* Copied ioq3 src to trunk

1 files changed, 1028 insertions, 0 deletions

diff --git a/src/client/cl_cgame.c b/src/client/cl_cgame.c
new file mode 100644
index 00000000..ed59b88c
--- /dev/null
+++ b/src/client/cl_cgame.c
@@ -0,0 +1,1028 @@
+/*
+===========================================================================
+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
+===========================================================================
+*/
+// cl_cgame.c  -- client system interaction with client game
+
+#include "client.h"
+
+#include "../botlib/botlib.h"
+
+extern	botlib_export_t	*botlib_export;
+
+extern qboolean loadCamera(const char *name);
+extern void startCamera(int time);
+extern qboolean getCameraInfo(int time, vec3_t *origin, vec3_t *angles);
+
+/*
+====================
+CL_GetGameState
+====================
+*/
+void CL_GetGameState( gameState_t *gs ) {
+	*gs = cl.gameState;
+}
+
+/*
+====================
+CL_GetGlconfig
+====================
+*/
+void CL_GetGlconfig( glconfig_t *glconfig ) {
+	*glconfig = cls.glconfig;
+}
+
+
+/*
+====================
+CL_GetUserCmd
+====================
+*/
+qboolean CL_GetUserCmd( int cmdNumber, usercmd_t *ucmd ) {
+	// cmds[cmdNumber] is the last properly generated command
+
+	// can't return anything that we haven't created yet
+	if ( cmdNumber > cl.cmdNumber ) {
+		Com_Error( ERR_DROP, "CL_GetUserCmd: %i >= %i", cmdNumber, cl.cmdNumber );
+	}
+
+	// the usercmd has been overwritten in the wrapping
+	// buffer because it is too far out of date
+	if ( cmdNumber <= cl.cmdNumber - CMD_BACKUP ) {
+		return qfalse;
+	}
+
+	*ucmd = cl.cmds[ cmdNumber & CMD_MASK ];
+
+	return qtrue;
+}
+
+int CL_GetCurrentCmdNumber( void ) {
+	return cl.cmdNumber;
+}
+
+
+/*
+====================
+CL_GetParseEntityState
+====================
+*/
+qboolean	CL_GetParseEntityState( int parseEntityNumber, entityState_t *state ) {
+	// can't return anything that hasn't been parsed yet
+	if ( parseEntityNumber >= cl.parseEntitiesNum ) {
+		Com_Error( ERR_DROP, "CL_GetParseEntityState: %i >= %i",
+			parseEntityNumber, cl.parseEntitiesNum );
+	}
+
+	// can't return anything that has been overwritten in the circular buffer
+	if ( parseEntityNumber <= cl.parseEntitiesNum - MAX_PARSE_ENTITIES ) {
+		return qfalse;
+	}
+
+	*state = cl.parseEntities[ parseEntityNumber & ( MAX_PARSE_ENTITIES - 1 ) ];
+	return qtrue;
+}
+
+/*
+====================
+CL_GetCurrentSnapshotNumber
+====================
+*/
+void	CL_GetCurrentSnapshotNumber( int *snapshotNumber, int *serverTime ) {
+	*snapshotNumber = cl.snap.messageNum;
+	*serverTime = cl.snap.serverTime;
+}
+
+/*
+====================
+CL_GetSnapshot
+====================
+*/
+qboolean	CL_GetSnapshot( int snapshotNumber, snapshot_t *snapshot ) {
+	clSnapshot_t	*clSnap;
+	int				i, count;
+
+	if ( snapshotNumber > cl.snap.messageNum ) {
+		Com_Error( ERR_DROP, "CL_GetSnapshot: snapshotNumber > cl.snapshot.messageNum" );
+	}
+
+	// if the frame has fallen out of the circular buffer, we can't return it
+	if ( cl.snap.messageNum - snapshotNumber >= PACKET_BACKUP ) {
+		return qfalse;
+	}
+
+	// if the frame is not valid, we can't return it
+	clSnap = &cl.snapshots[snapshotNumber & PACKET_MASK];
+	if ( !clSnap->valid ) {
+		return qfalse;
+	}
+
+	// if the entities in the frame have fallen out of their
+	// circular buffer, we can't return it
+	if ( cl.parseEntitiesNum - clSnap->parseEntitiesNum >= MAX_PARSE_ENTITIES ) {
+		return qfalse;
+	}
+
+	// write the snapshot
+	snapshot->snapFlags = clSnap->snapFlags;
+	snapshot->serverCommandSequence = clSnap->serverCommandNum;
+	snapshot->ping = clSnap->ping;
+	snapshot->serverTime = clSnap->serverTime;
+	Com_Memcpy( snapshot->areamask, clSnap->areamask, sizeof( snapshot->areamask ) );
+	snapshot->ps = clSnap->ps;
+	count = clSnap->numEntities;
+	if ( count > MAX_ENTITIES_IN_SNAPSHOT ) {
+		Com_DPrintf( "CL_GetSnapshot: truncated %i entities to %i\n", count, MAX_ENTITIES_IN_SNAPSHOT );
+		count = MAX_ENTITIES_IN_SNAPSHOT;
+	}
+	snapshot->numEntities = count;
+	for ( i = 0 ; i < count ; i++ ) {
+		snapshot->entities[i] = 
+			cl.parseEntities[ ( clSnap->parseEntitiesNum + i ) & (MAX_PARSE_ENTITIES-1) ];
+	}
+
+	// FIXME: configstring changes and server commands!!!
