ai_dmq3.c

quakeIII源码这个不用我多说吧

			case TEAM_RED: goal = &blueobelisk; break;
			default: goal = &redobelisk; break;
		}
		//if the obelisk is visible
		VectorCopy(goal->origin, target);
		target[2] += 1;
		VectorSubtract(bs->origin, target, dir);
		if (VectorLengthSquared(dir) < Square(KAMIKAZE_DIST * 0.9)) {
			BotAI_Trace(&trace, bs->eye, NULL, NULL, target, bs->client, CONTENTS_SOLID);
			if (trace.fraction >= 1 || trace.ent == goal->entitynum) {
				trap_EA_Use(bs->client);
				return;
			}
		}
	}
	else if (gametype == GT_HARVESTER) {
		//
		if (BotHarvesterCarryingCubes(bs))
			return;
		//never use kamikaze if a team mate carrying cubes is visible
		c = BotTeamCubeCarrierVisible(bs);
		if (c >= 0) {
			BotEntityInfo(c, &entinfo);
			VectorSubtract(entinfo.origin, bs->origin, dir);
			if (VectorLengthSquared(dir) < Square(KAMIKAZE_DIST))
				return;
		}
		c = BotEnemyCubeCarrierVisible(bs);
		if (c >= 0) {
			BotEntityInfo(c, &entinfo);
			VectorSubtract(entinfo.origin, bs->origin, dir);
			if (VectorLengthSquared(dir) < Square(KAMIKAZE_DIST)) {
				trap_EA_Use(bs->client);
				return;
			}
		}
	}
	//
	BotVisibleTeamMatesAndEnemies(bs, &teammates, &enemies, KAMIKAZE_DIST);
	//
	if (enemies > 2 && enemies > teammates+1) {
		trap_EA_Use(bs->client);
		return;
	}
}

/*
==================
BotUseInvulnerability
==================
*/
void BotUseInvulnerability(bot_state_t *bs) {
	int c;
	vec3_t dir, target;
	bot_goal_t *goal;
	bsp_trace_t trace;

