/*
===========================================================================
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
===========================================================================
*/
// sv_game.c -- interface to the game dll

#include "server.h"
#include "../qcommon/vm_local.h"
#include "../botlib/botlib.h"

#include "../qcommon/vm_shim.h"


botlib_export_t	*botlib_export;

static const byte*	interopBufferIn;
static int			interopBufferInSize;
static byte*		interopBufferOut;
static int			interopBufferOutSize;


// these functions must be used instead of pointer arithmetic, because
// the game allocates gentities with private information after the server shared part

// if at ANY point in time SV_GentityNum(i) is linked but (SV_GentityNum(i)->s.number != i)
// the game vm is flat out broken, and has either failed to correctly G_InitGentity
// or passed incorrect values to trap_LocateGameData

int SV_NumForGentity( const sharedEntity_t* ent )
{
	return (((byte*)ent - (byte*)sv.gentities) / sv.gentitySize);
}

sharedEntity_t* SV_GentityNum( int num )
{
	return (sharedEntity_t*)((byte*)sv.gentities + (sv.gentitySize * num));
}

playerState_t* SV_GameClientNum( int num )
{
	return (playerState_t*)((byte*)sv.gameClients + (sv.gameClientSize * num));
}

svEntity_t* SV_SvEntityForGentity( const sharedEntity_t* gEnt )
{
	if ( !gEnt || gEnt->s.number < 0 || gEnt->s.number >= MAX_GENTITIES ) {
		Com_Error( ERR_DROP, "SV_SvEntityForGentity: bad gEnt" );
	}
	return &sv.svEntities[ gEnt->s.number ];
}

sharedEntity_t* SV_GEntityForSvEntity( const svEntity_t* svEnt )
{
	return SV_GentityNum( svEnt - sv.svEntities );
}


/*
===============
SV_GameSendServerCommand

Sends a command string to a client
===============
*/
void SV_GameSendServerCommand( int clientNum, const char *text ) {
	if ( clientNum == -1 ) {
		SV_SendServerCommand( NULL, "%s", text );
	} else {
		if ( clientNum < 0 || clientNum >= sv_maxclients->integer ) {
			return;
		}
		SV_SendServerCommand( svs.clients + clientNum, "%s", text );
	}
}


/*
===============
SV_GameDropClient

Disconnects the client with a message
===============
*/
void SV_GameDropClient( int clientNum, const char *reason ) {
	if ( clientNum < 0 || clientNum >= sv_maxclients->integer ) {
		return;
	}
	SV_DropClient( svs.clients + clientNum, reason );
}


// sets mins and maxs for inline bmodels

static void SV_SetBrushModel( sharedEntity_t* ent, const char* name )
{
	if (!name)
		Com_Error( ERR_DROP, "SV_SetBrushModel: NULL" );

	if (name[0] != '*')
		Com_Error( ERR_DROP, "SV_SetBrushModel: %s isn't a brush model", name );

	ent->s.modelindex = atoi( name + 1 );

	vec3_t mins, maxs;
	clipHandle_t h = CM_InlineModel( ent->s.modelindex );
	CM_ModelBounds( h, mins, maxs );
	VectorCopy( mins, ent->r.mins );
	VectorCopy( maxs, ent->r.maxs );
	ent->r.bmodel = qtrue;

	ent->r.contents = -1;		// we don't know exactly what is in the brushes

	SV_LinkEntity( ent );		// FIXME: remove
}


// also checks portalareas so that doors block sight

qbool SV_inPVS( const vec3_t p1, const vec3_t p2 )
{
	int		leafnum;
	int		cluster;
	int		area1, area2;
	const byte* mask;

	leafnum = CM_PointLeafnum (p1);
	cluster = CM_LeafCluster (leafnum);
	area1 = CM_LeafArea (leafnum);
	mask = CM_ClusterPVS (cluster);

	leafnum = CM_PointLeafnum (p2);
	cluster = CM_LeafCluster (leafnum);
	area2 = CM_LeafArea (leafnum);
	if ( mask && (!(mask[cluster>>3] & (1<<(cluster&7)) ) ) )
		return qfalse;
	if (!CM_AreasConnected (area1, area2))
		return qfalse;		// a door blocks sight
	return qtrue;
}


// does NOT check portalareas

qbool SV_inPVSIgnorePortals( const vec3_t p1, const vec3_t p2 )
{
	int		leafnum;
	int		cluster;
	const byte* mask;

	leafnum = CM_PointLeafnum (p1);
	cluster = CM_LeafCluster (leafnum);
	mask = CM_ClusterPVS (cluster);

	leafnum = CM_PointLeafnum (p2);
	cluster = CM_LeafCluster (leafnum);

	if ( mask && (!(mask[cluster>>3] & (1<<(cluster&7)) ) ) )
		return qfalse;

	return qtrue;
}


static void SV_AdjustAreaPortalState( sharedEntity_t* ent, qbool open )
{
	svEntity_t* svEnt = SV_SvEntityForGentity( ent );

	if ( svEnt->areanum2 == -1 )
		return;

