Merge pull request #390 from huderlem/battle_anim_utility_funcs

Decompile all of battle_anim_utility_funcs

26 files changed, 1082 insertions, 135 deletions

diff --git a/src/battle_anim.c b/src/battle_anim.c
index 5c34d6a43..e8720fcfb 100644
--- a/src/battle_anim.c
+++ b/src/battle_anim.c
@@ -20,14 +20,6 @@
 
 #define ANIM_SPRITE_INDEX_COUNT 8
 
-extern u16 gBattle_WIN0H;
-extern u16 gBattle_WIN0V;
-extern u16 gBattle_WIN1H;
-extern u16 gBattle_WIN1V;
-extern u16 gBattle_BG1_X;
-extern u16 gBattle_BG1_Y;
-extern u16 gBattle_BG2_X;
-extern u16 gBattle_BG2_Y;
 extern struct MusicPlayerInfo gMPlayInfo_BGM;
 extern struct MusicPlayerInfo gMPlayInfo_SE1;
 extern struct MusicPlayerInfo gMPlayInfo_SE2;
@@ -1502,7 +1494,7 @@ void LaunchBattleAnimation(const u8 *const animsTable[], u16 tableId, bool8 isMo
     else
     {
         for (i = 0; i < 4; i++)
-            gAnimBattlerSpecies[i] = gContestResources->field_18->unk0;
+            gAnimBattlerSpecies[i] = gContestResources->field_18->species;
     }
 
     if (!isMoveAnim)
@@ -1959,7 +1951,7 @@ void sub_80A438C(u8 battlerId, bool8 toBG_2, bool8 setSpriteInvisible)
         battlerSpriteId = gBattlerSpriteIds[battlerId];
 
         gBattle_BG1_X =  -(gSprites[battlerSpriteId].pos1.x + gSprites[battlerSpriteId].pos2.x) + 0x20;
-        if (IsContest() && IsSpeciesNotUnown(gContestResources->field_18->unk0))
+        if (IsContest() && IsSpeciesNotUnown(gContestResources->field_18->species))
             gBattle_BG1_X--;
 
         gBattle_BG1_Y =  -(gSprites[battlerSpriteId].pos1.y + gSprites[battlerSpriteId].pos2.y) + 0x20;
@@ -2017,7 +2009,7 @@ static void sub_80A46A0(void)
     struct UnknownAnimStruct2 unknownStruct;
     u16 *ptr;
 
-    if (IsSpeciesNotUnown(gContestResources->field_18->unk0))
+    if (IsSpeciesNotUnown(gContestResources->field_18->species))
     {
         sub_80A6B30(&unknownStruct);
         ptr = unknownStruct.unk4;
diff --git a/src/battle_anim_80A5C6C.c b/src/battle_anim_80A5C6C.c
index d213e4831..d8e422bb5 100644
--- a/src/battle_anim_80A5C6C.c
+++ b/src/battle_anim_80A5C6C.c
@@ -159,7 +159,7 @@ u8 GetBattlerSpriteCoord(u8 battlerId, u8 attributeId)
             if (shared19348.unk4_0)
                 species = shared19348.unk2;
             else
-                species = shared19348.unk0;
+                species = shared19348.species;
         }
         else
         {
@@ -324,7 +324,7 @@ u8 GetBattlerSpriteCoord2(u8 battlerId, u8 attributeId)
             if (shared19348.unk4_0)
                 species = shared19348.unk2;
             else
-                species = shared19348.unk0;
+                species = shared19348.species;
         }
         else
         {
@@ -940,18 +940,18 @@ void sub_80A6BFC(struct UnknownAnimStruct2 *unk)
     }
 }
 
-void sub_80A6C68(u32 arg0)
+void sub_80A6C68(u32 bgId)
 {
     struct UnknownAnimStruct2 unkStruct;
 
-    sub_80A6B90(&unkStruct, arg0);
+    sub_80A6B90(&unkStruct, bgId);
     CpuFill32(0, unkStruct.bgTiles, 0x2000);
     LoadBgTiles(unkStruct.bgId, unkStruct.bgTiles, 0x2000, unkStruct.tilesOffset);
     FillBgTilemapBufferRect(unkStruct.bgId, 0, 0, 0, 0x20, 0x40, 0x11);
     CopyBgTilemapBufferToVram(unkStruct.bgId);
 }
 
-void sub_80A6CC0(u32 bgId, void *src, u32 tilesOffset)
+void sub_80A6CC0(u32 bgId, const void *src, u32 tilesOffset)
 {
     CpuFill32(0, gUnknown_0202305C, 0x2000);
     LZDecompressWram(src, gUnknown_0202305C);
@@ -1854,7 +1854,7 @@ u16 sub_80A7F18(u8 spriteId)
         {
             if (IsContest())
             {
-                species = shared19348.unk0;
+                species = shared19348.species;
                 return gMonBackPicCoords[species].y_offset;
             }
             else
@@ -2112,7 +2112,7 @@ s16 sub_80A861C(u8 battlerId, u8 a2)
         }
         else
         {
-            species = shared19348.unk0;
+            species = shared19348.species;
             personality = shared19348.unk8;
         }
         if (species == SPECIES_UNOWN)
diff --git a/src/battle_anim_80A9C70.c b/src/battle_anim_80A9C70.c
index 5401247b8..f1245a032 100644
--- a/src/battle_anim_80A9C70.c
+++ b/src/battle_anim_80A9C70.c
@@ -17,8 +17,6 @@ extern const u8 *const gBattleAnims_StatusConditions[];
 extern const struct OamData gUnknown_08524904;
 extern const struct OamData gUnknown_08524A3C;
 
-extern void sub_8116EB4(u8 taskId);
-
 // This file's functions.
 static void sub_80A9DB4(u8 taskId);
 static void sub_80A9FD0(u8 taskId);
diff --git a/src/battle_anim_sound_tasks.c b/src/battle_anim_sound_tasks.c
index b49a6d03f..07fb604b8 100644
--- a/src/battle_anim_sound_tasks.c
+++ b/src/battle_anim_sound_tasks.c
@@ -131,7 +131,7 @@ void sub_8158D8C(u8 taskId)
     if (IsContest())
     {
         if (gBattleAnimArgs[0] == ANIM_ATTACKER)
-            species = gContestResources->field_18->unk0;
+            species = gContestResources->field_18->species;
         else
             DestroyAnimVisualTask(taskId); // UB: function should return upon destroying task.
     }
@@ -177,7 +177,7 @@ void sub_8158E9C(u8 taskId)
     if (IsContest())
     {
         if (gBattleAnimArgs[0] == ANIM_ATTACKER)
-            species = gContestResources->field_18->unk0;
+            species = gContestResources->field_18->species;
         else
             DestroyAnimVisualTask(taskId); // UB: function should return upon destroying task.
     }
@@ -281,7 +281,7 @@ void sub_81590B8(u8 taskId)
     pan = BattleAnimAdjustPanning(SOUND_PAN_ATTACKER);
 
     if (IsContest())
-        species = gContestResources->field_18->unk0;
+        species = gContestResources->field_18->species;
     else
         species = gAnimBattlerSpecies[gBattleAnimAttacker];
 
diff --git a/src/battle_anim_utility_funcs.c b/src/battle_anim_utility_funcs.c
index d9c574e73..11cf46ab5 100644
--- a/src/battle_anim_utility_funcs.c
+++ b/src/battle_anim_utility_funcs.c
@@ -1,6 +1,42 @@
 #include "global.h"
 #include "battle_anim.h"
+#include "contest.h"
+#include "gpu_regs.h"
+#include "graphics.h"
+#include "malloc.h"
+#include "palette.h"
+#include "sound.h"
+#include "sprite.h"
+#include "task.h"
+#include "util.h"
 #include "constants/rgb.h"
+#include "constants/songs.h"
+
+struct AnimStatsChangeData
+{
+    u8 battler1;
+    u8 battler2;
+    u8 higherPriority;
+    s16 data[8];
+    u16 species;
+};
+
+static EWRAM_DATA struct AnimStatsChangeData *sAnimStatsChangeData = {0};
+
+static void StartBlendAnimSpriteColor(u8, u32);
+static void AnimTask_BlendSpriteColor_Step2(u8);
+static void sub_81169A0(u8);
+static void sub_81169F8(u8);
+static void sub_8116AD0(struct Sprite*);
+static void sub_8116D64(u8);
+static void sub_8116F04(u8);
+static void sub_81170EC(u8);
+static void sub_81172EC(u8);
+static void sub_8117500(u8);
+static void sub_81175C4(u32, u16);
+static void sub_81176D8(u8);
+static void sub_8117A60(u8);
+static void sub_8117FD0(u8);
 
 const u16 gUnknown_08597418 = RGB(31, 31, 31);
 
