fix

code/game/turfs/simulated/floor/plating.dm

@@ -124,7 +124,7 @@
 			ChangeTurf(/turf/open/floor/plating, flags = CHANGETURF_INHERIT_AIR)
 	else
 		playsound(src, 'sound/weapons/tap.ogg', 100, TRUE) //The attack sound is muffled by the foam itself
-		user.changeNext_move(CLICK_CD_MELEE)
+		user.DelayNextAction(CLICK_CD_MELEE)
 		user.do_attack_animation(src)
 		if(prob(I.force * 20 - 25))
 			user.visible_message("<span class='danger'>[user] smashes through [src]!</span>", \

code/game/turfs/simulated/walls.dm

@@ -137,14 +137,14 @@
 	return TRUE
 
 /turf/closed/wall/on_attack_hand(mob/user, act_intent = user.a_intent, unarmed_attack_flags)
-	if(!M.CheckActionCooldown(CLICK_CD_MELEE))
+	if(!user.CheckActionCooldown(CLICK_CD_MELEE))
 		return
 	to_chat(user, "<span class='notice'>You push the wall but nothing happens!</span>")
 	playsound(src, 'sound/weapons/genhit.ogg', 25, 1)
 	add_fingerprint(user)
 
 /turf/closed/wall/attackby(obj/item/W, mob/user, params)
-	if(!M.CheckActionCooldown(CLICK_CD_MELEE))
+	if(!user.CheckActionCooldown(CLICK_CD_MELEE))
 		return
 	if (!user.IsAdvancedToolUser())
 		to_chat(user, "<span class='warning'>You don't have the dexterity to do this!</span>")