sv_bot.c

quakeIII源码这个不用我多说吧

	int i;

	if (!debugpolygons)
		return 0;

	for (i = 1; i < bot_maxdebugpolys; i++) 	{
		if (!debugpolygons[i].inuse)
			break;
	}
	if (i >= bot_maxdebugpolys)
		return 0;
	poly = &debugpolygons[i];
	poly->inuse = qtrue;
	poly->color = color;
	poly->numPoints = numPoints;
	Com_Memcpy(poly->points, points, numPoints * sizeof(vec3_t));
	//
	return i;
}

/*
==================
BotImport_DebugPolygonShow
==================
*/
void BotImport_DebugPolygonShow(int id, int color, int numPoints, vec3_t *points) {
	bot_debugpoly_t *poly;

	if (!debugpolygons) return;
	poly = &debugpolygons[id];
	poly->inuse = qtrue;
	poly->color = color;
	poly->numPoints = numPoints;
	Com_Memcpy(poly->points, points, numPoints * sizeof(vec3_t));
}

/*
==================
BotImport_DebugPolygonDelete
==================
*/
void BotImport_DebugPolygonDelete(int id)
{
	if (!debugpolygons) return;
	debugpolygons[id].inuse = qfalse;
}

/*
==================
BotImport_DebugLineCreate
==================
*/
int BotImport_DebugLineCreate(void) {
	vec3_t points[1];
	return BotImport_DebugPolygonCreate(0, 0, points);
}

/*
==================
BotImport_DebugLineDelete
==================
*/
void BotImport_DebugLineDelete(int line) {
	BotImport_DebugPolygonDelete(line);
}

/*
==================
BotImport_DebugLineShow
==================
*/
void BotImport_DebugLineShow(int line, vec3_t start, vec3_t end, int color) {
	vec3_t points[4], dir, cross, up = {0, 0, 1};
	float dot;

	VectorCopy(start, points[0]);
	VectorCopy(start, points[1]);
	//points[1][2] -= 2;
	VectorCopy(end, points[2]);
	//points[2][2] -= 2;
	VectorCopy(end, points[3]);


	VectorSubtract(end, start, dir);
	VectorNormalize(dir);
	dot = DotProduct(dir, up);
	if (dot > 0.99 || dot < -0.99) VectorSet(cross, 1, 0, 0);
	else CrossProduct(dir, up, cross);

	VectorNormalize(cross);

	VectorMA(points[0], 2, cross, points[0]);
	VectorMA(points[1], -2, cross, points[1]);
	VectorMA(points[2], -2, cross, points[2]);
	VectorMA(points[3], 2, cross, points[3]);

	BotImport_DebugPolygonShow(line, color, 4, points);
}

/*
==================
SV_BotClientCommand
==================
*/
void BotClientCommand( int client, char *command ) {
	SV_ExecuteClientCommand( &svs.clients[client], command, qtrue );
}

/*
==================
SV_BotFrame
==================
*/
void SV_BotFrame( int time ) {
	if (!bot_enable) return;
	//NOTE: maybe the game is already shutdown
	if (!gvm) return;
	VM_Call( gvm, BOTAI_START_FRAME, time );
}

/*
===============
SV_BotLibSetup
===============
*/
int SV_BotLibSetup( void ) {
	if (!bot_enable) {
		return 0;
	}

	if ( !botlib_export ) {
		Com_Printf( S_COLOR_RED "Error: SV_BotLibSetup without SV_BotInitBotLib\n" );
		return -1;
	}

	return botlib_export->BotLibSetup();
}

/*
===============
SV_ShutdownBotLib

Called when either the entire server is being killed, or
it is changing to a different game directory.
===============
*/
int SV_BotLibShutdown( void ) {

	if ( !botlib_export ) {
		return -1;
	}

	return botlib_export->BotLibShutdown();
}

/*
==================
SV_BotInitCvars
==================
*/
void SV_BotInitCvars(void) {

	Cvar_Get("bot_enable", "1", 0);						//enable the bot
	Cvar_Get("bot_developer", "0", CVAR_CHEAT);			//bot developer mode
	Cvar_Get("bot_debug", "0", CVAR_CHEAT);				//enable bot debugging
	Cvar_Get("bot_maxdebugpolys", "2", 0);				//maximum number of debug polys
	Cvar_Get("bot_groundonly", "1", 0);					//only show ground faces of areas
	Cvar_Get("bot_reachability", "0", 0);				//show all reachabilities to other areas
	Cvar_Get("bot_visualizejumppads", "0", CVAR_CHEAT);	//show jumppads
	Cvar_Get("bot_forceclustering", "0", 0);			//force cluster calculations
	Cvar_Get("bot_forcereachability", "0", 0);			//force reachability calculations
	Cvar_Get("bot_forcewrite", "0", 0);					//force writing aas file
	Cvar_Get("bot_aasoptimize", "0", 0);				//no aas file optimisation
	Cvar_Get("bot_saveroutingcache", "0", 0);			//save routing cache
	Cvar_Get("bot_thinktime", "100", CVAR_CHEAT);		//msec the bots thinks
	Cvar_Get("bot_reloadcharacters", "0", 0);			//reload the bot characters each time
	Cvar_Get("bot_testichat", "0", 0);					//test ichats
	Cvar_Get("bot_testrchat", "0", 0);					//test rchats
	Cvar_Get("bot_testsolid", "0", CVAR_CHEAT);			//test for solid areas
	Cvar_Get("bot_testclusters", "0", CVAR_CHEAT);		//test the AAS clusters
	Cvar_Get("bot_fastchat", "0", 0);					//fast chatting bots
	Cvar_Get("bot_nochat", "0", 0);						//disable chats
	Cvar_Get("bot_pause", "0", CVAR_CHEAT);				//pause the bots thinking
	Cvar_Get("bot_report", "0", CVAR_CHEAT);			//get a full report in ctf
	Cvar_Get("bot_grapple", "0", 0);					//enable grapple
	Cvar_Get("bot_rocketjump", "1", 0);					//enable rocket jumping
	Cvar_Get("bot_challenge", "0", 0);					//challenging bot
	Cvar_Get("bot_minplayers", "0", 0);					//minimum players in a team or the game
	Cvar_Get("bot_interbreedchar", "", CVAR_CHEAT);		//bot character used for interbreeding
	Cvar_Get("bot_interbreedbots", "10", CVAR_CHEAT);	//number of bots used for interbreeding
	Cvar_Get("bot_interbreedcycle", "20", CVAR_CHEAT);	//bot interbreeding cycle
	Cvar_Get("bot_interbreedwrite", "", CVAR_CHEAT);	//write interbreeded bots to this file
}