@@ -8,3 +44,1017 @@ const u16 gUnknown_08597418 = RGB(31, 31, 31);
 // possibly some register offsets
 const u8 gUnknown_0859741A[] = {0x08, 0x0a, 0x0c, 0x0e};
 const u8 gUnknown_0859741E[] = {0x08, 0x0a, 0x0c, 0x0e};
+
+void sub_8116620(u8 taskId)
+{
+    u32 selectedPalettes = sub_811583C(gBattleAnimArgs[0]);
+    selectedPalettes |= sub_80A76C4((gBattleAnimArgs[0] >>  7) & 1,
+                                    (gBattleAnimArgs[0] >>  8) & 1,
+                                    (gBattleAnimArgs[0] >>  9) & 1,
+                                    (gBattleAnimArgs[0] >> 10) & 1);
+    StartBlendAnimSpriteColor(taskId, selectedPalettes);
+}
+
+void sub_8116664(u8 taskId)
+{
+    u8 battler;
+    u32 selectedPalettes;
+    u8 animBattlers[2];
+
+    animBattlers[1] = 0xFF;
+    selectedPalettes = sub_811583C(1);
+    switch (gBattleAnimArgs[0])
+    {
+    case 2:
+        selectedPalettes = 0;
+        // fall through
+    case 0:
+        animBattlers[0] = gBattleAnimAttacker;
+        break;
+    case 3:
+        selectedPalettes = 0;
+        // fall through
+    case 1:
+        animBattlers[0] = gBattleAnimTarget;
+        break;
+    case 4:
+        animBattlers[0] = gBattleAnimAttacker;
+        animBattlers[1] = gBattleAnimTarget;
+        break;
+    case 5:
+        animBattlers[0] = 0xFF;
+        break;
+    case 6:
+        selectedPalettes = 0;
+        animBattlers[0] = BATTLE_PARTNER(gBattleAnimAttacker);
+        break;
+    case 7:
+        selectedPalettes = 0;
+        animBattlers[0] = BATTLE_PARTNER(gBattleAnimTarget);
+        break;
+    }
+
+    for (battler = 0; battler < MAX_BATTLERS_COUNT; battler++)
+    {
+        if (battler != animBattlers[0] && battler != animBattlers[1] && IsBattlerSpriteVisible(battler))
+            selectedPalettes |= 0x10000 << sub_80A77AC(battler);
+    }
+
+    StartBlendAnimSpriteColor(taskId, selectedPalettes);
+}
+
+void AnimTask_SetCamouflageBlend(u8 taskId)
+{
+    u32 selectedPalettes = sub_811583C(gBattleAnimArgs[0]);
+    switch (gBattleTerrain)
+    {
+    case BATTLE_TERRAIN_GRASS:
+        gBattleAnimArgs[4] = RGB(12, 24, 2);
+        break;
+    case BATTLE_TERRAIN_LONG_GRASS:
+        gBattleAnimArgs[4] = RGB(0, 15, 2);
+        break;
+    case BATTLE_TERRAIN_SAND:
+        gBattleAnimArgs[4] = RGB(30, 24, 11);
+        break;
+    case BATTLE_TERRAIN_UNDERWATER:
+        gBattleAnimArgs[4] = RGB(0, 0, 18);
+        break;
+    case BATTLE_TERRAIN_WATER:
+        gBattleAnimArgs[4] = RGB(11, 22, 31);
+        break;
+    case BATTLE_TERRAIN_POND:
+        gBattleAnimArgs[4] = RGB(11, 22, 31);
+        break;
+    case BATTLE_TERRAIN_MOUNTAIN:
+        gBattleAnimArgs[4] = RGB(22, 16, 10);
+        break;
+    case BATTLE_TERRAIN_CAVE:
+        gBattleAnimArgs[4] = RGB(14, 9, 3);
+        break;
+    case BATTLE_TERRAIN_BUILDING:
+        gBattleAnimArgs[4] = RGB(31, 31, 31);
+        break;
+    case BATTLE_TERRAIN_PLAIN:
+        gBattleAnimArgs[4] = RGB(31, 31, 31);
+        break;
+    }
+
+    StartBlendAnimSpriteColor(taskId, selectedPalettes);
+}
+
+void AnimTask_BlendParticle(u8 taskId)
+{
+    u8 paletteIndex = IndexOfSpritePaletteTag(gBattleAnimArgs[0]);
+    u32 selectedPalettes = 1 << (paletteIndex + 16);
+    StartBlendAnimSpriteColor(taskId, selectedPalettes);
+}
+
+void StartBlendAnimSpriteColor(u8 taskId, u32 selectedPalettes)
+{
+    gTasks[taskId].data[0] = selectedPalettes;
+    gTasks[taskId].data[1] = selectedPalettes >> 16;
+    gTasks[taskId].data[2] = gBattleAnimArgs[1];
+    gTasks[taskId].data[3] = gBattleAnimArgs[2];
+    gTasks[taskId].data[4] = gBattleAnimArgs[3];
+    gTasks[taskId].data[5] = gBattleAnimArgs[4];
+    gTasks[taskId].data[10] = gBattleAnimArgs[2];
+    gTasks[taskId].func = AnimTask_BlendSpriteColor_Step2;
+    gTasks[taskId].func(taskId);
+}
+
+static void AnimTask_BlendSpriteColor_Step2(u8 taskId)
+{
+    u32 selectedPalettes;
+    u16 singlePaletteMask = 0;
+
+    if (gTasks[taskId].data[9] == gTasks[taskId].data[2])
+    {
+        gTasks[taskId].data[9] = 0;
+        selectedPalettes = gTasks[taskId].data[0] | (gTasks[taskId].data[1] << 16);
+        while (selectedPalettes != 0)
+        {
+            if (selectedPalettes & 1)
+                BlendPalette(singlePaletteMask, 16, gTasks[taskId].data[10], gTasks[taskId].data[5]);
+            singlePaletteMask += 0x10;
+            selectedPalettes >>= 1;
+        }
+
+        if (gTasks[taskId].data[10] < gTasks[taskId].data[4])
+            gTasks[taskId].data[10]++;
+        else if (gTasks[taskId].data[10] > gTasks[taskId].data[4])
+            gTasks[taskId].data[10]--;
+        else
+            DestroyAnimVisualTask(taskId);
+    }
+    else
+    {
+        gTasks[taskId].data[9]++;
+    }
+}
+
+void sub_8116960(u8 taskId)
+{
+    BeginHardwarePaletteFade(
+        gBattleAnimArgs[0],
+        gBattleAnimArgs[1],
+        gBattleAnimArgs[2],
+        gBattleAnimArgs[3],
+        gBattleAnimArgs[4]);
+
+    gTasks[taskId].func = sub_81169A0;
+}
+
+static void sub_81169A0(u8 taskId)
+{
+    if (!gPaletteFade.active)
+        DestroyAnimVisualTask(taskId);
+}
+
+void sub_81169C0(u8 taskId)
+{
+    struct Task *task = &gTasks[taskId];
+
+    task->data[0] = gBattleAnimArgs[0];
+    task->data[1] = 0;
+    task->data[2] = gBattleAnimArgs[1];
+    task->data[3] = gBattleAnimArgs[2];
+    task->data[4] = gBattleAnimArgs[3];
+    task->data[5] = 0;
+    task->func = sub_81169F8;
+}
+
+static void sub_81169F8(u8 taskId)
+{
+    struct Task *task = &gTasks[taskId];
+
+    if (task->data[4])
+    {
+        if (task->data[1])
+        {
+            task->data[1]--;
+        }
+        else
+        {
+            task->data[6] = duplicate_obj_of_side_rel2move_in_transparent_mode(task->data[0]);
+            if (task->data[6] >= 0)
+            {
+                gSprites[task->data[6]].oam.priority = task->data[0] ? 1 : 2;
+                gSprites[task->data[6]].data[0] = task->data[3];
+                gSprites[task->data[6]].data[1] = taskId;
+                gSprites[task->data[6]].data[2] = 5;
+                gSprites[task->data[6]].callback = sub_8116AD0;
+                task->data[5]++;
+            }
+
+            task->data[4]--;
+            task->data[1] = task->data[2];
+        }
+    }
+    else if (task->data[5] == 0)
+    {
+        DestroyAnimVisualTask(taskId);
+    }
+}
+
+static void sub_8116AD0(struct Sprite *sprite)
+{
+    if (sprite->data[0])
+    {
+        sprite->data[0]--;
+    }
+    else
+    {
