#include "global.h"
#include "battle.h"
#include "battle_anim.h"
#include "palette.h"
#include "random.h"
#include "rom_8077ABC.h"
#include "scanline_effect.h"
#include "sound.h"
#include "trig.h"

extern s16 gBattleAnimArgs[];
extern u8 gAnimBankAttacker;
extern u8 gAnimBankTarget;
extern u8 gAnimVisualTaskCount;
extern s32 gAnimMoveDmg;
extern u16 gBattle_WIN0H;
extern u16 gBattle_WIN0V;
extern u16 gBattle_WIN1H;
extern u16 gBattle_WIN1V;
extern u16 gBattle_BG1_X;
extern u16 gBattle_BG2_X;

extern const struct SpriteTemplate gBattleAnimSpriteTemplate_83D7220;
extern const struct SpriteTemplate gSpriteTemplate_8402500;
extern const union AffineAnimCmd gUnknown_08402400[];
extern const union AffineAnimCmd gUnknown_084024B0[];
extern const union AffineAnimCmd gUnknown_08402518[];
extern const union AffineAnimCmd gUnknown_08402540[];
extern const union AffineAnimCmd gUnknown_08402590[];

extern u8 sub_8046234(s16 x, s16 y, u8 a3);

static void sub_812C184(struct Sprite *sprite);
static void sub_812C268(struct Sprite *sprite);
static void sub_812C2A4(struct Sprite *sprite);
static void sub_812C380(struct Sprite *sprite);
static void sub_812C40C(struct Sprite *sprite);
static void sub_812C450(struct Sprite *sprite);
static void sub_812C4FC(struct Sprite *sprite);
static void sub_812C588(u8 taskId);
static void sub_812C64C(u8 taskId);
static void sub_812C798(struct Sprite *sprite);
static void sub_812C7C8(struct Sprite *sprite);
static void sub_812CA04(struct Sprite *sprite);
static void sub_812CAD0(struct Sprite *sprite);
static void sub_812CBB4(struct Sprite *sprite);
static void sub_812CD64(struct Sprite *sprite);
static void sub_812CEF0(u8 taskId);
static void sub_812D06C(u8 taskId);
static void sub_812D254(struct Sprite *sprite);
static void sub_812D4EC(struct Sprite *sprite);
static void sub_812D5E8(struct Sprite *sprite);


void sub_812C144(struct Sprite *sprite)
{
    sprite->pos1.x += gBattleAnimArgs[0];
    sprite->pos1.y += gBattleAnimArgs[1];

    if (gBattleAnimArgs[3] == 0)
        sprite->data[0] = gBattleAnimArgs[2];
    else
        sprite->data[0] = -gBattleAnimArgs[2];

    sprite->data[1] = gBattleAnimArgs[4];
    sprite->callback = sub_812C184;
}

static void sub_812C184(struct Sprite *sprite)
{
    if (sprite->data[1] > 0)
    {
        sprite->pos2.x = sprite->data[2] >> 8;
        sprite->data[2] += sprite->data[0];
        sprite->invisible ^= 1;
        sprite->data[1]--;
    }
    else
    {
        DestroyAnimSprite(sprite);
    }
}

void sub_812C1D0(u8 taskId)
{
    sub_8046234(
        GetBattlerSpriteCoord(gAnimBankTarget, 2) + 8,
        GetBattlerSpriteCoord(gAnimBankTarget, 3) + 8,
        0);
    DestroyAnimVisualTask(taskId);

}

void sub_812C220(struct Sprite *sprite)
{
    sprite->data[0] = 90;
    sprite->callback = WaitAnimForDuration;
    sprite->data[1] = 7;
    StoreSpriteCallbackInData(sprite, sub_812C268);
    REG_BLDCNT = 0x3F40;
    REG_BLDALPHA = ((16 - sprite->data[1]) << 8) | sprite->data[1];
}

static void sub_812C268(struct Sprite *sprite)
{
    REG_BLDALPHA = ((16 - sprite->data[1]) << 8) | sprite->data[1];
    if (--sprite->data[1] < 0)
    {
        sprite->invisible = 1;
        sprite->callback = sub_812C2A4;
    }
}

