#include "global.h"
#include "battle.h"
#include "battle_ai_main.h"
#include "battle_ai_util.h"
#include "battle_anim.h"
#include "battle_controllers.h"
#include "battle_message.h"
#include "battle_interface.h"
#include "battle_setup.h"
#include "battle_tower.h"
#include "battle_z_move.h"
#include "bg.h"
#include "data.h"
#include "item_use.h"
#include "link.h"
#include "main.h"
#include "m4a.h"
#include "palette.h"
#include "party_menu.h"
#include "pokeball.h"
#include "pokemon.h"
#include "reshow_battle_screen.h"
#include "sound.h"
#include "string_util.h"
#include "task.h"
#include "text.h"
#include "util.h"
#include "window.h"
#include "constants/battle_anim.h"
#include "constants/songs.h"
#include "constants/party_menu.h"
#include "constants/trainers.h"

static void PlayerPartnerHandleGetMonData(void);
static void PlayerPartnerHandleGetRawMonData(void);
static void PlayerPartnerHandleSetMonData(void);
static void PlayerPartnerHandleSetRawMonData(void);
static void PlayerPartnerHandleLoadMonSprite(void);
static void PlayerPartnerHandleSwitchInAnim(void);
static void PlayerPartnerHandleReturnMonToBall(void);
static void PlayerPartnerHandleDrawTrainerPic(void);
static void PlayerPartnerHandleTrainerSlide(void);
static void PlayerPartnerHandleTrainerSlideBack(void);
static void PlayerPartnerHandleFaintAnimation(void);
static void PlayerPartnerHandlePaletteFade(void);
static void PlayerPartnerHandleSuccessBallThrowAnim(void);
static void PlayerPartnerHandleBallThrowAnim(void);
static void PlayerPartnerHandlePause(void);
static void PlayerPartnerHandleMoveAnimation(void);
static void PlayerPartnerHandlePrintString(void);
static void PlayerPartnerHandlePrintSelectionString(void);
static void PlayerPartnerHandleChooseAction(void);
static void PlayerPartnerHandleYesNoBox(void);
static void PlayerPartnerHandleChooseMove(void);
static void PlayerPartnerHandleChooseItem(void);
static void PlayerPartnerHandleChoosePokemon(void);
static void PlayerPartnerHandleCmd23(void);
static void PlayerPartnerHandleHealthBarUpdate(void);
static void PlayerPartnerHandleExpUpdate(void);
static void PlayerPartnerHandleStatusIconUpdate(void);
static void PlayerPartnerHandleStatusAnimation(void);
static void PlayerPartnerHandleStatusXor(void);
static void PlayerPartnerHandleDataTransfer(void);
static void PlayerPartnerHandleDMA3Transfer(void);
static void PlayerPartnerHandlePlayBGM(void);
static void PlayerPartnerHandleCmd32(void);
static void PlayerPartnerHandleTwoReturnValues(void);
static void PlayerPartnerHandleChosenMonReturnValue(void);
static void PlayerPartnerHandleOneReturnValue(void);
static void PlayerPartnerHandleOneReturnValue_Duplicate(void);
static void PlayerPartnerHandleClearUnkVar(void);
static void PlayerPartnerHandleSetUnkVar(void);
static void PlayerPartnerHandleClearUnkFlag(void);
static void PlayerPartnerHandleToggleUnkFlag(void);
static void PlayerPartnerHandleHitAnimation(void);
static void PlayerPartnerHandleCantSwitch(void);
static void PlayerPartnerHandlePlaySE(void);
static void PlayerPartnerHandlePlayFanfareOrBGM(void);
static void PlayerPartnerHandleFaintingCry(void);
static void PlayerPartnerHandleIntroSlide(void);
static void PlayerPartnerHandleIntroTrainerBallThrow(void);
static void PlayerPartnerHandleDrawPartyStatusSummary(void);
static void PlayerPartnerHandleHidePartyStatusSummary(void);
static void PlayerPartnerHandleEndBounceEffect(void);
static void PlayerPartnerHandleSpriteInvisibility(void);
static void PlayerPartnerHandleBattleAnimation(void);
static void PlayerPartnerHandleLinkStandbyMsg(void);
static void PlayerPartnerHandleResetActionMoveSelection(void);
static void PlayerPartnerHandleEndLinkBattle(void);
static void PlayerPartnerHandleBattleDebug(void);
static void PlayerPartnerCmdEnd(void);

static void PlayerPartnerBufferRunCommand(void);
static void PlayerPartnerBufferExecCompleted(void);
static void Task_LaunchLvlUpAnim(u8 taskId);
static void DestroyExpTaskAndCompleteOnInactiveTextPrinter(u8 taskId);
static void Task_PrepareToGiveExpWithExpBar(u8 taskId);
static void Task_GiveExpWithExpBar(u8 taskId);
static void Task_UpdateLvlInHealthbox(u8 taskId);
static void SwitchIn_WaitAndEnd(void);
static u32 CopyPlayerPartnerMonData(u8 monId, u8 *dst);
static void SetPlayerPartnerMonData(u8 monId);
static void StartSendOutAnim(u8 battlerId, bool8 dontClearSubstituteBit);
static void DoSwitchOutAnimation(void);
static void PlayerPartnerDoMoveAnimation(void);
static void Task_StartSendOutAnim(u8 taskId);
static void EndDrawPartyStatusSummary(void);

