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/**
* @file ballAndChain.c
* @ingroup Projectiles
*
* @brief Ball and Chain Projectile
*/
#include "entity.h"
#include "hitbox.h"
#include "projectile.h"
#include "physics.h"
typedef struct {
/*0x00*/ Entity base;
/*0x68*/ u8 unused1[19];
/*0x7b*/ u8 unk_7b;
/*0x7c*/ u8 unk_7c;
/*0x7d*/ u8 unused2;
/*0x7e*/ u8 unk_7e;
/*0x7f*/ s8 unk_7f;
} BallAndChainEntity;
typedef struct {
s8 x;
s8 y;
} PACKED PosOffset;
bool32 sub_080AB12C(Entity* this);
extern void (*const gUnk_0812A494[])(BallAndChainEntity*);
extern const PosOffset gUnk_0812A4A8[];
void BallAndChain(BallAndChainEntity* this) {
gUnk_0812A494[super->type](this);
}
void sub_080AB074(BallAndChainEntity* this) {
BallAndChainEntity* parent;
const s16* tmp;
u32 factor;
parent = (BallAndChainEntity*)super->parent;
if (parent->base.next == NULL) {
DeleteThisEntity();
}
if (super->action == 0) {
if (sub_080AB12C(super) == FALSE) {
return;
}
super->action = 1;
super->frameIndex = 0;
super->spritePriority.b0 = 3;
}
sub_0806FA90(super->parent, super, 0, -10 + -parent->unk_7f);
super->x.WORD += gSineTable[parent->unk_7c] * (parent->unk_7e << 8);
super->y.WORD -= gSineTable[parent->unk_7c + 0x40] * (parent->unk_7e << 8);
super->z.HALF.HI += parent->unk_7f;
if (parent->unk_7b != 0) {
parent = (BallAndChainEntity*)CreateProjectile(BALL_AND_CHAIN);
if (parent != NULL) {
parent->base.type = 4;
CopyPositionAndSpriteOffset(super, &parent->base);
}
}
}
bool32 sub_080AB12C(Entity* this) {
Entity* entity;
if (gEntCount > 0x44) {
return FALSE;
}
entity = CreateProjectile(BALL_AND_CHAIN);
entity->type = 1;
entity->parent = this;
entity = CreateProjectile(BALL_AND_CHAIN);
entity->type = 2;
entity->parent = this;
entity = CreateProjectile(BALL_AND_CHAIN);
entity->type = 3;
entity->parent = this;
return TRUE;
}
void sub_080AB170(BallAndChainEntity* this) {
s32 val;
s32 type;
BallAndChainEntity* ent;
Entity* parent = super->parent;
if (parent->next == NULL) {
DeleteThisEntity();
}
if (super->action == 0) {
super->action = 1;
super->spritePriority.b1 = 0;
super->frameIndex = 5;
super->spritePriority.b0 = 3;
super->hitbox = (Hitbox*)&gHitbox_22;
}
ent = (BallAndChainEntity*)parent->parent;
if (this->unk_7c != ent->unk_7c) {
super->flags |= ENT_COLLIDE;
} else {
super->flags &= ~ENT_COLLIDE;
}
this->unk_7c = ent->unk_7c;
if ((ent->base.frame & 0x20) == 0) {
u8 index = ent->base.frame & 0x1f;
PosOffset* pOffset = (PosOffset*)((s8*)gUnk_0812A4A8 + index);
sub_0806FA90(&ent->base, super, pOffset->x, pOffset->y);
} else {
sub_0806FA90(&ent->base, super, 0, -10);
}
val = (parent->x.HALF.HI - super->x.HALF.HI) * super->type;
if (val < 0) {
val += 3;
}
super->x.HALF.HI += (val >> 2);
val = (parent->y.HALF.HI - super->y.HALF.HI) * super->type;
if (val < 0) {
val += 3;
}
super->y.HALF.HI += (val >> 2);
val = (parent->z.HALF.HI - super->z.HALF.HI) * super->type;
if (val < 0) {
val += 3;
}
super->z.HALF.HI += (val >> 2);
}
void sub_080AB26C(BallAndChainEntity* this) {
if (super->action == 0) {
super->action = 1;
super->timer = 5;
super->frameIndex = 0;
#ifndef EU
super->spritePriority.b1 = 0;
#endif
}
if (--super->timer == 0) {
DeleteThisEntity();
} else {
super->frameIndex++;
}
}
void (*const gUnk_0812A494[])(BallAndChainEntity*) = {
sub_080AB074, sub_080AB170, sub_080AB170, sub_080AB170, sub_080AB26C,
};
const PosOffset gUnk_0812A4A8[] = {
{ 6, -16 }, { 10, -14 }, { 10, -16 }, { 8, -16 }, { -4, -14 }, { -8, -14 }, { -4, -10 }, { 4, -10 },
{ -6, -14 }, { -8, -16 }, { -10, -14 }, { -8, -12 }, { 4, -14 }, { 8, -14 }, { 4, -10 }, { -4, -10 },
};
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