	CM_AdjustAreaPortalState( svEnt->areanum, svEnt->areanum2, open );
}


static qbool SV_EntityContact( const vec3_t mins, const vec3_t maxs, const sharedEntity_t* gEnt, int capsule )
{
	trace_t trace;

	// check for exact collision
	const float* origin = gEnt->r.currentOrigin;
	const float* angles = gEnt->r.currentAngles;

	clipHandle_t ch = SV_ClipHandleForEntity( gEnt );
	CM_TransformedBoxTrace( &trace, vec3_origin, vec3_origin, mins, maxs, ch, -1, origin, angles, capsule );

	return trace.startsolid;
}


static void SV_GetServerinfo( char* buffer, int bufferSize )
{
	if ( bufferSize < 1 )
		Com_Error( ERR_DROP, "SV_GetServerinfo: bufferSize == %i", bufferSize );

	Q_strncpyz( buffer, Cvar_InfoString( CVAR_SERVERINFO ), bufferSize );
}


static void SV_LocateGameData( sharedEntity_t* gEnts, int numGEntities, int sizeofGEntity_t,
						playerState_t* clients, int sizeofGameClient )
{
	sv.gentities = gEnts;
	sv.gentitySize = sizeofGEntity_t;
	sv.num_entities = numGEntities;

	sv.gameClients = clients;
	sv.gameClientSize = sizeofGameClient;
}


static void SV_GetUsercmd( int clientNum, usercmd_t* cmd )
{
	if ( clientNum < 0 || clientNum >= sv_maxclients->integer )
		Com_Error( ERR_DROP, "SV_GetUsercmd: bad clientNum:%i", clientNum );

	*cmd = svs.clients[clientNum].lastUsercmd;
}


static qbool SV_G_GetValue( char* value, int valueSize, const char* key )
{
	struct syscall_t { const char* name; int number; };
	static const syscall_t syscalls[] = {
		// syscalls
		{ "trap_LocateInteropData", G_EXT_LOCATEINTEROPDATA },
		{ "trap_Cvar_SetRange", G_EXT_CVAR_SETRANGE },
		{ "trap_Cvar_SetHelp", G_EXT_CVAR_SETHELP },
		{ "trap_Cmd_SetHelp", G_EXT_CMD_SETHELP },
		{ "trap_Error2", G_EXT_ERROR2 },
		// capabilities
		{ "cap_ExtraColorCodes", 1 }
	};

	for ( int i = 0; i < ARRAY_LEN( syscalls ); ++i ) {
		if( Q_stricmp(key, syscalls[i].name) == 0 ) {
			Com_sprintf( value, valueSize, "%d", syscalls[i].number );
			return qtrue;
		}
	}

	return qfalse;
}


///////////////////////////////////////////////////////////////


// the game module is making a system call

static intptr_t SV_GameSystemCalls( intptr_t* args )
{
	switch( args[0] ) {
	case G_PRINT:
		Com_Printf( "%s", (const char*)VMA(1) );
		return 0;
	case G_ERROR:
		Com_ErrorExt( ERR_DROP, EXT_ERRMOD_GAME, qtrue, "%s", (const char*)VMA(1) );
		return 0;
	case G_MILLISECONDS:
		return Sys_Milliseconds();
	case G_REAL_TIME:
		return Com_RealTime( VMA(1) );

	case G_CVAR_REGISTER:
		Cvar_Register( VMA(1), VMA(2), VMA(3), args[4] );
		Cvar_SetModule( VMA(2), MODULE_GAME );
		return 0;
	case G_CVAR_UPDATE:
		Cvar_Update( VMA(1) );
		return 0;
	case G_CVAR_SET:
		Cvar_Set( VMA(1), VMA(2) );
		return 0;
	case G_CVAR_VARIABLE_INTEGER_VALUE:
		return Cvar_VariableIntegerValue( VMA(1) );
	case G_CVAR_VARIABLE_STRING_BUFFER:
		Cvar_VariableStringBuffer( VMA(1), VMA(2), args[3] );
		return 0;
	case G_ARGC:
		return Cmd_Argc();
	case G_ARGV:
		Cmd_ArgvBuffer( args[1], VMA(2), args[3] );
		return 0;
	case G_SEND_CONSOLE_COMMAND:
		Cbuf_AddText( VMA(2) );
		return 0;

	case G_FS_FOPEN_FILE:
		return FS_FOpenFileByMode( VMA(1), VMA(2), (fsMode_t)args[3] );
	case G_FS_READ:
		FS_Read2( VMA(1), args[2], args[3] );
		return 0;
	case G_FS_WRITE:
		FS_Write( VMA(1), args[2], args[3] );
		return 0;
	case G_FS_FCLOSE_FILE:
		FS_FCloseFile( args[1] );
		return 0;
	case G_FS_GETFILELIST:
		return FS_GetFileList( VMA(1), VMA(2), VMA(3), args[4] );
	case G_FS_SEEK:
		return FS_Seek( args[1], args[2], args[3] );