+        gTasks[sprite->data[1]].data[sprite->data[2]]--;
+        obj_delete_but_dont_free_vram(sprite);
+    }
+}
+
+void sub_8116B14(u8 taskId)
+{
+    u16 species;
+    int spriteId, newSpriteId;
+    u16 var0;
+    u16 bg1Cnt;
+    struct UnknownAnimStruct2 unknownStruct;
+
+    var0 = 0;
+    gBattle_WIN0H = 0;
+    gBattle_WIN0V = 0;
+    SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR
+                              | WININ_WIN1_BG_ALL | WININ_WIN1_OBJ | WININ_WIN1_CLR);
+    SetGpuReg(REG_OFFSET_WINOUT, WINOUT_WIN01_BG0 | WINOUT_WIN01_BG2 | WINOUT_WIN01_BG3 | WINOUT_WIN01_OBJ | WINOUT_WIN01_CLR
+                               | WINOUT_WINOBJ_BG_ALL | WINOUT_WINOBJ_OBJ | WINOUT_WINOBJ_CLR);
+    SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_OBJWIN_ON);
+    SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_BG1 | BLDCNT_TGT2_ALL | BLDCNT_EFFECT_BLEND);
+    SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(8, 12));
+    bg1Cnt = GetGpuReg(REG_OFFSET_BG1CNT);
+    ((struct BgCnt *)&bg1Cnt)->priority = 0;
+    ((struct BgCnt *)&bg1Cnt)->screenSize = 0;
+    SetGpuReg(REG_OFFSET_BG1CNT, bg1Cnt);
+
+    if (!IsContest())
+    {
+        ((struct BgCnt *)&bg1Cnt)->charBaseBlock = 1;
+        SetGpuReg(REG_OFFSET_BG1CNT, bg1Cnt);
+    }
+
+    if (IsDoubleBattle() && !IsContest())
+    {
+        if (GetBattlerPosition(gBattleAnimAttacker) == B_POSITION_OPPONENT_RIGHT
+         || GetBattlerPosition(gBattleAnimAttacker) == B_POSITION_PLAYER_LEFT)
+        {
+            if (IsBattlerSpriteVisible(BATTLE_PARTNER(gBattleAnimAttacker)) == TRUE)
+            {
+                gSprites[gBattlerSpriteIds[BATTLE_PARTNER(gBattleAnimAttacker)]].oam.priority -= 1;
+                ((struct BgCnt *)&bg1Cnt)->priority = 1;
+                SetGpuReg(REG_OFFSET_BG1CNT, bg1Cnt);
+                var0 = 1;
+            }
+        }
+    }
+
+    if (IsContest())
+    {
+        species = gContestResources->field_18->species;
+    }
+    else
+    {
+        if (GetBattlerSide(gBattleAnimAttacker) != B_SIDE_PLAYER)
+            species = GetMonData(&gEnemyParty[gBattlerPartyIndexes[gBattleAnimAttacker]], MON_DATA_SPECIES);
+        else
+            species = GetMonData(&gPlayerParty[gBattlerPartyIndexes[gBattleAnimAttacker]], MON_DATA_SPECIES);
+    }
+
+    spriteId = GetAnimBattlerSpriteId(0);
+    newSpriteId = sub_80A89C8(gBattleAnimAttacker, spriteId, species);
+    sub_80A6B30(&unknownStruct);
+    sub_80A6D60(&unknownStruct, gUnknown_08C20684, 0);
+    sub_80A6CC0(unknownStruct.bgId, gUnknown_08C20668, unknownStruct.tilesOffset);
+    LoadPalette(&gUnknown_08597418, unknownStruct.unk8 * 16 + 1, 2);
+
+    gBattle_BG1_X = -gSprites[spriteId].pos1.x + 32;
+    gBattle_BG1_Y = -gSprites[spriteId].pos1.y + 32;
+    gTasks[taskId].data[0] = newSpriteId;
+    gTasks[taskId].data[6] = var0;
+    gTasks[taskId].func = sub_8116D64;
+}
+
+static void sub_8116D64(u8 taskId)
+{
+    struct UnknownAnimStruct2 unknownStruct;
+    struct Sprite *sprite;
+    u16 bg1Cnt;
+
+    gTasks[taskId].data[10] += 4;
+    gBattle_BG1_Y -= 4;
+    if (gTasks[taskId].data[10] == 64)
+    {
+        gTasks[taskId].data[10] = 0;
+        gBattle_BG1_Y += 64;
+        if (++gTasks[taskId].data[11] == 4)
+        {
+            sub_80A477C(0);
+            gBattle_WIN0H = 0;
+            gBattle_WIN0V = 0;
+            SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR
+                                      | WININ_WIN1_BG_ALL | WININ_WIN1_OBJ | WININ_WIN1_CLR);
+            SetGpuReg(REG_OFFSET_WINOUT, WINOUT_WIN01_BG_ALL  | WINOUT_WIN01_OBJ  | WINOUT_WIN01_CLR
+                                       | WINOUT_WINOBJ_BG_ALL | WINOUT_WINOBJ_OBJ | WINOUT_WINOBJ_CLR);
+            if (!IsContest())
+            {
+                bg1Cnt = GetGpuReg(REG_OFFSET_BG1CNT);
+                ((struct BgCnt *)&bg1Cnt)->charBaseBlock = 0;
+                SetGpuReg(REG_OFFSET_BG1CNT, bg1Cnt);
+            }
+
+            SetGpuReg(REG_OFFSET_DISPCNT, GetGpuReg(REG_OFFSET_DISPCNT) ^ DISPCNT_OBJWIN_ON);
+            SetGpuReg(REG_OFFSET_BLDCNT, 0);
+            SetGpuReg(REG_OFFSET_BLDALPHA, 0);
+            sprite = &gSprites[GetAnimBattlerSpriteId(0)]; // unused
+            sprite = &gSprites[gTasks[taskId].data[0]];
+            DestroySprite(sprite);
+
+            sub_80A6B30(&unknownStruct);
+            sub_80A6C68(unknownStruct.bgId);
+            if (gTasks[taskId].data[6] == 1)
+                gSprites[gBattlerSpriteIds[BATTLE_PARTNER(gBattleAnimAttacker)]].oam.priority++;
+
+            gBattle_BG1_Y = 0;
+            DestroyAnimVisualTask(taskId);
+        }
+    }
+}
+
+void sub_8116EB4(u8 taskId)
+{
+    u8 i;
+
+    sAnimStatsChangeData = AllocZeroed(sizeof(struct AnimStatsChangeData));
+    for (i = 0; i < 8; i++)
+        sAnimStatsChangeData->data[i] = gBattleAnimArgs[i];
+
+    gTasks[taskId].func = sub_8116F04;
+}
+
+static void sub_8116F04(u8 taskId)
+{
+    if (sAnimStatsChangeData->data[2] == 0)
+        sAnimStatsChangeData->battler1 = gBattleAnimAttacker;
+    else
+        sAnimStatsChangeData->battler1 = gBattleAnimTarget;
+
+    sAnimStatsChangeData->battler2 = BATTLE_PARTNER(sAnimStatsChangeData->battler1);
+    if (IsContest() || (sAnimStatsChangeData->data[3] && !IsBattlerSpriteVisible(sAnimStatsChangeData->battler2)))
+        sAnimStatsChangeData->data[3] = 0;
+
+    gBattle_WIN0H = 0;
+    gBattle_WIN0V = 0;
+    SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR
+                              | WININ_WIN1_BG_ALL | WININ_WIN1_OBJ | WININ_WIN1_CLR);
+    SetGpuReg(REG_OFFSET_WINOUT, WINOUT_WIN01_BG0 | WINOUT_WIN01_BG2 | WINOUT_WIN01_BG3 | WINOUT_WIN01_OBJ  | WINOUT_WIN01_CLR
+                               | WINOUT_WINOBJ_BG_ALL | WINOUT_WINOBJ_OBJ | WINOUT_WINOBJ_CLR);
+    SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_OBJWIN_ON);
+    SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_BG1 | BLDCNT_TGT2_ALL | BLDCNT_EFFECT_BLEND);
+    SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(0, 16));
+    SetAnimBgAttribute(1, BG_ANIM_PRIORITY, 0);
+    SetAnimBgAttribute(1, BG_ANIM_SCREEN_SIZE, 0);
+    if (!IsContest())
+        SetAnimBgAttribute(1, BG_ANIM_CHAR_BASE_BLOCK, 1);
+
+    if (IsDoubleBattle() && sAnimStatsChangeData->data[3] == 0)
+    {
+        if (GetBattlerPosition(sAnimStatsChangeData->battler1) == B_POSITION_OPPONENT_RIGHT
+         || GetBattlerPosition(sAnimStatsChangeData->battler1) == B_POSITION_PLAYER_LEFT)
+        {
+            if (IsBattlerSpriteVisible(sAnimStatsChangeData->battler2) == TRUE)
