/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena source code 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.

Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
//


#define	CMD_BACKUP			64	
#define	CMD_MASK			(CMD_BACKUP - 1)
// allow a lot of command backups for very fast systems
// multiple commands may be combined into a single packet, so this
// needs to be larger than PACKET_BACKUP


#define	MAX_ENTITIES_IN_SNAPSHOT	256

// snapshots are a view of the server at a given time

// Snapshots are generated at regular time intervals by the server,
// but they may not be sent if a client's rate level is exceeded, or
// they may be dropped by the network.
typedef struct {
	int				snapFlags;			// SNAPFLAG_RATE_DELAYED, etc
	int				ping;

	int				serverTime;		// server time the message is valid for (in msec)

	byte			areamask[MAX_MAP_AREA_BYTES];		// portalarea visibility bits

	playerState_t	ps;						// complete information about the current player at this time

	int				numEntities;			// all of the entities that need to be presented
	entityState_t	entities[MAX_ENTITIES_IN_SNAPSHOT];	// at the time of this snapshot

	int				numServerCommands;		// text based server commands to execute when this
	int				serverCommandSequence;	// snapshot becomes current
} snapshot_t;

enum {
  CGAME_EVENT_NONE,
  CGAME_EVENT_TEAMMENU,
  CGAME_EVENT_SCOREBOARD,
  CGAME_EVENT_EDITHUD
};


/*
==================================================================

functions imported from the main executable

==================================================================
*/

#define	CGAME_IMPORT_API_VERSION	4

typedef enum {
	CG_PRINT,
	CG_ERROR,
	CG_MILLISECONDS,
	CG_CVAR_REGISTER,
	CG_CVAR_UPDATE,
	CG_CVAR_SET,
	CG_CVAR_VARIABLESTRINGBUFFER,
	CG_ARGC,
	CG_ARGV,
	CG_ARGS,
	CG_FS_FOPENFILE,
	CG_FS_READ,
	CG_FS_WRITE,
	CG_FS_FCLOSEFILE,
	CG_SENDCONSOLECOMMAND,
	CG_ADDCOMMAND,
	CG_SENDCLIENTCOMMAND,
	CG_UPDATESCREEN,
	CG_CM_LOADMAP,
	CG_CM_NUMINLINEMODELS,
	CG_CM_INLINEMODEL,
	CG_CM_LOADMODEL,
	CG_CM_TEMPBOXMODEL,
	CG_CM_POINTCONTENTS,
	CG_CM_TRANSFORMEDPOINTCONTENTS,
	CG_CM_BOXTRACE,
	CG_CM_TRANSFORMEDBOXTRACE,
	CG_CM_MARKFRAGMENTS,
	CG_S_STARTSOUND,
	CG_S_STARTLOCALSOUND,
	CG_S_CLEARLOOPINGSOUNDS,
	CG_S_ADDLOOPINGSOUND,
	CG_S_UPDATEENTITYPOSITION,
	CG_S_RESPATIALIZE,
	CG_S_REGISTERSOUND,
	CG_S_STARTBACKGROUNDTRACK,
	CG_R_LOADWORLDMAP,
	CG_R_REGISTERMODEL,
	CG_R_REGISTERSKIN,
	CG_R_REGISTERSHADER,
	CG_R_CLEARSCENE,
	CG_R_ADDREFENTITYTOSCENE,
	CG_R_ADDPOLYTOSCENE,
	CG_R_ADDLIGHTTOSCENE,
	CG_R_RENDERSCENE,
	CG_R_SETCOLOR,
	CG_R_DRAWSTRETCHPIC,
	CG_R_MODELBOUNDS,
	CG_R_LERPTAG,
	CG_GETGLCONFIG,
	CG_GETGAMESTATE,
	CG_GETCURRENTSNAPSHOTNUMBER,
	CG_GETSNAPSHOT,
	CG_GETSERVERCOMMAND,
	CG_GETCURRENTCMDNUMBER,
	CG_GETUSERCMD,
	CG_SETUSERCMDVALUE,
	CG_R_REGISTERSHADERNOMIP,
	CG_MEMORY_REMAINING,
	CG_R_REGISTERFONT,
	CG_KEY_ISDOWN,
	CG_KEY_GETCATCHER,
	CG_KEY_SETCATCHER,
	CG_KEY_GETKEY,
 	CG_PC_ADD_GLOBAL_DEFINE,
	CG_PC_LOAD_SOURCE,
	CG_PC_FREE_SOURCE,
	CG_PC_READ_TOKEN,
	CG_PC_SOURCE_FILE_AND_LINE,
	CG_S_STOPBACKGROUNDTRACK,
	CG_REAL_TIME,
	CG_SNAPVECTOR,
	CG_REMOVECOMMAND,
	CG_R_LIGHTFORPOINT,
	CG_CIN_PLAYCINEMATIC,
	CG_CIN_STOPCINEMATIC,
	CG_CIN_RUNCINEMATIC,
	CG_CIN_DRAWCINEMATIC,
	CG_CIN_SETEXTENTS,
	CG_R_REMAP_SHADER,
	CG_S_ADDREALLOOPINGSOUND,
	CG_S_STOPLOOPINGSOUND,