	case G_LOCATE_GAME_DATA:
		SV_LocateGameData( VMA(1), args[2], args[3], VMA(4), args[5] );
		return 0;
	case G_DROP_CLIENT:
		SV_GameDropClient( args[1], VMA(2) );
		return 0;
	case G_SEND_SERVER_COMMAND:
		SV_GameSendServerCommand( args[1], VMA(2) );
		return 0;
	case G_LINKENTITY:
		SV_LinkEntity( VMA(1) );
		return 0;
	case G_UNLINKENTITY:
		SV_UnlinkEntity( VMA(1) );
		return 0;
	case G_ENTITIES_IN_BOX:
		return SV_AreaEntities( VMA(1), VMA(2), VMA(3), args[4] );
	case G_ENTITY_CONTACT:
		return SV_EntityContact( VMA(1), VMA(2), VMA(3), /*int capsule*/ qfalse );
	case G_ENTITY_CONTACTCAPSULE:
		return SV_EntityContact( VMA(1), VMA(2), VMA(3), /*int capsule*/ qtrue );
	case G_TRACE:
		SV_Trace( VMA(1), VMA(2), VMA(3), VMA(4), VMA(5), args[6], args[7], /*int capsule*/ qfalse );
		return 0;
	case G_TRACECAPSULE:
		SV_Trace( VMA(1), VMA(2), VMA(3), VMA(4), VMA(5), args[6], args[7], /*int capsule*/ qtrue );
		return 0;
	case G_POINT_CONTENTS:
		return SV_PointContents( VMA(1), args[2] );
	case G_SET_BRUSH_MODEL:
		SV_SetBrushModel( VMA(1), VMA(2) );
		return 0;
	case G_IN_PVS:
		return SV_inPVS( VMA(1), VMA(2) );
	case G_IN_PVS_IGNORE_PORTALS:
		return SV_inPVSIgnorePortals( VMA(1), VMA(2) );

	case G_SET_CONFIGSTRING:
		SV_SetConfigstring( args[1], VMA(2) );
		return 0;
	case G_GET_CONFIGSTRING:
		SV_GetConfigstring( args[1], VMA(2), args[3] );
		return 0;
	case G_SET_USERINFO:
		SV_SetUserinfo( args[1], VMA(2) );
		return 0;
	case G_GET_USERINFO:
		SV_GetUserinfo( args[1], VMA(2), args[3] );
		return 0;
	case G_GET_SERVERINFO:
		SV_GetServerinfo( VMA(1), args[2] );
		return 0;
	case G_ADJUST_AREA_PORTAL_STATE:
		SV_AdjustAreaPortalState( VMA(1), args[2] );
		return 0;
	case G_AREAS_CONNECTED:
		return CM_AreasConnected( args[1], args[2] );

	case G_BOT_ALLOCATE_CLIENT:
		return SV_BotAllocateClient();
	case G_BOT_FREE_CLIENT:
		SV_BotFreeClient( args[1] );
		return 0;

	case G_GET_USERCMD:
		SV_GetUsercmd( args[1], VMA(2) );
		return 0;

	case G_GET_ENTITY_TOKEN:
		{
			const char* s = COM_Parse( &sv.entityParsePoint );
			Q_strncpyz( VMA(1), s, args[2] );
			return (sv.entityParsePoint || s[0]);
		}
/*
	case G_DEBUG_POLYGON_CREATE:
		return BotImport_DebugPolygonCreate( args[1], args[2], VMA(3) );
	case G_DEBUG_POLYGON_DELETE:
		BotImport_DebugPolygonDelete( args[1] );
		return 0;
	case G_SNAPVECTOR:
		return 0;
*/
	case BOTLIB_SETUP:
		return SV_BotLibSetup();
	case BOTLIB_SHUTDOWN:
		return SV_BotLibShutdown();
	case BOTLIB_LIBVAR_SET:
		return botlib_export->BotLibVarSet( VMA(1), VMA(2) );
	case BOTLIB_LIBVAR_GET:
		return botlib_export->BotLibVarGet( VMA(1), VMA(2), args[3] );

	case BOTLIB_PC_ADD_GLOBAL_DEFINE:
		return botlib_export->PC_AddGlobalDefine( VMA(1) );
	case BOTLIB_PC_LOAD_SOURCE:
		return botlib_export->PC_LoadSourceHandle( VMA(1) );
	case BOTLIB_PC_FREE_SOURCE:
		return botlib_export->PC_FreeSourceHandle( args[1] );
	case BOTLIB_PC_READ_TOKEN:
		return botlib_export->PC_ReadTokenHandle( args[1], VMA(2) );
	case BOTLIB_PC_SOURCE_FILE_AND_LINE:
		return botlib_export->PC_SourceFileAndLine( args[1], VMA(2), VMA(3) );