static void (*const sPlayerPartnerBufferCommands[CONTROLLER_CMDS_COUNT])(void) =
{
    [CONTROLLER_GETMONDATA]               = PlayerPartnerHandleGetMonData,
    [CONTROLLER_GETRAWMONDATA]            = PlayerPartnerHandleGetRawMonData,
    [CONTROLLER_SETMONDATA]               = PlayerPartnerHandleSetMonData,
    [CONTROLLER_SETRAWMONDATA]            = PlayerPartnerHandleSetRawMonData,
    [CONTROLLER_LOADMONSPRITE]            = PlayerPartnerHandleLoadMonSprite,
    [CONTROLLER_SWITCHINANIM]             = PlayerPartnerHandleSwitchInAnim,
    [CONTROLLER_RETURNMONTOBALL]          = PlayerPartnerHandleReturnMonToBall,
    [CONTROLLER_DRAWTRAINERPIC]           = PlayerPartnerHandleDrawTrainerPic,
    [CONTROLLER_TRAINERSLIDE]             = PlayerPartnerHandleTrainerSlide,
    [CONTROLLER_TRAINERSLIDEBACK]         = PlayerPartnerHandleTrainerSlideBack,
    [CONTROLLER_FAINTANIMATION]           = PlayerPartnerHandleFaintAnimation,
    [CONTROLLER_PALETTEFADE]              = PlayerPartnerHandlePaletteFade,
    [CONTROLLER_SUCCESSBALLTHROWANIM]     = PlayerPartnerHandleSuccessBallThrowAnim,
    [CONTROLLER_BALLTHROWANIM]            = PlayerPartnerHandleBallThrowAnim,
    [CONTROLLER_PAUSE]                    = PlayerPartnerHandlePause,
    [CONTROLLER_MOVEANIMATION]            = PlayerPartnerHandleMoveAnimation,
    [CONTROLLER_PRINTSTRING]              = PlayerPartnerHandlePrintString,
    [CONTROLLER_PRINTSTRINGPLAYERONLY]    = PlayerPartnerHandlePrintSelectionString,
    [CONTROLLER_CHOOSEACTION]             = PlayerPartnerHandleChooseAction,
    [CONTROLLER_YESNOBOX]                 = PlayerPartnerHandleYesNoBox,
    [CONTROLLER_CHOOSEMOVE]               = PlayerPartnerHandleChooseMove,
    [CONTROLLER_OPENBAG]                  = PlayerPartnerHandleChooseItem,
    [CONTROLLER_CHOOSEPOKEMON]            = PlayerPartnerHandleChoosePokemon,
    [CONTROLLER_23]                       = PlayerPartnerHandleCmd23,
    [CONTROLLER_HEALTHBARUPDATE]          = PlayerPartnerHandleHealthBarUpdate,
    [CONTROLLER_EXPUPDATE]                = PlayerPartnerHandleExpUpdate,
    [CONTROLLER_STATUSICONUPDATE]         = PlayerPartnerHandleStatusIconUpdate,
    [CONTROLLER_STATUSANIMATION]          = PlayerPartnerHandleStatusAnimation,
    [CONTROLLER_STATUSXOR]                = PlayerPartnerHandleStatusXor,
    [CONTROLLER_DATATRANSFER]             = PlayerPartnerHandleDataTransfer,
    [CONTROLLER_DMA3TRANSFER]             = PlayerPartnerHandleDMA3Transfer,
    [CONTROLLER_PLAYBGM]                  = PlayerPartnerHandlePlayBGM,
    [CONTROLLER_32]                       = PlayerPartnerHandleCmd32,
    [CONTROLLER_TWORETURNVALUES]          = PlayerPartnerHandleTwoReturnValues,
    [CONTROLLER_CHOSENMONRETURNVALUE]     = PlayerPartnerHandleChosenMonReturnValue,
    [CONTROLLER_ONERETURNVALUE]           = PlayerPartnerHandleOneReturnValue,
    [CONTROLLER_ONERETURNVALUE_DUPLICATE] = PlayerPartnerHandleOneReturnValue_Duplicate,
    [CONTROLLER_CLEARUNKVAR]              = PlayerPartnerHandleClearUnkVar,
    [CONTROLLER_SETUNKVAR]                = PlayerPartnerHandleSetUnkVar,
    [CONTROLLER_CLEARUNKFLAG]             = PlayerPartnerHandleClearUnkFlag,
    [CONTROLLER_TOGGLEUNKFLAG]            = PlayerPartnerHandleToggleUnkFlag,
    [CONTROLLER_HITANIMATION]             = PlayerPartnerHandleHitAnimation,
    [CONTROLLER_CANTSWITCH]               = PlayerPartnerHandleCantSwitch,
    [CONTROLLER_PLAYSE]                   = PlayerPartnerHandlePlaySE,
    [CONTROLLER_PLAYFANFAREORBGM]         = PlayerPartnerHandlePlayFanfareOrBGM,
    [CONTROLLER_FAINTINGCRY]              = PlayerPartnerHandleFaintingCry,
    [CONTROLLER_INTROSLIDE]               = PlayerPartnerHandleIntroSlide,
    [CONTROLLER_INTROTRAINERBALLTHROW]    = PlayerPartnerHandleIntroTrainerBallThrow,
    [CONTROLLER_DRAWPARTYSTATUSSUMMARY]   = PlayerPartnerHandleDrawPartyStatusSummary,
    [CONTROLLER_HIDEPARTYSTATUSSUMMARY]   = PlayerPartnerHandleHidePartyStatusSummary,
    [CONTROLLER_ENDBOUNCE]                = PlayerPartnerHandleEndBounceEffect,
    [CONTROLLER_SPRITEINVISIBILITY]       = PlayerPartnerHandleSpriteInvisibility,
    [CONTROLLER_BATTLEANIMATION]          = PlayerPartnerHandleBattleAnimation,
    [CONTROLLER_LINKSTANDBYMSG]           = PlayerPartnerHandleLinkStandbyMsg,
    [CONTROLLER_RESETACTIONMOVESELECTION] = PlayerPartnerHandleResetActionMoveSelection,
    [CONTROLLER_ENDLINKBATTLE]            = PlayerPartnerHandleEndLinkBattle,
    [CONTROLLER_DEBUGMENU]                = PlayerPartnerHandleBattleDebug,
    [CONTROLLER_TERMINATOR_NOP]           = PlayerPartnerCmdEnd
};

// unknown unused data
static const u8 sUnused[] =
{
    0x83, 0x4d, 0xf3, 0x5f, 0x6f, 0x4f, 0xeb, 0x3e,
    0x67, 0x2e, 0x10, 0x46, 0x8c, 0x3d, 0x28, 0x35,
    0xc5, 0x2c, 0x15, 0x7f, 0xb5, 0x56, 0x9d, 0x53,
    0x3b, 0x43, 0xda, 0x36, 0x79, 0x2a, 0x0e, 0x53,
};

static void PlayerPartnerDummy(void)
{
}

void SetControllerToPlayerPartner(void)
{
    gBattlerControllerFuncs[gActiveBattler] = PlayerPartnerBufferRunCommand;
}

static void PlayerPartnerBufferRunCommand(void)
{
    if (gBattleControllerExecFlags & gBitTable[gActiveBattler])
    {
        if (gBattleResources->bufferA[gActiveBattler][0] < ARRAY_COUNT(sPlayerPartnerBufferCommands))
            sPlayerPartnerBufferCommands[gBattleResources->bufferA[gActiveBattler][0]]();
        else
            PlayerPartnerBufferExecCompleted();
    }
}

static void CompleteOnBattlerSpriteCallbackDummy(void)
{
    if (gSprites[gBattlerSpriteIds[gActiveBattler]].callback == SpriteCallbackDummy)
        PlayerPartnerBufferExecCompleted();
}

static void FreeTrainerSpriteAfterSlide(void)
{
    if (gSprites[gBattlerSpriteIds[gActiveBattler]].callback == SpriteCallbackDummy)
    {
        BattleGfxSfxDummy3(MALE);
        FreeSpriteOamMatrix(&gSprites[gBattlerSpriteIds[gActiveBattler]]);
        DestroySprite(&gSprites[gBattlerSpriteIds[gActiveBattler]]);
        PlayerPartnerBufferExecCompleted();
    }
}

static void Intro_DelayAndEnd(void)
{
    if (--gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].introEndDelay == (u8)-1)
    {
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].introEndDelay = 0;
        PlayerPartnerBufferExecCompleted();
    }
}

static void Intro_WaitForHealthbox(void)
{
    bool32 finished = FALSE;

    if (!IsDoubleBattle() || (IsDoubleBattle() && (gBattleTypeFlags & BATTLE_TYPE_MULTI)))
    {
        if (gSprites[gHealthboxSpriteIds[gActiveBattler]].callback == SpriteCallbackDummy)
            finished = TRUE;
    }
    else
    {
        if (gSprites[gHealthboxSpriteIds[gActiveBattler]].callback == SpriteCallbackDummy
            && gSprites[gHealthboxSpriteIds[BATTLE_PARTNER(gActiveBattler)]].callback == SpriteCallbackDummy)
        {
            finished = TRUE;
        }
    }

    if (IsCryPlayingOrClearCrySongs())
        finished = FALSE;

    if (finished)
    {
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].introEndDelay = 3;
        gBattlerControllerFuncs[gActiveBattler] = Intro_DelayAndEnd;
    }
}

static void Intro_ShowHealthbox(void)
{
    if (!gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].ballAnimActive
        && !gBattleSpritesDataPtr->healthBoxesData[BATTLE_PARTNER(gActiveBattler)].ballAnimActive
        && gSprites[gBattleControllerData[gActiveBattler]].callback == SpriteCallbackDummy
        && gSprites[gBattlerSpriteIds[gActiveBattler]].callback == SpriteCallbackDummy
        && ++gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].introEndDelay != 1)
    {
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].introEndDelay = 0;

        if (IsDoubleBattle() && !(gBattleTypeFlags & BATTLE_TYPE_MULTI))
        {
            DestroySprite(&gSprites[gBattleControllerData[BATTLE_PARTNER(gActiveBattler)]]);
            UpdateHealthboxAttribute(gHealthboxSpriteIds[BATTLE_PARTNER(gActiveBattler)], &gPlayerParty[gBattlerPartyIndexes[BATTLE_PARTNER(gActiveBattler)]], HEALTHBOX_ALL);
            StartHealthboxSlideIn(BATTLE_PARTNER(gActiveBattler));
            SetHealthboxSpriteVisible(gHealthboxSpriteIds[BATTLE_PARTNER(gActiveBattler)]);
        }