+
+	return qtrue;
+}
+
+/*
+=====================
+CL_SetUserCmdValue
+=====================
+*/
+void CL_SetUserCmdValue( int userCmdValue, float sensitivityScale ) {
+	cl.cgameUserCmdValue = userCmdValue;
+	cl.cgameSensitivity = sensitivityScale;
+}
+
+/*
+=====================
+CL_AddCgameCommand
+=====================
+*/
+void CL_AddCgameCommand( const char *cmdName ) {
+	Cmd_AddCommand( cmdName, NULL );
+}
+
+/*
+=====================
+CL_CgameError
+=====================
+*/
+void CL_CgameError( const char *string ) {
+	Com_Error( ERR_DROP, "%s", string );
+}
+
+
+/*
+=====================
+CL_ConfigstringModified
+=====================
+*/
+void CL_ConfigstringModified( void ) {
+	char		*old, *s;
+	int			i, index;
+	char		*dup;
+	gameState_t	oldGs;
+	int			len;
+
+	index = atoi( Cmd_Argv(1) );
+	if ( index < 0 || index >= MAX_CONFIGSTRINGS ) {
+		Com_Error( ERR_DROP, "configstring > MAX_CONFIGSTRINGS" );
+	}
+	// get everything after "cs <num>"
+	s = Cmd_ArgsFrom(2);
+
+	old = cl.gameState.stringData + cl.gameState.stringOffsets[ index ];
+	if ( !strcmp( old, s ) ) {
+		return;		// unchanged
+	}
+
+	// build the new gameState_t
+	oldGs = cl.gameState;
+
+	Com_Memset( &cl.gameState, 0, sizeof( cl.gameState ) );
+
+	// leave the first 0 for uninitialized strings
+	cl.gameState.dataCount = 1;
+		
+	for ( i = 0 ; i < MAX_CONFIGSTRINGS ; i++ ) {
+		if ( i == index ) {
+			dup = s;
+		} else {
+			dup = oldGs.stringData + oldGs.stringOffsets[ i ];
+		}
+		if ( !dup[0] ) {
+			continue;		// leave with the default empty string
+		}
+
+		len = strlen( dup );
+
+		if ( len + 1 + cl.gameState.dataCount > MAX_GAMESTATE_CHARS ) {
+			Com_Error( ERR_DROP, "MAX_GAMESTATE_CHARS exceeded" );
+		}
+
+		// append it to the gameState string buffer
+		cl.gameState.stringOffsets[ i ] = cl.gameState.dataCount;
+		Com_Memcpy( cl.gameState.stringData + cl.gameState.dataCount, dup, len + 1 );
+		cl.gameState.dataCount += len + 1;
+	}
+
+	if ( index == CS_SYSTEMINFO ) {
+		// parse serverId and other cvars
+		CL_SystemInfoChanged();
+	}
+
+}
+
+
+/*
+===================
+CL_GetServerCommand
+
+Set up argc/argv for the given command
+===================
+*/
+qboolean CL_GetServerCommand( int serverCommandNumber ) {
+	char	*s;
+	char	*cmd;
+	static char bigConfigString[BIG_INFO_STRING];
+	int argc;
+
+	// if we have irretrievably lost a reliable command, drop the connection
+	if ( serverCommandNumber <= clc.serverCommandSequence - MAX_RELIABLE_COMMANDS ) {
+		// when a demo record was started after the client got a whole bunch of
+		// reliable commands then the client never got those first reliable commands
+		if ( clc.demoplaying )
+			return qfalse;
+		Com_Error( ERR_DROP, "CL_GetServerCommand: a reliable command was cycled out" );
+		return qfalse;
+	}
+
+	if ( serverCommandNumber > clc.serverCommandSequence ) {
+		Com_Error( ERR_DROP, "CL_GetServerCommand: requested a command not received" );
+		return qfalse;
+	}
+
+	s = clc.serverCommands[ serverCommandNumber & ( MAX_RELIABLE_COMMANDS - 1 ) ];
+	clc.lastExecutedServerCommand = serverCommandNumber;
+
+	Com_DPrintf( "serverCommand: %i : %s\n", serverCommandNumber, s );
+
+rescan:
+	Cmd_TokenizeString( s );
+	cmd = Cmd_Argv(0);
+	argc = Cmd_Argc();
+
+	if ( !strcmp( cmd, "disconnect" ) ) {
+		// https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=552
