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#include "global.h"
#include "rom_8077ABC.h"
#include "trig.h"
#include "battle_anim.h"
#include "sound.h"
#include "palette.h"
extern s16 gBattleAnimArgs[];
extern u8 gAnimBankAttacker;
extern u8 gAnimBankTarget;
extern u16 gUnknown_083D712C[4][6];
static void sub_80CEBC4(s16 a, s16 b, s16* c, s16* d, s8 e);
static void sub_80CEC1C(struct Sprite* sprite);
// note_wave
// Used by Grasswhistle, Belly Drum, and Sing.
// rainbow effect for musical notes
void sub_80CEA20(u8 taskId)
{
u16 i;
u16 j;
u16 index;
index = IndexOfSpritePaletteTag(gUnknown_083D712C[0][0]);
if (index != 0xFF)
{
index = (index << 4) + 0x100;
for (i = 1; i < 6; i++)
{
gPlttBufferFaded[index + i] = gUnknown_083D712C[0][i];
}
}
for (j = 1; j < 4; j++)
{
index = AllocSpritePalette(gUnknown_083D712C[j][0]);
if (index != 0xFF)
{
index = (index << 4) + 0x100;
for (i = 1; i < 6; i++)
{
gPlttBufferFaded[index + i] = gUnknown_083D712C[j][i];
}
}
}
DestroyAnimVisualTask(taskId);
}
// clears the rainbow effect for musical notes.
void sub_80CEAD8(u8 taskId)
{
u16 i;
for (i = 1; i < 4; i++)
{
FreeSpritePaletteByTag(gUnknown_083D712C[i][0]);
}
DestroyAnimVisualTask(taskId);
}
void sub_80CEB0C(struct Sprite* sprite)
{
u8 index;
u8 a;
u8 b;
sub_8078650(sprite);
StartSpriteAnim(sprite, gBattleAnimArgs[0]);
if ((index = IndexOfSpritePaletteTag(gUnknown_083D712C[gBattleAnimArgs[1]][0])) != 0xFF)
sprite->oam.paletteNum = index;
sprite->data[1] = gBattleAnimArgs[1];
sprite->data[2] = 0;
sprite->data[3] = gBattleAnimArgs[2];
if (IsContest())
{
a = 0x30;
b = 0x28;
}
else
{
a = GetBankPosition(gAnimBankTarget, 2);
b = GetBankPosition(gAnimBankTarget, 3);
}
sprite->data[4] = sprite->pos1.x << 4;
sprite->data[5] = sprite->pos1.y << 4;
sub_80CEBC4(a - sprite->pos1.x, b - sprite->pos1.y, &sprite->data[6], &sprite->data[7], 0x28);
sprite->callback = sub_80CEC1C;
}
void sub_80CEBC4(s16 a, s16 b, s16* c, s16* d, s8 e)
{
int f;
int g;
if (a < 0)
e = -e;
f = a << 8;
g = f / e;
if (g == 0)
g = 1;
*c = f / g;
*d = (b << 8) / g;
}
void sub_80CEC1C(struct Sprite* sprite)
{
int b;
s16 a;
int c;
u8 index;
sprite->data[0]++;
b = sprite->data[0] * 5 - ((sprite->data[0] * 5 / 256) << 8);
sprite->data[4] += sprite->data[6];
sprite->data[5] += sprite->data[7];
sprite->pos1.x = sprite->data[4] >> 4;
sprite->pos1.y = sprite->data[5] >> 4;
sprite->pos2.y = Sin(b, 15);
a = (u16)sprite->pos1.y;
c = (u16)sprite->pos1.x;
if ((u32)((c + 16) << 16) > (0x110) << 16 || a < -16 || a > 0x80)
{
move_anim_8074EE0(sprite);
}
else
{
if (sprite->data[3] && ++sprite->data[2] > sprite->data[3])
{
sprite->data[2] = 0;
if (++sprite->data[1] > 3)
sprite->data[1] = 0;
index = IndexOfSpritePaletteTag(gUnknown_083D712C[sprite->data[1]][0]);
if (index != 0xFF)
sprite->oam.paletteNum = index;
}
}
}
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