Fixed shadow brightness during battle transition.

include/field_weather.h

@@ -193,6 +193,7 @@ void Thunderstorm_Main(void);
 void Thunderstorm_InitAll(void);
 bool8 Thunderstorm_Finish(void);
 void FogHorizontal_InitVars(void);
+u8 UpdateShadowColor(u16 color);
 void FogHorizontal_Main(void);
 void FogHorizontal_InitAll(void);
 bool8 FogHorizontal_Finish(void);

src/battle_transition.c

@@ -1390,6 +1390,7 @@ static void InitPatternWeaveTransition(struct Task *task)
     sTransitionData->WIN0V = DISPLAY_HEIGHT;
     sTransitionData->BLDCNT = BLDCNT_TGT1_BG0 | BLDCNT_EFFECT_BLEND | BLDCNT_TGT2_ALL;
     sTransitionData->BLDALPHA = BLDALPHA_BLEND(task->tBlendTarget2, task->tBlendTarget1);
+    UpdateShadowColor(0x3DEF); // force shadows to gray
 
     for (i = 0; i < DISPLAY_HEIGHT; i++)
         gScanlineEffectRegBuffers[1][i] = DISPLAY_WIDTH;
@@ -3961,6 +3962,8 @@ static void VBlankCB_AngledWipes(void)
 #define tFadeFromGrayIncrement data[5]
 #define tDelayTimer            data[6]
 #define tBlend                 data[7]
+#define tBldCntSaved           data[8]
+#define tShadowColor           data[9]
 
 static void CreateIntroTask(s16 fadeToGrayDelay, s16 fadeFromGrayDelay, s16 numFades, s16 fadeToGrayIncrement, s16 fadeFromGrayIncrement)
 {
@@ -3988,17 +3991,29 @@ void Task_BattleTransition_Intro(u8 taskId)
 
 static bool8 TransitionIntro_FadeToGray(struct Task *task)
 {
+    u8 paletteNum = IndexOfSpritePaletteTag(TAG_WEATHER_START);
+    u16 index = (paletteNum+16)*16+9; // SHADOW_COLOR_INDEX
     if (task->tDelayTimer == 0 || --task->tDelayTimer == 0)
     {
+
         task->tDelayTimer = task->tFadeToGrayDelay;
         task->tBlend += task->tFadeToGrayIncrement;
         if (task->tBlend > 16)
             task->tBlend = 16;
+        if (paletteNum < 16)
+            task->tShadowColor = gPlttBufferFaded[index];
         BlendPalettes(PALETTES_ALL, task->tBlend, RGB(11, 11, 11));
+        if (paletteNum < 16)
+            gPlttBufferFaded[index] = task->tShadowColor;
     }
     if (task->tBlend >= 16)
     {
         // Fade to gray complete, start fade back
+        // Save BLDCNT and turn off targets temporarily
+        task->tBldCntSaved = GetGpuReg(REG_OFFSET_BLDCNT);
+        SetGpuReg(REG_OFFSET_BLDCNT, task->tBldCntSaved & ~BLDCNT_TGT2_BG_ALL);
+        if (paletteNum < 16)
+            gPlttBufferFaded[index] = RGB(11, 11, 11);
         task->tState++;
         task->tDelayTimer = task->tFadeFromGrayDelay;
     }
@@ -4009,11 +4024,18 @@ static bool8 TransitionIntro_FadeFromGray(struct Task *task)
 {
     if (task->tDelayTimer == 0 || --task->tDelayTimer == 0)
     {
+        u8 paletteNum = IndexOfSpritePaletteTag(TAG_WEATHER_START);
         task->tDelayTimer = task->tFadeFromGrayDelay;
         task->tBlend -= task->tFadeFromGrayIncrement;
         if (task->tBlend < 0)
             task->tBlend = 0;
         BlendPalettes(PALETTES_ALL, task->tBlend, RGB(11, 11, 11));
+        // Restore BLDCNT
+        SetGpuReg(REG_OFFSET_BLDCNT, task->tBldCntSaved);
+        if (paletteNum < 16) {
+            u16 index = (paletteNum+16)*16+9; // SHADOW_COLOR_INDEX
+            gPlttBufferFaded[index] = task->tShadowColor;
+        }
     }
     if (task->tBlend == 0)
     {
@@ -4306,6 +4328,7 @@ static bool8 FrontierLogoWave_Init(struct Task *task)
     LZ77UnCompVram(sFrontierLogo_Tileset, tileset);
     LoadPalette(sFrontierLogo_Palette, 0xF0, sizeof(sFrontierLogo_Palette));
     sTransitionData->cameraY = 0;
+    UpdateShadowColor(0x3DEF); // force shadows to gray
 
     task->tState++;
     return FALSE;

src/field_weather_effect.c

@@ -1377,7 +1377,7 @@ static void DestroyFogHorizontalSprites(void);
 #define SHADOW_COLOR_INDEX 9
 
 // Updates just the color of shadows to match special weather blending
-static u8 UpdateShadowColor(u16 color) {
+u8 UpdateShadowColor(u16 color) {
   u8 paletteNum = IndexOfSpritePaletteTag(TAG_WEATHER_START);
   u16 tempBuffer[16];
   u16 blendedColor;