AI Hive Wars (cmss13-devs#93)

Co-authored-by: morrow <[email protected]>

code/__DEFINES/xeno_ai.dm

@@ -23,7 +23,7 @@ PROBABILITY CALCULATIONS ARE HERE
 
 #define XENO_SLASH 80
 
-#define XENO_DOOR_BUILDING_CHANCE 25
+#define XENO_DOOR_BUILDING_CHANCE 40
 
 #define PLASMA_RETREAT_PERCENTAGE 10
 #define HEALTH_RETREAT_PERCENTAGE 20
@@ -91,3 +91,6 @@ PROBABILITY CALCULATIONS ARE HERE
 
 /// Special blockers for pathfinding or obstacle handling
 #define XENO_AI_SPECIAL_BLOCKERS list(/obj/flamer_fire, /obj/vehicle/multitile, /turf/open/space)
+
+// Friend-or-foe universal check
+#define IS_SAME_HIVENUMBER(A,B) (A.hivenumber == B.hivenumber)

code/datums/components/xeno/ai_behavior_overrides/attack_override_behavior.dm

@@ -27,7 +27,7 @@
 		return FALSE
 
 	processing_xeno.current_target = parent
-	processing_xeno.resting = FALSE
+	processing_xeno.set_resting(FALSE, FALSE, TRUE)
 	if(prob(5))
 		processing_xeno.emote("hiss")
 

code/datums/components/xeno/ai_behavior_overrides/base_override_behavior.dm

@@ -36,13 +36,21 @@ GLOBAL_LIST_EMPTY(all_ai_behavior_overrides)
 		game_master.images -= behavior_image
 
 	QDEL_NULL(behavior_image)
+
+	for(var/assigned_xeno in currently_assigned)
+		UnregisterSignal(assigned_xeno, COMSIG_PARENT_QDELETING)
 	currently_assigned = null
 
 	. = ..()
 
 /// Override this to check if we want our behavior to be valid for the checked_xeno, passes the common factor of "distance" which is the distance between the checked_xeno and src parent
 /datum/component/ai_behavior_override/proc/check_behavior_validity(mob/living/carbon/xenomorph/checked_xeno, distance)
 	if(length(currently_assigned) >= max_assigned && !(checked_xeno in currently_assigned))
+		remove_from_queue(checked_xeno)
+		return FALSE
+
+	if(checked_xeno.stat != CONSCIOUS)
+		remove_from_queue(checked_xeno)
 		return FALSE
 
 	return TRUE
@@ -51,6 +59,14 @@ GLOBAL_LIST_EMPTY(all_ai_behavior_overrides)
 /datum/component/ai_behavior_override/proc/process_override_behavior(mob/living/carbon/xenomorph/processing_xeno, delta_time)
 	SHOULD_NOT_SLEEP(TRUE)
 
+	RegisterSignal(processing_xeno, COMSIG_PARENT_QDELETING, PROC_REF(remove_from_queue), TRUE)
 	currently_assigned |= processing_xeno
 
 	return TRUE
+
+/datum/component/ai_behavior_override/proc/remove_from_queue(mob/removed_xeno)
+	SIGNAL_HANDLER
+	if(currently_assigned)
+		currently_assigned -= removed_xeno
+
+	UnregisterSignal(removed_xeno, COMSIG_PARENT_QDELETING)

code/datums/components/xeno/ai_behavior_overrides/build_override_behavior.dm

@@ -35,6 +35,14 @@
 		qdel(src)
 		return FALSE
 
+	var/area/current_area = get_area(location)
+	if(!current_area.is_resin_allowed)
+		for(var/client/game_master in GLOB.game_masters)
+			to_chat(game_master, SPAN_XENOBOLDNOTICE("This area doesn't allow xenos to build here"))
+
+		qdel(src)
+		return FALSE
+
 	if(distance > 10)
 		return FALSE
 