+		// allow server to indicate why they were disconnected
+		if ( argc >= 2 )
+			Com_Error (ERR_SERVERDISCONNECT, va( "Server Disconnected - %s", Cmd_Argv( 1 ) ) );
+		else
+			Com_Error (ERR_SERVERDISCONNECT,"Server disconnected\n");
+	}
+
+	if ( !strcmp( cmd, "bcs0" ) ) {
+		Com_sprintf( bigConfigString, BIG_INFO_STRING, "cs %s \"%s", Cmd_Argv(1), Cmd_Argv(2) );
+		return qfalse;
+	}
+
+	if ( !strcmp( cmd, "bcs1" ) ) {
+		s = Cmd_Argv(2);
+		if( strlen(bigConfigString) + strlen(s) >= BIG_INFO_STRING ) {
+			Com_Error( ERR_DROP, "bcs exceeded BIG_INFO_STRING" );
+		}
+		strcat( bigConfigString, s );
+		return qfalse;
+	}
+
+	if ( !strcmp( cmd, "bcs2" ) ) {
+		s = Cmd_Argv(2);
+		if( strlen(bigConfigString) + strlen(s) + 1 >= BIG_INFO_STRING ) {
+			Com_Error( ERR_DROP, "bcs exceeded BIG_INFO_STRING" );
+		}
+		strcat( bigConfigString, s );
+		strcat( bigConfigString, "\"" );
+		s = bigConfigString;
+		goto rescan;
+	}
+
+	if ( !strcmp( cmd, "cs" ) ) {
+		CL_ConfigstringModified();
+		// reparse the string, because CL_ConfigstringModified may have done another Cmd_TokenizeString()
+		Cmd_TokenizeString( s );
+		return qtrue;
+	}
+
+	if ( !strcmp( cmd, "map_restart" ) ) {
+		// clear notify lines and outgoing commands before passing
+		// the restart to the cgame
+		Con_ClearNotify();
+		Com_Memset( cl.cmds, 0, sizeof( cl.cmds ) );
+		return qtrue;
+	}
+
+	// the clientLevelShot command is used during development
+	// to generate 128*128 screenshots from the intermission
+	// point of levels for the menu system to use
+	// we pass it along to the cgame to make apropriate adjustments,
+	// but we also clear the console and notify lines here
+	if ( !strcmp( cmd, "clientLevelShot" ) ) {
+		// don't do it if we aren't running the server locally,
+		// otherwise malicious remote servers could overwrite
+		// the existing thumbnails
+		if ( !com_sv_running->integer ) {
+			return qfalse;
+		}
+		// close the console
+		Con_Close();
+		// take a special screenshot next frame
+		Cbuf_AddText( "wait ; wait ; wait ; wait ; screenshot levelshot\n" );
+		return qtrue;
+	}
+
+	// we may want to put a "connect to other server" command here
+
+	// cgame can now act on the command
+	return qtrue;
+}
+
+
+/*
+====================
+CL_CM_LoadMap
+
+Just adds default parameters that cgame doesn't need to know about
+====================
+*/
+void CL_CM_LoadMap( const char *mapname ) {
+	int		checksum;
+
+	CM_LoadMap( mapname, qtrue, &checksum );
+}
+
+/*
+====================
+CL_ShutdonwCGame
+
+====================
+*/
+void CL_ShutdownCGame( void ) {
+	cls.keyCatchers &= ~KEYCATCH_CGAME;
+	cls.cgameStarted = qfalse;
+	if ( !cgvm ) {
+		return;
+	}
+	VM_Call( cgvm, CG_SHUTDOWN );
+	VM_Free( cgvm );
+	cgvm = NULL;
+}
+
+static int	FloatAsInt( float f ) {
+	int		temp;
+
+	*(float *)&temp = f;
+
+	return temp;
+}
+
+/*
+====================
+CL_CgameSystemCalls
+
+The cgame module is making a system call
+====================
+*/
+long CL_CgameSystemCalls( long *args ) {
+	switch( args[0] ) {
+	case CG_PRINT:
+		Com_Printf( "%s", VMA(1) );
+		return 0;
+	case CG_ERROR:
+		Com_Error( ERR_DROP, "%s", VMA(1) );
+		return 0;
+	case CG_MILLISECONDS:
+		return Sys_Milliseconds();
+	case CG_CVAR_REGISTER:
+		Cvar_Register( VMA(1), VMA(2), VMA(3), args[4] ); 
+		return 0;
+	case CG_CVAR_UPDATE:
+		Cvar_Update( VMA(1) );
+		return 0;
+	case CG_CVAR_SET:
+		Cvar_Set( VMA(1), VMA(2) );
+		return 0;
+	case CG_CVAR_VARIABLESTRINGBUFFER:
+		Cvar_VariableStringBuffer( VMA(1), VMA(2), args[3] );
+		return 0;
+	case CG_ARGC:
+		return Cmd_Argc();
+	case CG_ARGV:
+		Cmd_ArgvBuffer( args[1], VMA(2), args[3] );
+		return 0;
+	case CG_ARGS:
+		Cmd_ArgsBuffer( VMA(1), args[2] );
+		return 0;
+	case CG_FS_FOPENFILE:
+		return FS_FOpenFileByMode( VMA(1), VMA(2), args[3] );
+	case CG_FS_READ:
+		FS_Read2( VMA(1), args[2], args[3] );
+		return 0;
+	case CG_FS_WRITE:
+		FS_Write( VMA(1), args[2], args[3] );
+		return 0;
+	case CG_FS_FCLOSEFILE:
+		FS_FCloseFile( args[1] );
+		return 0;
+	case CG_FS_SEEK:
+		return FS_Seek( args[1], args[2], args[3] );
+	case CG_SENDCONSOLECOMMAND:
+		Cbuf_AddText( VMA(1) );
+		return 0;
+	case CG_ADDCOMMAND:
+		CL_AddCgameCommand( VMA(1) );
+		return 0;
+	case CG_REMOVECOMMAND:
+		Cmd_RemoveCommand( VMA(1) );
+		return 0;
+	case CG_SENDCLIENTCOMMAND:
+		CL_AddReliableCommand( VMA(1) );
+		return 0;
+	case CG_UPDATESCREEN:
+		// this is used during lengthy level loading, so pump message loop
+//		Com_EventLoop();	// FIXME: if a server restarts here, BAD THINGS HAPPEN!
+// We can't call Com_EventLoop here, a restart will crash and this _does_ happen
+// if there is a map change while we are downloading at pk3.
+// ZOID
+		SCR_UpdateScreen();
+		return 0;
+	case CG_CM_LOADMAP:
+		CL_CM_LoadMap( VMA(1) );
+		return 0;
+	case CG_CM_NUMINLINEMODELS:
+		return CM_NumInlineModels();
+	case CG_CM_INLINEMODEL:
+		return CM_InlineModel( args[1] );
+	case CG_CM_TEMPBOXMODEL:
+		return CM_TempBoxModel( VMA(1), VMA(2), /*int capsule*/ qfalse );
+	case CG_CM_TEMPCAPSULEMODEL:
+		return CM_TempBoxModel( VMA(1), VMA(2), /*int capsule*/ qtrue );
+	case CG_CM_POINTCONTENTS:
+		return CM_PointContents( VMA(1), args[2] );
+	case CG_CM_TRANSFORMEDPOINTCONTENTS:
+		return CM_TransformedPointContents( VMA(1), args[2], VMA(3), VMA(4) );
+	case CG_CM_BOXTRACE:
+		CM_BoxTrace( VMA(1), VMA(2), VMA(3), VMA(4), VMA(5), args[6], args[7], /*int capsule*/ qfalse );
+		return 0;
+	case CG_CM_CAPSULETRACE:
+		CM_BoxTrace( VMA(1), VMA(2), VMA(3), VMA(4), VMA(5), args[6], args[7], /*int capsule*/ qtrue );
+		return 0;
+	case CG_CM_TRANSFORMEDBOXTRACE:
+		CM_TransformedBoxTrace( VMA(1), VMA(2), VMA(3), VMA(4), VMA(5), args[6], args[7], VMA(8), VMA(9), /*int capsule*/ qfalse );
+		return 0;
+	case CG_CM_TRANSFORMEDCAPSULETRACE:
+		CM_TransformedBoxTrace( VMA(1), VMA(2), VMA(3), VMA(4), VMA(5), args[6], args[7], VMA(8), VMA(9), /*int capsule*/ qtrue );
+		return 0;
+	case CG_CM_MARKFRAGMENTS:
+		return re.MarkFragments( args[1], VMA(2), VMA(3), args[4], VMA(5), args[6], VMA(7) );
+	case CG_S_STARTSOUND:
+		S_StartSound( VMA(1), args[2], args[3], args[4] );
+		return 0;
+	case CG_S_STARTLOCALSOUND:
+		S_StartLocalSound( args[1], args[2] );
+		return 0;
+	case CG_S_CLEARLOOPINGSOUNDS:
+		S_ClearLoopingSounds(args[1]);
+		return 0;
+	case CG_S_ADDLOOPINGSOUND:
+		S_AddLoopingSound( args[1], VMA(2), VMA(3), args[4] );
+		return 0;
+	case CG_S_ADDREALLOOPINGSOUND:
+		S_AddRealLoopingSound( args[1], VMA(2), VMA(3), args[4] );
+		return 0;
+	case CG_S_STOPLOOPINGSOUND:
+		S_StopLoopingSound( args[1] );
+		return 0;
+	case CG_S_UPDATEENTITYPOSITION:
+		S_UpdateEntityPosition( args[1], VMA(2) );
+		return 0;
+	case CG_S_RESPATIALIZE:
+		S_Respatialize( args[1], VMA(2), VMA(3), args[4] );