	case BOTLIB_START_FRAME:
		return botlib_export->BotLibStartFrame( VMF(1) );
	case BOTLIB_LOAD_MAP:
		return botlib_export->BotLibLoadMap( VMA(1) );
	case BOTLIB_UPDATENTITY:
		return botlib_export->BotLibUpdateEntity( args[1], VMA(2) );
	case BOTLIB_TEST:
		return botlib_export->Test( args[1], VMA(2), VMA(3), VMA(4) );

	case BOTLIB_GET_SNAPSHOT_ENTITY:
		return SV_BotGetSnapshotEntity( args[1], args[2] );
	case BOTLIB_GET_CONSOLE_MESSAGE:
		return SV_BotGetConsoleMessage( args[1], VMA(2), args[3] );
	case BOTLIB_USER_COMMAND:
		SV_ClientThink( &svs.clients[args[1]], VMA(2) );
		return 0;

	case BOTLIB_AAS_BBOX_AREAS:
		return botlib_export->aas.AAS_BBoxAreas( VMA(1), VMA(2), VMA(3), args[4] );
	case BOTLIB_AAS_AREA_INFO:
		return botlib_export->aas.AAS_AreaInfo( args[1], VMA(2) );
	case BOTLIB_AAS_ALTERNATIVE_ROUTE_GOAL:
		return botlib_export->aas.AAS_AlternativeRouteGoals( VMA(1), args[2], VMA(3), args[4], args[5], VMA(6), args[7], args[8] );
	case BOTLIB_AAS_ENTITY_INFO:
		botlib_export->aas.AAS_EntityInfo( args[1], VMA(2) );
		return 0;

	case BOTLIB_AAS_INITIALIZED:
		return botlib_export->aas.AAS_Initialized();
	case BOTLIB_AAS_PRESENCE_TYPE_BOUNDING_BOX:
		botlib_export->aas.AAS_PresenceTypeBoundingBox( args[1], VMA(2), VMA(3) );
		return 0;
	case BOTLIB_AAS_TIME:
		return PASSFLOAT( botlib_export->aas.AAS_Time() );

	case BOTLIB_AAS_POINT_AREA_NUM:
		return botlib_export->aas.AAS_PointAreaNum( VMA(1) );
	case BOTLIB_AAS_POINT_REACHABILITY_AREA_INDEX:
		return botlib_export->aas.AAS_PointReachabilityAreaIndex( VMA(1) );
	case BOTLIB_AAS_TRACE_AREAS:
		return botlib_export->aas.AAS_TraceAreas( VMA(1), VMA(2), VMA(3), VMA(4), args[5] );

	case BOTLIB_AAS_POINT_CONTENTS:
		return botlib_export->aas.AAS_PointContents( VMA(1) );
	case BOTLIB_AAS_NEXT_BSP_ENTITY:
		return botlib_export->aas.AAS_NextBSPEntity( args[1] );
	case BOTLIB_AAS_VALUE_FOR_BSP_EPAIR_KEY:
		return botlib_export->aas.AAS_ValueForBSPEpairKey( args[1], VMA(2), VMA(3), args[4] );
	case BOTLIB_AAS_VECTOR_FOR_BSP_EPAIR_KEY:
		return botlib_export->aas.AAS_VectorForBSPEpairKey( args[1], VMA(2), VMA(3) );
	case BOTLIB_AAS_FLOAT_FOR_BSP_EPAIR_KEY:
		return botlib_export->aas.AAS_FloatForBSPEpairKey( args[1], VMA(2), VMA(3) );
	case BOTLIB_AAS_INT_FOR_BSP_EPAIR_KEY:
		return botlib_export->aas.AAS_IntForBSPEpairKey( args[1], VMA(2), VMA(3) );

	case BOTLIB_AAS_AREA_REACHABILITY:
		return botlib_export->aas.AAS_AreaReachability( args[1] );

	case BOTLIB_AAS_AREA_TRAVEL_TIME_TO_GOAL_AREA:
		return botlib_export->aas.AAS_AreaTravelTimeToGoalArea( args[1], VMA(2), args[3], args[4] );
	case BOTLIB_AAS_ENABLE_ROUTING_AREA:
		return botlib_export->aas.AAS_EnableRoutingArea( args[1], args[2] );
	case BOTLIB_AAS_PREDICT_ROUTE:
		return botlib_export->aas.AAS_PredictRoute( VMA(1), args[2], VMA(3), args[4], args[5], args[6], args[7], args[8], args[9], args[10], args[11] );

	case BOTLIB_AAS_SWIMMING:
		return botlib_export->aas.AAS_Swimming( VMA(1) );
	case BOTLIB_AAS_PREDICT_CLIENT_MOVEMENT:
		return botlib_export->aas.AAS_PredictClientMovement( VMA(1), args[2], VMA(3), args[4], args[5],
			VMA(6), VMA(7), args[8], args[9], VMF(10), args[11], args[12], args[13] );

	case BOTLIB_EA_SAY:
		botlib_export->ea.EA_Say( args[1], VMA(2) );
		return 0;
	case BOTLIB_EA_SAY_TEAM:
		botlib_export->ea.EA_SayTeam( args[1], VMA(2) );
		return 0;
	case BOTLIB_EA_COMMAND:
		botlib_export->ea.EA_Command( args[1], VMA(2) );
		return 0;

