#include "global.h"
#include "rom_8077ABC.h"
#include "trig.h"
#include "battle_anim.h"
#include "sound.h"

extern s16 gBattleAnimArgs[];
extern u8 gAnimBankAttacker;
extern u8 gAnimBankTarget;

static void sub_80D2704(struct Sprite* sprite);

// orbit_fast (a quickly moving fast circular motion of a sprite around an object.)
// Used by Hidden Power.

void sub_80D26A4(struct Sprite* sprite)
{
    sprite->pos1.x = GetBankPosition(gAnimBankAttacker, 2);
    sprite->pos1.y = GetBankPosition(gAnimBankAttacker, 3);
    sprite->affineAnimPaused = 1;
    sprite->data[0] = gBattleAnimArgs[0];
    sprite->data[1] = gBattleAnimArgs[1];
    sprite->data[7] = sub_8079E90(gAnimBankAttacker);
    sprite->callback = sub_80D2704;
    sub_80D2704(sprite);
}

void sub_80D2704(struct Sprite* sprite)
{
    if ((u16)(sprite->data[1] - 0x40) <= 0x7F)
        sprite->subpriority = sprite->data[7] + 1;
    else
        sprite->subpriority = sprite->data[7] - 1;

    sprite->pos2.x = Sin(sprite->data[1], sprite->data[2] >> 8);
    sprite->pos2.y = Cos(sprite->data[1], sprite->data[3] >> 8);
    sprite->data[1] = (sprite->data[1] + 9) & 0xFF;
    switch (sprite->data[5])
    {
    case 1:
        sprite->data[2] -= 0x400;
        sprite->data[3] -= 0x100;
        if (++sprite->data[4] == sprite->data[0])
        {
            sprite->data[5] = 2;
            return;
        }
        break;
    case 0:
        sprite->data[2] += 0x400;
        sprite->data[3] += 0x100;
        if (++sprite->data[4] == sprite->data[0])
        {
            sprite->data[4] = 0;
            sprite->data[5] = 1;
        }
        break;
    }

    if ((u16)gBattleAnimArgs[7] == 0xFFFF)
        DestroyAnimSprite(sprite);
}