std::clamp(rotation * area.friction, -ROTATION_MAX, ROTATION_MAX);
         int removed = -1;
 
         if (item.use == USE_EDIBLE)
         {
-            bool isEdible = item.calories > 0 && progress.calories + item.calories <= capacity_max_get();
-            if (isJustItemHeld)
-                text_play(isEdible                           ? (isOver ? "FeedFull" : "Feed")
-                          : item.calories > progress.capacity ? "LowCapacity"
-                                                              : "Full");
-            isJustItemHeld = false;
-            for (EatArea& eatArea : data.eatAreas)
+            bool isEdible = item.calories > 0 && stats.calories + item.calories <= body.capacity_max_get();
+            if (isJustHeld)
+                text_play(isEdible                         ? (isOver ? HOOK_FEED_FULL : HOOK_FEED)
+                          : item.calories > stats.capacity ? HOOK_LOW_CAPACITY
+                                                           : HOOK_FULL);
+            isJustHeld = false;
+            for (EatArea& eatArea : character.eatAreas)
             {
-                Rect rect = eat_rect_get(eatArea);
-                bool isInside = is_point_in_rect(rect, held.actor.position);
+                Rect rect = body.eat_rect_get(eatArea);
+                bool isInside = is_point_in_rect(rect, entity.actor.position);
                 bool isAreaActive = isEdible && isInside;
-                bool isPending = eatItem == heldItem && eatEvent == eatArea.event;
-                bool isPendingActive = isPending && is_point_in_rect(eatRect, held.actor.position);
-                std::string eatName = eatArea.animation + suffix_get();
+                bool isPending = feeding.item == held && feeding.event == eatArea.event;
+                bool isPendingActive = isPending && is_point_in_rect(feeding.rect, entity.actor.position);
+                std::string eatName = eatArea.animation + body.suffix;
                 if (isAreaActive || isPendingActive)
                 {
-                    if (isPending && eatArea.event >= 0 && actor.event == eatArea.event)
+                    if (isPending && eatArea.event >= 0 && body.actor.event == eatArea.event)
                     {
-                        actor.event = -1;
-                        progress.calories += item.calories;
-                        progress.totalCalories += item.calories;
-                        progress.capacity = std::clamp(progress.capacity + item.capacityBonus, data.capacityMin,
-                                                       data.capacityMax);
-                        progress.digestionRate = std::clamp(progress.digestionRate + item.digestionBonus,
-                                                            data.digestionRateMin, data.digestionRateMax);
-                        progress.totalConsumed++;
-                        removed = heldItem;
-                        item_drop();
-                        eatAnimation = actor.animation;
-                        isEatTextPending = !pointer.isAutomated;
-                        isEatTextFull = isOver;
+                        Traits& traits = character.traits;
+                        body.actor.event = -1;
+                        stats.calories += item.calories;
+                        stats.totalCalories += item.calories;
+                        stats.capacity =
+                            std::clamp(stats.capacity + item.capacityBonus, traits.capacityMin, traits.capacityMax);
+                        stats.digestionRate = std::clamp(stats.digestionRate + item.digestionBonus,
+                                                         traits.digestionRateMin, traits.digestionRateMax);
+                        stats.totalConsumed++;
+                        removed = held;
+                        drop();
+                        feeding.animation = body.actor.animation;
+                        feeding.isTextPending = !pointer.isAutomated;
+                        feeding.isTextFull = isOver;
                         break;
                     }
-                    eatItem = heldItem;
-                    eatEvent = eatArea.event;
+                    feeding.item = held;
+                    feeding.event = eatArea.event;
                     if (isAreaActive)
-                        eatRect = rect;
-                    if (!actor.is_playing(eatName))
-                        body_play(eatArea.animation, TRANSITION_NORMAL, INTERRUPT_ALWAYS);
+                        feeding.rect = rect;
+                    if (!body.actor.is_playing(eatName))
+                        body.play(eatArea.animation, TRANSITION_NORMAL, INTERRUPT_ALWAYS);
                 }
-                else if (eatItem == heldItem)
-                    item_drop(HOLD_KEEP);
-                if (actor.is_playing(eatName) && !isInside)
-                    text_play(isOver ? "FoodTakenFull" : "FoodTaken");
+                else if (feeding.item == held)
+                    drop(HOLD_KEEP);
+                if (body.actor.is_playing(eatName) && !isInside)
+                    text_play(isOver ? HOOK_FOOD_TAKEN_FULL : HOOK_FOOD_TAKEN);
                 if (isAreaActive)
                     break;
             }
         }
         else if (item.use == USE_TOOL && item.isToggleSpritesheet &&
-                 is_point_in_rect(actor.bounds_get(), held.actor.position) && data.alternateTexture &&
-                 data.alternateSheet < (int)actor.sheets.size())
+                 is_point_in_rect(body.actor.bounds_get(), entity.actor.position) && character.alternate.texture &&
+                 character.alternate.sheet < (int)body.actor.sheets.size())
         {
-            progress.isAlternate = !progress.isAlternate;
-            actor.sheets[data.alternateSheet] =
-                progress.isAlternate ? data.alternateTexture : data.anm2->sheets[data.alternateSheet];
-            audio->play(data.alternateSound);
-            removed = heldItem;
-            item_drop();
+            stats.isAlternate = !stats.isAlternate;
+            body.actor.sheets[character.alternate.sheet] =
+                stats.isAlternate ? character.alternate.texture : character.anm2->sheets[character.alternate.sheet];
+            audio.play(character.alternate.sound);
+            removed = held;
+            drop();
         }
 
         if (removed < 0 && pointer.isReleased)
         {
             bool isThrown = std::abs(delta.x) >= THROW_THRESHOLD || std::abs(delta.y) >= THROW_THRESHOLD;
-            audio->play(data.sounds[isThrown ? SOUND_THROW : SOUND_RELEASE]);
+            audio.play(character.sounds[isThrown ? SOUND_THROW : SOUND_RELEASE]);
             if (isThrown)
-                text_play("Throw");
-            held.velocity = held.velocity - delta;
-            held_release(isThrown);
+                text_play(HOOK_THROW);
+            entity.velocity = entity.velocity - delta;
+            release(isThrown);
         }
         if (removed >= 0)
-            items.erase(items.begin() + removed);
+            list.erase(list.begin() + removed);
     }
 
     int moved = -1;
-    bool isTargetLocked = pointer.target >= 0 && pointer.target < (int)items.size();
+    bool isTargetLocked = pointer.target >= 0 && pointer.target < (int)list.size();
     float right = bounds.x + bounds.w;
     float bottom = bounds.y + bounds.h;
-    for (int i = 0; i < (int)items.size(); i++)
+    for (int i = 0; i < (int)list.size(); i++)
     {
-        ItemEntity& entity = items[i];
+        ItemEntity& entity = list[i];
         Vec2& position = entity.actor.position;
         Vec2& velocity = entity.velocity;
-        float& rotation = entity.rotation_get();
-        float gravity = data.items[entity.id].gravity != 0 ? data.items[entity.id].gravity : area.gravity;
-        entity.actor.update(*audio);
+        float& rotation = *entity.actor.rotation;
+        float gravity = character.catalog.items[entity.id].gravity;
+        gravity = gravity != 0 ? gravity : area.gravity;
+        entity.actor.update(audio);
         position = position + velocity;
         rotation += entity.angularVelocity;
 
         if (is_point_in_rect(entity.actor.bounds_get(), pointer.position) && !pointer.isCaptured &&
             (!isTargetLocked || i == pointer.target))
         {
-            isItemHovered = true;
-            tooltipItem = heldItem == i || pointer.isAutomated ? -1 : entity.id;
-            active.play(data.cursorHover, TRANSITION_IF_IDLE);
-            cursorState = CURSOR_HOVER;
+            isHovered = true;
+            tooltip = held == i || pointer.isAutomated ? -1 : entity.id;
+            active.play(character.cursor.hover, TRANSITION_IF_IDLE);
+            play.cursorState = CURSOR_HOVER;
             if (pointer.isClicked)
             {
-                audio->play(data.sounds[SOUND_GRAB]);
-                particles_spawn(data.grabParticles, pointer.position);
-                isJustItemHeld = true;
+                audio.play(character.sounds[SOUND_GRAB]);
+                play.particles_spawn(character.cursor.grabParticles, pointer.position);
+                isJustHeld = true;
             }
             if (pointer.isDown)
             {
-                active.play(data.cursorGrab);
-                cursorState = CURSOR_ACTION;
-                heldItem = moved = i;
+                active.play(character.cursor.grab);
+                play.cursorState = CURSOR_ACTION;
+                held = moved = i;
             }
             if (pointer.isRightClicked)
             {
-                audio->play(data.sounds[SOUND_DISPOSE]);
-                active.play(data.cursorDispose, TRANSITION_FORCE, INTERRUPT_NEVER);
-                particles_spawn(data.disposeParticles, position);
-                heldItem = heldItem == i ? -1 : heldItem > i ? heldItem - 1 : heldItem;
+                audio.play(character.sounds[SOUND_DISPOSE]);
+                active.play(character.cursor.dispose, TRANSITION_FORCE, INTERRUPT_NEVER);
+                play.particles_spawn(character.catalog.disposeParticles, position);
+                held = held == i ? -1 : held > i ? held - 1 : held;
                 moved = moved == i ? -1 : moved > i ? moved - 1 : moved;
-                items.erase(items.begin() + i--);
+                list.erase(list.begin() + i--);
                 continue;
             }
         }
 
-        if (i != heldItem)
+        if (i != held)
         {
             if (position.x <= bounds.x || position.x >= right)
             {
@@ -292,7 +278,7 @@ void Play::items_update(Pointer pointer)
                 velocity.x = -velocity.x * area.friction;
                 entity.angularVelocity = -entity.angularVelocity * area.friction;
                 rotation = -rotation;
-                audio->play(data.sounds[SOUND_BOUNCE]);
+                audio.play(character.sounds[SOUND_BOUNCE]);
             }
             if (position.y <= bounds.y || position.y >= bottom)
             {
@@ -301,7 +287,7 @@ void Play::items_update(Pointer pointer)
                     position.y = bottom;
                     velocity = {velocity.x * area.friction, 0};
                     rotation = std::remainder(rotation, 360.0f);
-                    float step = ROTATION_RETURN_SPEED * ImGui::GetIO().DeltaTime;
+                    float step = ROTATION_RETURN_SPEED * TICK;
                     rotation = std::abs(rotation) <= step ? 0 : rotation - std::copysign(step, rotation);
                     entity.angularVelocity *= ROTATION_GROUND_DAMPING;
                 }
@@ -309,7 +295,7 @@ void Play::items_update(Pointer pointer)
                 {
                     velocity.y = -velocity.y;
                     entity.angularVelocity *= area.friction;
-                    audio->play(data.sounds[SOUND_BOUNCE]);
+                    audio.play(character.sounds[SOUND_BOUNCE]);
                 }
                 velocity.y *= area.friction;
             }
@@ -319,276 +305,14 @@ void Play::items_update(Pointer pointer)
         position = {std::clamp(position.x, bounds.x, right), std::clamp(position.y, bounds.y, bottom)};
     }
 
