Add hyenas, and a custom pack_mob ai type for them

The AI type will be further iterated on later.
Hyena icons patiently awaiting sprite art. <3

code/modules/ai/aI_holder_subtypes/simple_mob_ai_ch.dm

@@ -0,0 +1,12 @@
+/datum/ai_holder/simple_mob/melee/pack_mob
+    cooperative = TRUE
+    call_distance = 28 // pack mobs should be able to communicate quite a ways - we can assume by howls/etc
+    can_flee = TRUE
+    flee_when_dying = TRUE // animals know to run when wounded/overmatched
+    flee_when_outmatched = TRUE // animals know to run when wounded/overmatched
+
+/datum/ai_holder/simple_mob/melee/pack_mob/post_melee_attack(atom/A)
+	if(holder.Adjacent(A))
+		holder.IMove(get_step(holder, pick(alldirs)))
+		holder.face_atom(A)
+

code/modules/mob/living/simple_mob/subtypes/animal/hyena/hyena.dm

@@ -0,0 +1,156 @@
+/*
+
+Hyenas are any feliform carnivoran mammals of the family Hyaenidae. With only four extant species (in three genera), it is the fifth-smallest biological family in the Carnivora, and one of the smallest in the class Mammalia.
+They're also cool, and Rykka/Nyria wrote this uwu
+
+*/
+
+// Cataloguer data here
+/datum/category_item/catalogue/fauna/hyena
+	name = "Desert Fauna - Hyena"
+	desc = "Classification: Crocuta crocuta \
+	<br><br>\
+	It is primarily a hunter but may also scavenge, with the capacity to eat and digest skin, bone and other animal waste. \
+	The spotted hyena displays greater plasticity in its hunting and foraging behaviour than other similar carnivores; \
+    it hunts alone, in small parties of 2–5 individuals or in large groups. \
+    During a hunt, spotted hyenas often run through ungulate herds in order to select an individual to attack. \ 
+    Once selected, their prey is chased over a long distance, often several kilometres, at speeds of up to 60 km/h."
+	value = CATALOGUER_REWARD_MEDIUM
+
+// Start Defining the mob here
+/mob/living/simple_mob/animal/hyena 
+    name = "Hyena"
+    desc = "Yeen! Its fur is a dusty yellow-brown color with black spots, and it has rounded ears... and SHARP TEETH! You inexplicably want to pet it, though."
+    tt_desc = "Crocuta crocuta"
+    catalogue_data = list(/datum/category_item/catalogue/fauna/hyena)
+
+    icon_state = "hyena"
+    icon_living = "hyena"
+    icon_dead = "hyena_dead"
+    has_eye_glow = FALSE // Change this to true for fun spooky eye glow in darkness. <3
+    minbodytemp = 175 // Make hyenas able to survive freezing cold. Someone criticize me later uwu
+    faction = 'yeen' // gon fight any other mobs. grr
+    maxHealth = 125 // not as tanky as a spider for obvious reasons, but not a pushover.
+    health = 125
+    pass_flags = PASSTABLE
+    movement_cooldown = 0.25 // Yeen go fast
+    // movement_sound = null - TODO: find good animal pawb sounds
+    poison_resist = 0.1
+
+    see_in_dark = 25 // Hyenas are nocturnal, they should be able to see anything in the dark. <3
+
+    response_help = "rubrubs"
+    response_disarm = "boops aside"
+    response_harm = "smacks"
+
+    melee_damage_lower = 12 // hyenas go for the legs/lower bits
+    melee_damage_upper = 8 // not as high damage, but faster bites. nomnomnom <3
+    attack_sharp = 1
+    attack_edge = 1
+    base_attack_cooldown = 0.5 SECOND
+    attack_text = list("bit", "nipped", "chomped", "clawed", "scratched", "lewded")
+    attack_sound = 'sound/weapons/bite.ogg' // placeholder till I find a better bite
+
+    ai_holder_type = /datum/ai_holder/simple_mob/melee/pack_mob // Define here what type of enemy hyena is.
+
+    heat_damage_per_tick = 20
+    cold_damage_per_tick = 20
+
+    speak_emote = list("yaps")
+
+    says_list_type = datum/say_list/hyena
+
+// Silly stuff. HATS! Give your yeen a hat today <3
+/mob/living/simple_mob/animal/hyena/verb/remove_hat()
+	set name = "Remove Hat"
+	set desc = "Remove the yeen's hat. You monster. ;~;"
+	set category = "Abilities"
+	set src in view(1)
+
+	drop_hat(usr)
+
+/mob/living/simple_mob/animal/hyena/proc/drop_hat(var/mob/user)
+	if(hat)
+		hat.forceMove(get_turf(user))
+		hat = null
+		update_icon()
+		if(user == src)
+			to_chat(user, "<span class='notice'>You removed your hat.</span>")
+			return
+		to_chat(user, "<span class='warning'>You removed \the [src]'s hat. You monster. ;~;</span>")
+	else
+		if(user == src)
+			to_chat(user, "<span class='notice'>You are not wearing a hat!</span>")
+			return
+		to_chat(user, "<span class='notice'>\The [src] is not wearing a hat!</span>")
+
+/mob/living/simple_mob/animal/hyena/verb/give_hat()
+	set name = "Give Hat"
+	set desc = "Give the yeen a hat. You wonderful bean. <3"
+	set category = "Abilities"
+	set src in view(1)
+
+	take_hat(usr)
+
+/mob/living/simple_mob/animal/hyena/proc/take_hat(var/mob/user)
+	if(hat)
+		if(user == src)
+			to_chat(user, "<span class='notice'>You already have a hat!</span>")
+			return
+		to_chat(user, "<span class='notice'>\The [src] already has a hat!</span>")
+	else
+		if(user == src)
+			if(istype(get_active_hand(), /obj/item/clothing/head))
+				hat = get_active_hand()
+				drop_from_inventory(hat, src)
+				hat.forceMove(src)
+				to_chat(user, "<span class='notice'>You put on the hat.</span>")
+				update_icon()
+			return
+		else if(ishuman(user))
+			var/mob/living/carbon/human/H = user
+
+			if(istype(H.get_active_hand(), /obj/item/clothing/head) && !get_active_hand())
+				var/obj/item/clothing/head/newhat = H.get_active_hand()
+				H.drop_from_inventory(newhat, get_turf(src))
+				if(!stat)
+					intent = I_HELP
+					newhat.attack_hand(src)
+			else if(src.get_active_hand())
+				to_chat(user, "<span class='notice'>\The [src] seems busy with \the [get_active_hand()] already!</span>")
+
+			else
+				to_chat(user, "<span class='warning'>You aren't holding a hat...</span>")
+
+/datum/say_list/hyena
+	speak = list("Huff.", "|R|rr?", "Yap.", "Grr.", "Yip.", "SCREM!")
+	emote_see = list("sniffs", "looks around", "grooms itself", "rolls around")
+	emote_hear = list("yawns", "cackles", "playfully yaps")
+
+/mob/living/simple_mob/animal/hyena/Destroy()
+	if(hat)
+		drop_hat(src) // ;w;
+	..()
+
+/mob/living/simple_mob/animal/hyena/update_icon()
+	overlays.Cut()
+	..()
+	if(hat)
+		var/hat_state = hat.item_state ? hat.item_state : hat.icon_state
+		var/image/I = image('icons/mob/head.dmi', src, hat_state)
+		I.pixel_y = -15 // Hyenas are smol! - TODO: Test this.
+		I.appearance_flags = RESET_COLOR
+		add_overlay(I)
+
+// Start Defining the mob here
+/mob/living/simple_mob/animal/hyena/Nyria 
+    name = "Nyria"
+    desc = "Yeen! This one seems familiar. Its fur is a dark, dusty reddish-brown color with black spots, and it has rounded ears... and SHARP TEETH! You inexplicably want to pet it, though."
+    tt_desc = "Crocuta crocuta"
+
+    icon_state = "hyena_nyria"
+    icon_living = "hyena_nyria"
+    icon_dead = "hyena_nyria_dead"
+
+    maxHealth = 225 // tuff yeen. <3
+    health = 225 // tuff yeen. <3

