Making Items

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Along with blocks, items are a key component of most mods. While blocks make up the world around you, items are what let you change it.

Creating an Item

Basic Items

Basic items that need no special functionality (think sticks or sugar) don’t need custom classes. You can create an item by instantiate the Item class with an Item$Properties object. This Item$Properties object can be made calling the constructor and it can be customised by calling its methods. For instance:

Method	Description
group	Sets which ItemGroup (previously called creative tab) this item is under. Must be called if this item is meant to be shown on the creative menu. Vanilla groups can be found in the class ItemGroup.
maxDamage	Sets the maximum damage value for this item. If it is greater than 0, the properties damaged and damage are added to keep track of the current ItemStack damage.
maxStackSize	Sets the maximum stack size. You cannot have an item that is both damagable and stackable.
setNoRepair	Makes this item impossible to repair, even if it is damageable.
containerItem	Sets this item’s container item. For example, milk buckets give you back an empty bucket when they are crafted.
addToolType	Gives the item the ability of a ToolType (SHOVEL, AXE) at the specified harvest level (0 for Wood/Gold, 1 for Stone, 2 for Iron, 3 for Gold).

The above methods are chainable meaning they return this to facilitate calling them in series.

Advanced Items

Setting the properties of an item as above only works for simple items. If you want more complicated items, you should subclass Item and override its methods.

Registering an Item

Items must be registered to function.