-    if (moved >= 0 && moved < (int)items.size() - 1)
+    if (moved >= 0 && moved < (int)list.size() - 1)
     {
-        ItemEntity entity = std::move(items[moved]);
-        items.erase(items.begin() + moved);
-        items.push_back(std::move(entity));
-        heldItem = (int)items.size() - 1;
+        ItemEntity entity = std::move(list[moved]);
+        list.erase(list.begin() + moved);
+        list.push_back(std::move(entity));
+        held = (int)list.size() - 1;
     }
-    if (wasItemHovered && !isItemHovered)
-        active.play(data.cursorIdle);
-    itemPointerPrevious = pointer.position;
-}
-
-void Play::interact_update(Pointer pointer)
-{
-    Character& data = *character;
-    Actor& active = pointer_actor_get(*this);
-    if (text.isScene)
-    {
-        isInteracting = isHoldInteracting = isHovering = false;
-        interactArea = -1;
-        return;
-    }
-    bool wasInteracting = isInteracting;
-    bool wasHolding = isHoldInteracting;
-    bool wasHovering = isHovering;
-    isHovering = false;
-    isHoldInteracting &= isInteracting;
-    dialogueCooldowns.resize(data.interactAreas.size());
-    for (int& cooldown : dialogueCooldowns)
-        cooldown = text.entry ? std::max(0, cooldown - 1) : 0;
-
-    for (int i = 0; i < (int)data.interactAreas.size(); i++)
-    {
-        InteractArea& area = data.interactAreas[i];
-        Rect rect = actor.null_rect_get(area.null);
-        bool isInside = is_point_in_rect(rect, pointer.position);
-        if (cursorState == CURSOR_DEFAULT && isInside && !pointer.isCaptured && area.type == pointer.type)
-        {
-            cursorState = CURSOR_HOVER;
-            active.play(area.cursorHover, TRANSITION_IF_IDLE);
-            isHovering = true;
-            interactArea = i;
-            bool isHoldStart = area.isHold && (pointer.isClicked || (pointer.isDown && !isInteracting));
-            if (isHoldStart || (!area.isHold && pointer.isClicked))
-            {
-                if (area.isHold)
-                    isInteracting = isHoldInteracting = true;
-                else
-                {
-                    cursorState = CURSOR_ACTION;
-                    active.play(area.cursorActive, TRANSITION_FORCE, INTERRUPT_ALWAYS);
-                }
-                audio->play(area.sounds);
-                idle_override_set(area.idleOnEnd);
-                particles_spawn(area.particles, pointer.position);
-                if (area.digestionClick > 0 && progress.calories > 0 && !progress.isDigesting)
-                    progress.digestionProgress += area.digestionClick;
-                if (area.layer >= 0)
-                    actor.overrides.push_back({.amplitude = {area.scaleAmplitude, area.scaleAmplitude},
-                                               .cycles = area.scaleCycles,
-                                               .time = area.scaleTime,
-                                               .timeStart = area.scaleTime,
-                                               .id = area.layer});
-                bool isReady = dialogueCooldowns[i] <= 0;
-                dialogueCooldowns[i] = std::max(0, area.dialogueCooldown);
-                bool isFull = is_over_capacity() && data.dialogue.pools.contains(area.dialoguePoolFull);
-                const std::string& pool = isFull ? area.dialoguePoolFull : area.dialoguePool;
-                if (data.dialogue.pools.contains(pool))
-                {
-                    if (text.is_interruptible() && isReady)
-                        text.set(*this, data.dialogue.pool_get(pool), TEXT_INTERRUPTIBLE,
-                                 area.isHold ? "" : area.idleOnEnd);
-                }
-                else if (area.dialoguePool.empty() && !area.animation.empty())
-                    body_play(area.animation, TRANSITION_FORCE);
-            }
-            if (isInteracting)
-            {
-                cursorState = CURSOR_ACTION;
-                active.play(area.cursorActive);
-                Vec2 moved = pointer.position - pointerPrevious;
-                if (area.digestionHover > 0 && progress.calories > 0 && !progress.isDigesting &&
-                    (moved.x != 0 || moved.y != 0))
-                    progress.digestionProgress += area.digestionHover;
-            }
-        }
-        if ((i == interactArea && !isInside) || pointer.isReleased || pointer.isCaptured)
-        {
-            isInteracting = isHoldInteracting = false;
-            interactArea = -1;
-        }
-    }
-
-    if ((wasInteracting && !isInteracting) || (wasHovering && !isHovering))
-        active.play(data.cursorIdle);
-    if (wasHolding && !isHoldInteracting && !actor.pending)
-        idle_play();
+    if (wasHovered && !isHovered)
+        active.play(character.cursor.idle);
     pointerPrevious = pointer.position;
-    if (isJustDigested && text.is_interruptible())
-        text.set(*this, data.dialogue.hook_get("Digest"));
-    if (isJustStageUp)
-        text.set(*this, data.dialogue.hook_get("StageUp"));
-}
-
-// Moves the cursor toward a target, braking to land on it. Returns whether it's there.
-static bool is_target_reached(Vec2& position, Vec2& velocity, Vec2 target, float speed, float acceleration)
-{
-    Vec2 delta = target - position;
-    float distance = vec2_length(delta);
-    if (!std::isfinite(distance))
-        return false;
-    if (distance <= AUTO_TARGET_EPSILON)
-    {
-        position = target;
-        velocity = {};
-        return true;
-    }
-    Vec2 desired = delta / distance * std::min(speed, std::sqrt(AUTO_BRAKING * acceleration * distance));
-    Vec2 change = desired - velocity;
-    float changeLength = vec2_length(change);
-    velocity = changeLength > acceleration ? velocity + change / changeLength * acceleration : desired;
-    if (vec2_length(velocity) >= distance)
-    {
-        position = target;
-        velocity = {};
-        return true;
-    }
-    position = position + velocity;
-    return false;
-}
-
-static bool is_autofeed_food(const Item& item)
-{
-    return item.use == USE_EDIBLE && item.capacityBonus >= 0 && item.digestionBonus >= 0;
-}
-
-static bool is_edible(Play& play, const Item& item)
-{
-    return is_autofeed_food(item) && item.calories > 0 && play.progress.calories + item.calories <= play.capacity_max_get();
-}
-
-// The edible item in the world with the most calories, ties broken at random.
-static int food_best_get(Play& play)
-{
-    int best = -1;
-    int ties = 0;
-    for (int i = 0; i < (int)play.items.size(); i++)
-    {
-        Item& item = play.character->items[play.items[i].id];
-        if (!is_edible(play, item))
-            continue;
-        float bestCalories = best >= 0 ? play.character->items[play.items[best].id].calories : -1;
-        if (item.calories > bestCalories)
-            best = i, ties = 1;
-        else if (item.calories == bestCalories && SDL_rand(++ties) == 0)
-            best = i;
-    }
-    return best;
-}
-
-// Plays for the player: spawns food, carries it to the mouth, and rubs or pats the belly along when nothing fits.
-void Play::autofeed_update(Pointer& itemPointer, Pointer& interactPointer)
-{
-    Character& data = *character;
-    isAutofeedActive = false;
-    autoCursor.isVisible = false;
-    auto reset = [&]() {
-        isAutoItemHeld = isAutoDigestHeld = false;
-        autoTarget = -1;
-        autoClickCooldown = 0;
-        autoVelocity = {};
-    };
-    bool isWorldFood = false;
-    bool isAnyEdible = false;
-    for (ItemEntity& entity : items)
-    {
-        isWorldFood |= is_autofeed_food(data.items[entity.id]);
-        isAnyEdible |= is_edible(*this, data.items[entity.id]);
-    }
-    if (!isAutofeed || isStageUp || isJustStageUp || isJustStageFinal)
-        return reset();
-    spawn_queue_add();
-    if (progress.calories <= AUTO_CALORIE_EPSILON && !isWorldFood)
-        return reset();
-
-    if (autoCursor.position.x == 0 && autoCursor.position.y == 0)
-        autoCursor.position = actor.position;
-    Rect bodyBounds = actor.bounds_get();
-    float speedScale = is_rect_valid(bodyBounds) ? std::clamp(std::sqrt(bodyBounds.w * bodyBounds.h / AUTO_SCALE_AREA),
-                                                              AUTO_SCALE_MIN, AUTO_SCALE_MAX)
-                                                 : 1;
-    Rect mouth = {NAN, NAN, NAN, NAN};
-    for (EatArea& eatArea : data.eatAreas)
-        if (!is_rect_valid(mouth))
-            mouth = eat_rect_get(eatArea);
-    bool isMouth = is_rect_valid(mouth);
-    auto move = [&](Vec2 target, float speed, float acceleration) {
-        isAutofeedActive = autoCursor.isVisible = true;
-        itemPointer = interactPointer = {.position = autoCursor.position, .isAutomated = true};
-        bool isThere = is_target_reached(autoCursor.position, autoVelocity, target, speed * speedScale,
-                                   acceleration * speedScale);
-        itemPointer.position = interactPointer.position = autoCursor.position;
-        return isThere;
-    };
-
-    if (heldItem >= 0 && heldItem < (int)items.size())
-    {
-        if (isMouth && is_edible(*this, data.items[items[heldItem].id]))
-        {
-            move(rect_middle(mouth), AUTO_SPEED, AUTO_ACCELERATION);
-            itemPointer.isDown = isAutoItemHeld = true;
-            isAutoDigestHeld = false;
-            return;
-        }
-        move(autoCursor.position, AUTO_SPEED, AUTO_ACCELERATION);
-        itemPointer.isReleased = true;
-        isAutoItemHeld = false;
-        autoTarget = -1;
-        return;
-    }
-
-    bool isTargetValid = autoTarget >= 0 && autoTarget < (int)items.size() &&
-                         is_edible(*this, data.items[items[autoTarget].id]);
-    if (!isMouth || !isTargetValid)
-        autoTarget = isMouth ? food_best_get(*this) : -1;
-    if (autoTarget >= 0)
-    {
-        Rect rect = items[autoTarget].actor.bounds_get();
-        if (!is_rect_valid(rect))
-            return reset();
-        move(rect_middle(rect), AUTO_SPEED, AUTO_ACCELERATION);
-        bool isInside = is_point_in_rect(rect, autoCursor.position);
-        itemPointer.target = autoTarget;
-        itemPointer.isClicked = isInside && !isAutoItemHeld;
-        itemPointer.isDown = isInside || isAutoItemHeld;
-        isAutoItemHeld |= isInside;
-        isAutoDigestHeld = false;
-        return;
-    }
-    if (!(isWorldFood || !isAnyEdible))
-        return reset();
-
-    InteractArea* digestArea = nullptr;
-    for (InteractArea& area : data.interactAreas)
-        if (!digestArea && (area.digestionClick > 0 || area.digestionHover > 0))
-            digestArea = &area;
-    Rect rect = digestArea ? actor.null_rect_get(digestArea->null) : Rect{NAN, NAN, NAN, NAN};
-    if (!is_rect_valid(rect))
-        return reset();
-    autoAngle += AUTO_ANGLE_STEP;
-    float radius = std::max(1.0f, std::min(rect.w, rect.h) * AUTO_DIGEST_RADIUS);
-    Vec2 target = rect_middle(rect) + Vec2{std::cos(autoAngle), std::sin(autoAngle)} * radius;
-    bool isThere = move(target, AUTO_DIGEST_SPEED, AUTO_DIGEST_ACCELERATION);
-    interactPointer.type = digestArea->type;
-    if (digestArea->digestionHover > 0)
-    {
-        bool isInside = is_point_in_rect(rect, autoCursor.position);
-        interactPointer.isClicked = isInside && !isAutoDigestHeld;
-        interactPointer.isDown = isInside;
-        interactPointer.isReleased = isAutoDigestHeld && !isInside;
-        isAutoDigestHeld = isInside;
-    }
-    else
-    {
-        autoClickCooldown = std::max(0, autoClickCooldown - 1);
-        interactPointer.isClicked = isThere && autoClickCooldown <= 0 && !isAutoDigestHeld;
-        interactPointer.isReleased = isAutoDigestHeld;
-        if (interactPointer.isClicked)
-            autoClickCooldown = AUTO_CLICK_COOLDOWN;
-        isAutoDigestHeld = interactPointer.isClicked;
-    }
-    isAutoItemHeld = false;
 }

src/main.cpp

@@ -3,7 +3,6 @@
 #include "ui.h"
 #include <SDL3/SDL.h>
 #include <SDL3/SDL_main.h>
-#include <utility>
 #include <imgui_impl_opengl3.h>
 #include <imgui_impl_sdl3.h>
 
@@ -29,11 +28,13 @@ enum Screen
     SCREEN_PLAY
 };
 
-// Everything the game holds, from start to exit.
+// Everything the game holds, from start to exit. Long-lived parts keep pointers to the shared ones (the audio,
+// renderer and command list) set here once.
 struct App
 {
     std::vector<Character> characters;
     Audio audio;
+    Commands commands;
     Console console;
     Play play;
     Renderer renderer;
@@ -44,55 +45,54 @@ struct App
     SDL_Window* window = nullptr;
     Uint64 tickPrevious = 0;
     Screen screen = SCREEN_SELECT;
+    bool isCursorHidden = false;
     bool isRunning = true;
 };
 
-static App game;
+static App app;
 
 static int character_get(const std::string& key)
 {
-    for (int i = 0; i < (int)game.characters.size(); i++)
-        if (game.characters[i].key == key)
+    for (int i = 0; i < (int)app.characters.size(); i++)
+        if (app.characters[i].key == key)
             return i;
     return -1;
 }
 
 static void play_exit()
 {
-    if (game.screen != SCREEN_PLAY)
+    if (app.screen != SCREEN_PLAY)
         return;
-    game.play.save();
-    game.settings.lastCharacter.clear();
-    ImGui::GetIO().FontDefault = game.font;
-    style_set(game.settings.color);
-    widget_sounds_set(nullptr, nullptr, nullptr);
-    game.screen = SCREEN_SELECT;
+    app.play.save();
+    app.settings.lastCharacter.clear();
+    ImGui::GetIO().FontDefault = app.font;
+    style_set(app.settings.color);
+    app.screen = SCREEN_SELECT;
 }
 