	case BOTLIB_EA_ACTION:
		botlib_export->ea.EA_Action( args[1], args[2] );
		break;
	case BOTLIB_EA_GESTURE:
		botlib_export->ea.EA_Gesture( args[1] );
		return 0;
	case BOTLIB_EA_TALK:
		botlib_export->ea.EA_Talk( args[1] );
		return 0;
	case BOTLIB_EA_ATTACK:
		botlib_export->ea.EA_Attack( args[1] );
		return 0;
	case BOTLIB_EA_USE:
		botlib_export->ea.EA_Use( args[1] );
		return 0;
	case BOTLIB_EA_RESPAWN:
		botlib_export->ea.EA_Respawn( args[1] );
		return 0;
	case BOTLIB_EA_CROUCH:
		botlib_export->ea.EA_Crouch( args[1] );
		return 0;
	case BOTLIB_EA_MOVE_UP:
		botlib_export->ea.EA_MoveUp( args[1] );
		return 0;
	case BOTLIB_EA_MOVE_DOWN:
		botlib_export->ea.EA_MoveDown( args[1] );
		return 0;
	case BOTLIB_EA_MOVE_FORWARD:
		botlib_export->ea.EA_MoveForward( args[1] );
		return 0;
	case BOTLIB_EA_MOVE_BACK:
		botlib_export->ea.EA_MoveBack( args[1] );
		return 0;
	case BOTLIB_EA_MOVE_LEFT:
		botlib_export->ea.EA_MoveLeft( args[1] );
		return 0;
	case BOTLIB_EA_MOVE_RIGHT:
		botlib_export->ea.EA_MoveRight( args[1] );
		return 0;

	case BOTLIB_EA_SELECT_WEAPON:
		botlib_export->ea.EA_SelectWeapon( args[1], args[2] );
		return 0;
	case BOTLIB_EA_JUMP:
		botlib_export->ea.EA_Jump( args[1] );
		return 0;
	case BOTLIB_EA_DELAYED_JUMP:
		botlib_export->ea.EA_DelayedJump( args[1] );
		return 0;
	case BOTLIB_EA_MOVE:
		botlib_export->ea.EA_Move( args[1], VMA(2), VMF(3) );
		return 0;
	case BOTLIB_EA_VIEW:
		botlib_export->ea.EA_View( args[1], VMA(2) );
		return 0;

	case BOTLIB_EA_END_REGULAR:
		botlib_export->ea.EA_EndRegular( args[1], VMF(2) );
		return 0;
	case BOTLIB_EA_GET_INPUT:
		botlib_export->ea.EA_GetInput( args[1], VMF(2), VMA(3) );
		return 0;
	case BOTLIB_EA_RESET_INPUT:
		botlib_export->ea.EA_ResetInput( args[1] );
		return 0;

	case BOTLIB_AI_LOAD_CHARACTER:
		return botlib_export->ai.BotLoadCharacter( VMA(1), VMF(2) );
	case BOTLIB_AI_FREE_CHARACTER:
		botlib_export->ai.BotFreeCharacter( args[1] );
		return 0;
	case BOTLIB_AI_CHARACTERISTIC_FLOAT:
		return PASSFLOAT( botlib_export->ai.Characteristic_Float( args[1], args[2] ) );
	case BOTLIB_AI_CHARACTERISTIC_BFLOAT:
		return PASSFLOAT( botlib_export->ai.Characteristic_BFloat( args[1], args[2], VMF(3), VMF(4) ) );
	case BOTLIB_AI_CHARACTERISTIC_INTEGER:
		return botlib_export->ai.Characteristic_Integer( args[1], args[2] );
	case BOTLIB_AI_CHARACTERISTIC_BINTEGER:
		return botlib_export->ai.Characteristic_BInteger( args[1], args[2], args[3], args[4] );
	case BOTLIB_AI_CHARACTERISTIC_STRING:
		botlib_export->ai.Characteristic_String( args[1], args[2], VMA(3), args[4] );
		return 0;

