#ifndef ENTITY_H
#define ENTITY_H

#include "global.h"

typedef struct {
    void* entity1;
    void* entity2;
    u8 filler[14];
} UnkStruct;

typedef struct {
    u8 type;
    u8 subtype;
    u8 parameter1;
    u8 parameter2;
} EntityType;

union SplitWord {
    s32 WORD;
    struct {
        s16 LO, HI;
    } HALF;
};

union SplitHWord {
    u16 HWORD;
    struct {
        u8 LO, HI;
    } PACKED HALF;
} PACKED;

typedef struct Entity {
    u32* field_0x0;
    u32* field_0x4;
    EntityType entityType;
    u8 action;
    u8 previousActionFlag;
    u8 parameter3;
    u8 field_0xf;
    u8 flags;
    u8 scriptedScene : 4;
    u8 scriptedScene2 : 4;
    s16 spriteTileSize;
    u8 animationState;
    u8 direction;
    u8 possibleBool;
    u8 field_0x17;
    union {
        u8 raw;
        struct {
            u8 ss0 : 2;
            u8 ss2 : 1;
            u8 ss3 : 1;
            u8 ss4 : 1;
            u8 ss5 : 1;
            u8 ss6 : 1;
            u8 ss7 : 1;
        } PACKED b;
    } PACKED spriteSettings;

    struct {
        u8 b0 : 2;
        u8 b1 : 2;
        u8 b2 : 2;
        u8 b3 : 2;
    } PACKED spriteOrder;

    u8 palette;
    struct {
        u8 b0 : 4;
        u8 b1 : 1;
        u8 b2 : 3;
    } PACKED spriteOrientation;
    u8 filler[2];
    u8 animationList;
    u8 field_1f;
    s32 field_0x20;
    s16 nonPlanarMovement;
    u8 spriteAnimation[3];
    struct {
        u8 b0 : 3;
        u8 b1 : 5;
    } PACKED ticks;
    u16 collisions;
    union SplitWord x;
    union SplitWord y;
    union SplitWord height; // todo
    u8 collisionLayer;
    s8 interactType;
    u8 field_0x3a;
    u8 flags2;
    u8 field_0x3c;
    u8 field_0x3d;
    u8 field_0x3e;
    u8 damageType;
    u8 field_0x40;
    u8 bitfield;
    u8 field_0x42;
    u8 field_0x43;
    u8 field_0x44;
    u8 currentHealth;
    s16 field_0x46;
    u32* boundingBox;
    u8 field_0x4c;
    u8 field_0x4d;
    u8 field_0x4e;
    u8 field_0x4f;
    struct Entity* parent;
    struct Entity* attachedEntity;
    u8 field_0x58;
    u8 animTime;
    union {
        u8 all;
        struct {
            u8 f0 : 1;
            u8 f1 : 5;
            u8 f2 : 1;
            u8 f3 : 1;
        } PACKED b;
    } PACKED frames;
    u8 gfx;
    u8 field_0x5c;
    u8 field_0x5d;
    u8 field_0x5e;
    u8 field_0x5f;
    u16 spriteVramOffset;
    u8 spriteOffsetX;
    u8 spriteOffsetY;
    u32* otherEntity;
    u8 field_0x68;
    u8 field_0x69;
    union SplitHWord field_0x6a;
    u8 field_0x6c;
    u8 field_0x6d;
    u8 filler4[6];
    u32* heldObjectPtr;
    u8 filler3[2];
    u16 itemCooldown;
    u32 field_0x7c;
    u16 field_0x80;
    u16 field_0x82;
    union SplitHWord cutsceneBeh;
    u16 field_0x86;

} Entity;

#define COORD_TO_TILE(entity) ((((entity->x.HALF.HI - gRoomControls.roomOriginX) >> 4) & 0x3fU) | (((entity->y.HALF.HI - gRoomControls.roomOriginY) >> 4) & 0x3fU) << 6)

#endif