/*
	This file is part of Warzone 2100.
	Copyright (C) 1999-2004  Eidos Interactive
	Copyright (C) 2005-2007  Warzone Resurrection Project

	Warzone 2100 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.

	Warzone 2100 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 Warzone 2100; if not, write to the Free Software
	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/***************************************************************************/
/*! \file anim.h
 * \brief Animation types and function headers
 *
 * Gareth Jones 11/7/97
 */
/***************************************************************************/

#ifndef _ANIM_H_
#define _ANIM_H_

/***************************************************************************/

#include <physfs.h>

#include "lib/framework/types.h"
#include "lib/ivis_common/imd.h"
#include "maxpidef.h"

/***************************************************************************/

#define	ANIM_MAX_STR			256
#define	ANIM_DELAYED	0xFFFE
#define	NO_ANIM			0xFFFD
#define	NO_IMD			0xFFFC

/***************************************************************************/

enum{ ANIM_2D, ANIM_3D_FRAMES, ANIM_3D_TRANS };

/***************************************************************************/

struct ANIM_STATE;
struct BASEANIM;

#define ANIM_BASE_ELEMENTS						\
	char				szFileName[ANIM_MAX_STR];	\
	char				animType;				\
	UWORD				uwID;					\
	UWORD				uwFrameRate;			\
	UWORD				uwStates;				\
	UWORD				uwObj;					\
	UWORD				uwAnimTime;				\
	UBYTE				ubType;					\
	struct ANIM_STATE	*psStates;				\
	struct BASEANIM		*psNext;

/* ensure ANIM2D/3D structs same size */
#define ANIM_2D_ELEMENTS						\
	ANIM_BASE_ELEMENTS							\
	iTexture		*psFrames;						\
	UWORD		uwBmapWidth;	/* width of container bitmap */

/* ensure ANIM2D/3D structs same size */
#define ANIM_3D_ELEMENTS						\
	ANIM_BASE_ELEMENTS							\
	iIMDShape	*psFrames;						\
	iIMDShape	**apFrame;

/***************************************************************************/

typedef struct VECTOR3D
{
	SDWORD	x, y, z;
}
VECTOR3D;

typedef struct ANIM_STATE
{
	UWORD				uwFrame;		/* frame to play           */
	VECTOR3D			vecPos;
	VECTOR3D			vecAngle;
	VECTOR3D			vecScale;
}
ANIM_STATE;

typedef struct BASEANIM
{
	ANIM_BASE_ELEMENTS
}
BASEANIM;

typedef struct ANIM2D
{
	ANIM_2D_ELEMENTS
}
ANIM2D;

typedef struct ANIM3D
{
	ANIM_3D_ELEMENTS
}
ANIM3D;


/***************************************************************************/

typedef iIMDShape * (* GETSHAPEFUNC) ( char *pStr );

typedef struct ANIMGLOBALS
{
	BASEANIM		*psAnimList;
	UWORD			uwCurObj, uwCurState;
	GETSHAPEFUNC	pGetShapeFunc;
}
ANIMGLOBALS;



/***************************************************************************/

BOOL		anim_Init( GETSHAPEFUNC  );
BOOL		anim_Shutdown( void );
BASEANIM *	anim_LoadFromBuffer(char *pBuffer, UDWORD size);
BASEANIM *	anim_LoadFromFile(PHYSFS_file* fileHandle);
void		anim_ReleaseAnim( BASEANIM *psAnim );
BOOL		anim_Create3D( char szPieFileName[], UWORD uwFrames,
							UWORD uwFrameRate, UWORD uwObj,
							UBYTE ubType, UWORD uwID );
void		anim_BeginScript( void );
BOOL		anim_EndScript( void );
BOOL		anim_AddFrameToAnim( int iFrame, VECTOR3D vecPos,
									VECTOR3D vecRot, VECTOR3D vecScale );
BASEANIM *	anim_GetAnim( UWORD uwAnimID );
UWORD		anim_GetAnimID( char *szName );
iIMDShape *	anim_GetShapeFromID( UWORD uwID );
UWORD		anim_GetFrame3D( ANIM3D *psAnim, UWORD uwObj, UDWORD udwGameTime,
								UDWORD udwStartTime, UDWORD udwStartDelay,
								VECTOR3D *psVecPos, VECTOR3D *psVecRot,
								VECTOR3D *psVecScale );
void		anim_SetVals( char szFileName[], UWORD uwAnimID );

/***************************************************************************/

#endif	/* _ANIM_H_ */

/***************************************************************************/