Genericises rotate() on objects. (#8430)

code/game/objects/structures/window.dm

@@ -4,10 +4,10 @@
 	icon = 'icons/obj/structures.dmi'
 	density = 1
 	w_class = 3
-
 	layer = 3.2//Just above doors
 	anchored = 1.0
 	flags = ON_BORDER
+	obj_flags = OBJ_FLAG_ROTATABLE
 	var/maxhealth = 14.0
 	var/maximal_heat = T0C + 100 		// Maximal heat before this window begins taking damage from fire
 	var/damage_per_fire_tick = 2.0 		// Amount of damage per fire tick. Regular windows are not fireproof so they might as well break quickly.
@@ -300,44 +300,6 @@
 	take_damage(damage)
 	return
 
-
-/obj/structure/window/verb/rotate()
-	set name = "Rotate Window Counter-Clockwise"
-	set category = "Object"
-	set src in oview(1)
-
-	if(usr.incapacitated())
-		return 0
-
-	if(anchored)
-		to_chat(usr, "It is fastened to the floor therefore you can't rotate it!")
-		return 0
-
-	update_nearby_tiles(need_rebuild=1) //Compel updates before
-	set_dir(turn(dir, 90))
-	updateSilicate()
-	update_nearby_tiles(need_rebuild=1)
-	return
-
-
-/obj/structure/window/verb/revrotate()
-	set name = "Rotate Window Clockwise"
-	set category = "Object"
-	set src in oview(1)
-
-	if(usr.incapacitated())
-		return 0
-
-	if(anchored)
-		to_chat(usr, "It is fastened to the floor therefore you can't rotate it!")
-		return 0
-
-	update_nearby_tiles(need_rebuild=1) //Compel updates before
-	set_dir(turn(dir, 270))
-	updateSilicate()
-	update_nearby_tiles(need_rebuild=1)
-	return
-
 /obj/structure/window/Initialize(mapload, start_dir = null, constructed=0)
 	. = ..()