java - Bukkit - 使用自定义配方添加自定义项目

Question

我想创建新项目。我称之为生命 Crystal 。我还为这个新项目创建了新配方。我的问题是，当我尝试制作该元素时，我制作了普通元素，没有新的显示名称和结界。我的代码如下所示。

 // Life Crystal
        ItemStack lifecrystal = new ItemStack(Material.DIAMOND);
        NamespacedKey lifecrystalKey = new NamespacedKey((Plugin) this, "lifecrystal");
        ShapedRecipe lifecrystalRecipe = new ShapedRecipe(lifecrystalKey, lifecrystal);

        ItemMeta lifecrystalLabel = lifecrystal.getItemMeta();
        lifecrystalLabel.setDisplayName(ChatColor.GOLD + "Life Crystal");
        lifecrystalLabel.addEnchant(Enchantment.BINDING_CURSE, 1, false);
        lifecrystal.setItemMeta(lifecrystalLabel);

        lifecrystalRecipe.shape(" E ", "LAL", "DRD");
        lifecrystalRecipe.setIngredient('E', Material.EMERALD);
        lifecrystalRecipe.setIngredient('L', Material.LAPIS_LAZULI);
        lifecrystalRecipe.setIngredient('A', Material.GOLDEN_APPLE);
        lifecrystalRecipe.setIngredient('R', Material.GOLD_INGOT);
        lifecrystalRecipe.setIngredient('D', Material.DIAMOND);
        Bukkit.addRecipe(lifecrystalRecipe);

编辑:我的方法 .setDisplayName 显示错误:(方法调用设置显示名称可能会产生null)

Answer 1

您应该首先使用所有自定义元数据创建 ItemStack，然后创建配方。

    ItemStack lifecrystal = new ItemStack(Material.DIAMOND);
    ItemMeta lifecrystalLabel = lifecrystal.getItemMeta();
    lifecrystalLabel.setDisplayName(ChatColor.GOLD + "Life Crystal");
    lifecrystalLabel.addEnchant(Enchantment.BINDING_CURSE, 1, false);
    lifecrystal.setItemMeta(lifecrystalLabel);

    NamespacedKey lifecrystalKey = new NamespacedKey((Plugin) this, "lifecrystal");
    ShapedRecipe lifecrystalRecipe = new ShapedRecipe(lifecrystalKey, lifecrystal);

    lifecrystalRecipe.shape(" E ", "LAL", "DRD");
    lifecrystalRecipe.setIngredient('E', Material.EMERALD);
    lifecrystalRecipe.setIngredient('L', Material.LAPIS_LAZULI);
    lifecrystalRecipe.setIngredient('A', Material.GOLDEN_APPLE);
    lifecrystalRecipe.setIngredient('R', Material.GOLD_INGOT);
    lifecrystalRecipe.setIngredient('D', Material.DIAMOND);
    Bukkit.addRecipe(lifecrystalRecipe);