-static void play_start(int index, Game mode)
+static void play_start(const std::string& key, Game game)
 {
+    int index = character_get(key);
     if (index < 0)
         return;
     play_exit();
-    Character& character = game.characters[index];
-    game.ui.characterIndex = index;
-    game.play.set(character, mode, game.renderer, game.audio);
-    game.settings.lastCharacter = character.key;
-    ImGui::GetIO().FontDefault = character.font ? character.font : game.font;
-    style_set(game.settings.isCharacterColor ? character.color : game.settings.color, character.rounding);
-    widget_sounds_set(&game.audio, &character.sounds[SOUND_HOVER], &character.sounds[SOUND_SELECT]);
-    game.ui.itemActors.clear();
-    game.ui.selectedItem = -1;
-    game.screen = SCREEN_PLAY;
+    Character& character = app.characters[index];
+    app.ui.characterIndex = index;
+    app.play.set(character, game, app.renderer, app.audio);
+    app.settings.lastCharacter = character.key;
+    ImGui::GetIO().FontDefault = character.menu.font ? character.menu.font : app.font;
+    style_set(app.settings.isCharacterColor ? character.color : app.settings.color, character.menu.rounding);
+    app.screen = SCREEN_PLAY;
 }
 
 static void characters_reload()
 {
-    std::string key = game.screen == SCREEN_PLAY ? game.play.character->key : "";
+    std::string key = app.screen == SCREEN_PLAY ? app.play.character->key : "";
     play_exit();
-    game.ui.previewActor = {};
-    game.characters = characters_load(game.renderer);
-    play_start(character_get(key), GAME_CONTINUE);
+    app.ui.previewActor = {};
+    app.ui.catalogCharacter = nullptr;
+    app.characters = characters_load(app.renderer);
+    play_start(key, GAME_CONTINUE);
 }
 
 static void init()
@@ -100,29 +100,29 @@ static void init()
     if (!SDL_Init(SDL_INIT_VIDEO))
     {
         SDL_Log("Failed to initialize SDL: %s", SDL_GetError());
-        game.isRunning = false;
+        app.isRunning = false;
         return;
     }
-    game.settings.load();
+    app.settings.load();
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, GL_MAJOR);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, GL_MINOR);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, GL_PROFILE);
     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
-    game.window = SDL_CreateWindow(GAME_NAME, game.settings.width, game.settings.height,
-                                   SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
-    SDL_SetWindowPosition(game.window, game.settings.x, game.settings.y);
-    game.context = game.window ? SDL_GL_CreateContext(game.window) : nullptr;
-    if (game.context)
-        game.renderer.init();
-    if (!game.renderer.isValid)
+    app.window =
+        SDL_CreateWindow(GAME_NAME, app.settings.width, app.settings.height, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
+    SDL_SetWindowPosition(app.window, app.settings.x, app.settings.y);
+    app.context = app.window ? SDL_GL_CreateContext(app.window) : nullptr;
+    if (app.context)
+        app.renderer.init();
+    if (!app.renderer.isValid)
     {
         SDL_Log("Failed to initialize OpenGL: %s", SDL_GetError());
-        game.isRunning = false;
+        app.isRunning = false;
         return;
     }
     SDL_GL_SetSwapInterval(1);
-    game.audio.init();
-    game.audio.gain_set(game.settings.isMuted ? 0 : game.settings.volume / PERCENT);
+    app.audio.init();
+    app.audio.gain_set(app.settings.isMuted ? 0 : app.settings.volume / PERCENT);
 
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO();
@@ -131,14 +131,19 @@ static void init()
     io.KeyRepeatDelay = KEY_REPEAT_DELAY;
     io.KeyRepeatRate = KEY_REPEAT_RATE;
     ImGui::StyleColorsDark();
-    ImGui_ImplSDL3_InitForOpenGL(game.window, game.context);
+    ImGui_ImplSDL3_InitForOpenGL(app.window, app.context);
     ImGui_ImplOpenGL3_Init(GLSL_VERSION);
-    game.font = io.Fonts->AddFontFromFileTTF(path_get("font/font.ttf").c_str(), FONT_NORMAL);
-    io.FontDefault = game.font;
-    style_set(game.settings.color);
+    app.font = io.Fonts->AddFontFromFileTTF(path_get("font/font.ttf").c_str(), FONT_NORMAL);
+    io.FontDefault = app.font;
+    style_set(app.settings.color);
 
-    game.characters = characters_load(game.renderer);
-    play_start(character_get(game.settings.lastCharacter), GAME_CONTINUE);
+    app.ui.audio = &app.audio;
+    app.ui.renderer = &app.renderer;
+    app.ui.commands = &app.commands;
+    app.console.renderer = &app.renderer;
+    app.console.commands = &app.commands;
+    app.characters = characters_load(app.renderer);
+    play_start(app.settings.lastCharacter, GAME_CONTINUE);
 }
 
 static void events_handle()
@@ -148,94 +153,94 @@ static void events_handle()
     {
         ImGui_ImplSDL3_ProcessEvent(&event);
         if (event.type == SDL_EVENT_QUIT)
-            game.isRunning = false;
+            app.isRunning = false;
         if (event.type != SDL_EVENT_KEY_DOWN || event.key.repeat)
             continue;
         bool isTyping = ImGui::GetIO().WantTextInput;
         bool isAltEnter = event.key.key == SDLK_RETURN && (event.key.mod & SDL_KMOD_ALT);
         if (event.key.key == SDLK_F11 || isAltEnter || (!isTyping && event.key.scancode == SDL_SCANCODE_F))
-            game.ui.isFullscreenToggled = true;
+            app.commands.push_back({"", COMMAND_FULLSCREEN});
         if (!isTyping && event.key.scancode == SDL_SCANCODE_M)
         {
-            game.settings.isMuted = !game.settings.isMuted;
-            game.audio.gain_set(game.settings.isMuted ? 0 : game.settings.volume / PERCENT);
+            app.settings.isMuted = !app.settings.isMuted;
+            app.audio.gain_set(app.settings.isMuted ? 0 : app.settings.volume / PERCENT);
         }
-        if (event.key.scancode == SDL_SCANCODE_GRAVE && game.settings.isConsole)
-            game.console.isOpen = !game.console.isOpen;
+        if (event.key.scancode == SDL_SCANCODE_GRAVE && app.settings.isConsole)
+            app.console.isOpen = !app.console.isOpen;
+    }
+}
+
+// Carries out what the UI, console and shortcuts asked for this tick.
+static void commands_handle()
+{
+    Commands commands = std::move(app.commands);
+    app.commands.clear();
+    for (Command& command : commands)
+    {
+        if (command.type == COMMAND_CONTINUE || command.type == COMMAND_NEW_GAME)
+            play_start(command.character, command.type == COMMAND_NEW_GAME ? GAME_NEW : GAME_CONTINUE);
+        if (command.type == COMMAND_MENU)
+            play_exit();
+        if (command.type == COMMAND_SAVE && app.screen == SCREEN_PLAY)
+            app.play.save();
+        if (command.type == COMMAND_RELOAD)
+            characters_reload();
+        if (command.type == COMMAND_FULLSCREEN)
+            SDL_SetWindowFullscreen(app.window, !(SDL_GetWindowFlags(app.window) & SDL_WINDOW_FULLSCREEN));
     }
 }
 
 static void update()
 {
-    Play& play = game.play;
-    Ui& ui = game.ui;
-    Vec2 screen = {ImGui::GetIO().DisplaySize.x, ImGui::GetIO().DisplaySize.y};
-    if (game.screen == SCREEN_SELECT)
-    {
-        ui.select_update(game.characters, game.settings, game.renderer, game.audio);
-        if (ui.isRefresh)
-            characters_reload();
-        if (ui.isNewGame || ui.isContinue)
-            play_start(ui.characterIndex, ui.isNewGame ? GAME_NEW : GAME_CONTINUE);
-        ui.isNewGame = ui.isContinue = false;
-    }
+    ImVec2 display = ImGui::GetIO().DisplaySize;
+    if (app.screen == SCREEN_SELECT)
+        app.ui.select_update(app.characters, app.settings);
     else
     {
-        ui.play_update(play, game.settings, game.renderer, game.audio);
-        play.update(screen);
-        if (std::exchange(ui.isSave, false))
-            play.save();
-        if (std::exchange(ui.isReturn, false))
-            play_exit();
+        app.ui.play_update(app.play, app.settings);
+        app.play.update({display.x, display.y});
     }
+    app.console.update(app.screen == SCREEN_PLAY ? &app.play : nullptr, app.characters);
+    commands_handle();
 
-    Console& console = game.console;
-    console.update(game.screen == SCREEN_PLAY ? &play : nullptr, game.characters);
-    if (console.action == ACTION_MENU)
-        play_exit();
-    if (console.action == ACTION_CHARACTER || console.action == ACTION_NEW_GAME)
-        play_start(character_get(console.target), console.action == ACTION_NEW_GAME ? GAME_NEW : GAME_CONTINUE);
-    if (console.action == ACTION_RELOAD)
-        characters_reload();
-
-    if (std::exchange(ui.isFullscreenToggled, false))
-        SDL_SetWindowFullscreen(game.window, !(SDL_GetWindowFlags(game.window) & SDL_WINDOW_FULLSCREEN));
-    ui.isFullscreen = SDL_GetWindowFlags(game.window) & SDL_WINDOW_FULLSCREEN;
-    if (!ui.isFullscreen)
+    app.ui.isFullscreen = SDL_GetWindowFlags(app.window) & SDL_WINDOW_FULLSCREEN;
+    if (!app.ui.isFullscreen)
     {
-        SDL_GetWindowSize(game.window, &game.settings.width, &game.settings.height);
-        SDL_GetWindowPosition(game.window, &game.settings.x, &game.settings.y);
+        SDL_GetWindowSize(app.window, &app.settings.width, &app.settings.height);
+        SDL_GetWindowPosition(app.window, &app.settings.x, &app.settings.y);
     }
-    bool isCursorHidden = game.screen == SCREEN_PLAY && play.character->cursor && !console.isOpen;
+    bool isCursorHidden = app.screen == SCREEN_PLAY && app.play.cursor.anm2 && !app.console.isOpen;
+    if (isCursorHidden != app.isCursorHidden)
         isCursorHidden ? SDL_HideCursor() : SDL_ShowCursor();
+    app.isCursorHidden = isCursorHidden;
 }
 
 static void render()
 {
-    Play& play = game.play;
-    Renderer& renderer = game.renderer;
-    bool isPlaying = game.screen == SCREEN_PLAY;
+    Play& play = app.play;
+    Renderer& renderer = app.renderer;
+    bool isPlaying = app.screen == SCREEN_PLAY;
     ImVec2 screen = ImGui::GetIO().DisplaySize;
-    Color background = isPlaying && game.settings.isCharacterColor ? play.character->color : game.settings.color;
+    Color background = isPlaying && app.settings.isCharacterColor ? play.character->color : app.settings.color;
     renderer.canvas_set(nullptr, (int)screen.x, (int)screen.y, background);
     if (isPlaying)
         play.render(renderer, {screen.x, screen.y});
     renderer.flush();
     ImGui::Render();
     ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
-    if (isPlaying && play.character->cursor && !game.console.isOpen)
+    if (app.isCursorHidden)
         play.cursor.render(renderer, {});
     renderer.flush();
-    SDL_GL_SwapWindow(game.window);
+    SDL_GL_SwapWindow(app.window);
 }
 
 // Runs a tick (sixty a second) once its time comes.
 static void loop()
 {
     Uint64 now = SDL_GetTicks();
-    if (now - game.tickPrevious < TICK_MILLISECONDS)
+    if (now - app.tickPrevious < TICK_MILLISECONDS)
         return SDL_Delay(1);
-    game.tickPrevious = now;
+    app.tickPrevious = now;
     events_handle();
     ImGui_ImplOpenGL3_NewFrame();
     ImGui_ImplSDL3_NewFrame();
@@ -247,24 +252,24 @@ static void loop()
 static void quit()
 {
     play_exit();
-    game.settings.save();
+    app.settings.save();
     ImGui_ImplOpenGL3_Shutdown();
     ImGui_ImplSDL3_Shutdown();
     ImGui::DestroyContext();
-    SDL_GL_DestroyContext(game.context);
-    SDL_DestroyWindow(game.window);
+    SDL_GL_DestroyContext(app.context);
+    SDL_DestroyWindow(app.window);
     SDL_Quit();
 }
 
 int main(int, char**)
 {
     init();
-    if (!game.isRunning)
+    if (!app.isRunning)
         return 1;
 #ifdef SDL_PLATFORM_EMSCRIPTEN
     emscripten_set_main_loop(loop, 0, true);
 #else
-    while (game.isRunning)
+    while (app.isRunning)
         loop();
 #endif
     quit();

src/play.cpp

@@ -7,7 +7,10 @@ constexpr Rect WORLD_BOUNDS = {96, 54, 1728, 972};
 constexpr ImGuiKey CHEAT_CODE[] = {ImGuiKey_UpArrow,   ImGuiKey_UpArrow,    ImGuiKey_DownArrow, ImGuiKey_DownArrow,
                                    ImGuiKey_LeftArrow, ImGuiKey_RightArrow, ImGuiKey_LeftArrow, ImGuiKey_RightArrow,
                                    ImGuiKey_B,         ImGuiKey_A};
-constexpr const char* AUTOFEED_TYPE = "Rub";
+constexpr ImGuiKey CHEAT_KEYS[] = {ImGuiKey_UpArrow,    ImGuiKey_DownArrow, ImGuiKey_LeftArrow,
+                                   ImGuiKey_RightArrow, ImGuiKey_B,         ImGuiKey_A};
+constexpr const char* KEY_DISCOVERED = "discovered";
+constexpr const char* KEY_ITEM = "item";
 constexpr float AUTOSAVE_TIME = 30;
 constexpr float CHEAT_TIME = 5;
 constexpr float FOCUS_MENU_WIDTH = 0.3f;
@@ -17,18 +20,14 @@ constexpr float SHAKE_DECAY = 0.97f;
 constexpr float SHAKE_EPSILON = 0.1f;
 constexpr float SHAKE_LERP = 0.72f;
 constexpr float SHAKE_MAGNITUDE = 0.1f;
-constexpr float TALK_STEP = 0.5f;
-constexpr int OVERRIDE_TALK = 0;
-constexpr int OVERRIDE_BLINK = 1;
-constexpr int OVERRIDE_EXPAND = 2;
 