        DestroySprite(&gSprites[gBattleControllerData[gActiveBattler]]);
        UpdateHealthboxAttribute(gHealthboxSpriteIds[gActiveBattler], &gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], HEALTHBOX_ALL);
        StartHealthboxSlideIn(gActiveBattler);
        SetHealthboxSpriteVisible(gHealthboxSpriteIds[gActiveBattler]);

        gBattleSpritesDataPtr->animationData->introAnimActive = FALSE;

        gBattlerControllerFuncs[gActiveBattler] = Intro_WaitForHealthbox;
    }
}

static void WaitForMonAnimAfterLoad(void)
{
    if (gSprites[gBattlerSpriteIds[gActiveBattler]].animEnded && gSprites[gBattlerSpriteIds[gActiveBattler]].x2 == 0)
        PlayerPartnerBufferExecCompleted();
}

static void CompleteOnHealthbarDone(void)
{
    s16 hpValue = MoveBattleBar(gActiveBattler, gHealthboxSpriteIds[gActiveBattler], HEALTH_BAR, 0);

    SetHealthboxSpriteVisible(gHealthboxSpriteIds[gActiveBattler]);

    if (hpValue != -1)
    {
        UpdateHpTextInHealthbox(gHealthboxSpriteIds[gActiveBattler], HP_CURRENT, hpValue, gBattleMons[gActiveBattler].maxHP);
    }
    else
    {
        HandleLowHpMusicChange(&gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], gActiveBattler);
        PlayerPartnerBufferExecCompleted();
    }
}

static void CompleteOnInactiveTextPrinter(void)
{
    if (!IsTextPrinterActive(B_WIN_MSG))
        PlayerPartnerBufferExecCompleted();
}

// the whole exp task is copied&pasted from player controller
#define tExpTask_monId      data[0]
#define tExpTask_gainedExp  data[1]
#define tExpTask_bank       data[2]
#define tExpTask_frames     data[10]

static void Task_GiveExpToMon(u8 taskId)
{
    u32 monId = (u8)(gTasks[taskId].tExpTask_monId);
    u8 battlerId = gTasks[taskId].tExpTask_bank;
    s16 gainedExp = gTasks[taskId].tExpTask_gainedExp;

    if (IsDoubleBattle() == TRUE || monId != gBattlerPartyIndexes[battlerId]) // give exp without the expbar
    {
        struct Pokemon *mon = &gPlayerParty[monId];
        u16 species = GetMonData(mon, MON_DATA_SPECIES);
        u8 level = GetMonData(mon, MON_DATA_LEVEL);
        u32 currExp = GetMonData(mon, MON_DATA_EXP);
        u32 nextLvlExp = gExperienceTables[gSpeciesInfo[species].growthRate][level + 1];

        if (currExp + gainedExp >= nextLvlExp)
        {
            u8 savedActiveBank;

            SetMonData(mon, MON_DATA_EXP, &nextLvlExp);
            CalculateMonStats(mon);
            gainedExp -= nextLvlExp - currExp;
            savedActiveBank = gActiveBattler;
            gActiveBattler = battlerId;
            BtlController_EmitTwoReturnValues(BUFFER_B, RET_VALUE_LEVELED_UP, gainedExp);
            gActiveBattler = savedActiveBank;

            if (IsDoubleBattle() == TRUE
             && ((u16)(monId) == gBattlerPartyIndexes[battlerId] || (u16)(monId) == gBattlerPartyIndexes[BATTLE_PARTNER(battlerId)]))
                gTasks[taskId].func = Task_LaunchLvlUpAnim;
            else
                gTasks[taskId].func = DestroyExpTaskAndCompleteOnInactiveTextPrinter;
        }
        else
        {
            currExp += gainedExp;
            SetMonData(mon, MON_DATA_EXP, &currExp);
            gBattlerControllerFuncs[battlerId] = CompleteOnInactiveTextPrinter;
            DestroyTask(taskId);
        }
    }
    else
    {
        gTasks[taskId].func = Task_PrepareToGiveExpWithExpBar;
    }
}

static void Task_PrepareToGiveExpWithExpBar(u8 taskId)
{
    u8 monIndex = gTasks[taskId].tExpTask_monId;
    s32 gainedExp = gTasks[taskId].tExpTask_gainedExp;
    u8 battlerId = gTasks[taskId].tExpTask_bank;
    struct Pokemon *mon = &gPlayerParty[monIndex];
    u8 level = GetMonData(mon, MON_DATA_LEVEL);
    u16 species = GetMonData(mon, MON_DATA_SPECIES);
    u32 exp = GetMonData(mon, MON_DATA_EXP);
    u32 currLvlExp = gExperienceTables[gSpeciesInfo[species].growthRate][level];
    u32 expToNextLvl;

    exp -= currLvlExp;
    expToNextLvl = gExperienceTables[gSpeciesInfo[species].growthRate][level + 1] - currLvlExp;
    SetBattleBarStruct(battlerId, gHealthboxSpriteIds[battlerId], expToNextLvl, exp, -gainedExp);
    PlaySE(SE_EXP);
    gTasks[taskId].func = Task_GiveExpWithExpBar;
}

static void Task_GiveExpWithExpBar(u8 taskId)
{
    if (gTasks[taskId].tExpTask_frames < 13)
    {
        gTasks[taskId].tExpTask_frames++;
    }
    else
    {
        u8 monId = gTasks[taskId].tExpTask_monId;
        s16 gainedExp = gTasks[taskId].tExpTask_gainedExp;
        u8 battlerId = gTasks[taskId].tExpTask_bank;
        s16 r4;

        r4 = MoveBattleBar(battlerId, gHealthboxSpriteIds[battlerId], EXP_BAR, 0);
        SetHealthboxSpriteVisible(gHealthboxSpriteIds[battlerId]);
        if (r4 == -1)
        {
            u8 level;
            s32 currExp;
            u16 species;
            s32 expOnNextLvl;

            m4aSongNumStop(SE_EXP);
            level = GetMonData(&gPlayerParty[monId], MON_DATA_LEVEL);
            currExp = GetMonData(&gPlayerParty[monId], MON_DATA_EXP);
            species = GetMonData(&gPlayerParty[monId], MON_DATA_SPECIES);
            expOnNextLvl = gExperienceTables[gSpeciesInfo[species].growthRate][level + 1];

            if (currExp + gainedExp >= expOnNextLvl)
            {
                u8 savedActiveBank;

                SetMonData(&gPlayerParty[monId], MON_DATA_EXP, &expOnNextLvl);
                CalculateMonStats(&gPlayerParty[monId]);
                gainedExp -= expOnNextLvl - currExp;
                savedActiveBank = gActiveBattler;
                gActiveBattler = battlerId;
                BtlController_EmitTwoReturnValues(BUFFER_B, RET_VALUE_LEVELED_UP, gainedExp);
                gActiveBattler = savedActiveBank;
                gTasks[taskId].func = Task_LaunchLvlUpAnim;
            }
            else
            {
                currExp += gainedExp;
                SetMonData(&gPlayerParty[monId], MON_DATA_EXP, &currExp);
                gBattlerControllerFuncs[battlerId] = CompleteOnInactiveTextPrinter;
                DestroyTask(taskId);
            }
        }
    }
}

static void Task_LaunchLvlUpAnim(u8 taskId)
{
    u8 battlerId = gTasks[taskId].tExpTask_bank;
    u8 monIndex = gTasks[taskId].tExpTask_monId;

    if (IsDoubleBattle() == TRUE && monIndex == gBattlerPartyIndexes[BATTLE_PARTNER(battlerId)])
        battlerId ^= BIT_FLANK;

