Improvements to simple animal make_baby and Runtime

Runtime now only stores the children she actually made, instead of
being the mother of every cat in the mob list like some kind of god cat

make_baby no longer spawns off for 400 seconds to set a flag

code/modules/mob/living/simple_animal/friendly/cat.dm

@@ -80,7 +80,8 @@
 	icon_dead = "cat_dead"
 	gender = FEMALE
 	gold_core_spawnable = 0
-	var/list/family = list()
+	var/list/family = list()//var restored from savefile, has count of each child type
+	var/list/children = list()//Actual mob instances of children
 	var/cats_deployed = 0
 	var/memory_saved = 0
 
@@ -99,6 +100,12 @@
 		Write_Memory()
 	..()
 
+/mob/living/simple_animal/pet/cat/Runtime/make_babies()
+	var/mob/baby = ..()
+	if(baby)
+		children += baby
+		return baby
+
 /mob/living/simple_animal/pet/cat/Runtime/death()
 	if(!memory_saved)
 		Write_Memory(1)
@@ -115,7 +122,7 @@
 	var/savefile/S = new /savefile("data/npc_saves/Runtime.sav")
 	family = list()
 	if(!dead)
-		for(var/mob/living/simple_animal/pet/cat/kitten/C in mob_list)
+		for(var/mob/living/simple_animal/pet/cat/kitten/C in children)
 			if(istype(C,type) || C.stat || !C.z || !C.butcher_results) //That last one is a work around for hologram cats
 				continue
 			if(C.type in family)

code/modules/mob/living/simple_animal/hostile/mining_mobs.dm

@@ -955,11 +955,11 @@
 		make_babies()
 
 /mob/living/simple_animal/hostile/asteroid/gutlunch/guthen/make_babies()
-	if(..())
+	. = ..()
+	if(.)
 		udder.reagents.clear_reagents()
 		regenerate_icons()
 
-
 //Nests
 /mob/living/simple_animal/hostile/spawner/lavaland
 	name = "necropolis tendril"

code/modules/mob/living/simple_animal/simple_animal.dm

@@ -57,7 +57,7 @@
 
 	//Hot simple_animal baby making vars
 	var/list/childtype = null
-	var/scan_ready = 1
+	var/next_scan_time = 0
 	var/animal_species //Sorry, no spider+corgi buttbabies.
 
 	//simple_animal access
@@ -353,11 +353,9 @@
 	..()
 
 /mob/living/simple_animal/proc/make_babies() // <3 <3 <3
-	if(gender != FEMALE || stat || !scan_ready || !childtype || !animal_species || ticker.current_state != GAME_STATE_PLAYING)
-		return 0
-	scan_ready = 0
-	spawn(400)
-		scan_ready = 1
+	if(gender != FEMALE || stat || next_scan_time > world.time || !childtype || !animal_species || ticker.current_state != GAME_STATE_PLAYING)
+		return
+	next_scan_time = world.time + 400
 	var/alone = 1
 	var/mob/living/simple_animal/partner
 	var/children = 0
@@ -373,13 +371,13 @@
 				partner = M
 
 		else if(isliving(M) && !faction_check(M)) //shyness check. we're not shy in front of things that share a faction with us.
-			alone = 0
-			continue
+			return //we never mate when not alone, so just abort early
+
 	if(alone && partner && children < 3)
 		var/childspawn = pickweight(childtype)
-		new childspawn(loc)
-		return 1
-	return 0
+		var/turf/target = get_turf(loc)
+		if(target)
+			return new childspawn(target)
 
 /mob/living/simple_animal/canUseTopic(atom/movable/M, be_close = 0, no_dextery = 0)
 	if(incapacitated())