Adds a craftable ghost costume (#38809)

* Adds ghost sheet

* Update miscellaneous.dm

* Update miscellaneous.dm

* So uh

I didn't consider what it would look like when you hold items in your hand while wearing this. So, extremely weak justification!

* Add UNDER_HEAD_LAYER

* Update miscellaneous.dm

code/__DEFINES/misc.dm

@@ -81,6 +81,7 @@ Will print: "/mob/living/carbon/human/death" (you can optionally embed it in a s
 //Because I *KNOW* somebody will think layer+1 means "above"
 //IT DOESN'T OK, IT MEANS "UNDER"
 #define UNDER_SUIT_LAYER			(SUIT_LAYER+1)
+#define UNDER_HEAD_LAYER			(HEAD_LAYER+1)
 
 //AND -1 MEANS "ABOVE", OK?, OK!?!
 #define ABOVE_SHOES_LAYER			(SHOES_LAYER-1)
@@ -450,4 +451,4 @@ GLOBAL_LIST_INIT(pda_styles, list(MONO, VT, ORBITRON, SHARE))
 
 
 #define STANDARD_GRAVITY 1 //Anything above this is high gravity, anything below no grav
-#define GRAVITY_DAMAGE_TRESHOLD 3 //Starting with this value gravity will start to damage mobs
+#define GRAVITY_DAMAGE_TRESHOLD 3 //Starting with this value gravity will start to damage mobs

code/modules/clothing/suits/miscellaneous.dm

@@ -594,3 +594,12 @@
 	icon = 'icons/obj/clothing/clockwork_garb.dmi'
 	icon_state = "clockwork_cuirass_old"
 	armor = list("melee" = 5, "bullet" = 0, "laser" = -5, "energy" = 0, "bomb" = 10, "bio" = 0, "rad" = 0, "fire" = 20, "acid" = 20)
+
+/obj/item/clothing/suit/ghost_sheet
+	name = "ghost sheet"
+	desc = "The hands float by themselves, so it's extra spooky."
+	icon_state = "ghost_sheet"
+	item_state = "ghost_sheet_item"
+	w_class = WEIGHT_CLASS_TINY
+	flags_inv = HIDEGLOVES|HIDEMASK|HIDEEARS|HIDEFACE|HIDEHAIR|HIDEFACIALHAIR
+	alternate_worn_layer = UNDER_HEAD_LAYER

code/modules/crafting/recipes.dm

@@ -669,3 +669,11 @@
 	tools = list(TOOL_SCREWDRIVER, TOOL_WIRECUTTER)
 	reqs = list(/obj/item/clothing/glasses/sunglasses/reagent = 1)
 	category = CAT_CLOTHING
+
+/datum/crafting_recipe/ghostsheet
+	name = "Ghost Sheet"
+	result = /obj/item/clothing/suit/ghost_sheet
+	time = 5
+	tools = list(TOOL_WIRECUTTER)
+	reqs = list(/obj/item/bedsheet = 1)
+	category = CAT_CLOTHING