    InitAndLaunchSpecialAnimation(battlerId, battlerId, battlerId, B_ANIM_LVL_UP);
    gTasks[taskId].func = Task_UpdateLvlInHealthbox;
}

static void Task_UpdateLvlInHealthbox(u8 taskId)
{
    u8 battlerId = gTasks[taskId].tExpTask_bank;

    if (!gBattleSpritesDataPtr->healthBoxesData[battlerId].specialAnimActive)
    {
        u8 monIndex = gTasks[taskId].tExpTask_monId;

        GetMonData(&gPlayerParty[monIndex], MON_DATA_LEVEL);  // Unused return value

        if (IsDoubleBattle() == TRUE && monIndex == gBattlerPartyIndexes[BATTLE_PARTNER(battlerId)])
            UpdateHealthboxAttribute(gHealthboxSpriteIds[BATTLE_PARTNER(battlerId)], &gPlayerParty[monIndex], HEALTHBOX_ALL);
        else
            UpdateHealthboxAttribute(gHealthboxSpriteIds[battlerId], &gPlayerParty[monIndex], HEALTHBOX_ALL);

        gTasks[taskId].func = DestroyExpTaskAndCompleteOnInactiveTextPrinter;
    }
}

static void DestroyExpTaskAndCompleteOnInactiveTextPrinter(u8 taskId)
{
    u8 monIndex;
    u8 battlerId;

    monIndex = gTasks[taskId].tExpTask_monId;
    GetMonData(&gPlayerParty[monIndex], MON_DATA_LEVEL);  // Unused return value
    battlerId = gTasks[taskId].tExpTask_bank;
    gBattlerControllerFuncs[battlerId] = CompleteOnInactiveTextPrinter;
    DestroyTask(taskId);
}

static void FreeMonSpriteAfterFaintAnim(void)
{
    if (gSprites[gBattlerSpriteIds[gActiveBattler]].y + gSprites[gBattlerSpriteIds[gActiveBattler]].y2 > DISPLAY_HEIGHT)
    {
        u16 species = GetMonData(&gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], MON_DATA_SPECIES);

        BattleGfxSfxDummy2(species);
        FreeOamMatrix(gSprites[gBattlerSpriteIds[gActiveBattler]].oam.matrixNum);
        DestroySprite(&gSprites[gBattlerSpriteIds[gActiveBattler]]);
        SetHealthboxSpriteInvisible(gHealthboxSpriteIds[gActiveBattler]);
        PlayerPartnerBufferExecCompleted();
    }
}

static void FreeMonSpriteAfterSwitchOutAnim(void)
{
    if (!gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].specialAnimActive)
    {
        FreeSpriteOamMatrix(&gSprites[gBattlerSpriteIds[gActiveBattler]]);
        DestroySprite(&gSprites[gBattlerSpriteIds[gActiveBattler]]);
        SetHealthboxSpriteInvisible(gHealthboxSpriteIds[gActiveBattler]);
        PlayerPartnerBufferExecCompleted();
    }
}

static void CompleteOnInactiveTextPrinter2(void)
{
    if (!IsTextPrinterActive(B_WIN_MSG))
        PlayerPartnerBufferExecCompleted();
}

static void DoHitAnimBlinkSpriteEffect(void)
{
    u8 spriteId = gBattlerSpriteIds[gActiveBattler];

    if (gSprites[spriteId].data[1] == 32)
    {
        gSprites[spriteId].data[1] = 0;
        gSprites[spriteId].invisible = FALSE;
        gDoingBattleAnim = FALSE;
        PlayerPartnerBufferExecCompleted();
    }
    else
    {
        if ((gSprites[spriteId].data[1] % 4) == 0)
            gSprites[spriteId].invisible ^= 1;
        gSprites[spriteId].data[1]++;
    }
}

static void SwitchIn_ShowSubstitute(void)
{
    if (gSprites[gHealthboxSpriteIds[gActiveBattler]].callback == SpriteCallbackDummy)
    {
        CopyBattleSpriteInvisibility(gActiveBattler);
        if (gBattleSpritesDataPtr->battlerData[gActiveBattler].behindSubstitute)
            InitAndLaunchSpecialAnimation(gActiveBattler, gActiveBattler, gActiveBattler, B_ANIM_MON_TO_SUBSTITUTE);

        gBattlerControllerFuncs[gActiveBattler] = SwitchIn_WaitAndEnd;
    }
}

static void SwitchIn_WaitAndEnd(void)
{
    if (!gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].specialAnimActive
        && gSprites[gBattlerSpriteIds[gActiveBattler]].callback == SpriteCallbackDummy)
    {
        PlayerPartnerBufferExecCompleted();
    }
}

static void SwitchIn_ShowHealthbox(void)
{
    if (gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].finishedShinyMonAnim)
    {
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].triedShinyMonAnim = FALSE;
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].finishedShinyMonAnim = FALSE;

        FreeSpriteTilesByTag(ANIM_TAG_GOLD_STARS);
        FreeSpritePaletteByTag(ANIM_TAG_GOLD_STARS);

        CreateTask(Task_PlayerController_RestoreBgmAfterCry, 10);
        HandleLowHpMusicChange(&gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], gActiveBattler);
        StartSpriteAnim(&gSprites[gBattlerSpriteIds[gActiveBattler]], 0);
        UpdateHealthboxAttribute(gHealthboxSpriteIds[gActiveBattler], &gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], HEALTHBOX_ALL);
        StartHealthboxSlideIn(gActiveBattler);
        SetHealthboxSpriteVisible(gHealthboxSpriteIds[gActiveBattler]);

        gBattlerControllerFuncs[gActiveBattler] = SwitchIn_ShowSubstitute;
    }
}

static void SwitchIn_TryShinyAnim(void)
{
    if (!gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].triedShinyMonAnim
        && !gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].ballAnimActive)
    {
        TryShinyAnimation(gActiveBattler, &gPlayerParty[gBattlerPartyIndexes[gActiveBattler]]);
    }

    if (gSprites[gBattleControllerData[gActiveBattler]].callback == SpriteCallbackDummy
     && !gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].ballAnimActive)
    {
        DestroySprite(&gSprites[gBattleControllerData[gActiveBattler]]);
        gBattlerControllerFuncs[gActiveBattler] = SwitchIn_ShowHealthbox;
    }
}

static void PlayerPartnerBufferExecCompleted(void)
{
    gBattlerControllerFuncs[gActiveBattler] = PlayerPartnerBufferRunCommand;
    if (gBattleTypeFlags & BATTLE_TYPE_LINK)
    {
        u8 playerId = GetMultiplayerId();