-// Keeps a value within a range given either way round, putting what isn't a number at its low end.
-static float value_clamp(float value, float low, float high)
+struct SavedItem
 {
-    if (low > high)
-        std::swap(low, high);
-    return std::isfinite(value) ? std::clamp(value, low, high) : low;
-}
+    std::string name;
+    Vec2 position;
+    Vec2 velocity;
+    float rotation = 0;
+};
 
 static int zoom_index_get(float zoom)
 {
@@ -39,116 +38,99 @@ static int zoom_index_get(float zoom)
     return index;
 }
 
+// Starts a character, from its save unless it's a new game. A save is the body's stats, the play's own fields (see
+// visit), the items found (one "discovered" line each) and those lying in the world ("item" lines of position,
+// velocity, rotation and name).
 void Play::set(Character& played, Game game, Renderer& renderer, Audio& sound)
 {
     played.load(renderer, sound);
     *this = Play();
     character = &played;
     audio = &sound;
+    camera.zoom = 0;
+
+    std::vector<std::string> found;
+    std::vector<SavedItem> saved;
     if (game == GAME_CONTINUE)
-        progress.load(played.save_path_get());
-    if (!progress.isValid)
-    {
-        progress.weight = played.weight;
-        progress.capacity = played.capacity;
-        progress.digestionRate = played.digestionRate;
-    }
+        is_file_read(played.save_path_get(), [&](const std::string& key, const char* value) {
+            field_line_read(body.stats, key, value);
+            field_line_read(*this, key, value);
+            SavedItem item;
+            int length = 0;
+            if (key == KEY_DISCOVERED)
+                found.emplace_back(value);
+            else if (key == KEY_ITEM && std::sscanf(value, "%f %f %f %f %f %n", &item.position.x, &item.position.y,
+                                                    &item.velocity.x, &item.velocity.y, &item.rotation, &length) == 5)
+                saved.push_back({value + length, item.position, item.velocity, item.rotation});
+        });
+    body.set(played, sound, game);
+    area_set();
 
-    actor = Actor(played.anm2);
-    actor.overrides.resize(OVERRIDE_EXPAND);
-    actor.overrides[OVERRIDE_TALK].id = played.talkDestination;
-    actor.overrides[OVERRIDE_BLINK].id = played.blinkDestination;
-    for (ExpandArea& expandArea : played.expandAreas)
+    Catalog& catalog = played.catalog;
+    items.discovered.assign(catalog.items.size(), false);
+    for (const std::string& name : found)
+        if (int id = catalog.item_get(name); id >= 0)
+            items.discovered[id] = true;
+    for (SavedItem& item : saved)
     {
-        actor.overrides.push_back({.id = expandArea.layer});
-        actor.overrides.push_back({.id = expandArea.null, .target = TARGET_NULL});
+        int id = catalog.item_get(item.name);
+        if (id >= 0)
+            items.add(*this, id, item.position, item.velocity, item.rotation);
+        else
+            SDL_Log("Saved item not found: %s", item.name.c_str());
     }
-    values_clamp();
-    stage = stage_get(progress.weight);
-
-    bool isRolled = game == GAME_NEW && played.alternateTexture && is_chance(played.alternateChance);
-    progress.isAlternate |= isRolled;
-    if (isRolled)
-        audio->play(played.alternateSound);
-    if (progress.isAlternate && played.alternateSheet < (int)actor.sheets.size())
-        actor.sheets[played.alternateSheet] = played.alternateTexture;
 
     cursorType = played.interactTypes.empty() ? -1 : 0;
-    if (played.cursor)
+    if (played.cursor.anm2)
     {
-        cursor = Actor(played.cursor);
-        autoCursor = Actor(played.cursor);
+        cursor = Actor(played.cursor.anm2);
+        autoCursor = Actor(played.cursor.anm2);
         autoCursor.isVisible = false;
     }
-
-    spawnDelay = progress.spawnDelay;
-    discovered.assign(played.items.size(), false);
-    auto item_get = [&](const std::string& name) {
-        for (int i = 0; i < (int)played.items.size(); i++)
-            if (played.items[i].name == name)
-                return i;
-        return -1;
-    };
-    for (const std::string& name : progress.discovered)
-        if (int id = item_get(name); id >= 0)
-            discovered[id] = true;
-    for (SavedItem& saved : progress.items)
-        if (int id = item_get(saved.name); id >= 0)
-            item_add(id, saved.position, saved.velocity, saved.rotation);
-
-    isPostgame = progress.isPostgame || stage >= (int)played.stages.size();
+    isPostgame |= body.stage >= (int)played.stages.size();
 #ifdef DEBUG
     isCheats = true;
 #endif
     isCheats |= isPostgame;
-
-    int areaIndex = played.area_get(stage);
-    if (areaIndex >= 0)
-        area = Actor(played.areas[areaIndex].anm2);
-    bounds = areaIndex >= 0 && is_rect_valid(played.areas[areaIndex].bounds) ? played.areas[areaIndex].bounds
-                                                                             : WORLD_BOUNDS;
-    idle_play();
-    actor.update(*audio);
-    isFocusPending = true;
+    camera.isFocusPending = camera.zoom < ZOOM_LADDER[0];
+    camera.zoom = camera.isFocusPending ? ZOOM_LADDER[0] : ZOOM_LADDER[zoom_index_get(camera.zoom)];
     if (game == GAME_NEW)
-        text.set(*this, played.dialogue.hook_get("Start"), TEXT_UNINTERRUPTIBLE);
+        text.set(*this, played.dialogue.hook_get(HOOK_START), TEXT_UNINTERRUPTIBLE);
 }
 
 void Play::save()
 {
     if (!character)
         return;
-    progress.pan = pan;
-    progress.zoom = zoom;
-    progress.spawnDelay = spawnDelay;
-    progress.isPostgame = isPostgame;
-    progress.items.clear();
-    for (ItemEntity& entity : items)
-        progress.items.push_back(
-            {character->items[entity.id].name, entity.actor.position, entity.velocity, entity.rotation_get()});
-    progress.discovered.clear();
-    for (int i = 0; i < (int)discovered.size(); i++)
-        if (discovered[i])
-            progress.discovered.push_back(character->items[i].name);
-    progress.save(character->save_path_get());
-    toast_add(STRING_ToastSaving);
+    std::string text = fields_write(body.stats) + fields_write(*this);
+    for (int i = 0; i < (int)items.discovered.size(); i++)
+        if (items.discovered[i])
+            text += std::string(KEY_DISCOVERED) + "=" + character->catalog.items[i].name + "\n";
+    for (ItemEntity& entity : items.list)
+        text += std::string(KEY_ITEM) + "=" + field_write(entity.actor.position) + " " + field_write(entity.velocity) +
+                " " + field_write(entity.actor.rotation.value_or(0)) + " " + character->catalog.items[entity.id].name +
+                "\n";
+    file_write(character->save_path_get(), text);
+    toast_add("Saving...");
 }
 
-void Play::toast_add(StringId message)
+// Shows the area of the body's stage, with its bounds.
+void Play::area_set()
 {
-    toasts.push_back({character->strings[message], TOAST_LIFE});
+    int index = character->area_get(body.stage);
+    if (index >= 0 && area.anm2 != character->areas[index].anm2)
+        area = Actor(character->areas[index].anm2);
+    bounds = index >= 0 && is_rect_valid(character->areas[index].bounds) ? character->areas[index].bounds : WORLD_BOUNDS;
 }
 
-void Play::shake_add(float magnitude, int time)
+void Play::toast_add(const std::string& message)
 {
-    shakeTimeMax = std::max(1, time);
-    shakeTime = shakeTimeMax;
-    shake = {random_get(-magnitude, magnitude), random_get(-magnitude, magnitude)};
+    toasts.push_back({message, TOAST_LIFE});
 }
 
-Vec2 Play::world_get(Vec2 screen)
+Actor& Play::pointer_actor_get()
 {
-    return pan + screen / (zoom / PERCENT);
+    return autofeed.isActive ? autoCursor : cursor;
 }
 
 Focus Play::focus_get()
@@ -158,254 +140,209 @@ Focus Play::focus_get()
     return isMenuOpen && isToolsOpen ? FOCUS_BOTH : isMenuOpen ? FOCUS_MENU : isToolsOpen ? FOCUS_TOOLS : FOCUS_CENTER;
 }
 
-// Zooms and pans so the character fills the view, leaving room for the open panels.
 void Play::focus(Vec2 screenSize)
 {
-    Rect rect = actor.bounds_get();
-    if (!is_rect_valid(rect))
+    camera.focus(body.actor.bounds_get(), screenSize, focus_get());
+}
+
+void Play::particles_spawn(const std::vector<std::string>& names, Vec2 position)
+{
+    for (const std::string& name : names)
+    {
+        auto found = character->particles.find(name);
+        if (found == character->particles.end() || !found->second.anm2)
+            SDL_Log("Particle not found: %s", name.c_str());
+        else
+            particles.emplace_back(found->second.anm2, position, found->second.animation);
+    }
+}
+
+// The Konami code unlocks the cheats menu, keyed within a few seconds of each press.
+void Play::cheats_update()
+{
+    if (isCheats)
         return;
-    rect = rect_center(rect, FOCUS_PADDING);
-    float factor = std::min(screenSize.x / rect.w, screenSize.y / rect.h);
+    for (ImGuiKey key : CHEAT_KEYS)
+    {
+        if (!ImGui::IsKeyPressed(key, false))
+            continue;
+        cheatIndex = key == CHEAT_CODE[cheatIndex] ? cheatIndex + 1 : key == CHEAT_CODE[0] ? 1 : 0;
+        cheatTime = (float)ImGui::GetTime();
+        if (cheatIndex < (int)std::size(CHEAT_CODE))
+            continue;
+        isCheats = true;
+        cheatIndex = 0;
+        toast_add("Cheats unlocked!");
+        audio->play(character->sounds[SOUND_CHEATS]);
+    }
+    if (cheatIndex > 0 && ImGui::GetTime() - cheatTime > CHEAT_TIME)
+        cheatIndex = 0;
+}
+
+// Answers what the body did this tick: dialogue for digesting and stage ups, and the ending at the final stage.
+void Play::events_handle(Vec2 screenSize)
+{
+    Dialogue& dialogue = character->dialogue;
+    for (Event event : events)
+    {
+        if (event == EVENT_DIGESTED && !text.isScene && text.is_interruptible())
+            text.set(*this, dialogue.hook_get(HOOK_DIGEST));
+        if (event == EVENT_STAGE_UP && !text.isScene)
+            text.set(*this, dialogue.hook_get(HOOK_STAGE_UP));
+        if (event != EVENT_STAGE_FINAL || isPostgame || isPostgamePending)
+            continue;
+        isPostgame = isCheats = !dialogue.is_hook(HOOK_END);
+        if (isPostgame)
+            continue;
+        text.set(*this, dialogue.hook_get(HOOK_END), TEXT_UNINTERRUPTIBLE);
+        isMenuOpen = isToolsOpen = false;
+        body.stats.calories = 0;
+        body.stats.digestionProgress = 0;
+        items.drop();
+        isPostgamePending = true;
+        focus(screenSize);
+    }
+    events.clear();
+}
+
+void Play::update(Vec2 screenSize)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    if (std::exchange(camera.isFocusPending, false))
+        focus(screenSize);
+    body.stats.playtime += TICK;
+    cheats_update();
+    text.update(*this);
+    if (isPostgamePending && (!text.entry || (text.entry->isTerminal && text.isFinished)) && !text.isScene)
+    {
+        isMenuOpen = isPostgame = isCheats = true;
+        isPostgamePending = false;
+        focus(screenSize);
+    }
+
+    if (autofeed.isEnabled)
+        cursorType = autofeed.type_get(*this);
+    Pointer pointer;
+    pointer.position = camera.world_get({io.MousePos.x, io.MousePos.y});
+    pointer.type = cursorType;
+    pointer.isCaptured = io.WantCaptureMouse;
+    pointer.isClicked = ImGui::IsMouseClicked(ImGuiMouseButton_Left);
+    pointer.isDown = ImGui::IsMouseDown(ImGuiMouseButton_Left);
+    pointer.isReleased = ImGui::IsMouseReleased(ImGuiMouseButton_Left);
+    pointer.isRightClicked = ImGui::IsMouseClicked(ImGuiMouseButton_Right);
+    Pointer itemPointer = pointer;
+    Pointer interactPointer = pointer;
+    autofeed.isActive = false;
+    if (text.isScene)
+        itemPointer = interactPointer = {.position = pointer.position, .isCaptured = true};
+    else
+        autofeed.update(*this, itemPointer, interactPointer);
+    items.update(*this, itemPointer);
+    interactions.update(*this, interactPointer);
+
+    if (cursor.anm2 && !autofeed.isActive && pointer.isClicked && !items.isHovered && !interactions.isHovering &&
+        cursorState == CURSOR_DEFAULT)
+        cursor.play(character->cursor.click, TRANSITION_FORCE, INTERRUPT_ALWAYS);
+
+    body.update(events);
+    events_handle(screenSize);
+    area_set();
+    area.update(*audio);
+
+    for (int i = 0; i < (int)particles.size(); i++)
+    {
+        particles[i].update(*audio);
+        if (!particles[i].isPlaying)
+            particles.erase(particles.begin() + i--);
+    }
+    for (Actor* each : {&cursor, &autoCursor})
+    {
+        bool isActive = (each == &autoCursor) == autofeed.isActive;
+        if ((!isActive || cursorState == CURSOR_DEFAULT) && !each->pending)
+            each->play(character->cursor.idle, TRANSITION_IF_IDLE);
+        each->update(*audio);
+    }
+    cursorState = CURSOR_DEFAULT;
+    cursor.position = {io.MousePos.x, io.MousePos.y};
+    camera.update(*this, screenSize);
+
+    for (int i = 0; i < (int)toasts.size(); i++)
+        if (--toasts[i].life <= 0)
+            toasts.erase(toasts.begin() + i--);
+    if ((autosaveTime += TICK) > AUTOSAVE_TIME)
+    {
+        save();
+        autosaveTime = 0;
+    }
+}
+
+void Play::render(Renderer& renderer, Vec2 screenSize)
+{
+    Affine view = camera.view_get(screenSize);
+    area.render(renderer, view);
+    body.actor.render(renderer, view);
+    if (!text.isScene)
+        for (ItemEntity& entity : items.list)
+            entity.actor.render(renderer, view);
+    if (autofeed.isActive)
+        autoCursor.render(renderer, view);
+    for (Actor& particle : particles)
+        particle.render(renderer, view);
+}
+
+Vec2 Camera::world_get(Vec2 screen)
+{
+    return pan + screen / (zoom / PERCENT);
+}
+
+Affine Camera::view_get(Vec2 screenSize)
+{
+    float scale = zoom / PERCENT;
+    return {scale, 0, 0, scale, -pan.x * scale + shake.x * screenSize.x, -pan.y * scale + shake.y * screenSize.y};
+}
+
+void Camera::shake_add(float magnitude, int time)
+{
+    shakeTimeMax = std::max(1, time);
+    shakeTime = shakeTimeMax;
+    shake = {random_get(-magnitude, magnitude), random_get(-magnitude, magnitude)};
+}
+
+// Zooms and pans so a target fills the view, leaving room for the open panels.
+void Camera::focus(Rect target, Vec2 screenSize, Focus panels)
+{
+    if (!is_rect_valid(target))
+        return;
+    target = rect_center(target, FOCUS_PADDING);
+    float factor = std::min(screenSize.x / target.w, screenSize.y / target.h);
     zoom = ZOOM_LADDER[zoom_index_get(std::clamp(factor * PERCENT, ZOOM_LADDER[0], std::end(ZOOM_LADDER)[-1]))];
     factor = zoom / PERCENT;
-    pan = rect_middle(rect) - screenSize / factor / 2;
-    Focus panels = focus_get();
+    pan = rect_middle(target) - screenSize / factor / 2;
     if (panels == FOCUS_MENU || panels == FOCUS_BOTH)
         pan.x += screenSize.x * FOCUS_MENU_WIDTH / factor / 2;
     if (panels == FOCUS_TOOLS || panels == FOCUS_BOTH)
         pan.x -= screenSize.x * FOCUS_TOOLS_WIDTH / factor / 2;
 }
 
