decompile time events

3 files changed, 176 insertions, 3 deletions

diff --git a/include/field_weather.h b/include/field_weather.h
index e12107e70..0bdebf747 100644
--- a/include/field_weather.h
+++ b/include/field_weather.h
@@ -1,12 +1,175 @@
 #ifndef GUARD_WEATHER_H
 #define GUARD_WEATHER_H
 
-void fade_screen(u8, s8);
+#include "sprite.h"
 
+// Controls how the weather should be changing the screen palettes.
+enum {
+    WEATHER_PAL_STATE_CHANGING_WEATHER,
+    WEATHER_PAL_STATE_SCREEN_FADING_IN,
+    WEATHER_PAL_STATE_SCREEN_FADING_OUT,
+    WEATHER_PAL_STATE_IDLE,
+};
+
+struct Weather
+{
+    union
+    {
+        struct
+        {
+            struct Sprite *rainSprites[24];
+            struct Sprite *snowflakeSprites[101];
+            struct Sprite *cloudSprites[3];
+        } s1;
+        struct
+        {
+            u8 filler0[0xA0];
+            struct Sprite *fog1Sprites[20];
+            struct Sprite *ashSprites[20];
+            struct Sprite *fog2Sprites[20];
+            struct Sprite *sandstormSprites1[20];
+            struct Sprite *sandstormSprites2[5];
+        } s2;
+    } sprites;
+    u8 gammaShifts[19][32];
+    u8 altGammaShifts[19][32];
+    s8 gammaIndex;
+    s8 gammaTargetIndex;
+    u8 gammaStepDelay;
+    u8 gammaStepFrameCounter;
+    u16 fadeDestColor;
+    u8 palProcessingState;
+    u8 fadeScreenCounter;
+    bool8 readyForInit;
+    u8 taskId;
+    u8 unknown_6CA;
+    u8 unknown_6CB;
+    u16 initStep;
+    u16 finishStep;
+    u8 currWeather;
+    u8 nextWeather;
+    u8 weatherGfxLoaded;
+    bool8 weatherChangeComplete;
+    u8 weatherPicSpritePalIndex;
+    u8 altGammaSpritePalIndex;
+    u16 unknown_6D6;
+    u8 unknown_6D8;
+    u8 unknown_6D9;
+    u8 rainSpriteCount;
+    u8 unknown_6DB;
+    u8 unknown_6DC;
+    u8 rainStrength;
+    /*0x6DE*/ u8 cloudSpritesCreated;
+    u8 filler_6DF[1];
+    u16 unknown_6E0;
+    u16 unknown_6E2;
+    u8 snowflakeSpriteCount;
+    u8 unknown_6E5;
+    u16 unknown_6E6;
+    u16 thunderCounter;
+    u8 unknown_6EA;
+    u8 unknown_6EB;
+    u8 unknown_6EC;
+    u8 unknown_6ED;
+    u16 fog1ScrollPosX;
+    u16 unknown_6F0;
+    u16 unknown_6F2;
+    u8 lightenedFogSpritePals[6];
+    u8 lightenedFogSpritePalsCount;
+    u8 fog1SpritesCreated;
+    u16 unknown_6FC;
+    u16 unknown_6FE;
+    u8 ashSpritesCreated;
+    u8 filler_701[3];
+    u32 unknown_704;
+    u32 unknown_708;
+    u8 filler_70C[2];
+    u16 unknown_70E;
+    u16 unknown_710;
+    u16 unknown_712;
+    u16 unknown_714;
+    u8 sandstormSprites1Created;
+    u8 sandstormSprites2Created;
+    u16 unknown_718;
+    u16 unknown_71A;
+    u16 unknown_71C;
+    u16 unknown_71E;
+    u16 unknown_720;
+    u16 unknown_722;
+    u8 fog2SpritesCreated;
+    u8 filler_725[1];
+    u16 unknown_726;
+    u16 unknown_728;
+    u16 unknown_72A;
+    u16 unknown_72C;
+    u8 unknown_72E;
+    u8 filler_72F;
+    u16 currBlendEVA;
+    u16 currBlendEVB;
+    u16 targetBlendEVA;
+    u16 targetBlendEVB;
+    u8 blendUpdateCounter;
+    u8 blendFrameCounter;
+    u8 blendDelay;
+    u8 filler_73B[0x3C-0x3B];
+    s16 unknown_73C;
+    s16 unknown_73E;
+    s16 unknown_740;
+    s16 unknown_742;
+    u8 filler_744[0xD-4];
+    s8 loadDroughtPalsIndex;
+    u8 loadDroughtPalsOffset;
+};
+
+void StartWeather(void);
+void ChangeWeather(u8 weather);
+void sub_807C988(u8 effect);
+void sub_807C9B4(u8 effect);
+void Task_WeatherInit(u8);
+void Task_WeatherMain(u8);
+void sub_807CAE8(void);
+void nullsub_38(void);
+void SetWeatherScreenFadeOut(void);
+
+enum
+{
+    FADE_FROM_BLACK,
+    FADE_TO_BLACK,
+    FADE_FROM_WHITE,
+    FADE_TO_WHITE,
+};
+
+void FadeScreen(u8, u8);
+// ...
+void UpdateSpritePaletteWithWeather(u8 tag);
+void ApplyWeatherGammaShiftToPal(u8);
+// ...
+void Weather_SetBlendCoeffs(u8, u8);
+// ...
+void PlayRainSoundEffect(void);
+// ...
 void SetSav1Weather(u32);
 u8 GetSav1Weather(void);
-void sub_80AEDBC(void);
-
+void SetSav1WeatherFromCurrMapHeader(void);
+// ...
 void DoCurrentWeather(void);
+void sub_8080750();
+
+bool8 IsWeatherNotFadingIn(void);
+bool8 IsWeatherChangeComplete(void);
+void SetWeather(u32);
+void UpdateWeatherPerDay(u16);
+void PreservePaletteInWeather(u8 index);
+void ResetPreservedPalettesInWeather(void);
+extern void ResetDroughtWeatherPaletteLoading(void);
+void ResetDroughtWeatherPaletteLoading(void);
+bool8 LoadDroughtWeatherPalettes(void);
+u8 GetCurrentWeather(void);
+void LoadCustomWeatherSpritePalette(const u16 *palette);
+
+
+extern struct Weather gWeather;
+
+extern struct Weather *const gWeatherPtr;
 
 #endif // GUARD_WEATHER_H
diff --git a/include/overworld.h b/include/overworld.h
index 597a160ed..974f8f091 100644
--- a/include/overworld.h
+++ b/include/overworld.h
@@ -70,6 +70,8 @@ void warp1_set_2(s8 mapGroup, s8 mapNum, s8 warpNum);
 void c2_load_new_map(void);
 void copy_saved_warp2_bank_and_enter_x_to_warp1(u8 unused);
 void mapldr_default(void);
+u8 get_map_light_from_warp0(void);
+bool8 is_light_level_1_2_3_5_or_6(u8 a1);
 
 void IncrementGameStat(u8);
 u32 GetGameStat(u8);
diff --git a/include/time_events.h b/include/time_events.h
new file mode 100644
index 000000000..fd6d29f39
--- /dev/null
+++ b/include/time_events.h
@@ -0,0 +1,8 @@
+#ifndef GUARD_TIME_EVENTS_H
+#define GUARD_TIME_EVENTS_H
+
+void UpdateMirageRnd(u16);
+u8 IsMirageIslandPresent(void);
+void UpdateBirchState(u16);
+
+#endif // GUARD_TIME_EVENTS_H