vorestation.dme

@@ -1594,6 +1594,7 @@
 #include "code\modules\ai\interfaces.dm"
 #include "code\modules\ai\say_list.dm"
 #include "code\modules\ai\aI_holder_subtypes\simple_mob_ai.dm"
+#include "code\modules\ai\aI_holder_subtypes\simple_mob_ai_ch.dm"
 #include "code\modules\ai\aI_holder_subtypes\simple_mob_ai_vr.dm"
 #include "code\modules\ai\aI_holder_subtypes\slime_xenobio_ai.dm"
 #include "code\modules\ai\aI_holder_subtypes\slime_xenobio_ai_vr.dm"
@@ -2574,6 +2575,7 @@
 #include "code\modules\mob\living\simple_mob\subtypes\animal\giant_spider\thermic.dm"
 #include "code\modules\mob\living\simple_mob\subtypes\animal\giant_spider\tunneler.dm"
 #include "code\modules\mob\living\simple_mob\subtypes\animal\giant_spider\webslinger.dm"
+#include "code\modules\mob\living\simple_mob\subtypes\animal\hyena\hyena.dm"
 #include "code\modules\mob\living\simple_mob\subtypes\animal\passive\crab.dm"
 #include "code\modules\mob\living\simple_mob\subtypes\animal\passive\fish.dm"
 #include "code\modules\mob\living\simple_mob\subtypes\animal\passive\fish_vr.dm"