ai_main.c

quakeIII源码这个不用我多说吧

	trap_BotFreeCharacter(bs->character);
	//
	BotFreeWaypoints(bs->checkpoints);
	BotFreeWaypoints(bs->patrolpoints);
	//clear activate goal stack
	BotClearActivateGoalStack(bs);
	//clear the bot state
	memset(bs, 0, sizeof(bot_state_t));
	//set the inuse flag to qfalse
	bs->inuse = qfalse;
	//there's one bot less
	numbots--;
	//everything went ok
	return qtrue;
}

/*
==============
BotResetState

called when a bot enters the intermission or observer mode and
when the level is changed
==============
*/
void BotResetState(bot_state_t *bs) {
	int client, entitynum, inuse;
	int movestate, goalstate, chatstate, weaponstate;
	bot_settings_t settings;
	int character;
	playerState_t ps;							//current player state
	float entergame_time;

	//save some things that should not be reset here
	memcpy(&settings, &bs->settings, sizeof(bot_settings_t));
	memcpy(&ps, &bs->cur_ps, sizeof(playerState_t));
	inuse = bs->inuse;
	client = bs->client;
	entitynum = bs->entitynum;
	character = bs->character;
	movestate = bs->ms;
	goalstate = bs->gs;
	chatstate = bs->cs;
	weaponstate = bs->ws;
	entergame_time = bs->entergame_time;
	//free checkpoints and patrol points
	BotFreeWaypoints(bs->checkpoints);
	BotFreeWaypoints(bs->patrolpoints);
	//reset the whole state
	memset(bs, 0, sizeof(bot_state_t));
	//copy back some state stuff that should not be reset
	bs->ms = movestate;
	bs->gs = goalstate;
	bs->cs = chatstate;
	bs->ws = weaponstate;
	memcpy(&bs->cur_ps, &ps, sizeof(playerState_t));
	memcpy(&bs->settings, &settings, sizeof(bot_settings_t));
	bs->inuse = inuse;
	bs->client = client;
	bs->entitynum = entitynum;
	bs->character = character;
	bs->entergame_time = entergame_time;
	//reset several states
	if (bs->ms) trap_BotResetMoveState(bs->ms);
	if (bs->gs) trap_BotResetGoalState(bs->gs);
	if (bs->ws) trap_BotResetWeaponState(bs->ws);
	if (bs->gs) trap_BotResetAvoidGoals(bs->gs);
	if (bs->ms) trap_BotResetAvoidReach(bs->ms);
}

/*
==============
BotAILoadMap
==============
*/
int BotAILoadMap( int restart ) {
	int			i;
	vmCvar_t	mapname;

	if (!restart) {
		trap_Cvar_Register( &mapname, "mapname", "", CVAR_SERVERINFO | CVAR_ROM );
		trap_BotLibLoadMap( mapname.string );
	}

	for (i = 0; i < MAX_CLIENTS; i++) {
		if (botstates[i] && botstates[i]->inuse) {
			BotResetState( botstates[i] );
			botstates[i]->setupcount = 4;
		}
	}

	BotSetupDeathmatchAI();

	return qtrue;
}

#ifdef MISSIONPACK
void ProximityMine_Trigger( gentity_t *trigger, gentity_t *other, trace_t *trace );
#endif

/*
==================
BotAIStartFrame
==================
*/
int BotAIStartFrame(int time) {
	int i;
	gentity_t	*ent;
	bot_entitystate_t state;
	int elapsed_time, thinktime;
	static int local_time;
	static int botlib_residual;
	static int lastbotthink_time;

	G_CheckBotSpawn();

	trap_Cvar_Update(&bot_rocketjump);
	trap_Cvar_Update(&bot_grapple);
	trap_Cvar_Update(&bot_fastchat);
	trap_Cvar_Update(&bot_nochat);
	trap_Cvar_Update(&bot_testrchat);
	trap_Cvar_Update(&bot_thinktime);
	trap_Cvar_Update(&bot_memorydump);
	trap_Cvar_Update(&bot_saveroutingcache);
	trap_Cvar_Update(&bot_pause);
	trap_Cvar_Update(&bot_report);

	if (bot_report.integer) {
//		BotTeamplayReport();
//		trap_Cvar_Set("bot_report", "0");
		BotUpdateInfoConfigStrings();
	}

	if (bot_pause.integer) {
		// execute bot user commands every frame
		for( i = 0; i < MAX_CLIENTS; i++ ) {
			if( !botstates[i] || !botstates[i]->inuse ) {
				continue;
			}
			if( g_entities[i].client->pers.connected != CON_CONNECTED ) {
				continue;
			}
			botstates[i]->lastucmd.forwardmove = 0;
			botstates[i]->lastucmd.rightmove = 0;
			botstates[i]->lastucmd.upmove = 0;
			botstates[i]->lastucmd.buttons = 0;
			botstates[i]->lastucmd.serverTime = time;
			trap_BotUserCommand(botstates[i]->client, &botstates[i]->lastucmd);
		}
		return qtrue;
	}