static void sub_812C2A4(struct Sprite *sprite)
{
    REG_BLDCNT = 0;
    REG_BLDALPHA = 0;
    DestroyAnimSprite(sprite);
}

void sub_812C2BC(struct Sprite *sprite)
{
    u16 rotation;
    u8 x = GetBattlerSpriteCoord(gAnimBankTarget, 2);
    u8 y = GetBattlerSpriteCoord(gAnimBankTarget, 3);

    sub_8078764(sprite, 1);

    rotation = ArcTan2Neg(sprite->pos1.x - x, sprite->pos1.y - y);
    rotation += 0x6000;
    if (IsContest())
        rotation += 0x4000;

    sub_8078FDC(sprite, 0, 0x100, 0x100, rotation);

    sprite->data[0] = gBattleAnimArgs[2];
    sprite->data[2] = x;
    sprite->data[4] = y;
    sprite->callback = StartTranslateAnimSpriteByDeltas;
    StoreSpriteCallbackInData(sprite, DestroyAnimSprite);
}

void sub_812C358(struct Sprite *sprite)
{
    REG_BLDCNT = 0x3F40;
    REG_BLDALPHA = 0x1000;
    sprite->data[0] = 4;
    sprite->callback = sub_812C380;
}

static void sub_812C380(struct Sprite *sprite)
{
    REG_BLDALPHA = ((16 - sprite->data[0]) << 8) | sprite->data[0];

    if (sprite->data[1])
        sprite->data[0]--;
    else
        sprite->data[0]++;

    if (sprite->data[0] == 15 || sprite->data[0] == 4)
        sprite->data[1] ^= 1;

    if (sprite->data[2]++ > 70)
    {
        REG_BLDCNT = 0;
        REG_BLDALPHA = 0;
        StartSpriteAffineAnim(sprite, 1);
        sprite->data[2] = 0;
        sprite->invisible = 1;
        sprite->affineAnimPaused = 1;
        sprite->callback = sub_812C40C;
    }
}

static void sub_812C40C(struct Sprite *sprite)
{
    if (sprite->data[2]++ > 9)
    {
        sprite->invisible = 0;
        sprite->affineAnimPaused = 0;
        if (sprite->affineAnimEnded)
            sprite->callback = sub_812C450;
    }
}

static void sub_812C450(struct Sprite *sprite)
{
    switch (sprite->data[3])
    {
    case 0:
    case 1:
        sprite->pos2.x = 1;
        sprite->pos2.y = 0;
        break;
    case 2:
    case 3:
        sprite->pos2.x = -1;
        sprite->pos2.y = 0;
        break;
    case 4:
    case 5:
        sprite->pos2.x = 0;
        sprite->pos2.y = 1;
        break;
    case 6:
    default:
        sprite->pos2.x = 0;
        sprite->pos2.y = -1;
        break;
    }

    if (++sprite->data[3] > 7)
        sprite->data[3] = 0;

    if (sprite->data[4]++ > 15)
    {
        sprite->data[0] = 16;
        sprite->data[1] = 0;
        REG_BLDCNT = 0x3F40;
        REG_BLDALPHA = sprite->data[0];
        sprite->callback = sub_812C4FC;
    }
}

static void sub_812C4FC(struct Sprite *sprite)
{
    REG_BLDALPHA = ((16 - sprite->data[0]) << 8) | sprite->data[0];

    if (sprite->data[1]++ > 1)
    {
        sprite->data[0]--;
        sprite->data[1] = 0;
    }

    if (sprite->data[0] == 0)
        sprite->invisible = 1;

    if (sprite->data[0] < 0)
    {
        REG_BLDCNT = 0;
        REG_BLDALPHA = 0;
        DestroyAnimSprite(sprite);
    }
}

void sub_812C560(u8 taskId)
{
    gTasks[taskId].func = sub_812C588;
    gAnimVisualTaskCount--;
}

static void sub_812C588(u8 taskId)
{
    int i;
    u16 lastColor;
    u8 paletteIndex = sub_80789BC();

    if (++gTasks[taskId].data[5] == 4)
    {
        lastColor = gPlttBufferFaded[paletteIndex * 16 + 11];
        for (i = 10; i > 0; i--)
            gPlttBufferFaded[paletteIndex * 16 + i + 1] = gPlttBufferFaded[paletteIndex * 16 + i];

