ExprEnchBookWithEnch.java 文件源码

@Override
@Nullable
protected ItemStack[] get(Event event) {
    ItemStack input = book.getSingle(event);
    EnchantmentStorageMeta meta = (EnchantmentStorageMeta) input.getItemMeta();
    final EnchantmentType[] enchs = enchants.getArray(event);
    for (final EnchantmentType ench : enchs) {
        if (meta.hasStoredEnchant(ench.getType())) {
            meta.removeEnchant(ench.getType());
        }
        meta.addStoredEnchant(ench.getType(), ench.getLevel(), true);
    }
    ItemStack result = book.getSingle(event);
    result.setItemMeta(meta);
    return new ItemStack[]{result};
}