> For the complete documentation index, see [llms.txt](https://itemsadder.devs.beer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://itemsadder.devs.beer/chinese/kai-fa-zhe/java-api/old-api.md).

# API 实用工具

## API 实用工具

这些是一些静态实用工具，用于快速获取一些信息。

{% hint style="warning" %}
请注意，这些静态实用方法是为了懒人使用，你应该使用其他 API 类。
{% endhint %}

```java
// Check if itemsadder finished loading its items and if they are available
// Normally you should use ItemsAdderFirstLoadEvent instead.
// but sometimes you might also need to check this programmatically.
public static boolean areItemsLoaded()

//Checks if an item is a custom item made with ItemsAdder
public static boolean isCustomItem(ItemStack itemStack)
public static boolean isCustomItem(String customItemName)

//returns the ItemStack of a custom block in world
public static ItemStack getCustomBlock(Block block)

//check if an entity in world is a furniture
public static boolean isFurniture(Entity entity)

//check if an ItemStack is a specific custom item 
//(example: check if a pickaxe is 'amethyst_pickaxe')
public static boolean matchCustomItemName(ItemStack itemStack, String customItemName)
```

## 旧 API

{% hint style="warning" %}
这是一些旧的 API，但仍能使用，且可以正常工作。
{% endhint %}

```java
//Get an ItemsAdder custom item by its name in config
public static ItemStack getCustomItem(String nameInConfig)

//Spawns a block made with ItemsAdder specifying the itemstack 
//(obtain it with getCustomItem)
public static void placeCustomBlock(Location location, ItemStack customBlock)
public static void placeCustomBlock(Location location, ItemStack customBlock, boolean lightweight)

//get custom block loots
public static List<ItemStack> getCustomBlockLoot(Block block, ItemStack tool, boolean includeSelfBlock)

//Check if a block in the world is a custom block made with ItemsAdder
public static boolean isCustomBlock(Block block)

//plants custom seed like a normal player would do
public static void placeCustomCrop(Location location, ItemStack seed)

//check if block is custom planted crop with custom seed
public static boolean isCustomCrop(Block block)

//get custom seed of custom crop
public static String getCustomSeedNameFromCrop(Block block)

//get name of the item in config (ex: 'ruby_pickaxe')
public static String getCustomItemName(ItemStack itemStack)

//get name of config where the item is declared (ex: 'items/swords')
public static String getCustomItemFileName(ItemStack itemStack)

//gets usages remaining of this item (-999 if it has no usages specified = infinite)
public static int getCustomItemUsages(ItemStack itemStack)

//set custom item durability (also works with vanilla items and with
//custom items with default vanilla durability)
public static ItemStack setCustomItemDurability(ItemStack item, int durability)

//get custom durability
public static int getCustomItemDurability(ItemStack itemStack)

//get max custom durability 
public static int getCustomItemMaxDurability(ItemStack itemStack)
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://itemsadder.devs.beer/chinese/kai-fa-zhe/java-api/old-api.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.