+            {
+                gSprites[gBattlerSpriteIds[sAnimStatsChangeData->battler2]].oam.priority -= 1;
+                SetAnimBgAttribute(1, BG_ANIM_PRIORITY, 1);
+                sAnimStatsChangeData->higherPriority = 1;
+            }
+        }
+    }
+
+    if (IsContest())
+    {
+        sAnimStatsChangeData->species = gContestResources->field_18->species;
+    }
+    else
+    {
+        if (GetBattlerSide(sAnimStatsChangeData->battler1) != B_SIDE_PLAYER)
+            sAnimStatsChangeData->species = GetMonData(&gEnemyParty[gBattlerPartyIndexes[sAnimStatsChangeData->battler1]], MON_DATA_SPECIES);
+        else
+            sAnimStatsChangeData->species = GetMonData(&gPlayerParty[gBattlerPartyIndexes[sAnimStatsChangeData->battler1]], MON_DATA_SPECIES);
+    }
+
+    gTasks[taskId].func = sub_81170EC;
+}
+
+static void sub_81170EC(u8 taskId)
+{
+    struct UnknownAnimStruct2 unknownStruct;
+    u8 spriteId, spriteId2;
+    u8 battlerSpriteId;
+
+    spriteId2 = 0;
+    battlerSpriteId = gBattlerSpriteIds[sAnimStatsChangeData->battler1];
+    spriteId = sub_80A89C8(sAnimStatsChangeData->battler1, battlerSpriteId, sAnimStatsChangeData->species);
+    if (sAnimStatsChangeData->data[3])
+    {
+        battlerSpriteId = gBattlerSpriteIds[sAnimStatsChangeData->battler2];
+        spriteId2 = sub_80A89C8(sAnimStatsChangeData->battler2, battlerSpriteId, sAnimStatsChangeData->species);
+    }
+
+    sub_80A6B30(&unknownStruct);
+    if (sAnimStatsChangeData->data[0] == 0)
+        sub_80A6D60(&unknownStruct, gBattleStatMask1_Tilemap, 0);
+    else
+        sub_80A6D60(&unknownStruct, gBattleStatMask2_Tilemap, 0);
+
+    sub_80A6CC0(unknownStruct.bgId, gBattleStatMask_Gfx, unknownStruct.tilesOffset);
+    switch (sAnimStatsChangeData->data[1])
+    {
+    case 0:
+        LoadCompressedPalette(gBattleStatMask2_Pal, unknownStruct.unk8 << 4, 32);
+        break;
+    case 1:
+        LoadCompressedPalette(gBattleStatMask1_Pal, unknownStruct.unk8 << 4, 32);
+        break;
+    case 2:
+        LoadCompressedPalette(gBattleStatMask3_Pal, unknownStruct.unk8 << 4, 32);
+        break;
+    case 3:
+        LoadCompressedPalette(gBattleStatMask4_Pal, unknownStruct.unk8 << 4, 32);
+        break;
+    case 4:
+        LoadCompressedPalette(gBattleStatMask6_Pal, unknownStruct.unk8 << 4, 32);
+        break;
+    case 5:
+        LoadCompressedPalette(gBattleStatMask7_Pal, unknownStruct.unk8 << 4, 32);
+        break;
+    case 6:
+        LoadCompressedPalette(gBattleStatMask8_Pal, unknownStruct.unk8 << 4, 32);
+        break;
+    default:
+        LoadCompressedPalette(gBattleStatMask5_Pal, unknownStruct.unk8 << 4, 32);
+        break;
+    }
+
+    gBattle_BG1_X = 0;
+    gBattle_BG1_Y = 0;
+
+     if (sAnimStatsChangeData->data[0] == 1)
+    {
+        gBattle_BG1_X = 64;
+        gTasks[taskId].data[1] = -3;
+    }
+    else
+    {
+        gTasks[taskId].data[1] = 3;
+    }
+
+    if (sAnimStatsChangeData->data[4] == 0)
+    {
+        gTasks[taskId].data[4] = 10;
+        gTasks[taskId].data[5] = 20;
+    }
+    else
+    {
+        gTasks[taskId].data[4] = 13;
+        gTasks[taskId].data[5] = 30;
+    }
+
+    gTasks[taskId].data[0] = spriteId;
+    gTasks[taskId].data[2] = sAnimStatsChangeData->data[3];
+    gTasks[taskId].data[3] = spriteId2;
+    gTasks[taskId].data[6] = sAnimStatsChangeData->higherPriority;
+    gTasks[taskId].data[7] = gBattlerSpriteIds[sAnimStatsChangeData->battler2];
+    gTasks[taskId].func = sub_81172EC;
+
+    if (sAnimStatsChangeData->data[0] == 0)
+        PlaySE12WithPanning(SE_W287, BattleAnimAdjustPanning2(-64));
+    else
+        PlaySE12WithPanning(SE_W287B, BattleAnimAdjustPanning2(-64));
+}
+
+static void sub_81172EC(u8 taskId)
+{
+    gBattle_BG1_Y += gTasks[taskId].data[1];
+
+    switch (gTasks[taskId].data[15])
+    {
+    case 0:
+        if (gTasks[taskId].data[11]++ > 0)
+        {
+            gTasks[taskId].data[11] = 0;
+            gTasks[taskId].data[12]++;
+            SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(gTasks[taskId].data[12], 16 - gTasks[taskId].data[12]));
+            if (gTasks[taskId].data[12] == gTasks[taskId].data[4])
+                gTasks[taskId].data[15]++;
+        }
+        break;
+    case 1:
+        if (++gTasks[taskId].data[10] == gTasks[taskId].data[5])
+            gTasks[taskId].data[15]++;
+        break;
+    case 2:
+        if (gTasks[taskId].data[11]++ > 0)
+        {
+            gTasks[taskId].data[11] = 0;
+            gTasks[taskId].data[12]--;
+            SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(gTasks[taskId].data[12], 16 - gTasks[taskId].data[12]));
+            if (gTasks[taskId].data[12] == 0)
+            {
+                sub_80A477C(0);
+                gTasks[taskId].data[15]++;;
+            }
+        }
+        break;
+    case 3:
+        gBattle_WIN0H = 0;
+        gBattle_WIN0V = 0;
+        SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR
+                                  | WININ_WIN1_BG_ALL | WININ_WIN1_OBJ | WININ_WIN1_CLR);
+        SetGpuReg(REG_OFFSET_WINOUT, WINOUT_WIN01_BG_ALL  | WINOUT_WIN01_OBJ  | WINOUT_WIN01_CLR
+                                   | WINOUT_WINOBJ_BG_ALL | WINOUT_WINOBJ_OBJ | WINOUT_WINOBJ_CLR);
+
+        if (!IsContest())
+            SetAnimBgAttribute(1, BG_ANIM_CHAR_BASE_BLOCK, 0);
+
+        SetGpuReg(REG_OFFSET_DISPCNT, GetGpuReg(REG_OFFSET_DISPCNT) ^ DISPCNT_OBJWIN_ON);
+        SetGpuReg(REG_OFFSET_BLDCNT, 0);
+        SetGpuReg(REG_OFFSET_BLDALPHA, 0);
+        DestroySprite(&gSprites[gTasks[taskId].data[0]]);
+        if (gTasks[taskId].data[2])
+            DestroySprite(&gSprites[gTasks[taskId].data[3]]);
+
+        if (gTasks[taskId].data[6] == 1)
+            gSprites[gTasks[taskId].data[7]].oam.priority++;
+
+        Free(sAnimStatsChangeData);
+        sAnimStatsChangeData = NULL;
+        DestroyAnimVisualTask(taskId);
+        break;
+    }
+}
+
+void sub_8117494(u8 taskId)
+{
+    u32 selectedPalettes = sub_80A76C4(1, 1, 1, 1);
+    sub_81175C4(selectedPalettes, 0);
+    gTasks[taskId].data[14] = selectedPalettes >> 16;
+
+    selectedPalettes = sub_80A75AC(1, 0, 0, 0, 0, 0, 0) & 0xFFFF;
+    sub_81175C4(selectedPalettes, 0xFFFF);
+    gTasks[taskId].data[15] = selectedPalettes;
+
+    gTasks[taskId].data[0] = 0;
+    gTasks[taskId].data[1] = 0;
+    gTasks[taskId].func = sub_8117500;
+}
+
+static void sub_8117500(u8 taskId)
+{
+    u16 i;
+    struct Task *task = &gTasks[taskId];
+
+    switch (task->data[0])