        gPlttBufferFaded[paletteIndex * 16 + 1] = lastColor;
        gTasks[taskId].data[5] = 0;
    }

    if ((u16)gBattleAnimArgs[7] == 0xFFFF)
        DestroyTask(taskId);
}

void sub_812C624(u8 taskId)
{
    gTasks[taskId].func = sub_812C64C;
    gAnimVisualTaskCount--;
}

static void sub_812C64C(u8 taskId)
{
    int i;
    u16 lastColor;
    u8 paletteIndex = sub_80789BC();

    if (++gTasks[taskId].data[5] == 4)
    {
        lastColor = gPlttBufferFaded[paletteIndex * 16 + 11];
        for (i = 10; i > 0; i--)
            gPlttBufferFaded[paletteIndex * 16 + i + 1] = gPlttBufferFaded[paletteIndex * 16 + i];
        gPlttBufferFaded[paletteIndex * 16 + 1] = lastColor;

        lastColor = gPlttBufferUnfaded[paletteIndex * 16 + 11];
        for (i = 10; i > 0; i--)
            gPlttBufferUnfaded[paletteIndex * 16 + i + 1] = gPlttBufferUnfaded[paletteIndex * 16 + i];
        gPlttBufferUnfaded[paletteIndex * 16 + 1] = lastColor;

        gTasks[taskId].data[5] = 0;
    }

    if ((u16)gBattleAnimArgs[7] == 0xFFFF)
        DestroyTask(taskId);
}

void sub_812C720(struct Sprite *sprite)
{
    u16 x;
    u16 y;

    InitAnimSpritePos(sprite, 1);
    SetAverageBattlerPositions(gAnimBankTarget, 0, &x, &y);

    if (GetBattlerSide(gAnimBankAttacker) != B_SIDE_PLAYER)
        gBattleAnimArgs[2] = -gBattleAnimArgs[2];

    sprite->data[0] = gBattleAnimArgs[4];
    sprite->data[2] = x + gBattleAnimArgs[2];
    sprite->data[4] = y + gBattleAnimArgs[3];
    sprite->data[5] = -50;

    InitAnimSpriteTranslationOverDuration(sprite);
    sprite->callback = sub_812C798;
}

static void sub_812C798(struct Sprite *sprite)
{
    if (TranslateAnimSpriteLinearAndSine(sprite))
    {
        sprite->data[0] = 30;
        sprite->data[1] = 0;
        sprite->callback = WaitAnimForDuration;
        StoreSpriteCallbackInData(sprite, sub_812C7C8);
    }
}

static void sub_812C7C8(struct Sprite *sprite)
{
    if (sprite->data[1] & 1)
        sprite->invisible ^= 1;

    if (++sprite->data[1] == 16)
        DestroyAnimSprite(sprite);
}

void sub_812C80C(struct Sprite *sprite)
{
    sub_8078650(sprite);
    sub_807867C(sprite, gBattleAnimArgs[0]);
    sprite->pos1.y += gBattleAnimArgs[1];
    sprite->callback = sub_8078600;
    StoreSpriteCallbackInData(sprite, DestroyAnimSprite);
}

// This is likely fakematching due to some strange type casting behavior.
void sub_812C848(struct Sprite *sprite)
{
    int var0;
    int var1;
    if (sprite->data[0] == 0)
    {
        sub_8078650(sprite);
        sub_807867C(sprite, gBattleAnimArgs[0]);

        if (!IsContest())
        {
            if (GetBattlerSide(gAnimBankAttacker) == B_SIDE_PLAYER)
            {
                sprite->data[1] = gBattleAnimArgs[2];
                sprite->data[2] = gBattleAnimArgs[3];
            }
            else
            {
                var1 = -gBattleAnimArgs[2];
                sprite->data[1] = var1;
                var1 = -gBattleAnimArgs[3];
                sprite->data[2] = var1;
            }
        }
        else
        {
            var1 = -gBattleAnimArgs[2];
            sprite->data[1] = var1;
            sprite->data[2] = gBattleAnimArgs[3];
        }
    }

