#pragma once

/* Vector */
typedef float vec3_t[3];

/* MDL header */
typedef struct
{
	int ident;            /* magic number: "IDPO" */
	int version;          /* version: 6 */

	vec3_t scale;         /* scale factor */
	vec3_t translate;     /* translation vector */
	float boundingradius;
	vec3_t eyeposition;   /* eyes' position */

	int num_skins;        /* number of textures */
	int skinwidth;        /* texture width */
	int skinheight;       /* texture height */

	int num_verts;        /* number of vertices */
	int num_tris;         /* number of triangles */
	int num_frames;       /* number of frames */

	int synctype;         /* 0 = synchron, 1 = random */
	int flags;            /* state flag */
	float size;
} mdl_header_t;

/* Skin */
typedef struct
{
	int group;      /* 0 = single, 1 = group */
	unsigned char* data;  /* texture data */
} mdl_skin_t;

/* Group of pictures */
typedef struct 
{
	int group;     /* 1 = group */
	int nb;        /* number of pics */
	float* time;   /* time duration for each pic */
	unsigned char** data;  /* texture data */
} mdl_groupskin_t;

/* Texture coords */
typedef struct 
{
	int onseam;
	int s;
	int t;
} mdl_texcoord_t;

/* Triangle info */
typedef struct
{
	int facesfront;  /* 0 = backface, 1 = frontface */
	int vertex[3];   /* vertex indices */
} mdl_triangle_t;

/* Compressed vertex */
typedef struct
{
	unsigned char v[3];
	unsigned char normalIndex;
} mdl_vertex_t;

/* Simple frame */
typedef struct
{
	mdl_vertex_t bboxmin; /* bouding box min */
	mdl_vertex_t bboxmax; /* bouding box max */
	char name[16];
	mdl_vertex_t* verts;  /* vertex list of the frame */
} mdl_simpleframe_t;

/* Model frame */
typedef struct 
{
	int type;                        /* 0 = simple, !0 = group */
	mdl_simpleframe_t frame;  /* this program can't read models
								composed of group frames! */
} mdl_frame_t;

/* Group of simple frames */
typedef struct
{
	int type;                         /* !0 = group */
	mdl_vertex_t min;          /* min pos in all simple frames */
	mdl_vertex_t max;          /* max pos in all simple frames */
	float* time;                      /* time duration for each frame */
	mdl_simpleframe_t* frames; /* simple frame list */
} mdl_groupframe_t;