+		return 0;
+	case CG_S_REGISTERSOUND:
+		return S_RegisterSound( VMA(1), args[2] );
+	case CG_S_STARTBACKGROUNDTRACK:
+		S_StartBackgroundTrack( VMA(1), VMA(2) );
+		return 0;
+	case CG_R_LOADWORLDMAP:
+		re.LoadWorld( VMA(1) );
+		return 0; 
+	case CG_R_REGISTERMODEL:
+		return re.RegisterModel( VMA(1) );
+	case CG_R_REGISTERSKIN:
+		return re.RegisterSkin( VMA(1) );
+	case CG_R_REGISTERSHADER:
+		return re.RegisterShader( VMA(1) );
+	case CG_R_REGISTERSHADERNOMIP:
+		return re.RegisterShaderNoMip( VMA(1) );
+	case CG_R_REGISTERFONT:
+		re.RegisterFont( VMA(1), args[2], VMA(3));
+	case CG_R_CLEARSCENE:
+		re.ClearScene();
+		return 0;
+	case CG_R_ADDREFENTITYTOSCENE:
+		re.AddRefEntityToScene( VMA(1) );
+		return 0;
+	case CG_R_ADDPOLYTOSCENE:
+		re.AddPolyToScene( args[1], args[2], VMA(3), 1 );
+		return 0;
+	case CG_R_ADDPOLYSTOSCENE:
+		re.AddPolyToScene( args[1], args[2], VMA(3), args[4] );
+		return 0;
+	case CG_R_LIGHTFORPOINT:
+		return re.LightForPoint( VMA(1), VMA(2), VMA(3), VMA(4) );
+	case CG_R_ADDLIGHTTOSCENE:
+		re.AddLightToScene( VMA(1), VMF(2), VMF(3), VMF(4), VMF(5) );
+		return 0;
+	case CG_R_ADDADDITIVELIGHTTOSCENE:
+		re.AddAdditiveLightToScene( VMA(1), VMF(2), VMF(3), VMF(4), VMF(5) );
+		return 0;
+	case CG_R_RENDERSCENE:
+		re.RenderScene( VMA(1) );
+		return 0;
+	case CG_R_SETCOLOR:
+		re.SetColor( VMA(1) );
+		return 0;
+	case CG_R_DRAWSTRETCHPIC:
+		re.DrawStretchPic( VMF(1), VMF(2), VMF(3), VMF(4), VMF(5), VMF(6), VMF(7), VMF(8), args[9] );
+		return 0;
+	case CG_R_MODELBOUNDS:
+		re.ModelBounds( args[1], VMA(2), VMA(3) );
+		return 0;
+	case CG_R_LERPTAG:
+		return re.LerpTag( VMA(1), args[2], args[3], args[4], VMF(5), VMA(6) );
+	case CG_GETGLCONFIG:
+		CL_GetGlconfig( VMA(1) );
+		return 0;
+	case CG_GETGAMESTATE:
+		CL_GetGameState( VMA(1) );
+		return 0;
+	case CG_GETCURRENTSNAPSHOTNUMBER:
+		CL_GetCurrentSnapshotNumber( VMA(1), VMA(2) );
+		return 0;
+	case CG_GETSNAPSHOT:
+		return CL_GetSnapshot( args[1], VMA(2) );
+	case CG_GETSERVERCOMMAND:
+		return CL_GetServerCommand( args[1] );
+	case CG_GETCURRENTCMDNUMBER:
+		return CL_GetCurrentCmdNumber();
+	case CG_GETUSERCMD:
+		return CL_GetUserCmd( args[1], VMA(2) );
+	case CG_SETUSERCMDVALUE:
+		CL_SetUserCmdValue( args[1], VMF(2) );
+		return 0;
+	case CG_MEMORY_REMAINING:
+		return Hunk_MemoryRemaining();
+  case CG_KEY_ISDOWN:
+		return Key_IsDown( args[1] );
+  case CG_KEY_GETCATCHER:
+		return Key_GetCatcher();
+  case CG_KEY_SETCATCHER:
+		Key_SetCatcher( args[1] );
+    return 0;
+  case CG_KEY_GETKEY:
+		return Key_GetKey( VMA(1) );
+
+
+
+	case CG_MEMSET:
+		Com_Memset( VMA(1), args[2], args[3] );
+		return 0;
+	case CG_MEMCPY:
+		Com_Memcpy( VMA(1), VMA(2), args[3] );
+		return 0;
+	case CG_STRNCPY:
+		strncpy( VMA(1), VMA(2), args[3] );
+		return args[1];
+	case CG_SIN:
+		return FloatAsInt( sin( VMF(1) ) );
+	case CG_COS:
+		return FloatAsInt( cos( VMF(1) ) );
+	case CG_ATAN2:
+		return FloatAsInt( atan2( VMF(1), VMF(2) ) );
+	case CG_SQRT:
+		return FloatAsInt( sqrt( VMF(1) ) );
+	case CG_FLOOR:
+		return FloatAsInt( floor( VMF(1) ) );
+	case CG_CEIL:
+		return FloatAsInt( ceil( VMF(1) ) );
+	case CG_ACOS:
+		return FloatAsInt( Q_acos( VMF(1) ) );
+
+	case CG_PC_ADD_GLOBAL_DEFINE:
+		return botlib_export->PC_AddGlobalDefine( VMA(1) );
+	case CG_PC_LOAD_SOURCE:
+		return botlib_export->PC_LoadSourceHandle( VMA(1) );
