@Override public void renderRedstoneInterfaceStuff(float partialTicks) { EntityPlayerSP player = Minecraft.getMinecraft().thePlayer; ItemStack itemStack = player.getCurrentEquippedItem(); if (itemStack != null) { Item item = itemStack.getItem(); if (item == ModItems.redstoneTool) { drawInterfaceLines(player, partialTicks); drawLinkingCube(itemStack, player, partialTicks); } } }