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/**
* @file railtrack.c
* @ingroup Objects
*
* @brief Railtrack object
*/
#include "asm.h"
#include "entity.h"
#include "flags.h"
#include "room.h"
#include "sound.h"
#include "tiles.h"
#include "map.h"
typedef struct {
/*0x00*/ Entity base;
/*0x68*/ u8 unused1[8];
/*0x70*/ u16* unk_70;
/*0x74*/ u16 unk_74;
/*0x76*/ u16 unk_76;
/*0x78*/ u16 unk_78;
/*0x7a*/ u16 flagValue;
/*0x7c*/ union SplitHWord unk_7c;
/*0x7e*/ u8 unused2[8];
/*0x86*/ u16 flag;
} RailtrackEntity;
void sub_08085394(RailtrackEntity* this);
void sub_0808543C(RailtrackEntity* this);
void Railtrack_Init(RailtrackEntity* this);
void Railtrack_Action1(RailtrackEntity* this);
void Railtrack_Action2(RailtrackEntity* this);
void Railtrack_Action3(RailtrackEntity* this);
u32 sub_080854A8(RailtrackEntity* this);
extern s8 gUnk_080B4488[][2];
void Railtrack(RailtrackEntity* this) {
static void (*const Railtrack_Actions[])(RailtrackEntity*) = {
Railtrack_Init,
Railtrack_Action1,
Railtrack_Action2,
Railtrack_Action3,
};
Railtrack_Actions[super->action](this);
}
void Railtrack_Init(RailtrackEntity* this) {
u32 uVar1;
super->action = 1;
super->spriteSettings.draw = 1;
super->spritePriority.b0 = 7;
if ((super->type2 & 1) != 0) {
this->unk_7c.HWORD = -1;
} else {
this->unk_7c.HWORD = 1;
}
super->animationState = super->type2 & 2;
if (super->type == 3) {
uVar1 = CheckFlags(this->flag);
this->flagValue = uVar1;
if ((u16)(uVar1 & -1) != 0) {
super->animationState = (super->animationState + 2) & 3;
super->action = 3;
}
}
InitializeAnimation(super, super->animationState);
this->unk_70 = &GetLayerByIndex(super->collisionLayer)->mapData[COORD_TO_TILE(super)];
sub_08085394(this);
}
void Railtrack_Action1(RailtrackEntity* this) {
if (CheckFlags(this->flag)) {
super->action = 2;
super->subtimer = 8;
if (super->type == 1) {
ClearFlag(this->flag);
}
super->animationState = (super->animationState + this->unk_7c.HALF.LO) & 3;
InitializeAnimation(super, super->animationState);
sub_0808543C(this);
EnqueueSFX(SFX_151);
}
}
void Railtrack_Action2(RailtrackEntity* this) {
if (--super->subtimer == 0) {
super->action = 3;
super->subtimer = super->timer;
this->flagValue = CheckFlags(this->flag);
super->animationState = (super->animationState + this->unk_7c.HALF.LO) & 3;
InitializeAnimation(super, super->animationState);
sub_08085394(this);
EnqueueSFX(SFX_151);
}
}
void Railtrack_Action3(RailtrackEntity* this) {
if (sub_080854A8(this) == 0) {
switch (super->type) {
case 0:
case 1:
break;
case 2:
if (CheckFlags(this->flag) == 0) {
super->action = 1;
return;
}
break;
case 3:
if (CheckFlags(this->flag) == this->flagValue) {
super->subtimer = 255;
} else {
super->subtimer = 1;
}
}
if (--super->subtimer == 0) {
super->action = 2;
super->subtimer = 8;
super->animationState = (super->animationState + this->unk_7c.HALF.LO) & 3;
InitializeAnimation(super, super->animationState);
sub_0808543C(this);
EnqueueSFX(SFX_151);
}
}
}
static const u16 gUnk_081205E0[] = { SPECIAL_TILE_24, SPECIAL_TILE_25 };
void sub_08085394(RailtrackEntity* this) {
u32 specialTile;
u16* layerData;
u32 tilePos;
s8 offsetset;
specialTile = gUnk_081205E0[super->animationState / 2];
offsetset = gUnk_080B4488[super->animationState / 2][0];
layerData = this->unk_70;
tilePos = COORD_TO_TILE(super);
this->unk_74 = *(layerData - offsetset);
SetTile(specialTile, tilePos - offsetset, super->collisionLayer);
this->unk_76 = layerData[0x0];
SetTile(specialTile, tilePos, super->collisionLayer);
this->unk_78 = layerData[offsetset];
SetTile(specialTile, tilePos + offsetset, super->collisionLayer);
}
void sub_0808543C(RailtrackEntity* this) {
s8* cVar1;
u32 tilePos;
s8 offset;
offset = gUnk_080B4488[super->animationState / 2][0];
tilePos = COORD_TO_TILE(super);
SetTile(this->unk_74, tilePos - offset, super->collisionLayer);
SetTile(this->unk_76, tilePos, super->collisionLayer);
SetTile(this->unk_78, tilePos + offset, super->collisionLayer);
}
u32 sub_080854A8(RailtrackEntity* this) {
u16 var0;
u16* var1;
s8* var2;
var0 = gUnk_081205E0[super->animationState / 2];
var2 = gUnk_080B4488[super->animationState / 2];
var1 = this->unk_70;
if (var0 != *(var1 - var2[0])) {
return TRUE;
}
if (var0 != *var1) {
return TRUE;
}
if (var0 != *(var1 + var2[0])) {
return TRUE;
}
return FALSE;
}
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