Java Code Examples for net.minecraftforge.event.AnvilUpdateEvent#setCanceled()

The following examples show how to use net.minecraftforge.event.AnvilUpdateEvent#setCanceled() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: AnvilUpdateEventHandler.java From enderutilities with GNU Lesser General Public License v3.0

6 votes

@SubscribeEvent
public void onAnvilUpdate(AnvilUpdateEvent event)
{
    ItemStack left = event.getLeft();
    ItemStack right = event.getRight();

    if (left.getItem() instanceof IAnvilRepairable)
    {
        IAnvilRepairable repairable = (IAnvilRepairable) left.getItem();

        // Advanced Ender Alloy
        if (repairable.isRepairItem(left, right))
        {
            this.fullyRepairItem(event, repairable, 1, 15);
        }
        else if (right.getItem() == Items.ENCHANTED_BOOK)
        {
            this.enchantItem(event, repairable, (ItemEnchantedBook) right.getItem());
        }
        else
        {
            // Cancel vanilla behaviour, otherwise it would allow repairing tools with another tool (and lose the modules)
            event.setCanceled(true);
        }
    }
}

Example 2

Source File: AnvilUpdateEventHandler.java From enderutilities with GNU Lesser General Public License v3.0

6 votes

private void fullyRepairItem(AnvilUpdateEvent event, IAnvilRepairable repairable, int materialCost, int xpCost)
{
    ItemStack repaired = event.getLeft().copy();

    if (repairable.repairItem(repaired, -1))
    {
        event.setMaterialCost(materialCost);
        event.setCost(xpCost);
        event.setOutput(repaired);

        this.updateItemName(event, repaired);
    }
    else
    {
        event.setCanceled(true);
    }
}

Example 3

Source File: AnvilUpdateEventHandler.java From enderutilities with GNU Lesser General Public License v3.0

4 votes

private void enchantItem(AnvilUpdateEvent event, IAnvilRepairable repairable, ItemEnchantedBook book)
{
    ItemStack toolStack = event.getLeft().copy();
    ItemStack bookStack = event.getRight().copy();
    NBTTagList bookEnchantmentList = ItemEnchantedBook.getEnchantments(bookStack);

    if (bookEnchantmentList.tagCount() <= 0 || toolStack.getItem().isBookEnchantable(toolStack, bookStack) == false)
    {
        return;
    }

    Map<Enchantment, Integer> oldEnchantments = EnchantmentHelper.getEnchantments(toolStack);
    Map<Enchantment, Integer> bookEnchantments = EnchantmentHelper.getEnchantments(bookStack);
    Iterator<Map.Entry<Enchantment, Integer>> iterBookEnchantments = bookEnchantments.entrySet().iterator();
    int cost = oldEnchantments.size() * 2;
    boolean levelIncreased = false;

    while (iterBookEnchantments.hasNext())
    {
        Map.Entry<Enchantment, Integer> enchantmentEntry = iterBookEnchantments.next();
        Enchantment enchBook = enchantmentEntry.getKey();

        if (enchBook != null)
        {
            int oldEnchLvl = oldEnchantments.containsKey(enchBook) ? oldEnchantments.get(enchBook).intValue() : 0;
            int bookEnchLvl = enchantmentEntry.getValue();
            int newLvl = bookEnchLvl == oldEnchLvl ? oldEnchLvl + 1 : Math.max(oldEnchLvl, bookEnchLvl);
            newLvl = Math.min(newLvl, enchBook.getMaxLevel());

            if (repairable.canApplyEnchantment(toolStack, enchBook) == false)
            {
                event.setCanceled(true);
                return;
            }

            if (newLvl > oldEnchLvl)
            {
                levelIncreased = true;
            }

            Iterator<Map.Entry<Enchantment, Integer>> iterOldEnchantments = oldEnchantments.entrySet().iterator();

            // Check that the new enchantment doesn't conflict with any of the existing enchantments
            while (iterOldEnchantments.hasNext())
            {
                Enchantment enchOld = iterOldEnchantments.next().getKey();

                if (enchOld.equals(enchBook) == false && enchOld.isCompatibleWith(enchBook) == false)
                {
                    event.setCanceled(true);
                    return;
                }
            }

            oldEnchantments.put(enchBook, newLvl);
            cost += newLvl * 2;
        }
    }

    // Check that at least some new enchantments would be added, or some of the existing levels increased
    if (levelIncreased == false)
    {
        event.setCanceled(true);
        return;
    }

    EnchantmentHelper.setEnchantments(oldEnchantments, toolStack);
    event.setOutput(toolStack);
    event.setCost(cost);
    this.updateItemName(event, toolStack);
    event.setCost(Math.min(event.getCost(), 39));
}