+    {
+    case 0:
+        if (++task->data[1] > 6)
+        {
+            task->data[1] = 0;
+            task->data[2] = 16;
+            task->data[0]++;
+        }
+        break;
+    case 1:
+        if (++task->data[1] > 1)
+        {
+            task->data[1] = 0;
+            task->data[2]--;
+
+            for (i = 0; i < 16; i++)
+            {
+                if ((task->data[15] >> i) & 1)
+                {
+                    u16 paletteOffset = i * 16;
+                    BlendPalette(paletteOffset, 16, task->data[2], 0xFFFF);
+                }
+
+                if ((task->data[14] >> i) & 1)
+                {
+                    u16 paletteOffset = i * 16 + 0x100;
+                    BlendPalette(paletteOffset, 16, task->data[2], 0);
+                }
+            }
+
+            if (task->data[2] == 0)
+                task->data[0]++;
+        }
+        break;
+    case 2:
+        DestroyAnimVisualTask(taskId);
+        break;
+    }
+}
+
+static void sub_81175C4(u32 selectedPalettes, u16 color)
+{
+    u16 i;
+
+    for (i = 0; i < 32; i++)
+    {
+        if (selectedPalettes & 1)
+        {
+            u16 curOffset = i * 16;
+            u16 paletteOffset = curOffset;
+            while (curOffset < paletteOffset + 16)
+            {
+                gPlttBufferFaded[curOffset] = color;
+                curOffset++;
+            }
+        }
+
+        selectedPalettes >>= 1;
+    }
+}
+
+void sub_8117610(u8 taskId)
+{
+    u32 battler;
+    int j;
+    u32 selectedPalettes = 0;
+
+    for (battler = 0; battler < MAX_BATTLERS_COUNT; battler++)
+    {
+        if (gBattleAnimAttacker != battler)
+            selectedPalettes |= 1 << (battler + 16);
+    }
+
+    for (j = 5; j != 0; j--)
+        gBattleAnimArgs[j] = gBattleAnimArgs[j - 1];
+
+    StartBlendAnimSpriteColor(taskId, selectedPalettes);
+}
+
+void sub_8117660(u8 taskId)
+{
+    u8 newTaskId;
+
+    sub_80A6DAC(0);
+    newTaskId = CreateTask(sub_81176D8, 5);
+    if (gBattleAnimArgs[2] && GetBattlerSide(gBattleAnimAttacker) != B_SIDE_PLAYER)
+    {
+        gBattleAnimArgs[0] = -gBattleAnimArgs[0];
+        gBattleAnimArgs[1] = -gBattleAnimArgs[1];
+    }
+
+    gTasks[newTaskId].data[1] = gBattleAnimArgs[0];
+    gTasks[newTaskId].data[2] = gBattleAnimArgs[1];
+    gTasks[newTaskId].data[3] = gBattleAnimArgs[3];
+    gTasks[newTaskId].data[0]++;
+    DestroyAnimVisualTask(taskId);
+}
+
+static void sub_81176D8(u8 taskId)
+{
+    gTasks[taskId].data[10] += gTasks[taskId].data[1];
+    gTasks[taskId].data[11] += gTasks[taskId].data[2];
+    gBattle_BG3_X += gTasks[taskId].data[10] >> 8;
+    gBattle_BG3_Y += gTasks[taskId].data[11] >> 8;
+    gTasks[taskId].data[10] &= 0xFF;
+    gTasks[taskId].data[11] &= 0xFF;
+
+    if (gBattleAnimArgs[7] == gTasks[taskId].data[3])
+    {
+        gBattle_BG3_X = 0;
+        gBattle_BG3_Y = 0;
+        sub_80A6DAC(1);
+        DestroyTask(taskId);
+    }
+}
+
+void AnimTask_GetAttackerSide(u8 taskId)
+{
+    gBattleAnimArgs[7] = GetBattlerSide(gBattleAnimAttacker);
+    DestroyAnimVisualTask(taskId);
+}
+
+void AnimTask_GetTargetSide(u8 taskId)
+{
+    gBattleAnimArgs[7] = GetBattlerSide(gBattleAnimTarget);
+    DestroyAnimVisualTask(taskId);
+}
+
+void AnimTask_GetTargetIsAttackerPartner(u8 taskId)
+{
+    gBattleAnimArgs[7] = BATTLE_PARTNER(gBattleAnimAttacker) == gBattleAnimTarget;
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_81177E4(u8 taskId)
+{
+    u16 battler;
+
+    for (battler = 0; battler < MAX_BATTLERS_COUNT; battler++)
+    {
+        if (battler != gBattleAnimAttacker && IsBattlerSpriteVisible(battler))
+            gSprites[gBattlerSpriteIds[battler]].invisible = gBattleAnimArgs[0];
+    }
+
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_8117854(u8 taskId, int unused, u16 arg2, u8 battler1, u8 arg4, u8 arg5, u8 arg6, u8 arg7, const u8 *arg8, const u8 *arg9, const u16 *palette)
+{
+    u16 species;
+    u8 spriteId, spriteId2;
+    u16 bg1Cnt;
+    struct UnknownAnimStruct2 unknownStruct;
+    u8 battler2;
+
+    spriteId2 = 0;
+    battler2 = BATTLE_PARTNER(battler1);
+
+    if (IsContest() || (arg4 && !IsBattlerSpriteVisible(battler2)))
+        arg4 = 0;
+
+    gBattle_WIN0H = 0;
+    gBattle_WIN0V = 0;
+    SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR
+                              | WININ_WIN1_BG_ALL | WININ_WIN1_OBJ | WININ_WIN1_CLR);
+    SetGpuReg(REG_OFFSET_WINOUT, WINOUT_WIN01_BG0 | WINOUT_WIN01_BG2 | WINOUT_WIN01_BG3 | WINOUT_WIN01_OBJ  | WINOUT_WIN01_CLR
+                               | WINOUT_WINOBJ_BG_ALL | WINOUT_WINOBJ_OBJ | WINOUT_WINOBJ_CLR);
+    SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_OBJWIN_ON);
+    SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_BG1 | BLDCNT_TGT2_ALL | BLDCNT_EFFECT_BLEND);
+    SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(0, 16));
+    bg1Cnt = GetGpuReg(REG_OFFSET_BG1CNT);
+    ((vBgCnt *)&bg1Cnt)->priority = 0;
+    ((vBgCnt *)&bg1Cnt)->screenSize = 0;
+    ((vBgCnt *)&bg1Cnt)->areaOverflowMode = 1;
+    if (!IsContest())
+    {
+        ((vBgCnt *)&bg1Cnt)->charBaseBlock = 1;
+    }
+
+    SetGpuReg(REG_OFFSET_BG1CNT, bg1Cnt);
+
+    if (IsContest())
+    {
+        species = gContestResources->field_18->species;
+    }
+    else
+    {
+        if (GetBattlerSide(battler1) != B_SIDE_PLAYER)
+            species = GetMonData(&gEnemyParty[gBattlerPartyIndexes[battler1]], MON_DATA_SPECIES);
+        else
+            species = GetMonData(&gPlayerParty[gBattlerPartyIndexes[battler1]], MON_DATA_SPECIES);
+    }
+
+    spriteId = sub_80A89C8(battler1, gBattlerSpriteIds[battler1], species);
+    if (arg4)
+        spriteId2 = sub_80A89C8(battler2, gBattlerSpriteIds[battler2], species);
+
+    sub_80A6B30(&unknownStruct);
+    sub_80A6D60(&unknownStruct, arg9, 0);
+    sub_80A6CC0(unknownStruct.bgId, arg8, unknownStruct.tilesOffset);
+    LoadCompressedPalette(palette, unknownStruct.unk8 << 4, 32);
+
+    gBattle_BG1_X = 0;
+    gBattle_BG1_Y = 0;
+    gTasks[taskId].data[1] = arg2;
+    gTasks[taskId].data[4] = arg5;
+    gTasks[taskId].data[5] = arg7;
+    gTasks[taskId].data[6] = arg6;
+    gTasks[taskId].data[0] = spriteId;
+    gTasks[taskId].data[2] = arg4;
+    gTasks[taskId].data[3] = spriteId2;
+    gTasks[taskId].func = sub_8117A60;
+}
+
+static void sub_8117A60(u8 taskId)
+{
+    gTasks[taskId].data[13] += gTasks[taskId].data[1] < 0 ? -gTasks[taskId].data[1] : gTasks[taskId].data[1];
+    if (gTasks[taskId].data[1] < 0)
+        gBattle_BG1_Y -= gTasks[taskId].data[13] >> 8;