	if (bot_memorydump.integer) {
		trap_BotLibVarSet("memorydump", "1");
		trap_Cvar_Set("bot_memorydump", "0");
	}
	if (bot_saveroutingcache.integer) {
		trap_BotLibVarSet("saveroutingcache", "1");
		trap_Cvar_Set("bot_saveroutingcache", "0");
	}
	//check if bot interbreeding is activated
	BotInterbreeding();
	//cap the bot think time
	if (bot_thinktime.integer > 200) {
		trap_Cvar_Set("bot_thinktime", "200");
	}
	//if the bot think time changed we should reschedule the bots
	if (bot_thinktime.integer != lastbotthink_time) {
		lastbotthink_time = bot_thinktime.integer;
		BotScheduleBotThink();
	}

	elapsed_time = time - local_time;
	local_time = time;

	botlib_residual += elapsed_time;

	if (elapsed_time > bot_thinktime.integer) thinktime = elapsed_time;
	else thinktime = bot_thinktime.integer;

	// update the bot library
	if ( botlib_residual >= thinktime ) {
		botlib_residual -= thinktime;

		trap_BotLibStartFrame((float) time / 1000);

		if (!trap_AAS_Initialized()) return qfalse;

		//update entities in the botlib
		for (i = 0; i < MAX_GENTITIES; i++) {
			ent = &g_entities[i];
			if (!ent->inuse) {
				trap_BotLibUpdateEntity(i, NULL);
				continue;
			}
			if (!ent->r.linked) {
				trap_BotLibUpdateEntity(i, NULL);
				continue;
			}
			if (ent->r.svFlags & SVF_NOCLIENT) {
				trap_BotLibUpdateEntity(i, NULL);
				continue;
			}
			// do not update missiles
			if (ent->s.eType == ET_MISSILE && ent->s.weapon != WP_GRAPPLING_HOOK) {
				trap_BotLibUpdateEntity(i, NULL);
				continue;
			}
			// do not update event only entities
			if (ent->s.eType > ET_EVENTS) {
				trap_BotLibUpdateEntity(i, NULL);
				continue;
			}
#ifdef MISSIONPACK
			// never link prox mine triggers
			if (ent->r.contents == CONTENTS_TRIGGER) {
				if (ent->touch == ProximityMine_Trigger) {
					trap_BotLibUpdateEntity(i, NULL);
					continue;
				}
			}
#endif
			//
			memset(&state, 0, sizeof(bot_entitystate_t));
			//
			VectorCopy(ent->r.currentOrigin, state.origin);
			if (i < MAX_CLIENTS) {
				VectorCopy(ent->s.apos.trBase, state.angles);
			} else {
				VectorCopy(ent->r.currentAngles, state.angles);
			}
			VectorCopy(ent->s.origin2, state.old_origin);
			VectorCopy(ent->r.mins, state.mins);
			VectorCopy(ent->r.maxs, state.maxs);
			state.type = ent->s.eType;
			state.flags = ent->s.eFlags;
			if (ent->r.bmodel) state.solid = SOLID_BSP;
			else state.solid = SOLID_BBOX;
			state.groundent = ent->s.groundEntityNum;
			state.modelindex = ent->s.modelindex;
			state.modelindex2 = ent->s.modelindex2;
			state.frame = ent->s.frame;
			state.event = ent->s.event;
			state.eventParm = ent->s.eventParm;
			state.powerups = ent->s.powerups;
			state.legsAnim = ent->s.legsAnim;
			state.torsoAnim = ent->s.torsoAnim;
			state.weapon = ent->s.weapon;
			//
			trap_BotLibUpdateEntity(i, &state);
		}

		BotAIRegularUpdate();
	}

	floattime = trap_AAS_Time();

	// execute scheduled bot AI
	for( i = 0; i < MAX_CLIENTS; i++ ) {
		if( !botstates[i] || !botstates[i]->inuse ) {
			continue;
		}
		//
		botstates[i]->botthink_residual += elapsed_time;
		//
		if ( botstates[i]->botthink_residual >= thinktime ) {
			botstates[i]->botthink_residual -= thinktime;

			if (!trap_AAS_Initialized()) return qfalse;

			if (g_entities[i].client->pers.connected == CON_CONNECTED) {
				BotAI(i, (float) thinktime / 1000);
			}
		}
	}


	// execute bot user commands every frame
	for( i = 0; i < MAX_CLIENTS; i++ ) {
		if( !botstates[i] || !botstates[i]->inuse ) {
			continue;
		}
		if( g_entities[i].client->pers.connected != CON_CONNECTED ) {
			continue;
		}

		BotUpdateInput(botstates[i], time, elapsed_time);
		trap_BotUserCommand(botstates[i]->client, &botstates[i]->lastucmd);
	}

	return qtrue;
}

/*
==============
BotInitLibrary
==============
*/
int BotInitLibrary(void) {
	char buf[144];

