/***
*
*	Copyright (c) 1999, 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.
*
*   Use, distribution, and modification of this source code and/or resulting
*   object code is restricted to non-commercial enhancements to products from
*   Valve LLC.  All other use, distribution, or modification is prohibited
*   without written permission from Valve LLC.
*
****/
//
//  cdll_int.h
//
// 4-23-98  
// JOHN:  client dll interface declarations
//

#ifndef CDLL_INT_H
#define CDLL_INT_H

// this file is included by both the engine and the client-dll,
// so make sure engine declarations aren't done twice

typedef int HSPRITE;	// handle to a graphic

#define SCRINFO_SCREENFLASH 1
#define SCRINFO_STRETCHED	2

typedef struct
{
	int		iSize;
	int		iWidth;
	int		iHeight;
	int		iFlags;
	int		iCharHeight;
	short	charWidths[256];
} SCREENINFO;


typedef struct client_data_s
{
	// fields that cannot be modified  (ie. have no effect if changed)
	vec3_t origin;

	// fields that can be changed by the cldll
	float viewheight;
	float maxspeed;
	vec3_t viewangles;
	vec3_t punchangle;
	int		iKeyBits; // Keyboard bits
	int		iWeaponBits;
	float	fov;	// field of view
	float	view_idlescale; // view shake/rotate
	float   mouse_sensitivity;

} client_data_t;

typedef struct client_sprite_s
{
	char szName[64];
	char szSprite[64];
	int hspr;
	int iRes;
	wrect_t rc;
} client_sprite_t;

typedef struct
{
	int		effect;
	byte	r1, g1, b1, a1;		// 2 colors for effects
	byte	r2, g2, b2, a2;
	float	x;
	float	y;
	float	fadein;
	float	fadeout;
	float	holdtime;
	float	fxtime;
	const char *pName;
	const char *pMessage;
} client_textmessage_t;

typedef struct
{
	char *name;
	short ping;
	byte thisplayer;  // TRUE if this is the calling player

  // stuff that's unused at the moment,  but should be done
	byte spectator;
	byte packetloss;

	char *model;
	short topcolor;
	short bottomcolor;

} hud_player_info_t;


// this is by no means complete,  or even accurate
typedef struct cl_enginefuncs_s
{
	// sprite handlers
	HSPRITE (*pfnSPR_Load)			( const char *szPicName );
	int		(*pfnSPR_Frames)		( HSPRITE hPic );
	int		(*pfnSPR_Height)		( HSPRITE hPic, int frame );
	int		(*pfnSPR_Width)			( HSPRITE hPic, int frame );
	void	(*pfnSPR_Set)			( HSPRITE hPic, int r, int g, int b );
	void	(*pfnSPR_Draw)			( int frame, int x, int y, const wrect_t *prc);
	void	(*pfnSPR_DrawHoles)		( int frame, int x, int y, const wrect_t *prc );
	void	(*pfnSPR_DrawAdditive)	( int frame, int x, int y, const wrect_t *prc );
	void	(*pfnSPR_EnableScissor)	( int x, int y, int width, int height );
	void	(*pfnSPR_DisableScissor)( void );
	client_sprite_t *(*pfnSPR_GetList)		( char *psz, int *piCount);

	// screen handlers
	void	(*pfnFillRGBA)			( int x, int y, int width, int height, int r, int g, int b, int a);
	int		(*pfnGetScreenInfo)		( SCREENINFO *pscrinfo);
	void	(*pfnSetCrosshair)		( HSPRITE hspr, wrect_t rc, int r, int g, int b);

	// cvar handlers
	int		(*pfnRegisterVariable)  ( char *szName, char *szValue, int flags );
	float	(*pfnGetCvarFloat)		( char *szName );
	char*	(*pfnGetCvarString)		( char *szName );

	// command handlers
	int		(*pfnAddCommand)		( char *cmd_name, void (*function)(void) );
	int		(*pfnHookUserMsg)		( char *szMsgName, pfnUserMsgHook pfn );
	int		(*pfnServerCmd)			( char *szCmdString );
	int		(*pfnClientCmd)			( char *szCmdString );

	void	(*pfnGetPlayerInfo)		( int ent_num, hud_player_info_t *pinfo );

	// sound handlers
	void	(*pfnPlaySoundByName)	( char *szSound, float volume );
	void	(*pfnPlaySoundByIndex)	( int iSound, float volume );

	// vector helpers
	void  (*pfnAngleVectors)		(const float * vecAngles, float * forward, float * right, float * up);

	// text message system
	client_textmessage_t	*(*pfnTextMessageGet)	( const char *pName );
	int	  (*pfnDrawCharacter)		( int x, int y, int number, int r, int g, int b );
	int   (*pfnDrawConsoleString)	( int x, int y, char *string );
	void  (*pfnDrawConsoleStringLen) (  const char *string, int *length, int *height );
	void  (*pfnConsolePrint) ( const char *string );
	void  (*pfnCenterPrint) ( const char *string );

} cl_enginefunc_t;


// ! duplicate macro's!  really bad coding practice
// buttons
#define IN_ATTACK	(1 << 0)
#define IN_JUMP		(1 << 1)
#define IN_DUCK		(1 << 2)
#define IN_FORWARD	(1 << 3)
#define IN_BACK		(1 << 4)
#define IN_USE		(1 << 5)
#define IN_CANCEL	(1 << 6)
#define IN_LEFT		(1 << 7)
#define IN_RIGHT	(1 << 8)
#define IN_MOVELEFT	(1 << 9)
#define IN_MOVERIGHT (1 << 10)
#define IN_ATTACK2	(1 << 11)
#define IN_RUN      (1 << 12)
#define IN_RELOAD	(1 << 13)
#define IN_ALT1		(1 << 14)
#define IN_ALT2		(1 << 15)


#define CLDLL_INTERFACE_VERSION		6

extern void ClientDLL_Init( void ); // from cdll_int.c
extern void ClientDLL_Shutdown( void );
extern void ClientDLL_HudInit( void );
extern void ClientDLL_HudVidInit( void );
extern void	ClientDLL_UpdateClientData( void );
extern void ClientDLL_HudRedraw( int intermission );


#endif // CDLL_INT_H