+    else
+        gBattle_BG1_Y += gTasks[taskId].data[13] >> 8;
+
+    gTasks[taskId].data[13] &= 0xFF;
+    switch (gTasks[taskId].data[15])
+    {
+    case 0:
+        if (gTasks[taskId].data[11]++ >= gTasks[taskId].data[6])
+        {
+            gTasks[taskId].data[11] = 0;
+            gTasks[taskId].data[12]++;
+            SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(gTasks[taskId].data[12], 16 - gTasks[taskId].data[12]));
+            if (gTasks[taskId].data[12] == gTasks[taskId].data[4])
+                gTasks[taskId].data[15]++;
+        }
+        break;
+    case 1:
+        if (++gTasks[taskId].data[10] == gTasks[taskId].data[5])
+            gTasks[taskId].data[15]++;
+        break;
+    case 2:
+        if (gTasks[taskId].data[11]++ >= gTasks[taskId].data[6])
+        {
+            gTasks[taskId].data[11] = 0;
+            gTasks[taskId].data[12]--;
+            SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(gTasks[taskId].data[12], 16 - gTasks[taskId].data[12]));
+            if (gTasks[taskId].data[12] == 0)
+            {
+                sub_80A477C(0);
+                gBattle_WIN0H = 0;
+                gBattle_WIN0V = 0;
+                SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR
+                                          | WININ_WIN1_BG_ALL | WININ_WIN1_OBJ | WININ_WIN1_CLR);
+                SetGpuReg(REG_OFFSET_WINOUT, WINOUT_WIN01_BG_ALL  | WINOUT_WIN01_OBJ  | WINOUT_WIN01_CLR
+                                           | WINOUT_WINOBJ_BG_ALL | WINOUT_WINOBJ_OBJ | WINOUT_WINOBJ_CLR);
+                if (!IsContest())
+                {
+                    u16 bg1Cnt = GetGpuReg(REG_OFFSET_BG1CNT);
+                    ((vBgCnt *)&bg1Cnt)->charBaseBlock = 0;
+                    SetGpuReg(REG_OFFSET_BG1CNT, bg1Cnt);
+                }
+
+                SetGpuReg(REG_OFFSET_DISPCNT, GetGpuReg(REG_OFFSET_DISPCNT) ^ DISPCNT_OBJWIN_ON);
+                SetGpuReg(REG_OFFSET_BLDCNT, 0);
+                SetGpuReg(REG_OFFSET_BLDALPHA, 0);
+                DestroySprite(&gSprites[gTasks[taskId].data[0]]);
+                if (gTasks[taskId].data[2])
+                    DestroySprite(&gSprites[gTasks[taskId].data[3]]);
+
+                DestroyAnimVisualTask(taskId);
+            }
+        }
+        break;
+    }
+}
+
+void AnimTask_GetBattleTerrain(u8 taskId)
+{
+    gBattleAnimArgs[0] = gBattleTerrain;
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_8117C44(u8 taskId)
+{
+    gMonSpritesGfxPtr->field_17C = AllocZeroed(0x2000);
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_8117C70(u8 taskId)
+{
+    Free(gMonSpritesGfxPtr->field_17C);
+    gMonSpritesGfxPtr->field_17C = NULL;
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_8117CA0(u8 taskId)
+{
+    u32 selectedPalettes;
+    int paletteIndex = 0;
+
+    if (gBattleAnimArgs[0] == 0)
+    {
+        selectedPalettes = sub_80A75AC(1, 0, 0, 0, 0, 0, 0);
+        while ((selectedPalettes & 1) == 0)
+        {
+            selectedPalettes >>= 1;
+            paletteIndex++;
+        }
+    }
+    else if (gBattleAnimArgs[0] == 1)
+    {
+        paletteIndex = gBattleAnimAttacker + 16;
+    }
+    else if (gBattleAnimArgs[0] == 2)
+    {
+        paletteIndex = gBattleAnimTarget + 16;
+    }
+
+    memcpy(&gMonSpritesGfxPtr->field_17C[gBattleAnimArgs[1] * 16], &gPlttBufferUnfaded[paletteIndex * 16], 32);
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_8117D3C(u8 taskId)
+{
+    u32 selectedPalettes;
+    int paletteIndex = 0;
+
+    if (gBattleAnimArgs[0] == 0)
+    {
+        selectedPalettes = sub_80A75AC(1, 0, 0, 0, 0, 0, 0);
+        while ((selectedPalettes & 1) == 0)
+        {
+            selectedPalettes >>= 1;
+            paletteIndex++;
+        }
+    }
+    else if (gBattleAnimArgs[0] == 1)
+    {
+        paletteIndex = gBattleAnimAttacker + 16;
+    }
+    else if (gBattleAnimArgs[0] == 2)
+    {
+        paletteIndex = gBattleAnimTarget + 16;
+    }
+
+    memcpy(&gPlttBufferUnfaded[paletteIndex * 16], &gMonSpritesGfxPtr->field_17C[gBattleAnimArgs[1] * 16], 32);
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_8117DD8(u8 taskId)
+{
+    u32 selectedPalettes;
+    int paletteIndex = 0;
+
+    if (gBattleAnimArgs[0] == 0)
+    {
+        selectedPalettes = sub_80A75AC(1, 0, 0, 0, 0, 0, 0);
+        while ((selectedPalettes & 1) == 0)
+        {
+            selectedPalettes >>= 1;
+            paletteIndex++;
+        }
+    }
+    else if (gBattleAnimArgs[0] == 1)
+    {
+        paletteIndex = gBattleAnimAttacker + 16;
+    }
+    else if (gBattleAnimArgs[0] == 2)
+    {
+        paletteIndex = gBattleAnimTarget + 16;
+    }
+
+    memcpy(&gPlttBufferUnfaded[paletteIndex * 16], &gPlttBufferFaded[paletteIndex * 16], 32);
+    DestroyAnimVisualTask(taskId);
+}
+
+void AnimTask_IsContest(u8 taskId)
+{
+    if (IsContest())
+        gBattleAnimArgs[7] = 1;
+    else
+        gBattleAnimArgs[7] = 0;
+
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_8117E94(u8 taskId)
+{
+    gBattleAnimAttacker = gBattlerTarget;
+    gBattleAnimTarget = gEffectBattler;
+    DestroyAnimVisualTask(taskId);
+}
+
+void AnimTask_IsTargetSameSide(u8 taskId)
+{
+    if (GetBattlerSide(gBattleAnimAttacker) == GetBattlerSide(gBattleAnimTarget))
+        gBattleAnimArgs[7] = 1;
+    else
+        gBattleAnimArgs[7] = 0;
+
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_8117F10(u8 taskId)
+{
+    gBattleAnimTarget = gBattlerTarget;
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_8117F30(u8 taskId)
+{
+    gBattleAnimAttacker = gBattlerAttacker;
+    gBattleAnimTarget = gEffectBattler;
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_8117F60(u8 taskId)
+{
+    if (IsContest())
+    {
+        DestroyAnimVisualTask(taskId);
+    }
+    else
+    {
+        gTasks[taskId].data[0] = gBattleSpritesDataPtr->battlerData[gBattleAnimAttacker].invisible;
+        gBattleSpritesDataPtr->battlerData[gBattleAnimAttacker].invisible = 1;
+        gTasks[taskId].func = sub_8117FD0;
+        gAnimVisualTaskCount--;
+    }
+}
+
+static void sub_8117FD0(u8 taskId)
+{
+    if (gBattleAnimArgs[7] == 0x1000)
+    {
+        gBattleSpritesDataPtr->battlerData[gBattleAnimAttacker].invisible = (u8)gTasks[taskId].data[0] & 1;
+        DestroyTask(taskId);
+    }
+}
diff --git a/src/battle_arena.c b/src/battle_arena.c
index 4b47dcaf1..c686ed791 100644
--- a/src/battle_arena.c
+++ b/src/battle_arena.c
@@ -22,9 +22,6 @@
 #include "constants/battle_frontier.h"
 #include "constants/moves.h"
 
