public void onUpdate() {
	if (this.isToggled()) {
		if (mc.player.getHeldItemOffhand().getItem() == Items.TOTEM_OF_UNDYING) return;
		
		/*Inventory*/
		for (int i = 9; i < 44; i++) {
			if (mc.player.inventory.getStackInSlot(i).getItem() == Items.TOTEM_OF_UNDYING) {
				mc.playerController.windowClick(0, i, 0, ClickType.PICKUP, mc.player);
				mc.playerController.windowClick(0, 45, 0, ClickType.PICKUP, mc.player);
				return;
			}
		}
		
		/*Hotbar*/
		for (int i = 0; i < 8; i++) {
			if (mc.player.inventory.getStackInSlot(i).getItem() == Items.TOTEM_OF_UNDYING) {
				//int oldSlot = mc.player.inventory.currentItem;
				mc.player.inventory.currentItem = i;
				mc.player.connection.sendPacket(new CPlayerDiggingPacket(
						Action.SWAP_HELD_ITEMS, BlockPos.ZERO, Direction.DOWN));
				//mc.player.inventory.currentItem = oldSlot;
				return;
			}
		}
	}
}
 

@Override
public ItemStack slotClick(ContainerExtended container, PlayerEntity player, int button, ClickType clickType) {
    ItemStack held = player.inventory.getItemStack();
    boolean shift = clickType == ClickType.QUICK_MOVE;
    slotClick(held, button, shift);
    return ItemStack.EMPTY;
}
 

@Override
protected void handleMouseClick(Slot slotIn, int slotId, int mouseButton, ClickType type)
{
    super.handleMouseClick(slotIn, slotId, mouseButton, type);
    this.recipeGui.slotClicked(slotIn);
}
 

public abstract ItemStack slotClick(ContainerExtended container, PlayerEntity player, int button, ClickType clickType);