Rewrite on simdjson with a flat src and smack-style build

src/ui.h

@@ -0,0 +1,68 @@
+#pragma once
+
+#include "character.h"
+#include "save.h"
+#include <imgui.h>
+
+constexpr float FONT_NORMAL = 20;
+constexpr float FONT_HEADER_3 = 24;
+constexpr float FONT_HEADER_2 = 30;
+constexpr float FONT_HEADER_1 = 40;
+constexpr float FONT_HUGE = 80;
+
+class Play;
+
+enum Direction
+{
+    DIRECTION_LEFT,
+    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 fx(bool result)
+{
+    widget_fx();
+    return result;
+}
+
+inline ImVec4 imvec4_get(Color color)
+{
+    return {color.r, color.g, color.b, color.a};
+}
+
+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.
+class Ui
+{
+public:
+    std::vector<Actor> itemActors;
+    std::vector<Canvas> itemCanvases;
+    Actor previewActor;
+    Canvas previewCanvas;
+    Progress selectedProgress;
+    float menuSlide = 1;
+    float toolsSlide = 0;
+    int characterIndex = 0;
+    int progressIndex = -1;
+    int selectedItem = -1;
+    bool isContinue = false;
+    bool isFullscreen = false;
+    bool isFullscreenToggled = false;
+    bool isNewGame = false;
+    bool isNewGameWarning = false;
+    bool isPreview = false;
+    bool isReturn = false;
+    bool isSave = false;
+
+    void play_update(Play& play, Settings& settings, Renderer& renderer, Audio& audio);
+    bool select_update(std::vector<Character>& characters, Settings& settings, Renderer& renderer, Audio& audio);
+    void settings_update(Settings& settings, Audio& audio, const Character* character);
+};