/*
==================
SV_BotInitBotLib
==================
*/
void SV_BotInitBotLib(void) {
	botlib_import_t	botlib_import;

	if ( !Cvar_VariableValue("fs_restrict") && !Sys_CheckCD() ) {
		Com_Error( ERR_NEED_CD, "Game CD not in drive" );
	}

	if (debugpolygons) Z_Free(debugpolygons);
	bot_maxdebugpolys = Cvar_VariableIntegerValue("bot_maxdebugpolys");
	debugpolygons = Z_Malloc(sizeof(bot_debugpoly_t) * bot_maxdebugpolys);

	botlib_import.Print = BotImport_Print;
	botlib_import.Trace = BotImport_Trace;
	botlib_import.EntityTrace = BotImport_EntityTrace;
	botlib_import.PointContents = BotImport_PointContents;
	botlib_import.inPVS = BotImport_inPVS;
	botlib_import.BSPEntityData = BotImport_BSPEntityData;
	botlib_import.BSPModelMinsMaxsOrigin = BotImport_BSPModelMinsMaxsOrigin;
	botlib_import.BotClientCommand = BotClientCommand;

	//memory management
	botlib_import.GetMemory = BotImport_GetMemory;
	botlib_import.FreeMemory = BotImport_FreeMemory;
	botlib_import.AvailableMemory = Z_AvailableMemory;
	botlib_import.HunkAlloc = BotImport_HunkAlloc;

	// file system access
	botlib_import.FS_FOpenFile = FS_FOpenFileByMode;
	botlib_import.FS_Read = FS_Read2;
	botlib_import.FS_Write = FS_Write;
	botlib_import.FS_FCloseFile = FS_FCloseFile;
	botlib_import.FS_Seek = FS_Seek;

	//debug lines
	botlib_import.DebugLineCreate = BotImport_DebugLineCreate;
	botlib_import.DebugLineDelete = BotImport_DebugLineDelete;
	botlib_import.DebugLineShow = BotImport_DebugLineShow;

	//debug polygons
	botlib_import.DebugPolygonCreate = BotImport_DebugPolygonCreate;
	botlib_import.DebugPolygonDelete = BotImport_DebugPolygonDelete;

	botlib_export = (botlib_export_t *)GetBotLibAPI( BOTLIB_API_VERSION, &botlib_import );
	assert(botlib_export); 	// bk001129 - somehow we end up with a zero import.
}


//
//  * * * BOT AI CODE IS BELOW THIS POINT * * *
//

/*
==================
SV_BotGetConsoleMessage
==================
*/
int SV_BotGetConsoleMessage( int client, char *buf, int size )
{
	client_t	*cl;
	int			index;

	cl = &svs.clients[client];
	cl->lastPacketTime = svs.time;

	if ( cl->reliableAcknowledge == cl->reliableSequence ) {
		return qfalse;
	}

	cl->reliableAcknowledge++;
	index = cl->reliableAcknowledge & ( MAX_RELIABLE_COMMANDS - 1 );

	if ( !cl->reliableCommands[index][0] ) {
		return qfalse;
	}

	Q_strncpyz( buf, cl->reliableCommands[index], size );
	return qtrue;
}

#if 0
/*
==================
EntityInPVS
==================
*/
int EntityInPVS( int client, int entityNum ) {
	client_t			*cl;
	clientSnapshot_t	*frame;
	int					i;

	cl = &svs.clients[client];
	frame = &cl->frames[cl->netchan.outgoingSequence & PACKET_MASK];
	for ( i = 0; i < frame->num_entities; i++ )	{
		if ( svs.snapshotEntities[(frame->first_entity + i) % svs.numSnapshotEntities].number == entityNum ) {
			return qtrue;
		}
	}
	return qfalse;
}
#endif

/*
==================
SV_BotGetSnapshotEntity
==================
*/
int SV_BotGetSnapshotEntity( int client, int sequence ) {
	client_t			*cl;
	clientSnapshot_t	*frame;

	cl = &svs.clients[client];
	frame = &cl->frames[cl->netchan.outgoingSequence & PACKET_MASK];
	if (sequence < 0 || sequence >= frame->num_entities) {
		return -1;
	}
	return svs.snapshotEntities[(frame->first_entity + sequence) % svs.numSnapshotEntities].number;
}