Merge pull request #4433 from Citadel-Station-13/upstream-merge-33614

[MIRROR] Decal rotation fix

code/datums/components/decal.dm

@@ -48,8 +48,7 @@
 	if(old_dir == new_dir)
 		return
 	remove()
-	var/rotation = SIMPLIFY_DEGREES(dir2angle(new_dir)-dir2angle(old_dir))
-	pic.dir = turn(pic.dir, rotation)
+	pic.dir = turn(pic.dir, dir2angle(old_dir) - dir2angle(new_dir))
 	apply()
 
 /datum/component/decal/proc/clean_react(strength)
@@ -57,4 +56,4 @@
 		qdel(src)
 
 /datum/component/decal/proc/examine(mob/user)
-	to_chat(user, description)
+	to_chat(user, description)