Adds a "params" parameter to attackby(), so it keeps track of pixel_x and pixel_y among other things

code/game/objects/items/weapons/storage/backpack.dm

@@ -13,7 +13,7 @@
 	max_w_class = 3
 	max_combined_w_class = 21
 
-/obj/item/weapon/storage/backpack/attackby(obj/item/weapon/W as obj, mob/user as mob)
+/obj/item/weapon/storage/backpack/attackby(obj/item/weapon/W as obj, mob/user as mob, params)
 	playsound(src.loc, "rustle", 50, 1, -5)
 	..()
 
@@ -33,7 +33,7 @@
 		..()
 		return
 
-	attackby(obj/item/weapon/W as obj, mob/user as mob)
+	attackby(obj/item/weapon/W as obj, mob/user as mob, params)
 		if(crit_fail)
 			user << "\red The Bluespace generator isn't working."
 			return