1 files changed, 38 insertions, 0 deletions
diff --git a/include/brightness.h b/include/brightness.h
new file mode 100644
index 00000000..029ee0b9
--- /dev/null
+++ b/include/brightness.h
@@ -0,0 +1,38 @@
+#ifndef POKEDIAMOND_UNK_0200A104_H
+#define POKEDIAMOND_UNK_0200A104_H
+
+#include "global.h"
+#include "nitro/FX_types.h"
+
+struct BrightnessData
+{
+    fx32 surfaceMask;
+    u32 screenMask;
+    u16 step_count;
+    s16 target_brightness;
+    u32 unk0c;
+    s8 transition_direction;
+    s16 brightness_diff;
+    s16 step_size_integer;
+    u16 step_size_fractional;
+    u16 fractional_count;
+    s16 current_brightness;
+    BOOL transitionActive;
+};
+
+void DoBrightnessTransitionStep(struct BrightnessData *brightness);
+void InitBrightnessTransition(struct BrightnessData *brightnessData,
+    u16 step_count,
+    s16 target_brightness,
+    s16 start_brightness,
+    fx32 surfaceMask,
+    u32 screenMask);
+void StartBrightnessTransition(
+    u16 step_count, s16 target_brightness, s16 start_brightness, fx32 surfaceMask, u32 screenMask);
+void SetBrightness(fx32 brightness, fx32 surfaceMask, u32 screenMask);
+void InitAllScreenBrightnessData(void);
+void InitScreenBrightnessData(u32 screenMask);
+void DoAllScreenBrightnessTransitionStep(void);
+BOOL IsBrightnessTransitionActive(u32 screenMask);
+
+#endif // POKEDIAMOND_UNK_0200A104_H