    sprite->data[0]++;
    var0 = (sprite->data[0] * 20) & 0xFF;
    sprite->data[3] += sprite->data[1];
    sprite->data[4] += sprite->data[2];
    sprite->pos2.x = (sprite->data[3] + (s32)((u32)sprite->data[3] >> 31)) >> 1;
    sprite->pos2.y = Sin(var0 & 0xFF, 5) + ((s32)(sprite->data[4] + ((u32)sprite->data[4] >> 31)) >> 1);

    if ((u16)(sprite->pos1.x + sprite->pos2.x) > 240)
        DestroyAnimSprite(sprite);
}

void sub_812C908(struct Sprite *sprite)
{
    if (sprite->animEnded)
        DestroyAnimSprite(sprite);
}

void sub_812C924(u8 taskId)
{
    if (GetBattlerSide(gAnimBankTarget) == B_SIDE_OPPONENT)
        gBattleAnimArgs[7] = 0;
    else
        gBattleAnimArgs[7] = 1;

    DestroyAnimVisualTask(taskId);
}

void sub_812C960(u8 taskId)
{
    if (gAnimMoveDmg > 0)
        gBattleAnimArgs[7] = 0;
    else
        gBattleAnimArgs[7] = 1;

    DestroyAnimVisualTask(taskId);
}

void sub_812C990(struct Sprite *sprite)
{
    REG_WINOUT = 0x1F3F;
    REG_DISPCNT |= DISPCNT_OBJWIN_ON;
    gBattle_WIN0H = 0;
    gBattle_WIN0V = 0;
    REG_WIN0H = 0;
    REG_WIN0V = 0;

    sub_8078764(sprite, 0);

    sprite->oam.objMode = ST_OAM_OBJ_WINDOW;
    sprite->invisible = 1;
    sprite->callback = sub_812CA04;
}

static void sub_812CA04(struct Sprite *sprite)
{
    switch (sprite->data[0])
    {
    case 0:
        sprite->invisible = 0;
        if (sprite->affineAnimEnded)
            sprite->data[0]++;
        break;
    case 1:
    case 3:
        sprite->data[1] += 117;
        sprite->pos2.x = sprite->data[1] >> 8;
        if (++sprite->data[2] == 21)
        {
            sprite->data[2] = 0;
            sprite->data[0]++;
        }
        break;
    case 2:
        sprite->data[1] -= 117;
        sprite->pos2.x = sprite->data[1] >> 8;
        if (++sprite->data[2] == 41)
        {
            sprite->data[2] = 0;
            sprite->data[0]++;
        }
        break;
    case 4:
        ChangeSpriteAffineAnim(sprite, 1);
        sprite->data[0]++;
        break;
    case 5:
        if (sprite->affineAnimEnded)
        {
            sprite->invisible = 1;
            sprite->callback = sub_812CAD0;
        }
        break;
    }
}

static void sub_812CAD0(struct Sprite *sprite)
{
    REG_WINOUT = 0x3F3F;
    REG_DISPCNT ^= DISPCNT_OBJWIN_ON;
    DestroyAnimSprite(sprite);
}

void sub_812CAFC(struct Sprite *sprite)
{
    if (gBattleAnimArgs[3] == 0)
    {
        sprite->pos1.x = GetBattlerSpriteCoord(gAnimBankAttacker, 0);
        sprite->pos1.y = GetBattlerSpriteCoord(gAnimBankAttacker, 1);
    }

    sprite->pos1.x += gBattleAnimArgs[0];
    sprite->pos1.y += gBattleAnimArgs[1];
    sprite->oam.tileNum += 16;

    if (gBattleAnimArgs[2] == 0)
    {
        sprite->oam.matrixNum = 8;
        sprite->pos2.x = -12;
        sprite->data[1] = 2;
    }
    else
    {
        sprite->pos2.x = 12;
        sprite->data[1] = -2;
    }

    sprite->data[0] = gBattleAnimArgs[4];

    if (sprite->data[3] != 255)
        sprite->data[3] = gBattleAnimArgs[2];

    sprite->callback = sub_812CBB4;
}

static void sub_812CBB4(struct Sprite *sprite)
{
    if (sprite->data[2] == 0)
    {
        sprite->pos2.x += sprite->data[1];
        if (sprite->pos2.x == 0)
        {
            sprite->data[2]++;
            if (sprite->data[3] == 0)
            {
                PlaySE1WithPanning(222, BattleAnimAdjustPanning(-64));
            }
        }
    }
    else
    {
        sprite->pos2.x -= sprite->data[1];
        if (abs(sprite->pos2.x) == 12)
        {
            sprite->data[0]--;
            sprite->data[2]--;
        }