@@ -46,9 +54,8 @@
 
 	if(checked_xeno.get_plasma_percentage() < PLASMA_RETREAT_PERCENTAGE)
 		var/turf/xeno_loc = get_turf(checked_xeno)
-		if(xeno_loc.weeds && !checked_xeno.resting)
-			currently_assigned -= checked_xeno
-			checked_xeno.lay_down()
+		if(xeno_loc.weeds)
+			checked_xeno.set_resting(TRUE, FALSE, TRUE)
 
 		return FALSE
 
@@ -59,16 +66,21 @@
 	if(!.)
 		return
 
-	processing_xeno.resting = FALSE
+	processing_xeno.set_resting(FALSE, FALSE, TRUE)
 
 	var/turf/xeno_loc = get_turf(processing_xeno)
 	if(xeno_loc.density)
 		return FALSE // We shouldn't stand in a wall, let's act default
 
 	var/turf/parent_turf = get_turf(parent)
+	var/distance = get_dist(processing_xeno, parent)
+
+	var/list/turfs_around = xeno_loc.AdjacentTurfs()
+	if(turfs_around && distance < 1) // We are gonna be stuck after building at our loc, let's step away
+		return processing_xeno.move_to_next_turf(pick(turfs_around))
 
 	var/is_diagonal = (get_dir(processing_xeno, parent_turf) in diagonals)
-	if(is_diagonal || get_dist(processing_xeno, parent) > 1)
+	if(is_diagonal || distance > 1)
 		return processing_xeno.move_to_next_turf(parent_turf)
 
 	for(var/obj/structure/blocker in parent_turf.contents)
@@ -84,19 +96,23 @@
 	var/list/resin_types = processing_xeno.resin_build_order
 	processing_xeno.selected_resin = locate(/datum/resin_construction/resin_turf/wall) in resin_types
 
-	var/wall_nearby
+	var/wall_nearby = FALSE
 	var/blocked_turfs = 0
 	for(var/turf/blocked_turf in orange(1, parent_turf) - parent_turf.AdjacentTurfs())
+		blocked_turfs++
+
 		if(get_dir(blocked_turf, parent_turf) in diagonals)
 			continue
 
 		if(blocked_turf.density)
 			wall_nearby = TRUE
 
-		blocked_turfs++
+		var/obj/effect/alien/weeds/turf_weeds = blocked_turf.weeds
+		if(turf_weeds && turf_weeds.secreting)
+			wall_nearby = TRUE // Something is being constructed nearby, let's bet this is a new resin wall
 
-	if(blocked_turfs)
-		if(prob(XENO_DOOR_BUILDING_CHANCE) || (wall_nearby && blocked_turfs == 2))
+	if(wall_nearby)
+		if(prob(XENO_DOOR_BUILDING_CHANCE) || (wall_nearby && blocked_turfs > 1))
 			processing_xeno.selected_resin = locate(/datum/resin_construction/resin_obj/door) in resin_types
 
 	var/datum/action/xeno_action/activable/secrete_resin/build_action = locate() in processing_xeno.actions

code/datums/components/xeno/ai_behavior_overrides/capture_override_behavior.dm

@@ -7,10 +7,11 @@
 /datum/component/ai_behavior_override/capture/Initialize(...)
 	. = ..()
 
-	if(!istype(parent, /mob))
-		return COMPONENT_INCOMPATIBLE
+	if(!ishuman(parent))
+		var/mob/living/carbon/human/new_parent = locate() in get_turf(parent)
+		if(new_parent)
+			new_parent.AddComponent(/datum/component/ai_behavior_override/capture)
 
-	if(isxeno(parent))
 		return COMPONENT_INCOMPATIBLE
 
 /datum/component/ai_behavior_override/capture/check_behavior_validity(mob/living/carbon/xenomorph/checked_xeno, distance)
@@ -20,10 +21,10 @@
 
 	var/mob/parent_mob = parent
 
-	var/stat = parent_mob.stat
+	var/captee_stat = parent_mob.stat
 	var/mob/pulledby = parent_mob.pulledby
 
-	if(stat == DEAD)
+	if(captee_stat == DEAD)
 		qdel(src)
 		return FALSE
 
@@ -41,7 +42,7 @@
 	if(distance > 10)
 		return FALSE
 
-	if(stat == CONSCIOUS)
+	if(captee_stat == CONSCIOUS)
 		return FALSE
 
 	if(isxeno(pulledby) && pulledby != checked_xeno)
@@ -55,7 +56,7 @@
 		return
 
 	processing_xeno.current_target = parent
-	processing_xeno.resting = FALSE
+	processing_xeno.set_resting(FALSE, FALSE, TRUE)
 
 	if(processing_xeno.get_active_hand())
 		processing_xeno.swap_hand()

code/datums/components/xeno/ai_behavior_overrides/hive_override_behavior.dm

@@ -9,7 +9,7 @@ GLOBAL_LIST_EMPTY(ai_hives)
 
 	max_assigned = 0
 
-	var/hive_radius = 7
+	var/hive_radius = 5
 
 /datum/component/ai_behavior_override/hive/Initialize(...)
 	. = ..()

code/game/gamemodes/colonialmarines/ai/colonialmarines_ai.dm

@@ -43,6 +43,10 @@
 
 	. = ..()
 