-float Play::capacity_max_get()
-{
-    return progress.capacity * character->overstuffedMultiplier;
-}
-
-float Play::capacity_percent_get()
-{
-    float capacityMax = capacity_max_get();
-    return capacityMax > 0 ? progress.calories / capacityMax : 0;
-}
-
-bool Play::is_over_capacity()
-{
-    return progress.calories > progress.capacity;
-}
-
-int Play::stage_get(float weight)
-{
-    std::vector<Stage>& stages = character->stages;
-    if (stages.empty() || weight <= character->weight)
-        return 0;
-    for (int i = 0; i < (int)stages.size(); i++)
-        if (weight < stages[i].weight)
-            return i;
-    return (int)stages.size();
-}
-
-float Play::stage_threshold_get(int index)
-{
-    std::vector<Stage>& stages = character->stages;
-    if (index <= 0 || stages.empty())
-        return character->weight;
-    return stages[std::min(index, (int)stages.size()) - 1].weight;
-}
-
-float Play::stage_progress_get()
-{
-    float low = stage_threshold_get(stage);
-    float high = stage_threshold_get(stage + 1);
-    if (stage >= (int)character->stages.size() || high <= low)
-        return 1;
-    return (progress.weight - low) / (high - low);
-}
-
-std::string Play::suffix_get()
-{
-    return stage > 0 && stage <= (int)character->stages.size() ? character->stages[stage - 1].animationSuffix : "";
-}
-
-std::string Play::idle_get()
-{
-    if (isStageUp)
-        return "";
-    if (!idleOverride.empty())
-        return idleOverride;
-    return is_over_capacity() && !character->animationIdleFull.empty() ? character->animationIdleFull
-                                                                      : character->animationIdle;
-}
-
-// Plays one of the character's animations, as its current stage draws it.
-void Play::body_play(const std::string& animation, Transition transition, Interrupt interrupt)
-{
-    if (!animation.empty())
-        actor.play(animation + suffix_get(), transition, interrupt);
-}
-
-void Play::idle_play()
-{
-    body_play(idle_get());
-}
-
-void Play::idle_override_set(const std::string& animation)
-{
-    if (!animation.empty())
-        idleOverride = animation == character->animationIdle ? "" : animation;
-}
-
-void Play::values_clamp()
-{
-    Character& data = *character;
-    progress.weight = value_clamp(progress.weight, data.weight, data.weightMax);
-    progress.capacity = value_clamp(progress.capacity, data.capacityMin, data.capacityMax);
-    progress.digestionRate = value_clamp(progress.digestionRate, data.digestionRateMin, data.digestionRateMax);
-    progress.calories = value_clamp(progress.calories, 0, std::max(0.0f, capacity_max_get()));
-    progress.digestionProgress = value_clamp(progress.digestionProgress, 0, DIGESTION_MAX);
-    progress.digestionTimer = std::clamp(progress.digestionTimer, 0, std::max(0, data.digestionTime));
-    progress.totalCalories = std::max(0.0f, progress.totalCalories);
-    progress.playtime = std::max(0.0f, progress.playtime);
-}
-
-// Swaps a layer's region for the one a source layer shows at a time, while active. Turns itself off (and returns
-// false) when the animation lacks the source or the time runs past it.
-static bool is_region_swapped(Actor& actor, int source, float& time, Override& swap, bool isActive)
-{
-    Anm2Animation* animation = actor.animation_get();
-    swap.isRegion = false;
-    if (!isActive || !animation)
-        return false;
-    for (Anm2Item& layer : animation->layers)
-    {
-        if (layer.id != source || layer.frames.empty())
-            continue;
-        Anm2Frame frame = actor.frame_get(layer.frames, time, TARGET_LAYER, source);
-        swap = {.crop = frame.crop, .pivot = frame.pivot, .size = frame.size, .id = swap.id, .isRegion = true};
-        time += TALK_STEP;
-        return true;
-    }
-    time = 0;
-    return false;
-}
-
-static int source_length_get(Actor& actor, int source)
-{
-    Anm2Animation* animation = actor.animation_get();
-    if (!animation)
-        return -1;
-    for (Anm2Item& layer : animation->layers)
-        if (layer.id == source)
-            return track_length_get(layer.frames);
-    return -1;
-}
-
-void Play::body_update()
-{
-    Character& data = *character;
-    values_clamp();
-    isJustStageUp = false;
-    isJustStageFinal = false;
-    isJustDigested = false;
-    if (!actor.isPlaying)
-    {
-        if (isStageUp)
-        {
-            (stage >= (int)data.stages.size() ? isJustStageFinal : isJustStageUp) = true;
-            isStageUp = false;
-            actor.isLocked = false;
-        }
-        if (!isTalking)
-            idle_play();
-    }
-    actor.update(*audio);
-
-    if (progress.isDigesting && --progress.digestionTimer <= 0)
-    {
-        float nextWeight = value_clamp(progress.weight + progress.calories * data.caloriesToKilogram, data.weight,
-                                       data.weightMax);
-        if (is_over_capacity())
-        {
-            float over = progress.calories - progress.capacity;
-            float overPercent = over / (capacity_max_get() - progress.capacity);
-            progress.capacity = value_clamp(progress.capacity + overPercent * data.overstuffedDigestBonus * over,
-                                            data.capacityMin, data.capacityMax);
-        }
-        progress.calories = 0;
-        if (int nextStage = stage_get(nextWeight); nextStage > stage_get(progress.weight))
-        {
-            actor.interrupt = INTERRUPT_IF_ALLOWED;
-            body_play(data.animationStageUp, TRANSITION_NORMAL, INTERRUPT_NEVER);
-            stage = nextStage;
-            isStageUp = true;
-            actor.isLocked = true;
-        }
-        else
-            isJustDigested = true;
-        progress.weight = nextWeight;
-        progress.isDigesting = false;
-        progress.digestionTimer = data.digestionTime;
-        progress.digestionProgress = 0;
-    }
-    else if (!progress.isDigesting)
-    {
-        if (progress.calories > 0)
-            progress.digestionProgress += progress.digestionRate;
-        if (progress.digestionProgress >= DIGESTION_MAX)
-        {
-            progress.isDigesting = true;
-            progress.digestionTimer = data.digestionTime;
-            audio->play(data.sounds[SOUND_DIGEST]);
-        }
-    }
-    values_clamp();
-    if (is_chance(data.gurgleChance * capacity_percent_get() * data.gurgleCapacityMultiplier * PERCENT))
-        audio->play(data.sounds[SOUND_GURGLE]);
-    stage = stage_get(progress.weight);
-
-    float stageProgress = stage_progress_get();
-    float capacityProgress = capacity_percent_get();
-    if (progress.isDigesting)
-        capacityProgress *= (float)progress.digestionTimer / std::max(1, data.digestionTime);
-    for (int i = 0; i < (int)data.expandAreas.size(); i++)
-    {
-        float scaleMax = data.expandAreas[i].scaleMax;
-        float add = std::clamp((stageProgress + capacityProgress) * scaleMax / 2, 0.0f, scaleMax);
-        actor.overrides[OVERRIDE_EXPAND + i * 2].scale = {add, add};
-        actor.overrides[OVERRIDE_EXPAND + i * 2 + 1].scale = {add, add};
-    }
-
-    isTalking = is_region_swapped(actor, data.talkSource, talkTime, actor.overrides[OVERRIDE_TALK], isTalking);
-    if (talkTime > source_length_get(actor, data.talkSource))
-        talkTime = 0;
-    int blinkLength = source_length_get(actor, data.blinkSource);
-    if (blinkLength != 1)
-    {
-        isBlinking |= is_chance(data.blinkChance);
-        isBlinking = is_region_swapped(actor, data.blinkSource, blinkTime, actor.overrides[OVERRIDE_BLINK], isBlinking);
-        if (blinkTime >= blinkLength)
-        {
-            isBlinking = false;
-            blinkTime = 0;
-            actor.overrides[OVERRIDE_BLINK].isRegion = false;
-        }
-    }
-}
-
-void Play::camera_update(Vec2 screenSize)
+// Pans with the middle mouse (or control and the left), zooms through the ladder with the wheel toward the mouse, and
+// settles the screen shake.
+void Camera::update(Play& play, Vec2 screenSize)
 {
     ImGuiIO& io = ImGui::GetIO();
+    Cursor& cursor = play.character->cursor;
     if (!ImGui::IsWindowHovered(ImGuiHoveredFlags_AnyWindow) && !ImGui::IsAnyItemActive())
     {
         if (ImGui::IsMouseDown(ImGuiMouseButton_Middle) ||
             (ImGui::IsMouseDown(ImGuiMouseButton_Left) && ImGui::IsKeyDown(ImGuiMod_Ctrl)))
         {
-            cursor.play(character->cursorPan);
+            play.cursor.play(cursor.pan);
             pan = pan - Vec2{io.MouseDelta.x, io.MouseDelta.y} / (zoom / PERCENT);
         }
         if (io.MouseWheel != 0)
         {
             Vec2 mouse = {io.MousePos.x, io.MousePos.y};
             Vec2 world = world_get(mouse);
-            cursor.play(character->cursorZoom);
+            play.cursor.play(cursor.zoom);
             int index = std::clamp(zoom_index_get(zoom) + (io.MouseWheel > 0 ? 1 : -1), 0,
                                    (int)std::size(ZOOM_LADDER) - 1);
             zoom = ZOOM_LADDER[index];
@@ -413,7 +350,7 @@ void Play::camera_update(Vec2 screenSize)
         }
     }
     if (ImGui::IsKeyPressed(ImGuiKey_Home))
-        focus(screenSize);
+        play.focus(screenSize);
 