+	case CG_PC_FREE_SOURCE:
+		return botlib_export->PC_FreeSourceHandle( args[1] );
+	case CG_PC_READ_TOKEN:
+		return botlib_export->PC_ReadTokenHandle( args[1], VMA(2) );
+	case CG_PC_SOURCE_FILE_AND_LINE:
+		return botlib_export->PC_SourceFileAndLine( args[1], VMA(2), VMA(3) );
+
+	case CG_S_STOPBACKGROUNDTRACK:
+		S_StopBackgroundTrack();
+		return 0;
+
+	case CG_REAL_TIME:
+		return Com_RealTime( VMA(1) );
+	case CG_SNAPVECTOR:
+		Sys_SnapVector( VMA(1) );
+		return 0;
+
+	case CG_CIN_PLAYCINEMATIC:
+	  return CIN_PlayCinematic(VMA(1), args[2], args[3], args[4], args[5], args[6]);
+
+	case CG_CIN_STOPCINEMATIC:
+	  return CIN_StopCinematic(args[1]);
+
+	case CG_CIN_RUNCINEMATIC:
+	  return CIN_RunCinematic(args[1]);
+
+	case CG_CIN_DRAWCINEMATIC:
+	  CIN_DrawCinematic(args[1]);
+	  return 0;
+
+	case CG_CIN_SETEXTENTS:
+	  CIN_SetExtents(args[1], args[2], args[3], args[4], args[5]);
+	  return 0;
+
+	case CG_R_REMAP_SHADER:
+		re.RemapShader( VMA(1), VMA(2), VMA(3) );
+		return 0;
+
+/*
+	case CG_LOADCAMERA:
+		return loadCamera(VMA(1));
+
+	case CG_STARTCAMERA:
+		startCamera(args[1]);
+		return 0;
+
+	case CG_GETCAMERAINFO:
+		return getCameraInfo(args[1], VMA(2), VMA(3));
+*/
+	case CG_GET_ENTITY_TOKEN:
+		return re.GetEntityToken( VMA(1), args[2] );
+	case CG_R_INPVS:
+		return re.inPVS( VMA(1), VMA(2) );
+
+	default:
+	        assert(0); // bk010102
+		Com_Error( ERR_DROP, "Bad cgame system trap: %i", args[0] );
+	}
+	return 0;
+}
+
+
+/*
+====================
+CL_InitCGame
+
+Should only be called by CL_StartHunkUsers
+====================
+*/
+void CL_InitCGame( void ) {
+	const char			*info;
+	const char			*mapname;
+	int					t1, t2;
+	vmInterpret_t		interpret;
+
+	t1 = Sys_Milliseconds();
+
+	// put away the console
+	Con_Close();
+
+	// find the current mapname
+	info = cl.gameState.stringData + cl.gameState.stringOffsets[ CS_SERVERINFO ];
+	mapname = Info_ValueForKey( info, "mapname" );
+	Com_sprintf( cl.mapname, sizeof( cl.mapname ), "maps/%s.bsp", mapname );
+
+	// load the dll or bytecode
+	if ( cl_connectedToPureServer != 0 ) {
+		// if sv_pure is set we only allow qvms to be loaded
+		interpret = VMI_COMPILED;
+	}
+	else {
+		interpret = Cvar_VariableValue( "vm_cgame" );
+	}
+	cgvm = VM_Create( "cgame", CL_CgameSystemCalls, interpret );
+	if ( !cgvm ) {
+		Com_Error( ERR_DROP, "VM_Create on cgame failed" );
+	}
+	cls.state = CA_LOADING;
+
+	// init for this gamestate
+	// use the lastExecutedServerCommand instead of the serverCommandSequence
+	// otherwise server commands sent just before a gamestate are dropped
+	VM_Call( cgvm, CG_INIT, clc.serverMessageSequence, clc.lastExecutedServerCommand, clc.clientNum );
+
+	// we will send a usercmd this frame, which
+	// will cause the server to send us the first snapshot
+	cls.state = CA_PRIMED;
+
+	t2 = Sys_Milliseconds();
+
+	Com_Printf( "CL_InitCGame: %5.2f seconds\n", (t2-t1)/1000.0 );
+
+	// have the renderer touch all its images, so they are present
+	// on the card even if the driver does deferred loading
+	re.EndRegistration();
+
+	// make sure everything is paged in
+	if (!Sys_LowPhysicalMemory()) {
+		Com_TouchMemory();
+	}
+
+	// clear anything that got printed
+	Con_ClearNotify ();
+}
+
+
+/*
+====================
+CL_GameCommand
+
+See if the current console command is claimed by the cgame
+====================
+*/