	//if the bot has no invulnerability
	if (bs->inventory[INVENTORY_INVULNERABILITY] <= 0)
		return;
	if (bs->invulnerability_time > FloatTime())
		return;
	bs->invulnerability_time = FloatTime() + 0.2;
	if (gametype == GT_CTF) {
		//never use kamikaze if the team flag carrier is visible
		if (BotCTFCarryingFlag(bs))
			return;
		c = BotEnemyFlagCarrierVisible(bs);
		if (c >= 0)
			return;
		//if near enemy flag and the flag is visible
		switch(BotTeam(bs)) {
			case TEAM_RED: goal = &ctf_blueflag; break;
			default: goal = &ctf_redflag; break;
		}
		//if the obelisk is visible
		VectorCopy(goal->origin, target);
		target[2] += 1;
		VectorSubtract(bs->origin, target, dir);
		if (VectorLengthSquared(dir) < Square(200)) {
			BotAI_Trace(&trace, bs->eye, NULL, NULL, target, bs->client, CONTENTS_SOLID);
			if (trace.fraction >= 1 || trace.ent == goal->entitynum) {
				trap_EA_Use(bs->client);
				return;
			}
		}
	}
	else if (gametype == GT_1FCTF) {
		//never use kamikaze if the team flag carrier is visible
		if (Bot1FCTFCarryingFlag(bs))
			return;
		c = BotEnemyFlagCarrierVisible(bs);
		if (c >= 0)
			return;
		//if near enemy flag and the flag is visible
		switch(BotTeam(bs)) {
			case TEAM_RED: goal = &ctf_blueflag; break;
			default: goal = &ctf_redflag; break;
		}
		//if the obelisk is visible
		VectorCopy(goal->origin, target);
		target[2] += 1;
		VectorSubtract(bs->origin, target, dir);
		if (VectorLengthSquared(dir) < Square(200)) {
			BotAI_Trace(&trace, bs->eye, NULL, NULL, target, bs->client, CONTENTS_SOLID);
			if (trace.fraction >= 1 || trace.ent == goal->entitynum) {
				trap_EA_Use(bs->client);
				return;
			}
		}
	}
	else if (gametype == GT_OBELISK) {
		switch(BotTeam(bs)) {
			case TEAM_RED: goal = &blueobelisk; break;
			default: goal = &redobelisk; break;
		}
		//if the obelisk is visible
		VectorCopy(goal->origin, target);
		target[2] += 1;
		VectorSubtract(bs->origin, target, dir);
		if (VectorLengthSquared(dir) < Square(300)) {
			BotAI_Trace(&trace, bs->eye, NULL, NULL, target, bs->client, CONTENTS_SOLID);
			if (trace.fraction >= 1 || trace.ent == goal->entitynum) {
				trap_EA_Use(bs->client);
				return;
			}
		}
	}
	else if (gametype == GT_HARVESTER) {
		//
		if (BotHarvesterCarryingCubes(bs))
			return;
		c = BotEnemyCubeCarrierVisible(bs);
		if (c >= 0)
			return;
		//if near enemy base and enemy base is visible
		switch(BotTeam(bs)) {
			case TEAM_RED: goal = &blueobelisk; break;
			default: goal = &redobelisk; break;
		}
		//if the obelisk is visible
		VectorCopy(goal->origin, target);
		target[2] += 1;
		VectorSubtract(bs->origin, target, dir);
		if (VectorLengthSquared(dir) < Square(200)) {
			BotAI_Trace(&trace, bs->eye, NULL, NULL, target, bs->client, CONTENTS_SOLID);
			if (trace.fraction >= 1 || trace.ent == goal->entitynum) {
				trap_EA_Use(bs->client);
				return;
			}
		}
	}
}
#endif

/*
==================
BotBattleUseItems
==================
*/
void BotBattleUseItems(bot_state_t *bs) {
	if (bs->inventory[INVENTORY_HEALTH] < 40) {
		if (bs->inventory[INVENTORY_TELEPORTER] > 0) {
			if (!BotCTFCarryingFlag(bs)
#ifdef MISSIONPACK
				&& !Bot1FCTFCarryingFlag(bs)
				&& !BotHarvesterCarryingCubes(bs)
#endif
				) {
				trap_EA_Use(bs->client);
			}
		}
	}
	if (bs->inventory[INVENTORY_HEALTH] < 60) {
		if (bs->inventory[INVENTORY_MEDKIT] > 0) {
			trap_EA_Use(bs->client);
		}
	}
#ifdef MISSIONPACK
	BotUseKamikaze(bs);
	BotUseInvulnerability(bs);
#endif
}

/*
==================
BotSetTeleportTime
==================
*/
void BotSetTeleportTime(bot_state_t *bs) {
	if ((bs->cur_ps.eFlags ^ bs->last_eFlags) & EF_TELEPORT_BIT) {
		bs->teleport_time = FloatTime();
	}
	bs->last_eFlags = bs->cur_ps.eFlags;
}

/*
==================
BotIsDead
==================
*/
qboolean BotIsDead(bot_state_t *bs) {
	return (bs->cur_ps.pm_type == PM_DEAD);
}

/*
==================
BotIsObserver
==================
*/
qboolean BotIsObserver(bot_state_t *bs) {
	char buf[MAX_INFO_STRING];
	if (bs->cur_ps.pm_type == PM_SPECTATOR) return qtrue;
	trap_GetConfigstring(CS_PLAYERS+bs->client, buf, sizeof(buf));
	if (atoi(Info_ValueForKey(buf, "t")) == TEAM_SPECTATOR) return qtrue;
	return qfalse;
}