	case BOTLIB_AI_ALLOC_CHAT_STATE:
		return botlib_export->ai.BotAllocChatState();
	case BOTLIB_AI_FREE_CHAT_STATE:
		botlib_export->ai.BotFreeChatState( args[1] );
		return 0;
	case BOTLIB_AI_QUEUE_CONSOLE_MESSAGE:
		botlib_export->ai.BotQueueConsoleMessage( args[1], args[2], VMA(3) );
		return 0;
	case BOTLIB_AI_REMOVE_CONSOLE_MESSAGE:
		botlib_export->ai.BotRemoveConsoleMessage( args[1], args[2] );
		return 0;
	case BOTLIB_AI_NEXT_CONSOLE_MESSAGE:
		return botlib_export->ai.BotNextConsoleMessage( args[1], VMA(2) );
	case BOTLIB_AI_NUM_CONSOLE_MESSAGE:
		return botlib_export->ai.BotNumConsoleMessages( args[1] );
	case BOTLIB_AI_INITIAL_CHAT:
		botlib_export->ai.BotInitialChat( args[1], VMA(2), args[3], VMA(4), VMA(5), VMA(6), VMA(7), VMA(8), VMA(9), VMA(10), VMA(11) );
		return 0;
	case BOTLIB_AI_NUM_INITIAL_CHATS:
		return botlib_export->ai.BotNumInitialChats( args[1], VMA(2) );
	case BOTLIB_AI_REPLY_CHAT:
		return botlib_export->ai.BotReplyChat( args[1], VMA(2), args[3], args[4], VMA(5), VMA(6), VMA(7), VMA(8), VMA(9), VMA(10), VMA(11), VMA(12) );
	case BOTLIB_AI_CHAT_LENGTH:
		return botlib_export->ai.BotChatLength( args[1] );
	case BOTLIB_AI_ENTER_CHAT:
		botlib_export->ai.BotEnterChat( args[1], args[2], args[3] );
		return 0;
	case BOTLIB_AI_GET_CHAT_MESSAGE:
		botlib_export->ai.BotGetChatMessage( args[1], VMA(2), args[3] );
		return 0;
	case BOTLIB_AI_STRING_CONTAINS:
		return botlib_export->ai.StringContains( VMA(1), VMA(2), args[3] );
	case BOTLIB_AI_FIND_MATCH:
		return botlib_export->ai.BotFindMatch( VMA(1), VMA(2), args[3] );
	case BOTLIB_AI_MATCH_VARIABLE:
		botlib_export->ai.BotMatchVariable( VMA(1), args[2], VMA(3), args[4] );
		return 0;
	case BOTLIB_AI_UNIFY_WHITE_SPACES:
		botlib_export->ai.UnifyWhiteSpaces( VMA(1) );
		return 0;
	case BOTLIB_AI_REPLACE_SYNONYMS:
		botlib_export->ai.BotReplaceSynonyms( VMA(1), args[2] );
		return 0;
	case BOTLIB_AI_LOAD_CHAT_FILE:
		return botlib_export->ai.BotLoadChatFile( args[1], VMA(2), VMA(3) );
	case BOTLIB_AI_SET_CHAT_GENDER:
		botlib_export->ai.BotSetChatGender( args[1], args[2] );
		return 0;
	case BOTLIB_AI_SET_CHAT_NAME:
		botlib_export->ai.BotSetChatName( args[1], VMA(2), args[3] );
		return 0;

	case BOTLIB_AI_RESET_GOAL_STATE:
		botlib_export->ai.BotResetGoalState( args[1] );
		return 0;
	case BOTLIB_AI_RESET_AVOID_GOALS:
		botlib_export->ai.BotResetAvoidGoals( args[1] );
		return 0;
	case BOTLIB_AI_REMOVE_FROM_AVOID_GOALS:
		botlib_export->ai.BotRemoveFromAvoidGoals( args[1], args[2] );
		return 0;
	case BOTLIB_AI_PUSH_GOAL:
		botlib_export->ai.BotPushGoal( args[1], VMA(2) );
		return 0;
	case BOTLIB_AI_POP_GOAL:
		botlib_export->ai.BotPopGoal( args[1] );
		return 0;
	case BOTLIB_AI_EMPTY_GOAL_STACK:
		botlib_export->ai.BotEmptyGoalStack( args[1] );
		return 0;
	case BOTLIB_AI_DUMP_AVOID_GOALS:
		botlib_export->ai.BotDumpAvoidGoals( args[1] );
		return 0;
	case BOTLIB_AI_DUMP_GOAL_STACK:
		botlib_export->ai.BotDumpGoalStack( args[1] );
		return 0;
	case BOTLIB_AI_GOAL_NAME:
		botlib_export->ai.BotGoalName( args[1], VMA(2), args[3] );
		return 0;
	case BOTLIB_AI_GET_TOP_GOAL:
		return botlib_export->ai.BotGetTopGoal( args[1], VMA(2) );
	case BOTLIB_AI_GET_SECOND_GOAL:
		return botlib_export->ai.BotGetSecondGoal( args[1], VMA(2) );
	case BOTLIB_AI_CHOOSE_LTG_ITEM:
		return botlib_export->ai.BotChooseLTGItem( args[1], VMA(2), VMA(3), args[4] );
	case BOTLIB_AI_CHOOSE_NBG_ITEM:
		return botlib_export->ai.BotChooseNBGItem( args[1], VMA(2), VMA(3), args[4], VMA(5), VMF(6) );
	case BOTLIB_AI_TOUCHING_GOAL:
		return botlib_export->ai.BotTouchingGoal( VMA(1), VMA(2) );
	case BOTLIB_AI_ITEM_GOAL_IN_VIS_BUT_NOT_VISIBLE:
		return botlib_export->ai.BotItemGoalInVisButNotVisible( args[1], VMA(2), VMA(3), VMA(4) );
	case BOTLIB_AI_GET_LEVEL_ITEM_GOAL:
		return botlib_export->ai.BotGetLevelItemGoal( args[1], VMA(2), VMA(3) );
	case BOTLIB_AI_GET_NEXT_CAMP_SPOT_GOAL:
		return botlib_export->ai.BotGetNextCampSpotGoal( args[1], VMA(2) );
	case BOTLIB_AI_GET_MAP_LOCATION_GOAL:
		return botlib_export->ai.BotGetMapLocationGoal( VMA(1), VMA(2) );
	case BOTLIB_AI_AVOID_GOAL_TIME:
		return PASSFLOAT( botlib_export->ai.BotAvoidGoalTime( args[1], args[2] ) );
	case BOTLIB_AI_SET_AVOID_GOAL_TIME:
		botlib_export->ai.BotSetAvoidGoalTime( args[1], args[2], VMF(3));
		return 0;
	case BOTLIB_AI_INIT_LEVEL_ITEMS:
		botlib_export->ai.BotInitLevelItems();
		return 0;
	case BOTLIB_AI_UPDATE_ENTITY_ITEMS:
		botlib_export->ai.BotUpdateEntityItems();
		return 0;
	case BOTLIB_AI_LOAD_ITEM_WEIGHTS:
		return botlib_export->ai.BotLoadItemWeights( args[1], VMA(2) );
	case BOTLIB_AI_FREE_ITEM_WEIGHTS:
		botlib_export->ai.BotFreeItemWeights( args[1] );
		return 0;
	case BOTLIB_AI_INTERBREED_GOAL_FUZZY_LOGIC:
		botlib_export->ai.BotInterbreedGoalFuzzyLogic( args[1], args[2], args[3] );
		return 0;
	case BOTLIB_AI_SAVE_GOAL_FUZZY_LOGIC:
		botlib_export->ai.BotSaveGoalFuzzyLogic( args[1], VMA(2) );
		return 0;
	case BOTLIB_AI_MUTATE_GOAL_FUZZY_LOGIC:
		botlib_export->ai.BotMutateGoalFuzzyLogic( args[1], VMF(2) );
		return 0;
	case BOTLIB_AI_ALLOC_GOAL_STATE:
		return botlib_export->ai.BotAllocGoalState( args[1] );
	case BOTLIB_AI_FREE_GOAL_STATE:
		botlib_export->ai.BotFreeGoalState( args[1] );
		return 0;