    }

    if (sprite->data[0] == 0)
        DestroyAnimSprite(sprite);
}

void sub_812CC28(struct Sprite *sprite)
{
    sprite->oam.objMode = ST_OAM_OBJ_WINDOW;
    sprite->data[3] = 255;
    sub_812CAFC(sprite);
}

void sub_812CC44(u8 taskId)
{
    if (IsContest())
    {
        REG_WININ = 0x1F3F;
        gBattle_WIN1H = 0x98F0;
        gBattle_WIN1V = 0x00A0;
        REG_WIN1H = gBattle_WIN0H;
        REG_WIN1V = gBattle_WIN0V;
    }

    DestroyAnimVisualTask(taskId);
}

void sub_812CCA8(u8 taskId)
{
    if (IsContest())
    {
        REG_WININ = 0x3F3F;
        gBattle_WIN1H = 0;
        gBattle_WIN1V = 0;
    }

    DestroyAnimVisualTask(taskId);
}

void sub_812CCE8(struct Sprite *sprite)
{
    int var0;
    if (gBattleAnimArgs[0] == 0)
    {
        sprite->pos1.x = GetBattlerSpriteCoord(gAnimBankAttacker, 0) + gBattleAnimArgs[1];
        sprite->pos1.y = GetBattlerSpriteCoord(gAnimBankAttacker, 1);
    }
    else
    {
        sprite->pos1.x = GetBattlerSpriteCoord(gAnimBankTarget, 0) + gBattleAnimArgs[1];
        sprite->pos1.y = GetBattlerSpriteCoord(gAnimBankTarget, 1);
    }

    sprite->pos2.y = gBattleAnimArgs[2];
    var0 = 0;
    if (sprite->pos2.y > gBattleAnimArgs[3])
        var0 = 1;

    sprite->data[0] = var0;
    sprite->data[1] = 0;
    sprite->data[2] = gBattleAnimArgs[4];
    sprite->data[3] = gBattleAnimArgs[5];
    sprite->data[4] = gBattleAnimArgs[3];
    sprite->callback = sub_812CD64;
}

static void sub_812CD64(struct Sprite *sprite)
{
    sprite->data[1] = (sprite->data[1] + sprite->data[2]) & 0xFF;
    sprite->pos2.x = gSineTable[sprite->data[1]] >> 4;
    sprite->pos2.y += sprite->data[3];

    if (sprite->data[0])
    {
        if (sprite->pos2.y < sprite->data[4])
            DestroyAnimSprite(sprite);
    }
    else
    {
        if (sprite->pos2.y > sprite->data[4])
            DestroyAnimSprite(sprite);
    }
}

void sub_812CDC8(u8 taskId)
{
    s16 var0;
    u8 toBG2;
    s16 var2;
    int var3;
    int var4;
    s16 i;
    struct ScanlineEffectParams scanlineParams;
    struct Task *task = &gTasks[taskId];

    if (gBattleAnimArgs[0] == 0)
    {
        var0 = sub_8077FC0(gAnimBankAttacker);
        toBG2 = GetBattlerPosition_permutated(gAnimBankAttacker);
    }
    else
    {
        var0 = sub_8077FC0(gAnimBankTarget);
        toBG2 = GetBattlerPosition_permutated(gAnimBankTarget);
    }

    task->data[0] = var0 + 36;
    task->data[1] = task->data[0];
    task->data[2] = var0 - 33;
    if (task->data[2] < 0)
        task->data[2] = 0;

    task->data[3] = task->data[0];
    task->data[4] = 8;
    task->data[5] = gBattleAnimArgs[1];
    task->data[6] = 0;
    task->data[7] = 0;

