Adds frogs (#20775)

code/modules/mob/living/simple_animal/hostile/retaliate/frog.dm

@@ -0,0 +1,35 @@
+/mob/living/simple_animal/hostile/retaliate/frog
+	name = "frog"
+	desc = "It seems a little sad."
+	icon_state = "frog"
+	icon_living = "frog"
+	icon_dead = "frog_dead"
+	speak = list("ribbits","croaks")
+	emote_see = list("hops in a circle.", "shakes.")
+	speak_chance = 1
+	turns_per_move = 5
+	maxHealth = 15
+	health = 15
+	melee_damage_lower = 5
+	melee_damage_upper = 5
+	attacktext = "bites"
+	response_help  = "pets"
+	response_disarm = "pokes"
+	response_harm   = "splats"
+	density = 0
+	ventcrawler = 2
+	faction = list("hostile")
+	attack_sound = 'sound/effects/Reee.ogg'
+	pass_flags = PASSTABLE | PASSGRILLE | PASSMOB
+	mob_size = MOB_SIZE_TINY
+	gold_core_spawnable = 1
+
+/mob/living/simple_animal/frog/New()
+	..()
+	if(prob(1))
+		name = "rare frog"
+		desc = "It seems a little smug."
+
+/mob/living/simple_animal/hostile/retaliate/frog/Crossed()
+	if(!stat)
+		playsound(src, 'sound/effects/Huuu.ogg', 100, 1)