Tool.java 文件源码

/**
 * Expends a use of the given toolType from the furnaceInventory. If the
 * furnaceInventory's smelting slot is empty, attempts to retrieve a new
 * tool from the given supplyInventory. Returns true if successful.
 * 
 * @param furnaceInventory The furnace from which the tool should be used.
 * @param toolType A predicate specifying what tool should be used.
 * @param supplyInventory Supply inventory to search in case the furnaceInventory is empty. May be null to not search.
 * @return True if a single use was expended for the given tool type.
 */
public static boolean useInFurnace(FurnaceInventory furnaceInventory, Predicate<ItemStack> toolType, Inventory supplyInventory) {
    ItemStack tool = furnaceInventory.getSmelting();
    if (tool == null || tool.getType() == Material.AIR) {
        // Try and find a tool in the chest.
        InventoryManager manager = new InventoryManager(supplyInventory);
        if (supplyInventory == null || !manager.find(toolType))
            return false;
        tool = manager.get();
        furnaceInventory.setSmelting(tool);
        manager.decrement();
        tool = furnaceInventory.getSmelting();
    } else if (!toolType.apply(tool))
        return false;

    // Use up durability.
    short newDurability = (short) (tool.getDurability() + 1);
    if (newDurability >= tool.getType().getMaxDurability()) {
        furnaceInventory.setSmelting(null);
    } else {
        tool.setDurability(newDurability);
    }
    return true;
}