+qboolean CL_GameCommand( void ) {
+	if ( !cgvm ) {
+		return qfalse;
+	}
+
+	return VM_Call( cgvm, CG_CONSOLE_COMMAND );
+}
+
+
+
+/*
+=====================
+CL_CGameRendering
+=====================
+*/
+void CL_CGameRendering( stereoFrame_t stereo ) {
+	VM_Call( cgvm, CG_DRAW_ACTIVE_FRAME, cl.serverTime, stereo, clc.demoplaying );
+	VM_Debug( 0 );
+}
+
+
+/*
+=================
+CL_AdjustTimeDelta
+
+Adjust the clients view of server time.
+
+We attempt to have cl.serverTime exactly equal the server's view
+of time plus the timeNudge, but with variable latencies over
+the internet it will often need to drift a bit to match conditions.
+
+Our ideal time would be to have the adjusted time approach, but not pass,
+the very latest snapshot.
+
+Adjustments are only made when a new snapshot arrives with a rational
+latency, which keeps the adjustment process framerate independent and
+prevents massive overadjustment during times of significant packet loss
+or bursted delayed packets.
+=================
+*/
+
+#define	RESET_TIME	500
+
+void CL_AdjustTimeDelta( void ) {
+	int		resetTime;
+	int		newDelta;
+	int		deltaDelta;
+
+	cl.newSnapshots = qfalse;
+
+	// the delta never drifts when replaying a demo
+	if ( clc.demoplaying ) {
+		return;
+	}
+
+	// if the current time is WAY off, just correct to the current value
+	if ( com_sv_running->integer ) {
+		resetTime = 100;
+	} else {
+		resetTime = RESET_TIME;
+	}
+
+	newDelta = cl.snap.serverTime - cls.realtime;
+	deltaDelta = abs( newDelta - cl.serverTimeDelta );
+
+	if ( deltaDelta > RESET_TIME ) {
+		cl.serverTimeDelta = newDelta;
+		cl.oldServerTime = cl.snap.serverTime;	// FIXME: is this a problem for cgame?
+		cl.serverTime = cl.snap.serverTime;
+		if ( cl_showTimeDelta->integer ) {
+			Com_Printf( "<RESET> " );
+		}
+	} else if ( deltaDelta > 100 ) {
+		// fast adjust, cut the difference in half
+		if ( cl_showTimeDelta->integer ) {
+			Com_Printf( "<FAST> " );
+		}
+		cl.serverTimeDelta = ( cl.serverTimeDelta + newDelta ) >> 1;
+	} else {
+		// slow drift adjust, only move 1 or 2 msec
+
+		// if any of the frames between this and the previous snapshot
+		// had to be extrapolated, nudge our sense of time back a little
+		// the granularity of +1 / -2 is too high for timescale modified frametimes
+		if ( com_timescale->value == 0 || com_timescale->value == 1 ) {
+			if ( cl.extrapolatedSnapshot ) {
+				cl.extrapolatedSnapshot = qfalse;
+				cl.serverTimeDelta -= 2;
+			} else {
+				// otherwise, move our sense of time forward to minimize total latency
+				cl.serverTimeDelta++;
+			}
+		}
+	}
+
+	if ( cl_showTimeDelta->integer ) {
+		Com_Printf( "%i ", cl.serverTimeDelta );
+	}
+}
+
+
+/*
+==================
+CL_FirstSnapshot
+==================
+*/
+void CL_FirstSnapshot( void ) {
+	// ignore snapshots that don't have entities
+	if ( cl.snap.snapFlags & SNAPFLAG_NOT_ACTIVE ) {
+		return;
+	}
+	cls.state = CA_ACTIVE;
+
+	// set the timedelta so we are exactly on this first frame
+	cl.serverTimeDelta = cl.snap.serverTime - cls.realtime;
+	cl.oldServerTime = cl.snap.serverTime;
+
+	clc.timeDemoBaseTime = cl.snap.serverTime;
+
+	// if this is the first frame of active play,
+	// execute the contents of activeAction now
+	// this is to allow scripting a timedemo to start right
+	// after loading
+	if ( cl_activeAction->string[0] ) {
+		Cbuf_AddText( cl_activeAction->string );