     if (shakeTime > 0)
     {
@@ -430,152 +367,3 @@ void Play::camera_update(Vec2 screenSize)
             shake = {};
     }
 }
-
-// The Konami code unlocks the cheats menu, keyed within a few seconds of each press.
-void Play::cheats_update()
-{
-    if (isCheats)
-        return;
-    for (ImGuiKey key : {ImGuiKey_UpArrow, ImGuiKey_DownArrow, ImGuiKey_LeftArrow, ImGuiKey_RightArrow, ImGuiKey_B,
-                         ImGuiKey_A})
-    {
-        if (!ImGui::IsKeyPressed(key, false))
-            continue;
-        cheatIndex = key == CHEAT_CODE[cheatIndex] ? cheatIndex + 1 : key == CHEAT_CODE[0] ? 1 : 0;
-        cheatTime = (float)ImGui::GetTime();
-        if (cheatIndex < (int)std::size(CHEAT_CODE))
-            continue;
-        isCheats = true;
-        cheatIndex = 0;
-        toast_add(STRING_ToastCheatsUnlocked);
-        audio->play(character->sounds[SOUND_CHEATS]);
-    }
-    if (cheatIndex > 0 && ImGui::GetTime() - cheatTime > CHEAT_TIME)
-        cheatIndex = 0;
-}
-
-void Play::particles_spawn(const std::vector<std::string>& names, Vec2 position)
-{
-    for (const std::string& name : names)
-    {
-        auto found = character->particles.find(name);
-        if (found == character->particles.end() || !found->second.anm2)
-            SDL_Log("Particle not found: %s", name.c_str());
-        else
-            particles.emplace_back(found->second.anm2, position, found->second.animation);
-    }
-}
-
-void Play::update(Vec2 screenSize)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    if (std::exchange(isFocusPending, false))
-    {
-        focus(screenSize);
-        pan = progress.zoom >= ZOOM_LADDER[0] ? progress.pan : pan;
-        zoom = progress.zoom >= ZOOM_LADDER[0] ? ZOOM_LADDER[zoom_index_get(progress.zoom)] : zoom;
-    }
-    progress.playtime += io.DeltaTime;
-    cheats_update();
-    text.update(*this, screenSize);
-
-    if (isJustStageFinal && !isPostgame && !isPostgamePending)
-    {
-        Entry* end = character->dialogue.hook_get("End");
-        isPostgame = isCheats = !end;
-        if (end)
-        {
-            text.set(*this, end, TEXT_UNINTERRUPTIBLE);
-            isMenuOpen = isToolsOpen = false;
-            progress.calories = 0;
-            progress.digestionProgress = 0;
-            item_drop();
-            isPostgamePending = true;
-            focus(screenSize);
-        }
-    }
-    if (isPostgamePending && (!text.entry || (text.entry->isTerminal && text.isFinished)) && !text.isScene)
-    {
-        isMenuOpen = isPostgame = isCheats = true;
-        isPostgamePending = false;
-        focus(screenSize);
-    }
-
-    if (isAutofeed)
-        for (int i = 0; i < (int)character->interactTypes.size(); i++)
-            if (character->interactTypes[i].name == AUTOFEED_TYPE)
-                cursorType = i;
-    Pointer pointer;
-    pointer.position = world_get({io.MousePos.x, io.MousePos.y});
-    pointer.type = cursorType;
-    pointer.isCaptured = io.WantCaptureMouse;
-    pointer.isClicked = ImGui::IsMouseClicked(ImGuiMouseButton_Left);
-    pointer.isDown = ImGui::IsMouseDown(ImGuiMouseButton_Left);
-    pointer.isReleased = ImGui::IsMouseReleased(ImGuiMouseButton_Left);
-    pointer.isRightClicked = ImGui::IsMouseClicked(ImGuiMouseButton_Right);
-    Pointer itemPointer = pointer;
-    Pointer interactPointer = pointer;
-    if (text.isScene)
-    {
-        itemPointer = interactPointer = {.position = pointer.position, .isCaptured = true};
-        isAutofeedActive = false;
-    }
-    else
-        autofeed_update(itemPointer, interactPointer);
-    items_update(itemPointer);
-    interact_update(interactPointer);
-
-    if (character->cursor && !isAutofeedActive && pointer.isClicked && !isItemHovered && !isHovering &&
-        cursorState == CURSOR_DEFAULT)
-        cursor.play(character->cursorClick, TRANSITION_FORCE, INTERRUPT_ALWAYS);
-
-    body_update();
-    int areaIndex = character->area_get(stage);
-    if (areaIndex >= 0 && area.anm2 != character->areas[areaIndex].anm2)
-        area = Actor(character->areas[areaIndex].anm2);
-    if (areaIndex >= 0 && is_rect_valid(character->areas[areaIndex].bounds))
-        bounds = character->areas[areaIndex].bounds;
-    area.update(*audio);
-
-    for (int i = 0; i < (int)particles.size(); i++)
-    {
-        particles[i].update(*audio);
-        if (!particles[i].isPlaying)
-            particles.erase(particles.begin() + i--);
-    }
-    for (Actor* each : {&cursor, &autoCursor})
-    {
-        bool isActive = (each == &autoCursor) == isAutofeedActive;
-        if ((!isActive || cursorState == CURSOR_DEFAULT) && !each->pending)
-            each->play(character->cursorIdle, TRANSITION_IF_IDLE);
-        each->update(*audio);
-    }
-    cursorState = CURSOR_DEFAULT;
-    cursor.position = {io.MousePos.x, io.MousePos.y};
-    cursor.isVisible = true;
-    camera_update(screenSize);
-
-    for (int i = 0; i < (int)toasts.size(); i++)
-        if (--toasts[i].life <= 0)
-            toasts.erase(toasts.begin() + i--);
-    if ((autosaveTime += io.DeltaTime) > AUTOSAVE_TIME)
-    {
-        save();
-        autosaveTime = 0;
-    }
-}
-
-void Play::render(Renderer& renderer, Vec2 screenSize)
-{
-    float scale = zoom / PERCENT;
-    Affine view = {scale, 0, 0, scale, -pan.x * scale + shake.x * screenSize.x, -pan.y * scale + shake.y * screenSize.y};
-    area.render(renderer, view);
-    actor.render(renderer, view);
-    if (!text.isScene)
-        for (ItemEntity& entity : items)
-            entity.actor.render(renderer, view);
-    if (isAutofeedActive)
-        autoCursor.render(renderer, view);
-    for (Actor& particle : particles)
-        particle.render(renderer, view);
-}

src/play.h

@@ -5,6 +5,7 @@
 #include "save.h"
 
 constexpr float DIGESTION_MAX = 100;
+constexpr float TICK = 1 / TICK_RATE;
 constexpr int TOAST_LIFE = 180;
 constexpr float ZOOM_LADDER[] = {100, 115, 130, 150, 175, 200, 235, 275, 325, 400};
 
@@ -14,12 +15,6 @@ enum Game
     GAME_CONTINUE
 };
 
-enum Hold
-{
-    HOLD_RELEASE,
-    HOLD_KEEP
-};
-
 enum CursorState
 {
     CURSOR_DEFAULT,
@@ -36,18 +31,32 @@ enum Focus
     FOCUS_BOTH
 };
 
+enum Hold
+{
+    HOLD_RELEASE,
+    HOLD_KEEP
+};
+
+// What happened to the body in a tick, answered once it's done.
+enum Event
+{
+    EVENT_DIGESTED,
+    EVENT_STAGE_UP,
+    EVENT_STAGE_FINAL
+};
+
 // The mouse as items and interact areas see it this tick: the player's, or the autofeed's stand-in.
 struct Pointer
 {
     Vec2 position;
     int target = -1;
     int type = -1;
+    bool isAutomated = false;
     bool isCaptured = false;
     bool isClicked = false;
     bool isDown = false;
     bool isReleased = false;
     bool isRightClicked = false;
-    bool isAutomated = false;
 };
 
 struct ItemEntity
@@ -56,11 +65,6 @@ struct ItemEntity
     Vec2 velocity;
     float angularVelocity = 0;
     int id = 0;
-
-    float& rotation_get()
-    {
-        return actor.overrides[0].rotation;
-    }
 };
 
 struct Toast
@@ -69,120 +73,181 @@ struct Toast
     int life = 0;
 };
 
-class Renderer;
-class Audio;
-struct Settings;
+class Play;
 
-// A character being played: its body (weight, digestion, stages), the items in the world, what the cursor does to
-// both, the autofeed, the camera and the effects.
+// The character's body: its stats, digestion and stages, and the animations they choose.
+class Body
+{
+public:
+    Stats stats;
+    Actor actor;
+    std::string idleOverride;
+    std::string suffix;
+    Character* character = nullptr;
+    Audio* audio = nullptr;
+    float blinkTime = 0;
+    float talkTime = 0;
+    int stage = 0;
+    bool isBlinking = false;
+    bool isStageUp = false;
+    bool isTalking = false;
+
+    void set(Character& played, Audio& sound, Game game);
+    void update(std::vector<Event>& events);
+    void play(const std::string& animation, Transition transition = TRANSITION_NORMAL,
+              Interrupt interrupt = INTERRUPT_IF_ALLOWED);
+    void idle_play();
+    void idle_override_set(const std::string& animation);
+    void stage_set(int index);
+    void values_clamp();
+    std::string idle_get();
+    Rect eat_rect_get(const EatArea& eatArea);
+    float capacity_max_get();
+    float capacity_percent_get();
+    float stage_progress_get();
+    float stage_threshold_get(int index);
+    int stage_get(float weight);
+    bool is_over_capacity();
+};
+
+// Food being carried to an eat area, until the area's event fires.
+struct Feeding
+{
+    Rect rect = {NAN, NAN, NAN, NAN};
+    int animation = -1;
+    int event = -1;
+    int item = -1;
+    bool isTextFull = false;
+    bool isTextPending = false;
+};
+
+// The items in the world: spawning them, their physics, and carrying them to be eaten or used.
+class Items
+{
+public:
+    std::vector<ItemEntity> list;
+    std::vector<int> spawnQueue;
+    std::vector<bool> discovered;
+    Feeding feeding;
+    Vec2 pointerPrevious;
+    int held = -1;
+    int spawnDelay = 0;
+    int tooltip = -1;
+    bool isHovered = false;
+    bool isJustHeld = false;
+
+    void update(Play& play, Pointer pointer);
+    void add(Play& play, int id, Vec2 position, Vec2 velocity = {}, float rotation = 0);
+    void drop(Hold hold = HOLD_RELEASE);
+    void spawn_queue_add(Play& play, int id);
+    void spawn_queue_add(Play& play);
+    int spawn_delay_get(Play& play);
+    bool is_spawn_possible(Play& play);
+};
+
+// The cursor on the character's interact areas: rubbing, smacking and the like.
+class Interactions
+{
+public:
+    std::vector<int> cooldowns;
+    Vec2 pointerPrevious;
+    int area = -1;
+    bool isHolding = false;
+    bool isHovering = false;
+    bool isInteracting = false;
+
+    void update(Play& play, Pointer pointer);
+};
+
+// Plays for the player: spawns food, carries it to the mouth, and rubs or pats the belly along when nothing fits.
+class Autofeed
+{
+public:
+    Vec2 velocity;
+    float angle = 0;
+    int clickCooldown = 0;
+    int target = -1;
+    bool isActive = false;
+    bool isDigestHeld = false;
+    bool isEnabled = false;
+    bool isItemHeld = false;
+
+    void update(Play& play, Pointer& itemPointer, Pointer& interactPointer);
+    int type_get(Play& play);
+    bool is_available(Play& play);
+
+private:
+    void reset();
+};
+
+class Camera
+{
+public:
+    Vec2 pan;
+    Vec2 shake;
+    float zoom = ZOOM_LADDER[0];
+    int shakeTime = 0;
+    int shakeTimeMax = 0;
+    bool isFocusPending = false;
+
+    void update(Play& play, Vec2 screenSize);
+    void focus(Rect target, Vec2 screenSize, Focus panels);
+    void shake_add(float magnitude, int time);
+    Vec2 world_get(Vec2 screen);
+    Affine view_get(Vec2 screenSize);
+};
+
+// A character being played, sequencing its parts each tick: the body, items, interactions, autofeed, camera and
+// dialogue.
 class Play
 {
 public:
     Character* character = nullptr;
     Audio* audio = nullptr;
-    Progress progress;
+    Autofeed autofeed;
+    Body body;
+    Camera camera;
+    Interactions interactions;
+    Items items;
     Text text;
-    Actor actor;
     Actor area;
     Actor autoCursor;
     Actor cursor;
-    std::string idleOverride;
     std::vector<Actor> particles;
-    std::vector<ItemEntity> items;
+    std::vector<Event> events;
     std::vector<Toast> toasts;
-    std::vector<int> dialogueCooldowns;
-    std::vector<int> spawnQueue;
-    std::vector<bool> discovered;
     Rect bounds;
-    Vec2 autoVelocity;
-    Vec2 itemPointerPrevious;
-    Vec2 pan;
-    Vec2 pointerPrevious;
-    Vec2 shake;
-    float autoAngle = 0;
     float autosaveTime = 0;
-    float blinkTime = 0;
     float cheatTime = 0;
-    float talkTime = 0;
-    float zoom = ZOOM_LADDER[0];
-    int autoClickCooldown = 0;
-    int autoTarget = -1;
     int cheatIndex = 0;
     int cursorType = -1;
-    int heldItem = -1;
-    int interactArea = -1;
-    int eatAnimation = -1;
-    int eatEvent = -1;
-    int eatItem = -1;
-    int shakeTime = 0;
-    int shakeTimeMax = 0;
-    int spawnDelay = 0;
-    int stage = 0;
-    int tooltipItem = -1;
     CursorState cursorState = CURSOR_DEFAULT;
-    Rect eatRect = {NAN, NAN, NAN, NAN};
-    bool isAutofeed = false;
-    bool isAutofeedActive = false;
-    bool isAutoDigestHeld = false;
-    bool isAutoItemHeld = false;
-    bool isBlinking = false;
     bool isCheats = false;
-    bool isEatTextFull = false;
-    bool isEatTextPending = false;
-    bool isFocusPending = false;
-    bool isHoldInteracting = false;
-    bool isHovering = false;
-    bool isInteracting = false;
-    bool isItemHovered = false;
-    bool isJustItemHeld = false;
-    bool isJustDigested = false;
-    bool isJustStageFinal = false;
-    bool isJustStageUp = false;
     bool isMenuOpen = true;
     bool isPostgame = false;
     bool isPostgamePending = false;
-    bool isStageUp = false;
-    bool isTalking = false;
     bool isToolsOpen = false;
 
     void set(Character& played, Game game, Renderer& renderer, Audio& sound);
     void save();
     void update(Vec2 screenSize);
     void render(Renderer& renderer, Vec2 screenSize);
-    void toast_add(StringId message);
-    void shake_add(float magnitude, int time);
     void focus(Vec2 screenSize);
-    Vec2 world_get(Vec2 screen);
+    void toast_add(const std::string& message);
+    void particles_spawn(const std::vector<std::string>& names, Vec2 position);
+    Actor& pointer_actor_get();
     Focus focus_get();
 