-extern u16 gBattle_WIN0H;
-extern u16 gBattle_WIN0V;
-
 extern const u32 gUnknown_08D854E8[];
 extern const u16 gUnknown_08D855E8[];
 
diff --git a/src/battle_bg.c b/src/battle_bg.c
index bbe50cc70..51138040c 100644
--- a/src/battle_bg.c
+++ b/src/battle_bg.c
@@ -31,11 +31,6 @@ struct BattleBackground
     const void *palette;
 };
 
-extern u16 gBattle_BG1_X;
-extern u16 gBattle_BG1_Y;
-extern u16 gBattle_BG2_X;
-extern u16 gBattle_BG2_Y;
-
 extern u8 GetCurrentMapBattleScene(void);
 
 // .rodata
diff --git a/src/battle_controller_link_opponent.c b/src/battle_controller_link_opponent.c
index 0bf531c49..7589eb962 100644
--- a/src/battle_controller_link_opponent.c
+++ b/src/battle_controller_link_opponent.c
@@ -26,8 +26,6 @@
 #include "constants/songs.h"
 #include "constants/trainers.h"
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
 extern struct MusicPlayerInfo gMPlayInfo_BGM;
 extern struct UnusedControllerStruct gUnknown_02022D0C;
 
diff --git a/src/battle_controller_link_partner.c b/src/battle_controller_link_partner.c
index d84c1d296..04554a81b 100644
--- a/src/battle_controller_link_partner.c
+++ b/src/battle_controller_link_partner.c
@@ -26,8 +26,6 @@
 #include "constants/songs.h"
 #include "constants/trainers.h"
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
 extern struct UnusedControllerStruct gUnknown_02022D0C;
 
 extern const struct CompressedSpritePalette gTrainerFrontPicPaletteTable[];
diff --git a/src/battle_controller_opponent.c b/src/battle_controller_opponent.c
index 2daee71db..72dfb7e6b 100644
--- a/src/battle_controller_opponent.c
+++ b/src/battle_controller_opponent.c
@@ -33,8 +33,6 @@
 #include "constants/songs.h"
 #include "constants/trainers.h"
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
 extern struct MusicPlayerInfo gMPlayInfo_BGM;
 extern struct UnusedControllerStruct gUnknown_02022D0C;
 
diff --git a/src/battle_controller_player.c b/src/battle_controller_player.c
index 28657901f..3fabf25f8 100644
--- a/src/battle_controller_player.c
+++ b/src/battle_controller_player.c
@@ -37,8 +37,6 @@
 extern u8 gUnknown_0203CEE8;
 extern u8 gUnknown_0203CEE9;
 extern u8 gUnknown_0203CF00[];
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
 extern struct UnusedControllerStruct gUnknown_02022D0C;
 extern struct MusicPlayerInfo gMPlayInfo_BGM;
 
diff --git a/src/battle_controller_player_partner.c b/src/battle_controller_player_partner.c
index 26eb16ed5..0790cbbff 100644
--- a/src/battle_controller_player_partner.c
+++ b/src/battle_controller_player_partner.c
@@ -26,8 +26,6 @@
 #include "constants/songs.h"
 #include "constants/trainers.h"
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
 extern struct UnusedControllerStruct gUnknown_02022D0C;
 
 extern const struct CompressedSpritePalette gTrainerFrontPicPaletteTable[];
diff --git a/src/battle_controller_recorded_opponent.c b/src/battle_controller_recorded_opponent.c
index 3de09bb81..83c4965ea 100644
--- a/src/battle_controller_recorded_opponent.c
+++ b/src/battle_controller_recorded_opponent.c
@@ -28,8 +28,6 @@
 #include "constants/songs.h"
 #include "constants/trainers.h"
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
 extern struct MusicPlayerInfo gMPlayInfo_BGM;
 extern struct UnusedControllerStruct gUnknown_02022D0C;
 extern u8 gUnknown_0203C7B4;
diff --git a/src/battle_controller_recorded_player.c b/src/battle_controller_recorded_player.c
index 108542269..cbb46a940 100644
--- a/src/battle_controller_recorded_player.c
+++ b/src/battle_controller_recorded_player.c
@@ -25,8 +25,6 @@
 #include "constants/battle_anim.h"
 #include "constants/songs.h"
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
 extern u32 gTransformedPersonalities[MAX_BATTLERS_COUNT];
 extern u8 gUnknown_0203C7B4;
 extern struct MusicPlayerInfo gMPlayInfo_BGM;
diff --git a/src/battle_controller_safari.c b/src/battle_controller_safari.c
index a7ea04515..3f1542edb 100644
--- a/src/battle_controller_safari.c
+++ b/src/battle_controller_safari.c
@@ -23,9 +23,6 @@
 #include "constants/battle_anim.h"
 #include "constants/songs.h"
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
-
 extern const struct CompressedSpritePalette gTrainerBackPicPaletteTable[];
 
 extern void sub_81358F4(void);
diff --git a/src/battle_controller_wally.c b/src/battle_controller_wally.c
index a82d45fc4..922c5d80b 100644
--- a/src/battle_controller_wally.c
+++ b/src/battle_controller_wally.c
@@ -31,8 +31,6 @@
 #include "constants/songs.h"
 #include "constants/trainers.h"
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
 extern s32 gUnknown_0203CD70;
 extern struct UnusedControllerStruct gUnknown_02022D0C;
 
diff --git a/src/battle_dome.c b/src/battle_dome.c
index f0627e48d..c4cb24204 100644
--- a/src/battle_dome.c
+++ b/src/battle_dome.c
@@ -66,14 +66,6 @@ extern u16 GetFrontierBrainMonSpecies(u8);
 extern void ReducePlayerPartyToThree(void);
 
 extern u8 gUnknown_0203CEF8[];
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
-extern u16 gBattle_BG1_X;
-extern u16 gBattle_BG1_Y;
-extern u16 gBattle_BG2_X;
-extern u16 gBattle_BG2_Y;
-extern u16 gBattle_BG3_X;
-extern u16 gBattle_BG3_Y;
 
 extern const u16 gBattleFrontierHeldItems[];
 extern const struct FacilityMon gBattleFrontierMons[];
diff --git a/src/battle_main.c b/src/battle_main.c
index 97c0e26bb..4669e9123 100644
--- a/src/battle_main.c
+++ b/src/battle_main.c
@@ -69,18 +69,6 @@ struct UnknownPokemonStruct4
     /*0x1D*/ u8 language;
 };
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
-extern u16 gBattle_BG1_X;
-extern u16 gBattle_BG1_Y;
-extern u16 gBattle_BG2_X;
-extern u16 gBattle_BG2_Y;
-extern u16 gBattle_BG3_X;
-extern u16 gBattle_BG3_Y;
-extern u16 gBattle_WIN0H;
-extern u16 gBattle_WIN0V;
-extern u16 gBattle_WIN1H;
-extern u16 gBattle_WIN1V;
 extern struct MusicPlayerInfo gMPlayInfo_SE1;
 extern struct MusicPlayerInfo gMPlayInfo_SE2;
 extern u8 gUnknown_0203CF00[];
diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index 07ab81a02..5bd7de072 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -47,11 +47,6 @@
 #include "battle_pike.h"
 #include "battle_pyramid.h"
 
-extern u16 gBattle_BG1_X;
-extern u16 gBattle_BG1_Y;
-extern u16 gBattle_BG2_X;
-extern u16 gBattle_BG2_Y;
-extern u16 gBattle_BG3_X;
 extern struct MusicPlayerInfo gMPlayInfo_BGM;
 
 extern const u8* const gBattleScriptsForMoveEffects[];
diff --git a/src/battle_transition.c b/src/battle_transition.c
index 759f15eee..94b9e78f9 100644
--- a/src/battle_transition.c
+++ b/src/battle_transition.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "battle.h"
 #include "battle_transition.h"
 #include "bg.h"
 #include "decompress.h"
@@ -56,9 +57,6 @@ struct StructRectangularSpiral
 typedef bool8 (*TransitionStateFunc)(struct Task *task);
 typedef bool8 (*TransitionSpriteCallback)(struct Sprite *sprite);
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
-
 extern const struct OamData gEventObjectBaseOam_32x32;
 
 extern void sub_80AC3D0(void);
diff --git a/src/contest.c b/src/contest.c
index 76e13781c..0c3a041b0 100644
--- a/src/contest.c
+++ b/src/contest.c
@@ -193,19 +193,6 @@ EWRAM_DATA struct ContestWinner gUnknown_02039F3C = {0};
 