	CG_CM_TEMPCAPSULEMODEL,
	CG_CM_CAPSULETRACE,
	CG_CM_TRANSFORMEDCAPSULETRACE,
	CG_R_ADDADDITIVELIGHTTOSCENE,
	CG_GET_ENTITY_TOKEN,
	CG_R_ADDPOLYSTOSCENE,
	CG_R_INPVS,
	// 1.32
	CG_FS_SEEK,

/*
	CG_LOADCAMERA,
	CG_STARTCAMERA,
	CG_GETCAMERAINFO,
*/

	CG_FLOOR = 107,
	CG_CEIL,
	CG_TESTPRINTINT,
	CG_TESTPRINTFLOAT,
	CG_ACOS,

	// engine extensions
	CG_R_ADDREFENTITYTOSCENE2,
	CG_R_FORCEFIXEDDLIGHTS,
	CG_R_ADDLINEARLIGHTTOSCENE,
	CG_IS_RECORDING_DEMO,
	CG_CVAR_SETDESCRIPTION,
	CG_TRAP_GETVALUE = COM_TRAP_GETVALUE,

} cgameImport_t;


/*
==================================================================

functions exported to the main executable

==================================================================
*/

typedef enum {
	CG_INIT,
//	void CG_Init( int serverMessageNum, int serverCommandSequence, int clientNum )
	// called when the level loads or when the renderer is restarted
	// all media should be registered at this time
	// cgame will display loading status by calling SCR_Update, which
	// will call CG_DrawInformation during the loading process
	// reliableCommandSequence will be 0 on fresh loads, but higher for
	// demos, tourney restarts, or vid_restarts

	CG_SHUTDOWN,
//	void (*CG_Shutdown)( void );
	// opportunity to flush and close any open files

	CG_CONSOLE_COMMAND,
//	qboolean (*CG_ConsoleCommand)( void );
	// a console command has been issued locally that is not recognized by the
	// main game system.
	// use Cmd_Argc() / Cmd_Argv() to read the command, return qfalse if the
	// command is not known to the game

	CG_DRAW_ACTIVE_FRAME,
//	void (*CG_DrawActiveFrame)( int serverTime, stereoFrame_t stereoView, qboolean demoPlayback );
	// Generates and draws a game scene and status information at the given time.
	// If demoPlayback is set, local movement prediction will not be enabled

	CG_CROSSHAIR_PLAYER,
//	int (*CG_CrosshairPlayer)( void );

	CG_LAST_ATTACKER,
//	int (*CG_LastAttacker)( void );

	CG_KEY_EVENT, 
//	void	(*CG_KeyEvent)( int key, qboolean down );

	CG_MOUSE_EVENT,
//	void	(*CG_MouseEvent)( int dx, int dy );

	CG_EVENT_HANDLING,
//	void (*CG_EventHandling)(int type);

	CG_EXPORT_LAST,
} cgameExport_t;

//----------------------------------------------
