Adds Shadow demons (#19732)

* reshuffle

* shared base type

* moves this to the base type

* the monster

* event

* FUCK

* better sprites

* refactors bloodcrawl, more nice sprites

* review stuff

* Apply suggestions from code review

Co-authored-by: Sirryan2002 <80364400+Sirryan2002@users.noreply.github.com>

* heart of darkness

* pre TM tweaks

* ARGH

* hopefully fixes double hits

* tweaks

* derp

* tweaks

* TEMP RUNTIME REMOVE LATER

* fixes

* runtime fixes

* cig runtime fix

* review + another runtime fix

* re adds sprite

* removes runtime

* oop I forgor

* DRUNK CODING

* SPRITES

Co-authored-by: Sirryan2002 <80364400+Sirryan2002@users.noreply.github.com>

code/modules/clothing/head/hardhat.dm

@@ -44,10 +44,10 @@
 /obj/item/clothing/head/hardhat/proc/turn_off(mob/user)
 	set_light(0)
 
-/obj/item/clothing/head/hardhat/extinguish_light(mob/living/user)
+/obj/item/clothing/head/hardhat/extinguish_light(force = FALSE)
 	if(on)
 		on = FALSE
-		turn_off(user)
+		turn_off()
 		update_icon(UPDATE_ICON_STATE)
 		visible_message("<span class='danger'>[src]'s light fades and turns off.</span>")
 

code/modules/clothing/spacesuits/hardsuit.dm

@@ -68,7 +68,7 @@
 		var/datum/action/A = X
 		A.UpdateButtonIcon()
 
-/obj/item/clothing/head/helmet/space/hardsuit/extinguish_light()
+/obj/item/clothing/head/helmet/space/hardsuit/extinguish_light(force = FALSE)
 	if(on)
 		toggle_light()
 		visible_message("<span class='danger'>[src]'s light fades and turns off.</span>")

code/modules/clothing/spacesuits/plasmamen.dm

@@ -82,7 +82,7 @@
 
 	set_light(brightness_on)
 
-/obj/item/clothing/head/helmet/space/plasmaman/extinguish_light()
+/obj/item/clothing/head/helmet/space/plasmaman/extinguish_light(force = FALSE)
 	if(on)
 		toggle_light()