-    float capacity_max_get();
-    float capacity_percent_get();
-    bool is_over_capacity();
-    int stage_get(float weight);
-    float stage_progress_get();
-    float stage_threshold_get(int index);
-    std::string idle_get();
-    std::string suffix_get();
-    void body_play(const std::string& animation, Transition transition = TRANSITION_NORMAL,
-                   Interrupt interrupt = INTERRUPT_IF_ALLOWED);
-    void idle_play();
-    void idle_override_set(const std::string& animation);
-    void values_clamp();
-
-    void item_add(int id, Vec2 position, Vec2 velocity = {}, float rotation = 0);
-    int spawn_delay_get();
-    bool is_spawn_possible();
-    void spawn_queue_add(int id);
-    void spawn_queue_add();
-    void particles_spawn(const std::vector<std::string>& names, Vec2 position);
-    Rect eat_rect_get(const EatArea& eatArea);
+    template <class Visitor> void visit(Visitor&& visitor)
+    {
+        visitor("pan", camera.pan);
+        visitor("postgame", isPostgame);
+        visitor("spawn_delay", items.spawnDelay);
+        visitor("zoom", camera.zoom);
+    }
 
 private:
-    void body_update();
-    void camera_update(Vec2 screenSize);
+    void area_set();
     void cheats_update();
-    void interact_update(Pointer pointer);
-    void items_update(Pointer pointer);
-    void autofeed_update(Pointer& itemPointer, Pointer& interactPointer);
-    void item_drop(Hold hold = HOLD_RELEASE);
+    void events_handle(Vec2 screenSize);
 };

src/renderer.h

@@ -35,6 +35,8 @@ class Renderer
 {
 public:
     Texture white;
+    bool isShowLayers = false;
+    bool isShowNulls = false;
     bool isValid = false;
 
     void init();

src/save.cpp

@@ -1,96 +1,13 @@
 #include "save.h"
 #include <SDL3/SDL.h>
-#include <cstdio>
-#include <type_traits>
 
 #ifdef SDL_PLATFORM_EMSCRIPTEN
 #include <emscripten.h>
 #endif
 
-constexpr const char* KEY_DISCOVERED = "discovered";
-constexpr const char* KEY_ITEM = "item";
 constexpr const char* SETTINGS_FILE = "settings.txt";
 
-static void value_read(const char* text, float& value)
-{
-    value = (float)SDL_atof(text);
-}
-
-static void value_read(const char* text, int& value)
-{
-    value = SDL_atoi(text);
-}
-
-static void value_read(const char* text, bool& value)
-{
-    value = SDL_atoi(text);
-}
-
-static void value_read(const char* text, Measurement& value)
-{
-    value = (Measurement)SDL_atoi(text);
-}
-
-static void value_read(const char* text, std::string& value)
-{
-    value = text;
-}
-
-static void value_read(const char* text, Vec2& value)
-{
-    SDL_sscanf(text, "%f %f", &value.x, &value.y);
-}
-
-static void value_read(const char* text, Color& value)
-{
-    SDL_sscanf(text, "%f %f %f", &value.r, &value.g, &value.b);
-}
-
-static std::string value_write(float value)
-{
-    return std::to_string(value);
-}
-
-static std::string value_write(int value)
-{
-    return std::to_string(value);
-}
-
-static std::string value_write(const std::string& value)
-{
-    return value;
-}
-
-static std::string value_write(Vec2 value)
-{
-    return value_write(value.x) + " " + value_write(value.y);
-}
-
-static std::string value_write(Color value)
-{
-    return value_write(value.r) + " " + value_write(value.g) + " " + value_write(value.b);
-}
-
-// Calls line with each key and value of a key=value text file. Returns whether it was there.
-template <class Line> static bool lines_read(const std::string& path, Line&& line)
-{
-    char* text = (char*)SDL_LoadFile(path.c_str(), nullptr);
-    if (!text)
-        return false;
-    char* rest = nullptr;
-    for (char* entry = SDL_strtok_r(text, "\r\n", &rest); entry; entry = SDL_strtok_r(nullptr, "\r\n", &rest))
-    {
-        char* value = SDL_strchr(entry, '=');
-        if (!value)
-            continue;
-        *value++ = '\0';
-        line(std::string(entry), value);
-    }
-    SDL_free(text);
-    return true;
-}
-
-static void file_write(const std::string& path, const std::string& text)
+void file_write(const std::string& path, const std::string& text)
 {
     SDL_CreateDirectory(path.substr(0, path.find_last_of('/')).c_str());
     if (!SDL_SaveFile(path.c_str(), text.data(), text.size()))
@@ -100,48 +17,9 @@ static void file_write(const std::string& path, const std::string& text)
 #endif
 }
 
-// Reads every field a visitable struct names from a key=value file, and writes them back.
-template <class Fields> static bool fields_read(const std::string& path, Fields& fields)
-{
-    return lines_read(path, [&](const std::string& key, const char* value) {
-        fields.visit([&](const char* name, auto& field) {
-            if (key == name)
-                value_read(value, field);
-        });
-    });
-}
-
-template <class Fields> static std::string fields_write(Fields& fields)
-{
-    std::string text;
-    fields.visit([&](const char* name, auto& field) {
-        using Type = std::decay_t<decltype(field)>;
-        if constexpr (std::is_same_v<Type, bool> || std::is_enum_v<Type>)
-            text += std::string(name) + "=" + value_write((int)field) + "\n";
-        else
-            text += std::string(name) + "=" + value_write(field) + "\n";
-    });
-    return text;
-}
-
-template <class Visitor> void Settings::visit(Visitor&& visitor)
-{
-    visitor("character_color", isCharacterColor);
-    visitor("color", color);
-    visitor("console", isConsole);
-    visitor("height", height);
-    visitor("last_character", lastCharacter);
-    visitor("measurement", measurement);
-    visitor("mute", isMuted);
-    visitor("volume", volume);
-    visitor("width", width);
-    visitor("x", x);
-    visitor("y", y);
-}
-
 void Settings::load()
 {
-    fields_read(pref_path_get(SETTINGS_FILE), *this);
+    is_fields_read(pref_path_get(SETTINGS_FILE), *this);
 }
 
 void Settings::save()
@@ -159,53 +37,3 @@ void Settings::reset()
     isCharacterColor = defaults.isCharacterColor;
     isMuted = defaults.isMuted;
 }
-
-template <class Visitor> void Progress::visit(Visitor&& visitor)
-{
-    visitor("alternate", isAlternate);
-    visitor("calories", calories);
-    visitor("capacity", capacity);
-    visitor("digesting", isDigesting);
-    visitor("digestion_progress", digestionProgress);
-    visitor("digestion_rate", digestionRate);
-    visitor("digestion_timer", digestionTimer);
-    visitor("pan", pan);
-    visitor("playtime", playtime);
-    visitor("postgame", isPostgame);
-    visitor("spawn_delay", spawnDelay);
-    visitor("total_calories", totalCalories);
-    visitor("total_consumed", totalConsumed);
-    visitor("total_spawned", totalSpawned);
-    visitor("weight", weight);
-    visitor("zoom", zoom);
-}
-
-// Items are kept one per line as their position, velocity, rotation and then name.
-void Progress::load(const std::string& path)
-{
-    *this = {};
-    isValid = fields_read(path, *this);
-    lines_read(path, [&](const std::string& key, const char* value) {
-        if (key == KEY_DISCOVERED)
-            discovered.emplace_back(value);
-        SavedItem item;
-        int length = 0;
-        if (key == KEY_ITEM && std::sscanf(value, "%f %f %f %f %f %n", &item.position.x, &item.position.y,
-                                          &item.velocity.x, &item.velocity.y, &item.rotation, &length) == 5)
-        {
-            item.name = value + length;
-            items.push_back(item);
-        }
-    });
-}
-
-void Progress::save(const std::string& path)
-{
-    std::string text = fields_write(*this);
-    for (const std::string& name : discovered)
-        text += std::string(KEY_DISCOVERED) + "=" + name + "\n";
-    for (const SavedItem& item : items)
-        text += std::string(KEY_ITEM) + "=" + value_write(item.position) + " " + value_write(item.velocity) + " " +
-                value_write(item.rotation) + " " + item.name + "\n";
-    file_write(path, text);
-}

src/save.h

@@ -1,9 +1,14 @@
 #pragma once
 
 #include "common.h"
+#include <SDL3/SDL_iostream.h>
 #include <SDL3/SDL_video.h>
+#include <cstdio>
 #include <string>
-#include <vector>
+#include <type_traits>
+
+// Text files of key=value lines. A struct names the fields it keeps with visit(visitor), calling visitor(key, field)
+// for each, and reads and writes them through fields_read and fields_write.
 
 enum Measurement
 {
@@ -11,6 +16,76 @@ enum Measurement
     MEASUREMENT_IMPERIAL
 };
 
+void file_write(const std::string& path, const std::string& text);
+
+// Calls line with each key and value of a file. Returns whether it was there.
+template <class Line> bool is_file_read(const std::string& path, Line&& line)
+{
+    char* text = (char*)SDL_LoadFile(path.c_str(), nullptr);
+    if (!text)
+        return false;
+    char* rest = nullptr;
+    for (char* entry = SDL_strtok_r(text, "\r\n", &rest); entry; entry = SDL_strtok_r(nullptr, "\r\n", &rest))
+    {
+        char* value = SDL_strchr(entry, '=');
+        if (!value)
+            continue;
+        *value++ = '\0';
+        line(std::string(entry), (const char*)value);
+    }
+    SDL_free(text);
+    return true;
+}
+
+template <class Field> void field_read(const char* text, Field& field)
+{
+    if constexpr (std::is_same_v<Field, std::string>)
+        field = text;
+    else if constexpr (std::is_same_v<Field, Vec2>)
+        std::sscanf(text, "%f %f", &field.x, &field.y);
+    else if constexpr (std::is_same_v<Field, Color>)
+        std::sscanf(text, "%f %f %f", &field.r, &field.g, &field.b);
+    else if constexpr (std::is_floating_point_v<Field>)
+        field = (Field)SDL_atof(text);
+    else
+        field = (Field)SDL_atoi(text);
+}
+
+template <class Field> std::string field_write(const Field& field)
+{
+    if constexpr (std::is_same_v<Field, std::string>)
+        return field;
+    else if constexpr (std::is_same_v<Field, Vec2>)
+        return field_write(field.x) + " " + field_write(field.y);
+    else if constexpr (std::is_same_v<Field, Color>)
+        return field_write(field.r) + " " + field_write(field.g) + " " + field_write(field.b);
+    else if constexpr (std::is_floating_point_v<Field>)
+        return std::to_string(field);
+    else
+        return std::to_string((int)field);
+}
+
+// Sets whichever of a struct's fields a line names.
+template <class Fields> void field_line_read(Fields& fields, const std::string& key, const char* value)
+{
+    fields.visit([&](const char* name, auto& field) {
+        if (key == name)
+            field_read(value, field);
+    });
+}
+
+template <class Fields> bool is_fields_read(const std::string& path, Fields& fields)
+{
+    return is_file_read(path, [&](const std::string& key, const char* value) { field_line_read(fields, key, value); });
+}
+
+template <class Fields> std::string fields_write(Fields& fields)
+{
+    std::string text;
+    fields.visit([&](const char* name, auto& field) { text += std::string(name) + "=" + field_write(field) + "\n"; });
+    return text;
+}
+
 // The game's preferences, kept in settings.txt.
 struct Settings
 {
@@ -29,23 +104,26 @@ struct Settings
     void load();
     void save();
     void reset();
-    template <class Visitor> void visit(Visitor&& visitor);
+
+    template <class Visitor> void visit(Visitor&& visitor)
+    {
+        visitor("character_color", isCharacterColor);
+        visitor("color", color);
+        visitor("console", isConsole);
+        visitor("height", height);
+        visitor("last_character", lastCharacter);
+        visitor("measurement", measurement);
+        visitor("mute", isMuted);
+        visitor("volume", volume);
+        visitor("width", width);
+        visitor("x", x);
+        visitor("y", y);
+    }
 };
 
