/*
Copyright (C) 1996-1997 Id Software, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
//
// 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 "dictlib.h"
#include "trilib.h"
#include "lbmlib.h"
#include "mathlib.h"

#endif

#define SPRITE_VERSION  1

// 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;
  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

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"