Items are the pieces of content that appear in your inventory. They can perform actions when you click, act as food, or spawn entities. The following documentation will give you a rundown of the entire Item class and everything related to it. For a tutorial you can follow along, visit Practical Example: Adding an Item.

Item（物品类）的构造方法（constructor）需要一个Item.Settings（物品设置类）的实例。该建造者类（builder class）定义物品的诸多行为，例如堆叠数量、耐久度、是否可食用、等等。以下是所有可用的建造者方法：

public Item.Settings food(FoodComponent foodComponent)

foodComponent - instance of'FoodComponent. When set, the Item will be edible based on the settings provided by the FoodComponent builder. For an in-depth explanation of the available options, view the FoodComponent Overview page.

public Item.Settings maxCount(int maxCount)

maxCount - the maximum count of an ItemStack for the given Item. If maxDamage() has already been called, a RuntimeException is thrown, as an Item cannot have both damage and count. Keeping the max count at or below 64 is recommended, as any value above that can lead to various issues.

public Item.Settings maxDamageIfAbsent(int maxDamage)

maxDamage - max durability of the given Item when in ItemStack form.

If maxDamage() has not been called yet, the max durability of the Item is set to the value passed in. This is used for cases such as tools and armor, where the Item's durability is only set to the ToolMaterial's durability if it has not been set yet.

public Item.Settings maxDamage(int maxDamage)

maxDamage - max durability of the given Item when in ItemStack form.

public Item.Settings recipeRemainder(Item recipeRemainder)

recipeRemainder - Item to return as a remainder when the base Item is used in a crafting recipe.

When a recipe remainder is set on an Item, any recipe using that Item will return the remainder on craft. This is used for buckets (Water, Lava, Milk) and bottles (Dragon Breath, Honey) returning their respective empty items when used in recipes.

public Item.Settings group(ItemGroup group)

group - ItemGroup to add Item in.

Each ItemGroup appears as a tab in the creative inventory. Adding an Item to this group will add it to the tab. The order of the group is based on registry order. For more information on creating a group, see the ItemGroups page.

public Item.Settings rarity(Rarity rarity)

rarity - Rarity of the given Item.

If Rarity is set, the given Item will have a custom name color. An Item's Rarity defaults to common.