        PrepareBufferDataTransferLink(2, 4, &playerId);
        gBattleResources->bufferA[gActiveBattler][0] = CONTROLLER_TERMINATOR_NOP;
    }
    else
    {
        gBattleControllerExecFlags &= ~gBitTable[gActiveBattler];
    }
}

static void CompleteOnFinishedStatusAnimation(void)
{
    if (!gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].statusAnimActive)
        PlayerPartnerBufferExecCompleted();
}

static void CompleteOnFinishedBattleAnimation(void)
{
    if (!gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animFromTableActive)
        PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleGetMonData(void)
{
    BtlController_HandleGetMonData(gActiveBattler, gPlayerParty, PlayerPartnerBufferExecCompleted);
}

static void PlayerPartnerHandleGetRawMonData(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleSetMonData(void)
{
    BtlController_HandleSetMonData(gActiveBattler, gPlayerParty, PlayerPartnerBufferExecCompleted);
}

static void PlayerPartnerHandleSetRawMonData(void)
{
    BtlController_HandleSetRawMonData(gActiveBattler, gPlayerParty, PlayerPartnerBufferExecCompleted);
}

static void PlayerPartnerHandleLoadMonSprite(void)
{
    BtlController_HandleLoadMonSprite(gActiveBattler, gPlayerParty, WaitForMonAnimAfterLoad);
}

static void PlayerPartnerHandleSwitchInAnim(void)
{
    ClearTemporarySpeciesSpriteData(gActiveBattler, gBattleResources->bufferA[gActiveBattler][2]);
    gBattlerPartyIndexes[gActiveBattler] = gBattleResources->bufferA[gActiveBattler][1];
    BattleLoadMonSpriteGfx(&gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], gActiveBattler);
    StartSendOutAnim(gActiveBattler, gBattleResources->bufferA[gActiveBattler][2]);
    gBattlerControllerFuncs[gActiveBattler] = SwitchIn_TryShinyAnim;
}

static void StartSendOutAnim(u8 battlerId, bool8 dontClearSubstituteBit)
{
    u16 species;

    ClearTemporarySpeciesSpriteData(battlerId, dontClearSubstituteBit);
    gBattlerPartyIndexes[battlerId] = gBattleResources->bufferA[battlerId][1];
    species = GetMonData(&gPlayerParty[gBattlerPartyIndexes[battlerId]], MON_DATA_SPECIES);
    gBattleControllerData[battlerId] = CreateInvisibleSpriteWithCallback(SpriteCB_WaitForBattlerBallReleaseAnim);
    SetMultiuseSpriteTemplateToPokemon(species, GetBattlerPosition(battlerId));

    gBattlerSpriteIds[battlerId] = CreateSprite(
      &gMultiuseSpriteTemplate,
      GetBattlerSpriteCoord(battlerId, BATTLER_COORD_X_2),
      GetBattlerSpriteDefault_Y(battlerId),
      GetBattlerSpriteSubpriority(battlerId));

    gSprites[gBattleControllerData[battlerId]].data[1] = gBattlerSpriteIds[battlerId];
    gSprites[gBattleControllerData[battlerId]].data[2] = battlerId;

    gSprites[gBattlerSpriteIds[battlerId]].data[0] = battlerId;
    gSprites[gBattlerSpriteIds[battlerId]].data[2] = species;
    gSprites[gBattlerSpriteIds[battlerId]].oam.paletteNum = battlerId;

    StartSpriteAnim(&gSprites[gBattlerSpriteIds[battlerId]], 0);

    gSprites[gBattlerSpriteIds[battlerId]].invisible = TRUE;
    gSprites[gBattlerSpriteIds[battlerId]].callback = SpriteCallbackDummy;

    gSprites[gBattleControllerData[battlerId]].data[0] = DoPokeballSendOutAnimation(0, POKEBALL_PLAYER_SENDOUT);
}

static void PlayerPartnerHandleReturnMonToBall(void)
{
    if (gBattleResources->bufferA[gActiveBattler][1] == 0)
    {
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState = 0;
        gBattlerControllerFuncs[gActiveBattler] = DoSwitchOutAnimation;
    }
    else
    {
        FreeSpriteOamMatrix(&gSprites[gBattlerSpriteIds[gActiveBattler]]);
        DestroySprite(&gSprites[gBattlerSpriteIds[gActiveBattler]]);
        SetHealthboxSpriteInvisible(gHealthboxSpriteIds[gActiveBattler]);
        PlayerPartnerBufferExecCompleted();
    }
}

static void DoSwitchOutAnimation(void)
{
    switch (gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState)
    {
    case 0:
        if (gBattleSpritesDataPtr->battlerData[gActiveBattler].behindSubstitute)
            InitAndLaunchSpecialAnimation(gActiveBattler, gActiveBattler, gActiveBattler, B_ANIM_SUBSTITUTE_TO_MON);

        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState = 1;
        break;
    case 1:
        if (!gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].specialAnimActive)
        {
            gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState = 0;
            InitAndLaunchSpecialAnimation(gActiveBattler, gActiveBattler, gActiveBattler, B_ANIM_SWITCH_OUT_PLAYER_MON);
            gBattlerControllerFuncs[gActiveBattler] = FreeMonSpriteAfterSwitchOutAnim;
        }
        break;
    }
}

#define sSpeedX data[0]

// some explanation here
// in emerald it's possible to have a tag battle in the battle frontier facilities with AI
// which use the front sprite for both the player and the partner as opposed to any other battles (including the one with Steven) that use the back pic as well as animate it
static void PlayerPartnerHandleDrawTrainerPic(void)
{
    s16 xPos, yPos;
    u32 trainerPicId;

    if (gPartnerTrainerId == TRAINER_STEVEN_PARTNER)
    {
        trainerPicId = TRAINER_BACK_PIC_STEVEN;
        xPos = 90;
        yPos = (8 - gTrainerBackPicCoords[trainerPicId].size) * 4 + 80;
    }
    else if (gPartnerTrainerId >= TRAINER_CUSTOM_PARTNER)
    {
        trainerPicId = gPartnerSpriteId;
        xPos = 90;
        yPos = (8 - gTrainerBackPicCoords[trainerPicId].size) * 4 + 80;
    }
    else
    {
        trainerPicId = GetFrontierTrainerFrontSpriteId(gPartnerTrainerId);
        xPos = 32;
        yPos = (8 - gTrainerFrontPicCoords[trainerPicId].size) * 4 + 80;
    }

    // Use back pic only if the partner is Steven
    if (gPartnerTrainerId == TRAINER_STEVEN_PARTNER || gPartnerTrainerId >= TRAINER_CUSTOM_PARTNER)
    {
        DecompressTrainerBackPic(trainerPicId, gActiveBattler);
        SetMultiuseSpriteTemplateToTrainerBack(trainerPicId, GetBattlerPosition(gActiveBattler));
        gBattlerSpriteIds[gActiveBattler] = CreateSprite(&gMultiuseSpriteTemplate, xPos, yPos, GetBattlerSpriteSubpriority(gActiveBattler));

        gSprites[gBattlerSpriteIds[gActiveBattler]].oam.paletteNum = gActiveBattler;
        gSprites[gBattlerSpriteIds[gActiveBattler]].x2 = DISPLAY_WIDTH;
        gSprites[gBattlerSpriteIds[gActiveBattler]].sSpeedX = -2;
        gSprites[gBattlerSpriteIds[gActiveBattler]].callback = SpriteCB_TrainerSlideIn;
    }
    else // otherwise use front sprite
    {
        DecompressTrainerFrontPic(trainerPicId, gActiveBattler);
        SetMultiuseSpriteTemplateToTrainerFront(trainerPicId, GetBattlerPosition(gActiveBattler));
        gBattlerSpriteIds[gActiveBattler] = CreateSprite(&gMultiuseSpriteTemplate, xPos, yPos, GetBattlerSpriteSubpriority(gActiveBattler));

        gSprites[gBattlerSpriteIds[gActiveBattler]].oam.paletteNum = IndexOfSpritePaletteTag(gTrainerFrontPicPaletteTable[trainerPicId].tag);
        gSprites[gBattlerSpriteIds[gActiveBattler]].x2 = DISPLAY_WIDTH;
        gSprites[gBattlerSpriteIds[gActiveBattler]].y2 = 48;
        gSprites[gBattlerSpriteIds[gActiveBattler]].sSpeedX = -2;
        gSprites[gBattlerSpriteIds[gActiveBattler]].callback = SpriteCB_TrainerSlideIn;
        gSprites[gBattlerSpriteIds[gActiveBattler]].oam.affineMode = ST_OAM_AFFINE_OFF;
        gSprites[gBattlerSpriteIds[gActiveBattler]].hFlip = 1;
    }

    gBattlerControllerFuncs[gActiveBattler] = CompleteOnBattlerSpriteCallbackDummy;
}