+		Cvar_Set( "activeAction", "" );
+	}
+	
+	Sys_BeginProfiling();
+}
+
+/*
+==================
+CL_SetCGameTime
+==================
+*/
+void CL_SetCGameTime( void ) {
+	// getting a valid frame message ends the connection process
+	if ( cls.state != CA_ACTIVE ) {
+		if ( cls.state != CA_PRIMED ) {
+			return;
+		}
+		if ( clc.demoplaying ) {
+			// we shouldn't get the first snapshot on the same frame
+			// as the gamestate, because it causes a bad time skip
+			if ( !clc.firstDemoFrameSkipped ) {
+				clc.firstDemoFrameSkipped = qtrue;
+				return;
+			}
+			CL_ReadDemoMessage();
+		}
+		if ( cl.newSnapshots ) {
+			cl.newSnapshots = qfalse;
+			CL_FirstSnapshot();
+		}
+		if ( cls.state != CA_ACTIVE ) {
+			return;
+		}
+	}	
+
+	// if we have gotten to this point, cl.snap is guaranteed to be valid
+	if ( !cl.snap.valid ) {
+		Com_Error( ERR_DROP, "CL_SetCGameTime: !cl.snap.valid" );
+	}
+
+	// allow pause in single player
+	if ( sv_paused->integer && cl_paused->integer && com_sv_running->integer ) {
+		// paused
+		return;
+	}
+
+	if ( cl.snap.serverTime < cl.oldFrameServerTime ) {
+		Com_Error( ERR_DROP, "cl.snap.serverTime < cl.oldFrameServerTime" );
+	}
+	cl.oldFrameServerTime = cl.snap.serverTime;
+
+
+	// get our current view of time
+
+	if ( clc.demoplaying && cl_freezeDemo->integer ) {
+		// cl_freezeDemo is used to lock a demo in place for single frame advances
+
+	} else {
+		// cl_timeNudge is a user adjustable cvar that allows more
+		// or less latency to be added in the interest of better 
+		// smoothness or better responsiveness.
+		int tn;
+		
+		tn = cl_timeNudge->integer;
+		if (tn<-30) {
+			tn = -30;
+		} else if (tn>30) {
+			tn = 30;
+		}
+
+		cl.serverTime = cls.realtime + cl.serverTimeDelta - tn;
+
+		// guarantee that time will never flow backwards, even if
+		// serverTimeDelta made an adjustment or cl_timeNudge was changed
+		if ( cl.serverTime < cl.oldServerTime ) {
+			cl.serverTime = cl.oldServerTime;
+		}
+		cl.oldServerTime = cl.serverTime;
+
+		// note if we are almost past the latest frame (without timeNudge),
+		// so we will try and adjust back a bit when the next snapshot arrives
+		if ( cls.realtime + cl.serverTimeDelta >= cl.snap.serverTime - 5 ) {
+			cl.extrapolatedSnapshot = qtrue;
+		}
+	}
+
+	// if we have gotten new snapshots, drift serverTimeDelta
+	// don't do this every frame, or a period of packet loss would
+	// make a huge adjustment
+	if ( cl.newSnapshots ) {
+		CL_AdjustTimeDelta();
+	}
+
+	if ( !clc.demoplaying ) {
+		return;
+	}
+
+	// if we are playing a demo back, we can just keep reading
+	// messages from the demo file until the cgame definately
+	// has valid snapshots to interpolate between
+
+	// a timedemo will always use a deterministic set of time samples
+	// no matter what speed machine it is run on,
+	// while a normal demo may have different time samples
+	// each time it is played back
+	if ( cl_timedemo->integer ) {
+		if (!clc.timeDemoStart) {
+			clc.timeDemoStart = Sys_Milliseconds();
+		}
+		clc.timeDemoFrames++;
+		cl.serverTime = clc.timeDemoBaseTime + clc.timeDemoFrames * 50;
+	}
+
+	while ( cl.serverTime >= cl.snap.serverTime ) {
+		// feed another messag, which should change
+		// the contents of cl.snap
+		CL_ReadDemoMessage();
+		if ( cls.state != CA_ACTIVE ) {
+			return;		// end of demo
+		}
+	}
+
+}
+
+
+