/***
 *
 *	Copyright (c) 1996-2002, Valve LLC. All rights reserved.
 *
 *	This product contains software technology licensed from Id
 *	Software, Inc. ("Id Technology").  Id Technology (c) 1996 Id Software, Inc.
 *	All Rights Reserved.
 *
 ****/

//
// spritegn.h: header file for sprite generation program
//

// **********************************************************
// * This file must be identical in the spritegen directory *
// * and in the Quake directory, because it's used to       *
// * pass data from one to the other via .spr files.        *
// **********************************************************

//-------------------------------------------------------
// This program generates .spr sprite package files.
// The format of the files is as follows:
//
// dsprite_t file header structure
// <repeat dsprite_t.numframes times>
//   <if spritegroup, repeat dspritegroup_t.numframes times>
//     dspriteframe_t frame header structure
//     sprite bitmap
//   <else (single sprite frame)>
//     dspriteframe_t frame header structure
//     sprite bitmap
// <endrepeat>
//-------------------------------------------------------

#ifdef INCLUDELIBS

#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <string.h>

#include "cmdlib.h"
#include "scriplib.h"
#include "lbmlib.h"

#endif

#define SPRITE_VERSION 2

// must match definition in modelgen.h
#ifndef SYNCTYPE_T
#define SYNCTYPE_T
typedef enum
{
	ST_SYNC = 0,
	ST_RAND
} synctype_t;
#endif

// TODO: shorten these?
typedef struct
{
	int ident;
	int version;
	int type;
	int texFormat;
	float boundingradius;
	int width;
	int height;
	int numframes;
	float beamlength;
	synctype_t synctype;
} dsprite_t;

#define SPR_VP_PARALLEL_UPRIGHT 0
#define SPR_FACING_UPRIGHT 1
#define SPR_VP_PARALLEL 2
#define SPR_ORIENTED 3
#define SPR_VP_PARALLEL_ORIENTED 4

#define SPR_NORMAL 0
#define SPR_ADDITIVE 1
#define SPR_INDEXALPHA 2
#define SPR_ALPHTEST 3

typedef struct
{
	int origin[2];
	int width;
	int height;
} dspriteframe_t;

typedef struct
{
	int numframes;
} dspritegroup_t;

typedef struct
{
	float interval;
} dspriteinterval_t;

typedef enum
{
	SPR_SINGLE = 0,
	SPR_GROUP
} spriteframetype_t;

typedef struct
{
	spriteframetype_t type;
} dspriteframetype_t;

#define IDSPRITEHEADER (('P' << 24) + ('S' << 16) + ('D' << 8) + 'I')
// little-endian "IDSP"