-struct SavedItem
+// A character's body as it is now: what's in it, how it digests, what it's eaten. Rates are percent per tick.
+struct Stats
 {
-    std::string name;
-    Vec2 position;
-    Vec2 velocity;
-    float rotation = 0;
-};
-
-// A character's progress, kept in saves/<character>.txt, and the live state of one being played.
-struct Progress
-{
-    std::vector<std::string> discovered;
-    std::vector<SavedItem> items;
-    Vec2 pan;
     float calories = 0;
     float capacity = 0;
     float digestionProgress = 0;
@@ -53,17 +131,25 @@ struct Progress
     float playtime = 0;
     float totalCalories = 0;
     float weight = 0;
-    float zoom = 0;
     int digestionTimer = 0;
-    int spawnDelay = 0;
     int totalConsumed = 0;
     int totalSpawned = 0;
     bool isAlternate = false;
     bool isDigesting = false;
-    bool isPostgame = false;
-    bool isValid = false;
 
-    void load(const std::string& path);
-    void save(const std::string& path);
-    template <class Visitor> void visit(Visitor&& visitor);
+    template <class Visitor> void visit(Visitor&& visitor)
+    {
+        visitor("alternate", isAlternate);
+        visitor("calories", calories);
+        visitor("capacity", capacity);
+        visitor("digesting", isDigesting);
+        visitor("digestion_progress", digestionProgress);
+        visitor("digestion_rate", digestionRate);
+        visitor("digestion_timer", digestionTimer);
+        visitor("playtime", playtime);
+        visitor("total_calories", totalCalories);
+        visitor("total_consumed", totalConsumed);
+        visitor("total_spawned", totalSpawned);
+        visitor("weight", weight);
+    }
 };

src/strings.h

@@ -1,106 +0,0 @@
-#pragma once
-
-// Every piece of UI text a character can replace (in its character.json "strings"), with its default.
-#define STRINGS(X)                                                                                                     \
-    X(MenuTabInteract, "Interact")                                                                                      \
-    X(MenuTabInventory, "Catalog")                                                                                      \
-    X(MenuTabSettings, "Settings")                                                                                      \
-    X(MenuTabCheats, "Cheats")                                                                                          \
-    X(MenuOpenTooltip, "Open Main Menu")                                                                                \
-    X(MenuCloseTooltip, "Close Main Menu")                                                                              \
-    X(InteractChatButton, "Let's chat!")                                                                                \
-    X(InteractHelpButton, "Help")                                                                                       \
-    X(InteractFeelingButton, "How are you feeling?")                                                                    \
-    X(InteractSpawnItemButton, "Spawn Item")                                                                            \
-    X(InteractSpawnItemCooldownFormat, "Next item in %0.2fs")                                                           \
-    X(InteractStats, "Stats")                                                                                           \
-    X(InteractWeightFormat, "Weight: %0.2f %s (Stage: %i)")                                                             \
-    X(InteractCapacityFormat, "Capacity: %0.0f / %0.0f kcal")                                                           \
-    X(InteractDigestionRateFormat, "Digestion Rate: %0.2f%%/sec")                                                       \
-    X(InteractTotalCaloriesFormat, "Total Calories Consumed: %0.0f kcal")                                               \
-    X(InteractTotalItemsSpawnedFormat, "Total Items Spawned: %i")                                                       \
-    X(InteractTotalItemsConsumedFormat, "Total Items Consumed: %i")                                                     \
-    X(InteractTotalPlaytimeFormat, "Total Playtime: %s")                                                                \
-    X(SettingsWindow, "Window")                                                                                         \
-    X(SettingsWindowMode, "Mode")                                                                                       \
-    X(SettingsWindowModeTooltip, "Switch between windowed and fullscreen display.\n(Shortcut: F)")                      \
-    X(SettingsWindowed, "Windowed")                                                                                     \
-    X(SettingsFullscreen, "Fullscreen")                                                                                 \
-    X(SettingsMeasurementSystem, "Measurement System")                                                                  \
-    X(SettingsMetric, "Metric")                                                                                         \
-    X(SettingsMetricTooltip, "Use kilograms/grams (kg/g).")                                                             \
-    X(SettingsImperial, "Imperial")                                                                                     \
-    X(SettingsImperialTooltip, "Use pounds/ounces (lbs/oz).")                                                           \
-    X(SettingsSound, "Sound")                                                                                           \
-    X(SettingsVolume, "Volume")                                                                                         \
-    X(SettingsVolumeTooltip, "Adjust master volume.")                                                                   \
-    X(SettingsMute, "Mute")                                                                                             \
-    X(SettingsMuteTooltip, "Mute all audio.\n(Shortcut: M)")                                                            \
-    X(SettingsAppearance, "Appearance")                                                                                 \
-    X(SettingsUseCharacterColor, "Use Character Color")                                                                 \
-    X(SettingsUseCharacterColorTooltip, "When playing, the UI will use the character's preset UI color.")               \
-    X(SettingsColor, "Color")                                                                                           \
-    X(SettingsColorTooltip, "Change the UI color.")                                                                     \
-    X(SettingsResetButton, "Reset to Default")                                                                          \
-    X(SettingsSaveButton, "Save")                                                                                       \
-    X(SettingsSaveTooltip, "Save the game.\n(Note: the game autosaves frequently.)")                                    \
-    X(SettingsReturnToCharactersButton, "Return to Characters")                                                         \
-    X(SettingsReturnToCharactersTooltip, "Go back to the character selection screen.\nProgress will be saved.")         \
-    X(ToastCheatsUnlocked, "Cheats unlocked!")                                                                          \
-    X(ToastSaving, "Saving...")                                                                                         \
-    X(ToastNewItemFound, "New item found!")                                                                             \
-    X(ToolsHomeButton, "Home")                                                                                          \
-    X(ToolsHomeTooltip, "Reset camera view.\n(Shortcut: Home)")                                                         \
-    X(ToolsOpenTooltip, "Open Tools")                                                                                   \
-    X(ToolsCloseTooltip, "Close Tools")                                                                                 \
-    X(ToolsAutofeedDisabledTooltip, "Disabled while Autofeed is active!")                                               \
-    X(InventoryEmptyHint, "No items.")                                                                                  \
-    X(InventoryFlavorFormat, "Flavor: %s")                                                                              \
-    X(InventoryCaloriesFormat, "%0.0f kcal")                                                                            \
-    X(InventoryCapacityBonusFormat, "Capacity Bonus: +%0.0f kcal")                                                      \
-    X(InventoryDigestionRateBonusFormat, "Digestion Rate Bonus: +%0.2f%% / sec")                                        \
-    X(InventoryDigestionRatePenaltyFormat, "Digestion Rate Penalty: %0.2f%% / sec")                                     \
-    X(InventoryEnableAutofeedButton, "Enable Autofeed")                                                                 \
-    X(InventoryDisableAutofeedButton, "Disable Autofeed")                                                               \
-    X(InventoryEnableAutofeedTooltip, "Serve the character food and assist in digestion automatically.")                \
-    X(InventoryDisableAutofeedTooltip, "Return to manual interaction.")                                                 \
-    X(InfoProgressMax, "MAX")                                                                                           \
-    X(InfoProgressToNextStage, "To Next Stage")                                                                         \
-    X(InfoStageProgressFormat, "Stage: %i/%i (%0.1f%%)")                                                                \
-    X(InfoMaxedOut, "Maxed out!")                                                                                       \
-    X(InfoStageStartFormat, "Start: %0.2f %s")                                                                          \
-    X(InfoStageCurrentFormat, "Current: %0.2f %s")                                                                      \
-    X(InfoStageNextFormat, "Next: %0.2f %s")                                                                            \
-    X(InfoDigestion, "Digestion")                                                                                       \
-    X(InfoDigesting, "Digesting...")                                                                                    \
-    X(InfoDigestionInProgress, "Digestion in progress...")                                                              \
-    X(InfoGiveFoodToStartDigesting, "Give food to start digesting!")                                                    \
-    X(InfoDigestionRateFormat, "Rate: %0.2f%% / sec")                                                                   \
-    X(CheatsCalories, "Calories")                                                                                       \
-    X(CheatsCapacity, "Capacity")                                                                                       \
-    X(CheatsWeight, "Weight")                                                                                           \
-    X(CheatsWeightFormat, "%0.2f kg")                                                                                   \
-    X(CheatsStage, "Stage")                                                                                             \
-    X(CheatsDigestionRate, "Digestion Rate")                                                                            \
-    X(CheatsDigestionRateFormat, "%0.2f%% / sec")                                                                       \
-    X(CheatsDigestButton, "Digest")
-
-enum StringId
-{
-#define X(name, text) STRING_##name,
-    STRINGS(X)
-#undef X
-        STRING_COUNT
-};
-
-constexpr const char* STRING_NAMES[] = {
-#define X(name, text) #name,
-    STRINGS(X)
-#undef X
-};
-
-constexpr const char* STRING_DEFAULTS[] = {
-#define X(name, text) text,
-    STRINGS(X)
-#undef X
-};

src/ui.h

@@ -18,52 +18,63 @@ enum Direction
     DIRECTION_RIGHT
 };
 
-// Hover and select sounds (from the character being played, or none) and the pulsing border on hovered widgets.
-void widget_sounds_set(Audio* audio, const Sounds* hover, const Sounds* select);
-void widget_fx();
-
-// Passes a widget's result through after giving it its sounds and hover border.
-inline bool is_fx(bool result)
+enum CommandType
 {
-    widget_fx();
-    return result;
-}
+    COMMAND_CONTINUE,
+    COMMAND_NEW_GAME,
+    COMMAND_MENU,
+    COMMAND_SAVE,
+    COMMAND_RELOAD,
+    COMMAND_FULLSCREEN
+};
 
-inline ImVec4 imvec4_get(Color color)
+// A request, from the UI or the console, for the game to change what's running. Character names a character's folder.
+struct Command
 {
-    return {color.r, color.g, color.b, color.a};
-}
+    std::string character;
+    CommandType type = COMMAND_MENU;
+};
+
+using Commands = std::vector<Command>;
 
 void style_set(Color color, float rounding = 0);
-float row_width_get(int count);
-void tooltip_set(const char* text, float size = FONT_NORMAL);
-void triangle_draw(ImVec2 position, ImVec2 size, Direction direction);
 
-// The menus, tools, toasts and select screen.
+// The menus, tools, dialogue box, toasts and select screen.
 class Ui
 {
 public:
-    std::vector<Actor> itemActors;
     std::vector<Canvas> itemCanvases;
+    std::vector<ImVec2> itemSizes;
     Actor previewActor;
     Canvas previewCanvas;
-    Progress selectedProgress;
+    Stats selectedStats;
+    Audio* audio = nullptr;
+    Character* catalogCharacter = nullptr;
+    Character* character = nullptr;
+    Commands* commands = nullptr;
+    Renderer* renderer = nullptr;
     float menuSlide = 1;
     float toolsSlide = 0;
     int characterIndex = 0;
-    int progressIndex = -1;
+    int selectedIndex = -1;
     int selectedItem = -1;
-    bool isContinue = false;
     bool isFullscreen = false;
-    bool isFullscreenToggled = false;
-    bool isNewGame = false;
     bool isNewGameWarning = false;
-    bool isPreview = false;
-    bool isRefresh = false;
-    bool isReturn = false;
-    bool isSave = false;
+    bool isSelectedSaved = false;
 
-    void play_update(Play& play, Settings& settings, Renderer& renderer, Audio& audio);
-    void select_update(std::vector<Character>& characters, Settings& settings, Renderer& renderer, Audio& audio);
-    void settings_update(Settings& settings, Audio& audio, const Character* character);
+    void play_update(Play& play, Settings& settings);
+    void select_update(std::vector<Character>& characters, Settings& settings);
+
+private:
+    bool is_fx(bool result);
+    void command_add(CommandType type, const std::string& key = "");
+    void settings_draw(Settings& settings);
+    void interact_tab_draw(Play& play, Settings& settings);
+    void catalog_tab_draw(Play& play);
+    void cheats_tab_draw(Play& play);
+    void tools_draw(Play& play, ImVec2 position, ImVec2 size);
+    void bar_draw(Play& play, bool& isOpen, float slide, ImVec2 position, ImVec2 size, Direction direction,
+                  const char* openTooltip, const char* closeTooltip);
+    void text_draw(Play& play, ImVec2 screen);
+    void toasts_draw(Play& play);
 };