#undef sSpeedX

static void PlayerPartnerHandleTrainerSlide(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleTrainerSlideBack(void)
{
    SetSpritePrimaryCoordsFromSecondaryCoords(&gSprites[gBattlerSpriteIds[gActiveBattler]]);
    gSprites[gBattlerSpriteIds[gActiveBattler]].data[0] = 35;
    gSprites[gBattlerSpriteIds[gActiveBattler]].data[2] = -40;
    gSprites[gBattlerSpriteIds[gActiveBattler]].data[4] = gSprites[gBattlerSpriteIds[gActiveBattler]].y;
    gSprites[gBattlerSpriteIds[gActiveBattler]].callback = StartAnimLinearTranslation;
    StoreSpriteCallbackInData6(&gSprites[gBattlerSpriteIds[gActiveBattler]], SpriteCallbackDummy);
    gBattlerControllerFuncs[gActiveBattler] = FreeTrainerSpriteAfterSlide;
}

#define sSpeedX data[1]
#define sSpeedY data[2]

static void PlayerPartnerHandleFaintAnimation(void)
{
    if (gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState == 0)
    {
        if (gBattleSpritesDataPtr->battlerData[gActiveBattler].behindSubstitute)
            InitAndLaunchSpecialAnimation(gActiveBattler, gActiveBattler, gActiveBattler, B_ANIM_SUBSTITUTE_TO_MON);
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState++;
    }
    else
    {
        if (!gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].specialAnimActive)
        {
            gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState = 0;
            HandleLowHpMusicChange(&gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], gActiveBattler);
            PlaySE12WithPanning(SE_FAINT, SOUND_PAN_ATTACKER);
            gSprites[gBattlerSpriteIds[gActiveBattler]].sSpeedX = 0;
            gSprites[gBattlerSpriteIds[gActiveBattler]].sSpeedY = 5;
            gSprites[gBattlerSpriteIds[gActiveBattler]].callback = SpriteCB_FaintSlideAnim;
            gBattlerControllerFuncs[gActiveBattler] = FreeMonSpriteAfterFaintAnim;
        }
    }
}

#undef sSpeedX
#undef sSpeedY

static void PlayerPartnerHandlePaletteFade(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleSuccessBallThrowAnim(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleBallThrowAnim(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandlePause(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleMoveAnimation(void)
{
    if (!IsBattleSEPlaying(gActiveBattler))
    {
        u16 move = gBattleResources->bufferA[gActiveBattler][1] | (gBattleResources->bufferA[gActiveBattler][2] << 8);

        gAnimMoveTurn = gBattleResources->bufferA[gActiveBattler][3];
        gAnimMovePower = gBattleResources->bufferA[gActiveBattler][4] | (gBattleResources->bufferA[gActiveBattler][5] << 8);
        gAnimMoveDmg = gBattleResources->bufferA[gActiveBattler][6] | (gBattleResources->bufferA[gActiveBattler][7] << 8) | (gBattleResources->bufferA[gActiveBattler][8] << 16) | (gBattleResources->bufferA[gActiveBattler][9] << 24);
        gAnimFriendship = gBattleResources->bufferA[gActiveBattler][10];
        gWeatherMoveAnim = gBattleResources->bufferA[gActiveBattler][12] | (gBattleResources->bufferA[gActiveBattler][13] << 8);
        gAnimDisableStructPtr = (struct DisableStruct *)&gBattleResources->bufferA[gActiveBattler][16];
        gTransformedPersonalities[gActiveBattler] = gAnimDisableStructPtr->transformedMonPersonality;
        gTransformedOtIds[gActiveBattler] = gAnimDisableStructPtr->transformedMonOtId;
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState = 0;
        gBattlerControllerFuncs[gActiveBattler] = PlayerPartnerDoMoveAnimation;
    }
}

static void PlayerPartnerDoMoveAnimation(void)
{
    u16 move = gBattleResources->bufferA[gActiveBattler][1] | (gBattleResources->bufferA[gActiveBattler][2] << 8);
    u8 multihit = gBattleResources->bufferA[gActiveBattler][11];

    switch (gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState)
    {
    case 0:
        if (gBattleSpritesDataPtr->battlerData[gActiveBattler].behindSubstitute
            && !gBattleSpritesDataPtr->battlerData[gActiveBattler].flag_x8)
        {
            gBattleSpritesDataPtr->battlerData[gActiveBattler].flag_x8 = 1;
            InitAndLaunchSpecialAnimation(gActiveBattler, gActiveBattler, gActiveBattler, B_ANIM_SUBSTITUTE_TO_MON);
        }
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState = 1;
        break;
    case 1:
        if (!gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].specialAnimActive)
        {
            SetBattlerSpriteAffineMode(ST_OAM_AFFINE_OFF);
            DoMoveAnim(move);
            gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState = 2;
        }
        break;
    case 2:
        gAnimScriptCallback();
        if (!gAnimScriptActive)
        {
            SetBattlerSpriteAffineMode(ST_OAM_AFFINE_NORMAL);
            if (gBattleSpritesDataPtr->battlerData[gActiveBattler].behindSubstitute && multihit < 2)
            {
                InitAndLaunchSpecialAnimation(gActiveBattler, gActiveBattler, gActiveBattler, B_ANIM_MON_TO_SUBSTITUTE);
                gBattleSpritesDataPtr->battlerData[gActiveBattler].flag_x8 = 0;
            }
            gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState = 3;
        }
        break;
    case 3:
        if (!gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].specialAnimActive)
        {
            CopyAllBattleSpritesInvisibilities();
            TrySetBehindSubstituteSpriteBit(gActiveBattler, gBattleResources->bufferA[gActiveBattler][1] | (gBattleResources->bufferA[gActiveBattler][2] << 8));
            gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].animationState = 0;
            PlayerPartnerBufferExecCompleted();
        }
        break;
    }
}

static void PlayerPartnerHandlePrintString(void)
{
    u16 *stringId;

    gBattle_BG0_X = 0;
    gBattle_BG0_Y = 0;
    stringId = (u16 *)(&gBattleResources->bufferA[gActiveBattler][2]);
    BufferStringBattle(*stringId);
    BattlePutTextOnWindow(gDisplayedStringBattle, B_WIN_MSG);
    gBattlerControllerFuncs[gActiveBattler] = CompleteOnInactiveTextPrinter2;
}

static void PlayerPartnerHandlePrintSelectionString(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleChooseAction(void)
{
    AI_TrySwitchOrUseItem();
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleYesNoBox(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleChooseMove(void)
{
    u8 chosenMoveId;
    struct ChooseMoveStruct *moveInfo = (struct ChooseMoveStruct *)(&gBattleResources->bufferA[gActiveBattler][4]);

    chosenMoveId = gBattleStruct->aiMoveOrAction[gActiveBattler];
    gBattlerTarget = gBattleStruct->aiChosenTarget[gActiveBattler];

    if (gBattleMoves[moveInfo->moves[chosenMoveId]].target & (MOVE_TARGET_USER | MOVE_TARGET_USER_OR_SELECTED))
        gBattlerTarget = gActiveBattler;
    if (gBattleMoves[moveInfo->moves[chosenMoveId]].target & MOVE_TARGET_BOTH)
    {
        gBattlerTarget = GetBattlerAtPosition(B_POSITION_OPPONENT_LEFT);
        if (gAbsentBattlerFlags & gBitTable[gBattlerTarget])
            gBattlerTarget = GetBattlerAtPosition(B_POSITION_OPPONENT_RIGHT);
    }

    if (ShouldUseZMove(gActiveBattler, gBattlerTarget, moveInfo->moves[chosenMoveId]))
        QueueZMove(gActiveBattler, moveInfo->moves[chosenMoveId]);