    if (toBG2 == 1)
    {
        var3 = gBattle_BG1_X;
        task->data[8] = var3;
        var4 = var3 + 240;
    }
    else
    {
        var3 = gBattle_BG2_X;
        task->data[8] = var3;
        var4 = var3 + 240;
    }

    task->data[9] = var4;
    task->data[10] = gBattleAnimArgs[2];

    if (gBattleAnimArgs[2] == 0)
    {
        task->data[11] = var4;
        var2 = task->data[8];
    }
    else
    {
        task->data[11] = var3;
        var2 = task->data[9];
    }

    task->data[15] = 0;

    i = task->data[2];
    while (i <= task->data[3])
    {
        gScanlineEffectRegBuffers[0][i] = var2;
        gScanlineEffectRegBuffers[1][i] = var2;
        i++;
    }

    if (toBG2 == 1)
        scanlineParams.dmaDest = &REG_BG1HOFS;
    else
        scanlineParams.dmaDest = &REG_BG2HOFS;

    scanlineParams.dmaControl = 0xA2600001;
    scanlineParams.initState = 1;
    scanlineParams.unused9 = 0;
    ScanlineEffect_SetParams(scanlineParams);

    task->func = sub_812CEF0;
}

static void sub_812CEF0(u8 taskId)
{
    s16 i;
    struct Task *task = &gTasks[taskId];

    task->data[0] -= task->data[5];
    if (task->data[0] < task->data[2])
        task->data[0] = task->data[2];

    if (task->data[4] == 0)
    {
        task->data[1] -= task->data[5];
        if (task->data[1] < task->data[2])
        {
            task->data[1] = task->data[2];
            task->data[15] = 1;
        }
    }
    else
    {
        task->data[4]--;
    }

    if (++task->data[6] > 1)
    {
        task->data[6] = 0;
        task->data[7] = task->data[7] == 0 ? 1 : 0;

        if (task->data[7])
            task->data[12] = task->data[8];
        else
            task->data[12] = task->data[9];        
    }

    i = task->data[0];
    while (i < task->data[1])
    {
        gScanlineEffectRegBuffers[0][i] = task->data[12];
        gScanlineEffectRegBuffers[1][i] = task->data[12];
        i++;
    }

    i = task->data[1];
    while (i <= task->data[3])
    {
        gScanlineEffectRegBuffers[0][i] = task->data[11];
        gScanlineEffectRegBuffers[1][i] = task->data[11];
        i++;
    }

    if (task->data[15])
    {
        if (task->data[10])
            gScanlineEffect.state = 3;

        DestroyAnimVisualTask(taskId);
    }
}

void sub_812D008(u8 taskId)
{
    struct Task *task = &gTasks[taskId];

    task->data[0] = 0;
    task->data[1] = 0;
    task->data[2] = GetBattlerSpriteCoord(gAnimBankAttacker, 2);
    task->data[3] = GetBattlerSpriteCoord(gAnimBankAttacker, 3);
    task->data[4] = 32;
    task->data[5] = -20;
    task->data[6] = 0;
    task->data[15] = GetAnimBattlerSpriteId(0);
    task->func = sub_812D06C;
}

static void sub_812D06C(u8 taskId)
{
    int var0, var1;
    s16 x, y;
    u16 i, j;
    u8 spriteId;
    struct Task *task = &gTasks[taskId];

    switch (task->data[0])
    {
    case 0:
        var0 = task->data[2];
        if (task->data[1] & 1)
        {
            var1 = task->data[4];
            x = var0 - var1;
        }
        else
        {
            var1 = task->data[4];
            x = var0 + var1;
        }

        y = task->data[3] + task->data[5];
        spriteId = CreateSprite(&gBattleAnimSpriteTemplate_83D7220, x, y, 6 - task->data[1]);
        PlaySE12WithPanning(186, BattleAnimAdjustPanning(-64));

        if (spriteId != MAX_SPRITES)
        {
            gSprites[spriteId].hFlip = task->data[1] & 1;
            gSprites[spriteId].callback = SpriteCallbackDummy;
        }

        if (task->data[1] & 1)
        {
            task->data[4] -= 6;
            task->data[5] -= 6;
        }

