InventoryListener.java 文件源码

private Block processInventoryOpenOrCloseEvent(Inventory inventory) {
    if (!(inventory instanceof FurnaceInventory)) {
        return null;
    }

    Furnace furnace = (Furnace) inventory.getHolder();

    if (furnace == null || furnace.getBurnTime() != 0) {
        return null;
    }

    return furnace.getBlock();
}