#include "global.h"
#include "entity.h"
#include "link.h"
#include "flags.h"

extern u32 sub_080041A0(Entity*, Entity*, u32, u32);
void sub_08099ECC(Entity*);
extern void sub_0805E4E0(Entity*, u32);
extern void sub_0805B390(u32);
extern void CopyPosition(Entity*, Entity*);

extern void (*const gUnk_081237F8[])(Entity*);

void Object86(Entity* this) {
    gUnk_081237F8[this->action](this);
}

void sub_08099DD0(Entity* this) {
    this->collisionLayer = 1;
    this->spriteOrder.b3 = 3;
    this->ticks.b0 = 7;
    this->previousActionFlag = 0;
    if (GetInventoryValue(0x46)) {
        this->action = 4;
        this->frameIndex = 0;
    } else {
        this->action = 1;
        InitializeAnimation(this, 0);
    }
}

void sub_08099E10(Entity* this) {
    if (CheckLocalFlag(0x74)) {
        GetNextFrame(this);
        if ((this->frames.all == 1) && (this->previousActionFlag == 0)) {
            this->frames.all = 0;
            sub_08099ECC(this);
        }
        if (this->frames.b.f3) {
            this->action = 2;
            InitializeAnimation(this, 1);
        }
    }
}

void sub_08099E58(Entity *this)
{
  GetNextFrame(this);
  if (this->frames.b.f3) {
    this->frames.b.f3 = 0;
    this->actionDelay++;
    if (this->actionDelay == 3) {
      this->action = 3;
      this->frameIndex = 4;
    }
  }
}

void sub_08099E8C(Entity *this)
{
  if (sub_080041A0(this, &gLinkEntity, 0xc, 0xc)) {
    if (this->previousActionFlag == 0) {
      sub_08099ECC(this);
      sub_0805E4E0(this, 0x1e);
    }
    if (CheckLocalFlag(0x75)) {
      sub_0805B390(0x7);
    }
  }
}

void nullsub_534(Entity* this) {}

void sub_08099ECC(Entity *this)
{
  this->previousActionFlag = 1;
  CopyPosition(this, &gLinkEntity);
  gLinkState.linkAction = 3;
  gLinkState.filler12[4] = 0;
  gLinkState.flags.all |= 0x8000;
}