	case BOTLIB_AI_RESET_MOVE_STATE:
		botlib_export->ai.BotResetMoveState( args[1] );
		return 0;
	case BOTLIB_AI_ADD_AVOID_SPOT:
		botlib_export->ai.BotAddAvoidSpot( args[1], VMA(2), VMF(3), args[4] );
		return 0;
	case BOTLIB_AI_MOVE_TO_GOAL:
		botlib_export->ai.BotMoveToGoal( VMA(1), args[2], VMA(3), args[4] );
		return 0;
	case BOTLIB_AI_MOVE_IN_DIRECTION:
		return botlib_export->ai.BotMoveInDirection( args[1], VMA(2), VMF(3), args[4] );
	case BOTLIB_AI_RESET_AVOID_REACH:
		botlib_export->ai.BotResetAvoidReach( args[1] );
		return 0;
	case BOTLIB_AI_RESET_LAST_AVOID_REACH:
		botlib_export->ai.BotResetLastAvoidReach( args[1] );
		return 0;
	case BOTLIB_AI_REACHABILITY_AREA:
		return botlib_export->ai.BotReachabilityArea( VMA(1), args[2] );
	case BOTLIB_AI_MOVEMENT_VIEW_TARGET:
		return botlib_export->ai.BotMovementViewTarget( args[1], VMA(2), args[3], VMF(4), VMA(5) );
	case BOTLIB_AI_PREDICT_VISIBLE_POSITION:
		return botlib_export->ai.BotPredictVisiblePosition( VMA(1), args[2], VMA(3), args[4], VMA(5) );
	case BOTLIB_AI_ALLOC_MOVE_STATE:
		return botlib_export->ai.BotAllocMoveState();
	case BOTLIB_AI_FREE_MOVE_STATE:
		botlib_export->ai.BotFreeMoveState( args[1] );
		return 0;
	case BOTLIB_AI_INIT_MOVE_STATE:
		botlib_export->ai.BotInitMoveState( args[1], VMA(2) );
		return 0;

	case BOTLIB_AI_CHOOSE_BEST_FIGHT_WEAPON:
		return botlib_export->ai.BotChooseBestFightWeapon( args[1], VMA(2) );
	case BOTLIB_AI_GET_WEAPON_INFO:
		botlib_export->ai.BotGetWeaponInfo( args[1], args[2], VMA(3) );
		return 0;
	case BOTLIB_AI_LOAD_WEAPON_WEIGHTS:
		return botlib_export->ai.BotLoadWeaponWeights( args[1], VMA(2) );
	case BOTLIB_AI_ALLOC_WEAPON_STATE:
		return botlib_export->ai.BotAllocWeaponState();
	case BOTLIB_AI_FREE_WEAPON_STATE:
		botlib_export->ai.BotFreeWeaponState( args[1] );
		return 0;
	case BOTLIB_AI_RESET_WEAPON_STATE:
		botlib_export->ai.BotResetWeaponState( args[1] );
		return 0;

