Porting updates related to material datums. (#12317)

* Porting updates related to material datums.

* art_type

* oh oh

code/datums/mood_events/generic_negative_events.dm

@@ -153,7 +153,13 @@
 	mood_change = -4
 	timeout = 2400
 
+/datum/mood_event/graverobbing
+	description ="<span class='boldwarning'>I just desecrated someone's grave... I can't believe I did that...</span>\n"
+	mood_change = -8
+	timeout = 3 MINUTES
+
 //These are unused so far but I want to remember them to use them later
+
 /datum/mood_event/cloned_corpse
 	description = "<span class='boldwarning'>I recently saw my own corpse...</span>\n"
 	mood_change = -6
@@ -162,6 +168,8 @@
 	description = "<span class='boldwarning'>HE'S CUTTING ME OPEN!!</span>\n"
 	mood_change = -8
 
+//End unused
+
 /datum/mood_event/sad_empath
 	description = "<span class='warning'>Someone seems upset...</span>\n"
 	mood_change = -2
@@ -199,6 +207,8 @@
 	mood_change = -2
 	timeout = 1 MINUTES
 
+//Cursed stuff end.
+
 /datum/mood_event/vampcandle
 	description = "<span class='umbra'>Something is making your mind feel... loose...</span>\n"
 	mood_change = -15