        sub_80798F4(task, task->data[15], gUnknown_08402400);
        task->data[1]++;
        task->data[0] = 1;
        break;
    case 1:
        if (sub_807992C(task) == 0)
        {
            if (task->data[1] == 6)
            {
                task->data[6] = 8;
                task->data[0] = 3;
            }
            else
            {
                if (task->data[1] <= 2)
                    task->data[6] = 10;
                else
                    task->data[6] = 0;

                task->data[0] = 2;
            }
        }
        break;
    case 2:
        if (task->data[6] != 0)
            task->data[6]--;
        else
            task->data[0] = 0;
        break;
    case 3:
        if (task->data[6] != 0)
            task->data[6]--;
        else
            task->data[0] = 4;
        break;
    case 4:
        for (i = 0, j = 0; i < MAX_SPRITES; i++)
        {
            if (gSprites[i].template == &gBattleAnimSpriteTemplate_83D7220)
            {
                gSprites[i].data[0] = taskId;
                gSprites[i].data[1] = 6;
                StartSpriteAnim(&gSprites[i], 2);
                gSprites[i].callback = sub_812D254;

                if (++j == 6)
                    break;
            }
        }

        task->data[6] = j;
        task->data[0] = 5;
        break;
    case 5:
        if (task->data[6] == 0)
            DestroyAnimVisualTask(taskId);
        break;
    }
}

static void sub_812D254(struct Sprite *sprite)
{
    if (sprite->animEnded)
    {
        gTasks[sprite->data[0]].data[sprite->data[1]]--;
        DestroySprite(sprite);
    }
}

void sub_812D294(struct Sprite *sprite)
{
    if (sprite->data[0] == 0)
        InitAnimSpritePos(sprite, 0);

    sprite->data[0]++;
    if (sprite->data[0] < 40)
    {
        u16 var = sprite->data[0];
        if ((var & 1) == 0)
            sprite->invisible = 1;
        else
            sprite->invisible = 0;
    }

    if (sprite->data[0] > 30)
        sprite->invisible = 0;

    if (sprite->data[0] == 61)
    {
        StoreSpriteCallbackInData(sprite, DestroyAnimSprite);
        sprite->pos1.x += sprite->pos2.x;
        sprite->pos1.y += sprite->pos2.y;
        sprite->pos2.x = 0;
        sprite->pos2.y = 0;
        sprite->data[0] = 20;
        sprite->data[2] = GetBattlerSpriteCoord(gAnimBankTarget, 2);
        sprite->data[4] = GetBattlerSpriteCoord(gAnimBankTarget, 3);
        sprite->callback = StartTranslateAnimSpriteByDeltas;
    }
}

void sub_812D350(u8 taskId)
{
    switch (gTasks[taskId].data[0])
    {
    case 0:
        sub_80798F4(&gTasks[taskId], GetAnimBattlerSpriteId(0), &gUnknown_084024B0);
        gTasks[taskId].data[0]++;
        break;
    case 1:
        if (sub_807992C(&gTasks[taskId]) == 0)
            DestroyAnimVisualTask(taskId);
        break;
    }
}

void sub_812D3AC(struct Sprite *sprite)
{
    u8 spriteId = GetAnimBattlerSpriteId(0);

    switch (sprite->data[0])
    {
    case 0:
        sprite->pos1.x = GetBattlerSpriteCoord(gAnimBankAttacker, 2);
        sprite->pos1.y = GetBattlerSpriteCoord(gAnimBankAttacker, 3);
        sub_8078E70(spriteId, 0);
        sprite->data[1] = 256;
        sprite->data[2] = 256;
        sprite->data[0]++;
        break;
    case 1:
        sprite->data[1] += 96;
        sprite->data[2] -= 26;
        obj_id_set_rotscale(spriteId, sprite->data[1], sprite->data[2], 0);

        if (++sprite->data[3] == 5)
            sprite->data[0]++;
        // fall through
    case 2:
        sprite->data[1] += 96;
        sprite->data[2] += 48;
        obj_id_set_rotscale(spriteId, sprite->data[1], sprite->data[2], 0);

        if (++sprite->data[3] == 9)
        {
            sprite->data[3] = 0;
            gSprites[spriteId].invisible = 1;
            sub_8078F40(spriteId);
            sprite->data[0]++;
        }
        break;
    case 3:
        sprite->pos2.y -= 6;
        if (sprite->pos1.y + sprite->pos2.y < -32)
            DestroyAnimSprite(sprite);
        break;
    }
}