/*
==================
BotIntermission
==================
*/
qboolean BotIntermission(bot_state_t *bs) {
	//NOTE: we shouldn't be looking at the game code...
	if (level.intermissiontime) return qtrue;
	return (bs->cur_ps.pm_type == PM_FREEZE || bs->cur_ps.pm_type == PM_INTERMISSION);
}

/*
==================
BotInLavaOrSlime
==================
*/
qboolean BotInLavaOrSlime(bot_state_t *bs) {
	vec3_t feet;

	VectorCopy(bs->origin, feet);
	feet[2] -= 23;
	return (trap_AAS_PointContents(feet) & (CONTENTS_LAVA|CONTENTS_SLIME));
}

/*
==================
BotCreateWayPoint
==================
*/
bot_waypoint_t *BotCreateWayPoint(char *name, vec3_t origin, int areanum) {
	bot_waypoint_t *wp;
	vec3_t waypointmins = {-8, -8, -8}, waypointmaxs = {8, 8, 8};

	wp = botai_freewaypoints;
	if ( !wp ) {
		BotAI_Print( PRT_WARNING, "BotCreateWayPoint: Out of waypoints\n" );
		return NULL;
	}
	botai_freewaypoints = botai_freewaypoints->next;

	Q_strncpyz( wp->name, name, sizeof(wp->name) );
	VectorCopy(origin, wp->goal.origin);
	VectorCopy(waypointmins, wp->goal.mins);
	VectorCopy(waypointmaxs, wp->goal.maxs);
	wp->goal.areanum = areanum;
	wp->next = NULL;
	wp->prev = NULL;
	return wp;
}

/*
==================
BotFindWayPoint
==================
*/
bot_waypoint_t *BotFindWayPoint(bot_waypoint_t *waypoints, char *name) {
	bot_waypoint_t *wp;

	for (wp = waypoints; wp; wp = wp->next) {
		if (!Q_stricmp(wp->name, name)) return wp;
	}
	return NULL;
}

/*
==================
BotFreeWaypoints
==================
*/
void BotFreeWaypoints(bot_waypoint_t *wp) {
	bot_waypoint_t *nextwp;

	for (; wp; wp = nextwp) {
		nextwp = wp->next;
		wp->next = botai_freewaypoints;
		botai_freewaypoints = wp;
	}
}

/*
==================
BotInitWaypoints
==================
*/
void BotInitWaypoints(void) {
	int i;

	botai_freewaypoints = NULL;
	for (i = 0; i < MAX_WAYPOINTS; i++) {
		botai_waypoints[i].next = botai_freewaypoints;
		botai_freewaypoints = &botai_waypoints[i];
	}
}

/*
==================
TeamPlayIsOn
==================
*/
int TeamPlayIsOn(void) {
	return ( gametype >= GT_TEAM );
}

/*
==================
BotAggression
==================
*/
float BotAggression(bot_state_t *bs) {
	//if the bot has quad
	if (bs->inventory[INVENTORY_QUAD]) {
		//if the bot is not holding the gauntlet or the enemy is really nearby
		if (bs->weaponnum != WP_GAUNTLET ||
			bs->inventory[ENEMY_HORIZONTAL_DIST] < 80) {
			return 70;
		}
	}
	//if the enemy is located way higher than the bot
	if (bs->inventory[ENEMY_HEIGHT] > 200) return 0;
	//if the bot is very low on health
	if (bs->inventory[INVENTORY_HEALTH] < 60) return 0;
	//if the bot is low on health
	if (bs->inventory[INVENTORY_HEALTH] < 80) {
		//if the bot has insufficient armor
		if (bs->inventory[INVENTORY_ARMOR] < 40) return 0;
	}
	//if the bot can use the bfg
	if (bs->inventory[INVENTORY_BFG10K] > 0 &&
			bs->inventory[INVENTORY_BFGAMMO] > 7) return 100;
	//if the bot can use the railgun
	if (bs->inventory[INVENTORY_RAILGUN] > 0 &&
			bs->inventory[INVENTORY_SLUGS] > 5) return 95;
	//if the bot can use the lightning gun
	if (bs->inventory[INVENTORY_LIGHTNING] > 0 &&
			bs->inventory[INVENTORY_LIGHTNINGAMMO] > 50) return 90;
	//if the bot can use the rocketlauncher
	if (bs->inventory[INVENTORY_ROCKETLAUNCHER] > 0 &&
			bs->inventory[INVENTORY_ROCKETS] > 5) return 90;
	//if the bot can use the plasmagun
	if (bs->inventory[INVENTORY_PLASMAGUN] > 0 &&
			bs->inventory[INVENTORY_CELLS] > 40) return 85;
	//if the bot can use the grenade launcher
	if (bs->inventory[INVENTORY_GRENADELAUNCHER] > 0 &&
			bs->inventory[INVENTORY_GRENADES] > 10) return 80;
	//if the bot can use the shotgun
	if (bs->inventory[INVENTORY_SHOTGUN] > 0 &&
			bs->inventory[INVENTORY_SHELLS] > 10) return 50;
	//otherwise the bot is not feeling too good
	return 0;
}