	case BOTLIB_AI_GENETIC_PARENTS_AND_CHILD_SELECTION:
		return botlib_export->ai.GeneticParentsAndChildSelection(args[1], VMA(2), VMA(3), VMA(4), VMA(5));

	case G_MEMSET:
		Com_Memset( VMA(1), args[2], args[3] );
		return 0;

	case G_MEMCPY:
		Com_Memcpy( VMA(1), VMA(2), args[3] );
		return 0;

	case G_STRNCPY:
		strncpy( VMA(1), VMA(2), args[3] );
		return args[1];

	case G_SIN:
		return PASSFLOAT( sin( VMF(1) ) );

	case G_COS:
		return PASSFLOAT( cos( VMF(1) ) );

	case G_ATAN2:
		return PASSFLOAT( atan2( VMF(1), VMF(2) ) );

	case G_SQRT:
		return PASSFLOAT( sqrt( VMF(1) ) );

	case G_MATRIXMULTIPLY:
		MatrixMultiply( VMA(1), VMA(2), VMA(3) );
		return 0;

	case G_ANGLEVECTORS:
		AngleVectors( VMA(1), VMA(2), VMA(3), VMA(4) );
		return 0;

	case G_PERPENDICULARVECTOR:
		PerpendicularVector( VMA(1), VMA(2) );
		return 0;

	case G_FLOOR:
		return PASSFLOAT( floor( VMF(1) ) );

	case G_CEIL:
		return PASSFLOAT( ceil( VMF(1) ) );

	// extensions

	case G_EXT_GETVALUE:
		return SV_G_GetValue( VMA(1), args[2], VMA(3) );

	case G_EXT_LOCATEINTEROPDATA:
		interopBufferIn = VMA(1);
		interopBufferInSize = args[2];
		interopBufferOut = VMA(3);
		interopBufferOutSize = args[4];
		return 0;

	case G_EXT_CVAR_SETRANGE:
		Cvar_SetRange( VMA(1), (cvarType_t)args[2], VMA(3), VMA(4) );
		return 0;

	case G_EXT_CVAR_SETHELP:
		Cvar_SetHelp( VMA(1), VMA(2) );
		return 0;

	case G_EXT_CMD_SETHELP:
		Cmd_SetHelp( VMA(1), VMA(2) );
		return 0;

	case G_EXT_ERROR2:
		Com_ErrorExt( ERR_DROP, EXT_ERRMOD_GAME, (qbool)args[2], "%s", (const char*)VMA(1) );
		return 0;

	default:
		Com_Error( ERR_DROP, "Bad game system trap: %i", args[0] );
	}
	return -1;
}


///////////////////////////////////////////////////////////////


// called every time a map changes

void SV_ShutdownGameProgs()
{
	if ( !gvm )
		return;

	VM_Call( gvm, GAME_SHUTDOWN, qfalse );
	VM_Free( gvm );
	gvm = NULL;
}


// called for both a full init and a restart

static void SV_InitGameVM( qbool restart )
{
	if ( !gvm )
		Com_Error( ERR_FATAL, "VM_%s on game failed", restart ? "Restart" : "Create" );

	// start the entity parsing at the beginning
	sv.entityParsePoint = CM_EntityString();

	// clear all gentity pointers that might still be set from a previous level
	for (int i = 0; i < sv_maxclients->integer; ++i)
		svs.clients[i].gentity = NULL;

	// use the current msec count for a random seed
	// init for this gamestate
	VM_Call( gvm, GAME_INIT, svs.time, Com_Milliseconds(), restart );
}



// called on a map_restart, but not on a normal map change

void SV_RestartGameProgs()
{
	if ( !gvm )
		return;

	VM_Call( gvm, GAME_SHUTDOWN, qtrue );

	gvm = VM_Restart( gvm );

	SV_InitGameVM( qtrue );
}


// called on a normal map change, not on a map_restart

void SV_InitGameProgs()
{
	//FIXME these are temp while I make bots run in vm
	extern int bot_enable;

	cvar_t* var = Cvar_Get( "bot_enable", "1", CVAR_LATCH );
	bot_enable = (var && var->integer);

	const vmInterpret_t interpret = (vmInterpret_t)Cvar_VariableIntegerValue( "vm_game" );

	// load the dll or bytecode
	gvm = VM_Create( VM_GAME, SV_GameSystemCalls, interpret );

	SV_InitGameVM( qfalse );
}


// see if the current console command is claimed by the game

qbool SV_GameCommand()
{
	if ( sv.state != SS_GAME )
		return qfalse;
	return VM_Call( gvm, GAME_CONSOLE_COMMAND );
}