77 lines
2.0 KiB
C++
77 lines
2.0 KiB
C++
#include "snapshots.h"
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static void _snapshot_stack_push(SnapshotStack* stack, Snapshot* snapshot)
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{
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if (stack->top >= SNAPSHOT_STACK_MAX)
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{
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for (s32 i = 0; i < SNAPSHOT_STACK_MAX - 1; i++)
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stack->snapshots[i] = stack->snapshots[i + 1];
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stack->top = SNAPSHOT_STACK_MAX - 1;
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}
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stack->snapshots[stack->top++] = *snapshot;
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}
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static Snapshot* _snapshot_stack_pop(SnapshotStack* stack)
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{
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if (stack->top == 0) return nullptr;
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return &stack->snapshots[--stack->top];
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}
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static void _snapshot_set(Snapshots* self, Snapshot* snapshot)
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{
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if (!snapshot) return;
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*self->anm2 = snapshot->anm2;
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*self->reference = snapshot->reference;
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self->preview->time = snapshot->time;
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self->action = snapshot->action;
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//anm2_spritesheet_texture_pixels_upload(self->anm2);
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}
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Snapshot snapshot_get(Snapshots* self)
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{
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Snapshot snapshot = {*self->anm2, *self->reference, self->preview->time, self->action};
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//anm2_spritesheet_texture_pixels_download(&snapshot.anm2);
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return snapshot;
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}
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void snapshots_init(Snapshots* self, Anm2* anm2, Anm2Reference* reference, Preview* preview)
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{
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self->anm2 = anm2;
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self->reference = reference;
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self->preview = preview;
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}
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void snapshots_reset(Snapshots* self)
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{
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self->undoStack = SnapshotStack{};
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self->redoStack = SnapshotStack{};
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self->action.clear();
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}
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void snapshots_undo_push(Snapshots* self, Snapshot* snapshot)
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{
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self->redoStack.top = 0;
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_snapshot_stack_push(&self->undoStack, snapshot);
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}
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void snapshots_undo(Snapshots* self)
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{
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if (Snapshot* snapshot = _snapshot_stack_pop(&self->undoStack))
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{
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Snapshot current = snapshot_get(self);
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_snapshot_stack_push(&self->redoStack, ¤t);
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_snapshot_set(self, snapshot);
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}
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}
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void snapshots_redo(Snapshots* self)
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{
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if (Snapshot* snapshot = _snapshot_stack_pop(&self->redoStack))
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{
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Snapshot current = snapshot_get(self);
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_snapshot_stack_push(&self->undoStack, ¤t);
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_snapshot_set(self, snapshot);
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}
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} |