    // If partner can mega evolve, do it.
    if (CanMegaEvolve(gActiveBattler))
        BtlController_EmitTwoReturnValues(BUFFER_B, 10, (chosenMoveId) | (RET_MEGA_EVOLUTION) | (gBattlerTarget << 8));
    else
        BtlController_EmitTwoReturnValues(BUFFER_B, 10, (chosenMoveId) | (gBattlerTarget << 8));

    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleChooseItem(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleChoosePokemon(void)
{
    s32 chosenMonId;
    // Choosing Revival Blessing target
    if ((gBattleResources->bufferA[gActiveBattler][1] & 0xF) == PARTY_ACTION_CHOOSE_FAINTED_MON)
    {
        chosenMonId = gSelectedMonPartyId = GetFirstFaintedPartyIndex(gActiveBattler);
    }
    // Switching out
    else
    {
        chosenMonId = GetMostSuitableMonToSwitchInto();
        if (chosenMonId == PARTY_SIZE) // just switch to the next mon
        {
            u8 playerMonIdentity = GetBattlerAtPosition(B_POSITION_PLAYER_LEFT);
            u8 selfIdentity = GetBattlerAtPosition(B_POSITION_PLAYER_RIGHT);

            for (chosenMonId = PARTY_SIZE / 2; chosenMonId < PARTY_SIZE; chosenMonId++)
            {
                if (GetMonData(&gPlayerParty[chosenMonId], MON_DATA_HP) != 0
                    && chosenMonId != gBattlerPartyIndexes[playerMonIdentity]
                    && chosenMonId != gBattlerPartyIndexes[selfIdentity])
                {
                    break;
                }
            }
        }
        *(gBattleStruct->monToSwitchIntoId + gActiveBattler) = chosenMonId;
    }
    BtlController_EmitChosenMonReturnValue(BUFFER_B, chosenMonId, NULL);
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleCmd23(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleHealthBarUpdate(void)
{
    s16 hpVal;

    LoadBattleBarGfx(0);
    hpVal = gBattleResources->bufferA[gActiveBattler][2] | (gBattleResources->bufferA[gActiveBattler][3] << 8);

    if (hpVal != INSTANT_HP_BAR_DROP)
    {
        u32 maxHP = GetMonData(&gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], MON_DATA_MAX_HP);
        u32 curHP = GetMonData(&gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], MON_DATA_HP);

        SetBattleBarStruct(gActiveBattler, gHealthboxSpriteIds[gActiveBattler], maxHP, curHP, hpVal);
    }
    else
    {
        u32 maxHP = GetMonData(&gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], MON_DATA_MAX_HP);

        SetBattleBarStruct(gActiveBattler, gHealthboxSpriteIds[gActiveBattler], maxHP, 0, hpVal);
    }

    gBattlerControllerFuncs[gActiveBattler] = CompleteOnHealthbarDone;
}

static void PlayerPartnerHandleExpUpdate(void)
{
    u8 monId = gBattleResources->bufferA[gActiveBattler][1];

    if (GetMonData(&gPlayerParty[monId], MON_DATA_LEVEL) >= MAX_LEVEL)
    {
        PlayerPartnerBufferExecCompleted();
    }
    else
    {
        s16 expPointsToGive;
        u8 taskId;

        LoadBattleBarGfx(1);
        GetMonData(&gPlayerParty[monId], MON_DATA_SPECIES);  // unused return value
        expPointsToGive = gBattleResources->bufferA[gActiveBattler][2] | (gBattleResources->bufferA[gActiveBattler][3] << 8);
        taskId = CreateTask(Task_GiveExpToMon, 10);
        gTasks[taskId].tExpTask_monId = monId;
        gTasks[taskId].tExpTask_gainedExp = expPointsToGive;
        gTasks[taskId].tExpTask_bank = gActiveBattler;
        gBattlerControllerFuncs[gActiveBattler] = BattleControllerDummy;
    }
}

#undef tExpTask_monId
#undef tExpTask_gainedExp
#undef tExpTask_bank
#undef tExpTask_frames

static void PlayerPartnerHandleStatusIconUpdate(void)
{
    if (!IsBattleSEPlaying(gActiveBattler))
    {
        u8 battlerId;

        UpdateHealthboxAttribute(gHealthboxSpriteIds[gActiveBattler], &gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], HEALTHBOX_STATUS_ICON);
        battlerId = gActiveBattler;
        gBattleSpritesDataPtr->healthBoxesData[battlerId].statusAnimActive = 0;
        gBattlerControllerFuncs[gActiveBattler] = CompleteOnFinishedStatusAnimation;
    }
}

static void PlayerPartnerHandleStatusAnimation(void)
{
    if (!IsBattleSEPlaying(gActiveBattler))
    {
        InitAndLaunchChosenStatusAnimation(gBattleResources->bufferA[gActiveBattler][1],
                        gBattleResources->bufferA[gActiveBattler][2] | (gBattleResources->bufferA[gActiveBattler][3] << 8) | (gBattleResources->bufferA[gActiveBattler][4] << 16) | (gBattleResources->bufferA[gActiveBattler][5] << 24));
        gBattlerControllerFuncs[gActiveBattler] = CompleteOnFinishedStatusAnimation;
    }
}

static void PlayerPartnerHandleStatusXor(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleDataTransfer(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleDMA3Transfer(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandlePlayBGM(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleCmd32(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleTwoReturnValues(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleChosenMonReturnValue(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleOneReturnValue(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleOneReturnValue_Duplicate(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleClearUnkVar(void)
{
    gUnusedControllerStruct.unk = 0;
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleSetUnkVar(void)
{
    gUnusedControllerStruct.unk = gBattleResources->bufferA[gActiveBattler][1];
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleClearUnkFlag(void)
{
    gUnusedControllerStruct.flag = 0;
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleToggleUnkFlag(void)
{
    gUnusedControllerStruct.flag ^= 1;
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleHitAnimation(void)
{
    if (gSprites[gBattlerSpriteIds[gActiveBattler]].invisible == TRUE)
    {
        PlayerPartnerBufferExecCompleted();
    }
    else
    {
        gDoingBattleAnim = TRUE;
        gSprites[gBattlerSpriteIds[gActiveBattler]].data[1] = 0;
        DoHitAnimHealthboxEffect(gActiveBattler);
        gBattlerControllerFuncs[gActiveBattler] = DoHitAnimBlinkSpriteEffect;
    }
}

static void PlayerPartnerHandleCantSwitch(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandlePlaySE(void)
{
    s8 pan;

    if (GetBattlerSide(gActiveBattler) == B_SIDE_PLAYER)
        pan = SOUND_PAN_ATTACKER;
    else
        pan = SOUND_PAN_TARGET;

    PlaySE12WithPanning(gBattleResources->bufferA[gActiveBattler][1] | (gBattleResources->bufferA[gActiveBattler][2] << 8), pan);
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandlePlayFanfareOrBGM(void)
{
    if (gBattleResources->bufferA[gActiveBattler][3])
    {
        BattleStopLowHpSound();
        PlayBGM(gBattleResources->bufferA[gActiveBattler][1] | (gBattleResources->bufferA[gActiveBattler][2] << 8));
    }
    else
    {
        PlayFanfare(gBattleResources->bufferA[gActiveBattler][1] | (gBattleResources->bufferA[gActiveBattler][2] << 8));
    }

