Adds the Frost Spider. Starts support for more complicated spiderlings.

code/game/objects/effects/spiders.dm

@@ -125,6 +125,7 @@
 	var/amount_grown = -1
 	var/obj/machinery/atmospherics/unary/vent_pump/entry_vent
 	var/travelling_in_vent = 0
+	var/list/grow_as = list(/mob/living/simple_animal/hostile/giant_spider, /mob/living/simple_animal/hostile/giant_spider/nurse, /mob/living/simple_animal/hostile/giant_spider/hunter)
 
 /obj/effect/spider/spiderling/New(var/location, var/atom/parent)
 	pixel_x = rand(6,-6)
@@ -218,7 +219,7 @@
 					break
 
 		if(amount_grown >= 100)
-			var/spawn_type = pick(typesof(/mob/living/simple_animal/hostile/giant_spider))
+			var/spawn_type = pick(grow_as)
 			new spawn_type(src.loc, src)
 			qdel(src)
 	else if(isorgan(loc))

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

@@ -78,6 +78,22 @@
 
 	poison_per_bite = 5
 
+/mob/living/simple_animal/hostile/giant_spider/frost
+	desc = "Icy and blue, it makes you shudder to look at it. This one has brilliant blue eyes."
+	icon_state = "frost"
+	icon_living = "frost"
+	icon_dead = "frost_dead"
+
+	maxHealth = 175
+	health = 175
+
+	melee_damage_lower = 15
+	melee_damage_upper = 20
+
+	poison_per_bite = 5
+	poison_type = "cryotoxin"
+
+
 /mob/living/simple_animal/hostile/giant_spider/New(var/location, var/atom/parent)
 	get_light_and_color(parent)
 	..()
@@ -234,6 +250,7 @@
 		busy = 0
 		stop_automated_movement = 0
 
+
 #undef SPINNING_WEB
 #undef LAYING_EGGS
 #undef MOVING_TO_TARGET