+/datum/game_mode/colonialmarines/ai/post_setup()
+	set_lz_resin_allowed(TRUE)
+	return ..()
+
 /datum/game_mode/colonialmarines/ai/announce_bioscans()
 	return
 

code/modules/mob/living/carbon/xenomorph/abilities/crusher/crusher_abilities.dm

@@ -149,29 +149,29 @@
 
 	var/list/possible_charge_dirs = list()
 
-	for(var/mob/living/carbon/human/base_checked_human as anything in GLOB.alive_human_list)
-		var/distance_between_base_human_and_xeno = get_dist(processing_xeno, base_checked_human)
+	for(var/mob/living/carbon/base_checked_carbon as anything in GLOB.alive_mob_list)
+		var/distance_between_base_carbon_and_xeno = get_dist(processing_xeno, base_checked_carbon)
 
-		if(distance_between_base_human_and_xeno > MAXIMUM_TARGET_DISTANCE)
+		if(distance_between_base_carbon_and_xeno > MAXIMUM_TARGET_DISTANCE)
 			continue
 
-		if(distance_between_base_human_and_xeno < MINIMUM_CHARGE_DISTANCE)
+		if(distance_between_base_carbon_and_xeno < MINIMUM_CHARGE_DISTANCE)
 			continue
 
-		if(!processing_xeno.check_mob_target(base_checked_human))
+		if(!base_checked_carbon.ai_can_target(processing_xeno))
 			continue
 
 		var/secondary_count = 0
 		var/secondary_x_sum = 0
 		var/secondary_y_sum = 0
 
-		for(var/mob/living/carbon/human/secondary_checked_human in range(FLOCK_SCAN_RADIUS, base_checked_human))
-			if(!processing_xeno.check_mob_target(secondary_checked_human))
+		for(var/mob/living/carbon/secondary_checked_carbon in range(FLOCK_SCAN_RADIUS, base_checked_carbon))
+			if(!secondary_checked_carbon.ai_can_target(processing_xeno))
 				continue
 
 			secondary_count++
-			secondary_x_sum += secondary_checked_human.x
-			secondary_y_sum += secondary_checked_human.y
+			secondary_x_sum += secondary_checked_carbon.x
+			secondary_y_sum += secondary_checked_carbon.y
 
 		if(secondary_count < MIN_TARGETS_TO_CHARGE)
 			continue
@@ -305,6 +305,9 @@
 			if(hit_human.body_position == LYING_DOWN)
 				continue
 
+			if(xeno.can_not_harm(hit_human))
+				continue
+
 			shake_camera(hit_human, 4, 2)
 			INVOKE_ASYNC(GLOBAL_PROC, GLOBAL_PROC_REF(xeno_throw_human), hit_human, xeno, get_dir(xeno, hit_human), 1, FALSE)
 			to_chat(hit_human, SPAN_XENOHIGHDANGER("You fall backwards as [xeno] gives you a glancing blow!"))

code/modules/mob/living/carbon/xenomorph/abilities/crusher/crusher_powers.dm

@@ -127,7 +127,7 @@
 	xeno_owner.create_stomp()
 
 	for(var/mob/living/carbon/carbon_in_range in range(distance, get_turf(xeno_owner)))
-		if(carbon_in_range.stat == DEAD || xeno_owner.can_not_harm(carbon_in_range))
+		if(xeno_owner.can_not_harm(carbon_in_range))
 			continue
 
 		var/distance_to_target = get_dist(carbon_in_range, xeno_owner)

code/modules/mob/living/carbon/xenomorph/abilities/warrior/warrior_powers.dm

@@ -119,6 +119,7 @@
 	woyer.flick_attack_overlay(carbone, "disarm")
 	carbone.throw_atom(throw_turf, fling_distance, SPEED_VERY_FAST, woyer, TRUE)
 