 u32 gContestRngValue;
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
-extern u16 gBattle_BG1_X;
-extern s16 gBattle_BG1_Y;
-extern u16 gBattle_BG2_X;
-extern u16 gBattle_BG2_Y;
-extern u16 gBattle_BG3_X;
-extern u16 gBattle_BG3_Y;
-extern u16 gBattle_WIN0H;
-extern u16 gBattle_WIN0V;
-extern u16 gBattle_WIN1H;
-extern u16 gBattle_WIN1V;
-
 extern const u16 gUnknown_08587C30[];
 extern const struct BgTemplate gUnknown_08587F34[4];
 extern const struct WindowTemplate gUnknown_08587F44[];
@@ -638,7 +625,8 @@ void sub_80D8108(u8 taskId)
             gTasks[taskId].data[0]++;
             break;
         case 1:
-            if ((gBattle_BG1_Y += 7) <= 160)
+            (s16)gBattle_BG1_Y += 7;
+            if ((s16)gBattle_BG1_Y <= 160)
                 break;
             gTasks[taskId].data[0]++;
             break;
@@ -1915,9 +1903,9 @@ void sub_80DA6B4(u8 taskId)
 void sub_80DA700(u8 taskId)
 {
     gBattle_BG1_Y -= 7;
-    if (gBattle_BG1_Y < 0)
+    if ((s16)gBattle_BG1_Y < 0)
         gBattle_BG1_Y = 0;
-    if (*(u16 *)&gBattle_BG1_Y == 0)  // Why cast?
+    if (gBattle_BG1_Y == 0)  // Why cast?
     {
         gTasks[taskId].func = sub_80DA740;
         gTasks[taskId].data[0] = 0;
diff --git a/src/evolution_scene.c b/src/evolution_scene.c
index c1d2ce59e..0d2072a15 100644
--- a/src/evolution_scene.c
+++ b/src/evolution_scene.c
@@ -41,15 +41,6 @@ struct EvoInfo
 static EWRAM_DATA struct EvoInfo *sEvoStructPtr = NULL;
 static EWRAM_DATA u16 *sEvoMovingBgPtr = NULL;
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
-extern u16 gBattle_BG1_X;
-extern u16 gBattle_BG1_Y;
-extern u16 gBattle_BG2_X;
-extern u16 gBattle_BG2_Y;
-extern u16 gBattle_BG3_X;
-extern u16 gBattle_BG3_Y;
-
 #define sEvoCursorPos           gBattleCommunication[1] // when learning a new move
 #define sEvoGraphicsTaskID      gBattleCommunication[2]
 
diff --git a/src/graphics.c b/src/graphics.c
index 005737035..7c28aa7b6 100644
--- a/src/graphics.c
+++ b/src/graphics.c
@@ -884,18 +884,18 @@ const u32 gBattleAnimSpritePalette_242[] = INCBIN_U32("graphics/battle_anims/spr
 const u32 gBattleAnimSpriteSheet_243[] = INCBIN_U32("graphics/battle_anims/sprites/243.4bpp.lz");
 const u32 gBattleAnimSpritePalette_243[] = INCBIN_U32("graphics/battle_anims/sprites/243.gbapal.lz");
 
-const u32 gUnknown_08C2D720[] = INCBIN_U32("graphics/battle_anims/masks/stat.4bpp.lz");
-const u32 gUnknown_08C2D930[] = INCBIN_U32("graphics/battle_anims/masks/stat_tilemap_1.bin.lz");
-const u32 gUnknown_08C2DA4C[] = INCBIN_U32("graphics/battle_anims/masks/stat_tilemap_2.bin.lz");
-
-const u32 gUnknown_08C2DB68[] = INCBIN_U32("graphics/battle_anims/masks/stat1.gbapal.lz");
-const u32 gUnknown_08C2DB88[] = INCBIN_U32("graphics/battle_anims/masks/stat2.gbapal.lz");
-const u32 gUnknown_08C2DBA8[] = INCBIN_U32("graphics/battle_anims/masks/stat3.gbapal.lz");
-const u32 gUnknown_08C2DBC8[] = INCBIN_U32("graphics/battle_anims/masks/stat4.gbapal.lz");
-const u32 gUnknown_08C2DBE8[] = INCBIN_U32("graphics/battle_anims/masks/stat5.gbapal.lz");
-const u32 gUnknown_08C2DC08[] = INCBIN_U32("graphics/battle_anims/masks/stat6.gbapal.lz");
-const u32 gUnknown_08C2DC28[] = INCBIN_U32("graphics/battle_anims/masks/stat7.gbapal.lz");
-const u32 gUnknown_08C2DC48[] = INCBIN_U32("graphics/battle_anims/masks/stat8.gbapal.lz");
+const u32 gBattleStatMask_Gfx[] = INCBIN_U32("graphics/battle_anims/masks/stat.4bpp.lz");
+const u32 gBattleStatMask1_Tilemap[] = INCBIN_U32("graphics/battle_anims/masks/stat_tilemap_1.bin.lz");
+const u32 gBattleStatMask2_Tilemap[] = INCBIN_U32("graphics/battle_anims/masks/stat_tilemap_2.bin.lz");
+
+const u32 gBattleStatMask1_Pal[] = INCBIN_U32("graphics/battle_anims/masks/stat1.gbapal.lz");
+const u32 gBattleStatMask2_Pal[] = INCBIN_U32("graphics/battle_anims/masks/stat2.gbapal.lz");
+const u32 gBattleStatMask3_Pal[] = INCBIN_U32("graphics/battle_anims/masks/stat3.gbapal.lz");
+const u32 gBattleStatMask4_Pal[] = INCBIN_U32("graphics/battle_anims/masks/stat4.gbapal.lz");
+const u32 gBattleStatMask5_Pal[] = INCBIN_U32("graphics/battle_anims/masks/stat5.gbapal.lz");
+const u32 gBattleStatMask6_Pal[] = INCBIN_U32("graphics/battle_anims/masks/stat6.gbapal.lz");
+const u32 gBattleStatMask7_Pal[] = INCBIN_U32("graphics/battle_anims/masks/stat7.gbapal.lz");
+const u32 gBattleStatMask8_Pal[] = INCBIN_U32("graphics/battle_anims/masks/stat8.gbapal.lz");
 
 const u32 gUnknown_08C2DC68[] = INCBIN_U32("graphics/battle_anims/masks/cure_bubbles.4bpp.lz");
 const u32 gUnknown_08C2DDA4[] = INCBIN_U32("graphics/battle_anims/masks/cure_bubbles.gbapal.lz");
diff --git a/src/reshow_battle_screen.c b/src/reshow_battle_screen.c
index 60580ef2d..7f2eb3746 100644
--- a/src/reshow_battle_screen.c
+++ b/src/reshow_battle_screen.c
@@ -16,15 +16,6 @@
 #include "battle_anim.h"
 #include "data2.h"
 
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG0_Y;
-extern u16 gBattle_BG1_X;
-extern u16 gBattle_BG1_Y;
-extern u16 gBattle_BG2_X;
-extern u16 gBattle_BG2_Y;
-extern u16 gBattle_BG3_X;
-extern u16 gBattle_BG3_Y;
-
 extern const union AnimCmd * const * const gMonAnimationsSpriteAnimsPtrTable[];
 
 extern void SetMultiuseSpriteTemplateToTrainerBack(u16 backPicId, u8 battlerPosition);
diff --git a/src/scanline_effect.c b/src/scanline_effect.c
index 148e053fc..a9ae9427b 100644
--- a/src/scanline_effect.c
+++ b/src/scanline_effect.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "battle.h"
 #include "data2.h"
 #include "task.h"
 #include "trig.h"
@@ -7,15 +8,6 @@
 static void CopyValue16Bit(void);
 static void CopyValue32Bit(void);
 
-extern u16 gBattle_BG0_Y;
-extern u16 gBattle_BG0_X;
-extern u16 gBattle_BG1_X;
-extern u16 gBattle_BG1_Y;
-extern u16 gBattle_BG2_X;
-extern u16 gBattle_BG2_Y;
-extern u16 gBattle_BG3_X;
-extern u16 gBattle_BG3_Y;
-
 // EWRAM vars
 
 // Per-scanline register values.
diff --git a/src/title_screen.c b/src/title_screen.c
index 40e0f5b2f..70a1a3449 100644
--- a/src/title_screen.c
+++ b/src/title_screen.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "battle.h"
 #include "title_screen.h"
 #include "sprite.h"
 #include "gba/m4a_internal.h"
@@ -37,8 +38,6 @@
 #define A_B_START_SELECT (A_BUTTON | B_BUTTON | START_BUTTON | SELECT_BUTTON)
 
 extern struct MusicPlayerInfo gMPlayInfo_BGM;
-extern u16 gBattle_BG1_X;
-extern u16 gBattle_BG1_Y;
 
 // this file's functions
 static void MainCB2(void);