	//set the maxclients and maxentities library variables before calling BotSetupLibrary
	trap_Cvar_VariableStringBuffer("sv_maxclients", buf, sizeof(buf));
	if (!strlen(buf)) strcpy(buf, "8");
	trap_BotLibVarSet("maxclients", buf);
	Com_sprintf(buf, sizeof(buf), "%d", MAX_GENTITIES);
	trap_BotLibVarSet("maxentities", buf);
	//bsp checksum
	trap_Cvar_VariableStringBuffer("sv_mapChecksum", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("sv_mapChecksum", buf);
	//maximum number of aas links
	trap_Cvar_VariableStringBuffer("max_aaslinks", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("max_aaslinks", buf);
	//maximum number of items in a level
	trap_Cvar_VariableStringBuffer("max_levelitems", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("max_levelitems", buf);
	//game type
	trap_Cvar_VariableStringBuffer("g_gametype", buf, sizeof(buf));
	if (!strlen(buf)) strcpy(buf, "0");
	trap_BotLibVarSet("g_gametype", buf);
	//bot developer mode and log file
	trap_BotLibVarSet("bot_developer", bot_developer.string);
	trap_BotLibVarSet("log", buf);
	//no chatting
	trap_Cvar_VariableStringBuffer("bot_nochat", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("nochat", "0");
	//visualize jump pads
	trap_Cvar_VariableStringBuffer("bot_visualizejumppads", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("bot_visualizejumppads", buf);
	//forced clustering calculations
	trap_Cvar_VariableStringBuffer("bot_forceclustering", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("forceclustering", buf);
	//forced reachability calculations
	trap_Cvar_VariableStringBuffer("bot_forcereachability", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("forcereachability", buf);
	//force writing of AAS to file
	trap_Cvar_VariableStringBuffer("bot_forcewrite", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("forcewrite", buf);
	//no AAS optimization
	trap_Cvar_VariableStringBuffer("bot_aasoptimize", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("aasoptimize", buf);
	//
	trap_Cvar_VariableStringBuffer("bot_saveroutingcache", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("saveroutingcache", buf);
	//reload instead of cache bot character files
	trap_Cvar_VariableStringBuffer("bot_reloadcharacters", buf, sizeof(buf));
	if (!strlen(buf)) strcpy(buf, "0");
	trap_BotLibVarSet("bot_reloadcharacters", buf);
	//base directory
	trap_Cvar_VariableStringBuffer("fs_basepath", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("basedir", buf);
	//game directory
	trap_Cvar_VariableStringBuffer("fs_game", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("gamedir", buf);
	//cd directory
	trap_Cvar_VariableStringBuffer("fs_cdpath", buf, sizeof(buf));
	if (strlen(buf)) trap_BotLibVarSet("cddir", buf);
	//
#ifdef MISSIONPACK
	trap_BotLibDefine("MISSIONPACK");
#endif
	//setup the bot library
	return trap_BotLibSetup();
}

/*
==============
BotAISetup
==============
*/
int BotAISetup( int restart ) {
	int			errnum;

	trap_Cvar_Register(&bot_thinktime, "bot_thinktime", "100", CVAR_CHEAT);
	trap_Cvar_Register(&bot_memorydump, "bot_memorydump", "0", CVAR_CHEAT);
	trap_Cvar_Register(&bot_saveroutingcache, "bot_saveroutingcache", "0", CVAR_CHEAT);
	trap_Cvar_Register(&bot_pause, "bot_pause", "0", CVAR_CHEAT);
	trap_Cvar_Register(&bot_report, "bot_report", "0", CVAR_CHEAT);
	trap_Cvar_Register(&bot_testsolid, "bot_testsolid", "0", CVAR_CHEAT);
	trap_Cvar_Register(&bot_testclusters, "bot_testclusters", "0", CVAR_CHEAT);
	trap_Cvar_Register(&bot_developer, "bot_developer", "0", CVAR_CHEAT);
	trap_Cvar_Register(&bot_interbreedchar, "bot_interbreedchar", "", 0);
	trap_Cvar_Register(&bot_interbreedbots, "bot_interbreedbots", "10", 0);
	trap_Cvar_Register(&bot_interbreedcycle, "bot_interbreedcycle", "20", 0);
	trap_Cvar_Register(&bot_interbreedwrite, "bot_interbreedwrite", "", 0);

	//if the game is restarted for a tournament
	if (restart) {
		return qtrue;
	}

	//initialize the bot states
	memset( botstates, 0, sizeof(botstates) );

	errnum = BotInitLibrary();
	if (errnum != BLERR_NOERROR) return qfalse;
	return qtrue;
}

/*
==============
BotAIShutdown
==============
*/
int BotAIShutdown( int restart ) {

	int i;

	//if the game is restarted for a tournament
	if ( restart ) {
		//shutdown all the bots in the botlib
		for (i = 0; i < MAX_CLIENTS; i++) {
			if (botstates[i] && botstates[i]->inuse) {
				BotAIShutdownClient(botstates[i]->client, restart);
			}
		}
		//don't shutdown the bot library
	}
	else {
		trap_BotLibShutdown();
	}
	return qtrue;
}