+	COOLDOWN_RESET(woyer, forced_retarget_cooldown)
 	apply_cooldown()
 	return ..()
 

code/modules/mob/living/carbon/xenomorph/ai/movement/base_define.dm

@@ -25,25 +25,27 @@
 	if(idle_xeno.throwing)
 		return
 
-	if(next_home_search < world.time && (!home_turf || !home_turf.weeds || get_dist(home_turf, idle_xeno) > max_distance_from_home))
+	if(next_home_search < world.time && (!home_turf || !home_turf.weeds || !IS_SAME_HIVENUMBER(idle_xeno, home_turf.weeds) || get_dist(home_turf, idle_xeno) > max_distance_from_home))
 		var/turf/T = get_turf(idle_xeno.loc)
 		next_home_search = world.time + home_search_delay
-		if(T.weeds)
+		var/obj/effect/alien/weeds/current_weeds = T.weeds
+		if(current_weeds && IS_SAME_HIVENUMBER(idle_xeno, current_weeds))
 			home_turf = T
 		else
 			var/shortest_distance = INFINITY
 			for(var/i in RANGE_TURFS(home_locate_range, T))
 				var/turf/potential_home = i
-				if(potential_home.weeds && !potential_home.density && get_dist(idle_xeno, potential_home) < shortest_distance)
+				var/obj/effect/alien/weeds/potential_weeds = potential_home.weeds
+				if(potential_weeds && IS_SAME_HIVENUMBER(idle_xeno, potential_weeds) && !potential_home.density && get_dist(idle_xeno, potential_home) < shortest_distance)
 					home_turf = potential_home
 					shortest_distance = get_dist(idle_xeno, potential_home)
-
+			idle_xeno.set_resting(FALSE, FALSE, TRUE)
 	if(!home_turf)
 		return
 
 	if(idle_xeno.move_to_next_turf(home_turf, home_locate_range))
-		if(get_dist(home_turf, idle_xeno) <= 0 && !idle_xeno.resting)
-			idle_xeno.lay_down()
+		if(get_dist(home_turf, idle_xeno) <= 0)
+			idle_xeno.set_resting(TRUE, FALSE, TRUE)
 	else
 		home_turf = null
 

code/modules/mob/living/carbon/xenomorph/ai/movement/drone.dm

@@ -50,11 +50,10 @@
 		home_turf = potential_home
 
 	if(!home_turf)
-		if(!idle_xeno.resting)
-			idle_xeno.lay_down()
+		idle_xeno.set_resting(TRUE, FALSE, TRUE)
 		return
 
-	idle_xeno.resting = FALSE
+	idle_xeno.set_resting(FALSE, FALSE, TRUE)
 
 	if(home_turf == last_home_turf)
 		blacklisted_turfs += home_turf
@@ -79,13 +78,15 @@
 	if(checked_turf in blacklisted_turfs)
 		return FALSE
 
-	if(checked_turf.weeds)
+	var/obj/effect/alien/weeds/checked_weeds = checked_turf.weeds
+	if(checked_weeds && IS_SAME_HIVENUMBER(checked_weeds, parent))
 		return FALSE
 
 	if(checked_turf.is_weedable() < FULLY_WEEDABLE)
 		return FALSE
 
-	if(locate(/obj/effect/alien/weeds/node) in range(3, checked_turf))
+	var/obj/effect/alien/weeds/found_weeds = locate(/obj/effect/alien/weeds/node) in range(3, checked_turf)
+	if(found_weeds && IS_SAME_HIVENUMBER(found_weeds, parent))
 		return FALSE
 
 	if(checked_turf.density)

code/modules/mob/living/carbon/xenomorph/ai/movement/lurking.dm

@@ -271,7 +271,7 @@
 		registered_turfs += cycled_open_turf
 
 		var/mob/living/carbon/human/possible_target = locate() in cycled_open_turf
-		if(possible_target && (!parent.current_target || get_dist(parent, possible_target) < get_dist(parent, parent.current_target)) && parent.check_mob_target(possible_target))
+		if(possible_target && (!parent.current_target || get_dist(parent, possible_target) < get_dist(parent, parent.current_target)) && possible_target.ai_can_target(parent))
 			parent.current_target = possible_target
 
 /datum/xeno_ai_movement/linger/lurking/proc/unregister_turf_signals()
@@ -286,7 +286,7 @@
 		return
 
 	var/mob/living/carbon/human/possible_target = entering_atom
-	if(!parent.current_target || get_dist(parent, possible_target) < get_dist(parent, parent.current_target) && parent.check_mob_target(possible_target))
+	if(!parent.current_target || get_dist(parent, possible_target) < get_dist(parent, parent.current_target) && possible_target.ai_can_target(parent))
 		parent.current_target = possible_target
 
 /datum/xeno_ai_movement/linger/lurking/proc/lurking_parent_moved(atom/movable/moving_atom, atom/oldloc, direction, Forced)