    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleFaintingCry(void)
{
    u16 species = GetMonData(&gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], MON_DATA_SPECIES);

    PlayCry_ByMode(species, -25, CRY_MODE_FAINT);
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleIntroSlide(void)
{
    HandleIntroSlide(gBattleResources->bufferA[gActiveBattler][1]);
    gIntroSlideFlags |= 1;
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleIntroTrainerBallThrow(void)
{
    u8 paletteNum;
    u8 taskId;

    SetSpritePrimaryCoordsFromSecondaryCoords(&gSprites[gBattlerSpriteIds[gActiveBattler]]);

    gSprites[gBattlerSpriteIds[gActiveBattler]].data[0] = 50;
    gSprites[gBattlerSpriteIds[gActiveBattler]].data[2] = -40;
    gSprites[gBattlerSpriteIds[gActiveBattler]].data[4] = gSprites[gBattlerSpriteIds[gActiveBattler]].y;
    gSprites[gBattlerSpriteIds[gActiveBattler]].callback = StartAnimLinearTranslation;
    gSprites[gBattlerSpriteIds[gActiveBattler]].data[5] = gActiveBattler;

    StoreSpriteCallbackInData6(&gSprites[gBattlerSpriteIds[gActiveBattler]], SpriteCB_FreePlayerSpriteLoadMonSprite);
    StartSpriteAnim(&gSprites[gBattlerSpriteIds[gActiveBattler]], 1);

    paletteNum = AllocSpritePalette(0xD6F9);
    if (gPartnerTrainerId == TRAINER_STEVEN_PARTNER)
    {
        u8 spriteId = TRAINER_BACK_PIC_STEVEN;
        LoadCompressedPalette(gTrainerBackPicPaletteTable[spriteId].data, OBJ_PLTT_ID(paletteNum), PLTT_SIZE_4BPP);
    }
    else if (gPartnerTrainerId >= TRAINER_CUSTOM_PARTNER)
    {
        u8 spriteId = gPartnerSpriteId;
        LoadCompressedPalette(gTrainerBackPicPaletteTable[spriteId].data, 0x100 + paletteNum * 16, 32);
    }
    else
    {
        u8 spriteId = GetFrontierTrainerFrontSpriteId(gPartnerTrainerId);
        LoadCompressedPalette(gTrainerFrontPicPaletteTable[spriteId].data, OBJ_PLTT_ID(paletteNum), PLTT_SIZE_4BPP);
    }


    gSprites[gBattlerSpriteIds[gActiveBattler]].oam.paletteNum = paletteNum;

    taskId = CreateTask(Task_StartSendOutAnim, 5);
    gTasks[taskId].data[0] = gActiveBattler;

    if (gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].partyStatusSummaryShown)
        gTasks[gBattlerStatusSummaryTaskId[gActiveBattler]].func = Task_HidePartyStatusSummary;

    gBattleSpritesDataPtr->animationData->introAnimActive = TRUE;
    gBattlerControllerFuncs[gActiveBattler] = PlayerPartnerDummy;
}

static void Task_StartSendOutAnim(u8 taskId)
{
    if (gTasks[taskId].data[1] < 24)
    {
        gTasks[taskId].data[1]++;
    }
    else
    {
        u8 savedActiveBank = gActiveBattler;

        gActiveBattler = gTasks[taskId].data[0];
        if (!IsDoubleBattle() || (gBattleTypeFlags & BATTLE_TYPE_MULTI))
        {
            gBattleResources->bufferA[gActiveBattler][1] = gBattlerPartyIndexes[gActiveBattler];
            StartSendOutAnim(gActiveBattler, FALSE);
        }
        else
        {
            gBattleResources->bufferA[gActiveBattler][1] = gBattlerPartyIndexes[gActiveBattler];
            StartSendOutAnim(gActiveBattler, FALSE);
            gActiveBattler ^= BIT_FLANK;
            gBattleResources->bufferA[gActiveBattler][1] = gBattlerPartyIndexes[gActiveBattler];
            BattleLoadMonSpriteGfx(&gPlayerParty[gBattlerPartyIndexes[gActiveBattler]], gActiveBattler);
            StartSendOutAnim(gActiveBattler, FALSE);
            gActiveBattler ^= BIT_FLANK;
        }
        gBattlerControllerFuncs[gActiveBattler] = Intro_ShowHealthbox;
        gActiveBattler = savedActiveBank;
        DestroyTask(taskId);
    }
}

static void PlayerPartnerHandleDrawPartyStatusSummary(void)
{
    if (gBattleResources->bufferA[gActiveBattler][1] != 0 && GetBattlerSide(gActiveBattler) == B_SIDE_PLAYER)
    {
        PlayerPartnerBufferExecCompleted();
    }
    else
    {
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].partyStatusSummaryShown = 1;
        gBattlerStatusSummaryTaskId[gActiveBattler] = CreatePartyStatusSummarySprites(gActiveBattler, (struct HpAndStatus *)&gBattleResources->bufferA[gActiveBattler][4], gBattleResources->bufferA[gActiveBattler][1], gBattleResources->bufferA[gActiveBattler][2]);
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].partyStatusDelayTimer = 0;

        if (gBattleResources->bufferA[gActiveBattler][2] != 0)
            gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].partyStatusDelayTimer = 93;

        gBattlerControllerFuncs[gActiveBattler] = EndDrawPartyStatusSummary;
    }
}

static void EndDrawPartyStatusSummary(void)
{
    if (gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].partyStatusDelayTimer++ > 92)
    {
        gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].partyStatusDelayTimer = 0;
        PlayerPartnerBufferExecCompleted();
    }
}

static void PlayerPartnerHandleHidePartyStatusSummary(void)
{
    if (gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].partyStatusSummaryShown)
        gTasks[gBattlerStatusSummaryTaskId[gActiveBattler]].func = Task_HidePartyStatusSummary;
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleEndBounceEffect(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleSpriteInvisibility(void)
{
    if (IsBattlerSpritePresent(gActiveBattler))
    {
        gSprites[gBattlerSpriteIds[gActiveBattler]].invisible = gBattleResources->bufferA[gActiveBattler][1];
        CopyBattleSpriteInvisibility(gActiveBattler);
    }
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleBattleAnimation(void)
{
    if (!IsBattleSEPlaying(gActiveBattler))
    {
        u8 animationId = gBattleResources->bufferA[gActiveBattler][1];
        u16 argument = gBattleResources->bufferA[gActiveBattler][2] | (gBattleResources->bufferA[gActiveBattler][3] << 8);

        if (TryHandleLaunchBattleTableAnimation(gActiveBattler, gActiveBattler, gActiveBattler, animationId, argument))
            PlayerPartnerBufferExecCompleted();
        else
            gBattlerControllerFuncs[gActiveBattler] = CompleteOnFinishedBattleAnimation;
    }
}

static void PlayerPartnerHandleLinkStandbyMsg(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleResetActionMoveSelection(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerHandleEndLinkBattle(void)
{
    gBattleOutcome = gBattleResources->bufferA[gActiveBattler][1];
    FadeOutMapMusic(5);
    BeginFastPaletteFade(3);
    PlayerPartnerBufferExecCompleted();
    gBattlerControllerFuncs[gActiveBattler] = SetBattleEndCallbacks;
}

static void PlayerPartnerHandleBattleDebug(void)
{
    PlayerPartnerBufferExecCompleted();
}

static void PlayerPartnerCmdEnd(void)
{
}