void sub_812D4B4(struct Sprite *sprite)
{
    if (GetBattlerSide(gAnimBankAttacker) != B_SIDE_PLAYER)
        sprite->pos1.x = -16;
    else
        sprite->pos1.x = 256;

    sprite->pos1.y = 0;
    sprite->callback = sub_812D4EC;
}

static void sub_812D4EC(struct Sprite *sprite)
{
    u32 newX;

    sprite->data[0] += 72;
    if (GetBattlerSide(gAnimBankAttacker) != B_SIDE_PLAYER)
        sprite->pos2.x = sprite->data[0] >> 4;
    else
        sprite->pos2.x = -(sprite->data[0] >> 4);

    sprite->data[1] += 16;
    sprite->pos2.y += sprite->data[1] >> 8;

    if (++sprite->data[2] % 3 == 0)
    {
        CreateSpriteAndAnimate(
            &gSpriteTemplate_8402500,
            sprite->pos1.x + sprite->pos2.x,
            sprite->pos1.y + sprite->pos2.y,
            sprite->subpriority + 1);
    }

    newX = sprite->pos1.x + sprite->pos2.x + 32;
    if (newX > 304)
        DestroyAnimSprite(sprite);
}

void sub_812D588(struct Sprite *sprite)
{
    u8 rand;
    s8 y;

    rand = Random() & 3;
    if (rand == 0)
        sprite->oam.tileNum += 4;
    else
        sprite->oam.tileNum += 5;

    y = Random() & 7;
    if (y > 3)
        y = -y;

    sprite->pos2.y = y;
    sprite->callback = sub_812D5E8;
}

static void sub_812D5E8(struct Sprite *sprite)
{
    if (++sprite->data[0] < 30)
    {
        if (++sprite->data[1] == 2)
        {
            sprite->invisible ^= 1;
            sprite->data[1] = 0;
        }
    }
    else
    {
        if (sprite->data[1] == 2)
            sprite->invisible = 0;

        if (sprite->data[1] == 3)
        {
            sprite->invisible = 1;
            sprite->data[1] = -1;
        }

        sprite->data[1]++;
    }

    if (sprite->data[0] > 60)
        DestroySprite(sprite);
}

void sub_812D674(u8 taskId)
{
    if (gTasks[taskId].data[0] == 0)
    {
        sub_80798F4(&gTasks[taskId], GetAnimBattlerSpriteId(0), &gUnknown_08402518);
        gTasks[taskId].data[0]++;
    }
    else
    {
        if (sub_807992C(&gTasks[taskId]) == 0)
            DestroyAnimVisualTask(taskId);
    }
}

void sub_812D6CC(u8 taskId)
{
    if (gTasks[taskId].data[0] == 0)
    {
        sub_80798F4(&gTasks[taskId], GetAnimBattlerSpriteId(0), &gUnknown_08402540);
        gTasks[taskId].data[0]++;
    }
    else
    {
        if (sub_807992C(&gTasks[taskId]) == 0)
            DestroyAnimVisualTask(taskId);
    }
}

void sub_812D724(struct Sprite *sprite)
{
    switch (sprite->data[0])
    {
    case 0:
        InitAnimSpritePos(sprite, 0);
        sprite->data[1] = 0x900;
        sprite->data[2] = GetBattlerSpriteCoord(gAnimBankAttacker, 3);
        sprite->data[0]++;
        break;
    case 1:
        sprite->pos2.y -= sprite->data[1] >> 8;
        sprite->data[1] -= 96;
        if (sprite->pos1.y + sprite->pos2.y > sprite->data[2])
            DestroyAnimSprite(sprite);
        break;
    }
}

void sub_812D790(u8 taskId)
{
    if (gTasks[taskId].data[0] == 0)
    {
        sub_80798F4(&gTasks[taskId], GetAnimBattlerSpriteId(0), &gUnknown_08402590);
        gTasks[taskId].data[0]++;
    }
    else
    {
        if (sub_807992C(&gTasks[taskId]) == 0)
            DestroyAnimVisualTask(taskId);
    }
}