/*
==================
BotFeelingBad
==================
*/
float BotFeelingBad(bot_state_t *bs) {
	if (bs->weaponnum == WP_GAUNTLET) {
		return 100;
	}
	if (bs->inventory[INVENTORY_HEALTH] < 40) {
		return 100;
	}
	if (bs->weaponnum == WP_MACHINEGUN) {
		return 90;
	}
	if (bs->inventory[INVENTORY_HEALTH] < 60) {
		return 80;
	}
	return 0;
}

/*
==================
BotWantsToRetreat
==================
*/
int BotWantsToRetreat(bot_state_t *bs) {
	aas_entityinfo_t entinfo;

	if (gametype == GT_CTF) {
		//always retreat when carrying a CTF flag
		if (BotCTFCarryingFlag(bs))
			return qtrue;
	}
#ifdef MISSIONPACK
	else if (gametype == GT_1FCTF) {
		//if carrying the flag then always retreat
		if (Bot1FCTFCarryingFlag(bs))
			return qtrue;
	}
	else if (gametype == GT_OBELISK) {
		//the bots should be dedicated to attacking the enemy obelisk
		if (bs->ltgtype == LTG_ATTACKENEMYBASE) {
			if (bs->enemy != redobelisk.entitynum ||
						bs->enemy != blueobelisk.entitynum) {
				return qtrue;
			}
		}
		if (BotFeelingBad(bs) > 50) {
			return qtrue;
		}
		return qfalse;
	}
	else if (gametype == GT_HARVESTER) {
		//if carrying cubes then always retreat
		if (BotHarvesterCarryingCubes(bs)) return qtrue;
	}
#endif
	//
	if (bs->enemy >= 0) {
		//if the enemy is carrying a flag
		BotEntityInfo(bs->enemy, &entinfo);
		if (EntityCarriesFlag(&entinfo))
			return qfalse;
	}
	//if the bot is getting the flag
	if (bs->ltgtype == LTG_GETFLAG)
		return qtrue;
	//
	if (BotAggression(bs) < 50)
		return qtrue;
	return qfalse;
}

/*
==================
BotWantsToChase
==================
*/
int BotWantsToChase(bot_state_t *bs) {
	aas_entityinfo_t entinfo;

	if (gametype == GT_CTF) {
		//never chase when carrying a CTF flag
		if (BotCTFCarryingFlag(bs))
			return qfalse;
		//always chase if the enemy is carrying a flag
		BotEntityInfo(bs->enemy, &entinfo);
		if (EntityCarriesFlag(&entinfo))
			return qtrue;
	}
#ifdef MISSIONPACK
	else if (gametype == GT_1FCTF) {
		//never chase if carrying the flag
		if (Bot1FCTFCarryingFlag(bs))
			return qfalse;
		/