1 files changed, 83 insertions, 0 deletions
diff --git a/include/palette_util.h b/include/palette_util.h
new file mode 100644
index 000000000..46468c0a6
--- /dev/null
+++ b/include/palette_util.h
@@ -0,0 +1,83 @@
+#ifndef GUARD_PALETTE_UTIL_H
+#define GUARD_PALETTE_UTIL_H
+
+struct PulseBlendSettings
+{
+    u16 blendColor;
+    u16 paletteOffset;
+    u8 numColors;
+    u8 delay;
+    u8 numFadeCycles;
+    s8 maxBlendCoeff:4;
+    s8 fadeType:2;
+    s8 restorePaletteOnUnload:1;
+    s8 unk7_7:1;
+};
+
+struct PulseBlendPalette
+{
+    u8 paletteSelector;
+    u8 blendCoeff:4;
+    u8 fadeDirection:1;
+    s8 unk1_5:1;
+    s8 available:1;
+    u32 inUse:1;
+    u8 delayCounter;
+    u8 fadeCycleCounter;
+    struct PulseBlendSettings pulseBlendSettings;
+};
+
+struct PulseBlend
+{
+    u16 usedPulseBlendPalettes;
+    struct PulseBlendPalette pulseBlendPalettes[16];
+};
+
+
+#define FLASHUTIL_USE_EXISTING_COLOR (1 << 15)
+
+struct RouletteFlashSettings
+{
+    u16 color;
+    u16 paletteOffset;
+    u8 numColors;
+    u8 delay;
+    s8 unk6;      // Set but never used
+    s8 numFadeCycles:5;
+    s8 unk7_5:2;  // Set but never used
+    s8 colorDeltaDir:1;
+};
+
+struct RouletteFlashPalette
+{
+    u8 state:7;
+    bool8 available:1;
+    u8 delayCounter;
+    s8 fadeCycleCounter;
+    s8 colorDelta;
+    struct RouletteFlashSettings settings;
+};
+
+struct RouletteFlashUtil
+{
+    u8 enabled;
+    u8 unused;
+    u16 flags;
+    struct RouletteFlashPalette palettes[16];
+};
+
+int InitPulseBlendPaletteSettings(struct PulseBlend *, const struct PulseBlendSettings *);
+void InitPulseBlend(struct PulseBlend *);
+void MarkUsedPulseBlendPalettes(struct PulseBlend *, u16, u8);
+void UnloadUsedPulseBlendPalettes(struct PulseBlend *, u16, u8);
+void UnmarkUsedPulseBlendPalettes(struct PulseBlend *, u16, u8);
+void UpdatePulseBlend(struct PulseBlend *);
+void ClearTilemapRect(u16 *dest, u16 src, u8 left, u8 top, u8 width, u8 height);
+void SetTilemapRect(u16 *dest, u16 *src, u8 left, u8 top, u8 width, u8 height);
+void RouletteFlash_Run(struct RouletteFlashUtil *r0);
+void RouletteFlash_Reset(struct RouletteFlashUtil *r0);
+u8 RouletteFlash_Add(struct RouletteFlashUtil *r0, u8 r1, const struct RouletteFlashSettings *r2);
+void RouletteFlash_Stop(struct RouletteFlashUtil *r0, u16 r1);
+void RouletteFlash_Enable(struct RouletteFlashUtil *r0, u16 r1);
+
+#endif // GUARD_PALETTE_UTIL_H