A PartType can be seen as a group that several parts fit in, e.g. items

It might be required for you to import the package if you encounter any issues, so better be safe than sorry and add the import.
import mods.contenttweaker.PartType;

You can use the MaterialSystem to either retrieve an existing PartType object or create an entirely new one.
Check out below entry to learn how to create a new PartType.

Following types are pre-registered:

• item
• block
• ore
• fluid
• armor
• minecart

You can retrieve the following information from a PartType:

ZenMethod	Возвращаемый тип
ZenMethod getName()	Возвращаемый тип string

You can set the following information on a PartType:

ZenMethod	Parameter Type
ZenMethod setData(IPartDataPiece[] data);	Parameter Type IPartDataPiece[] data

If you, for whatever reason would ever need to register a new PartType, you will need to know two things:

• What name the new partType will have
• How MaterialParts created from Parts that are of this type will be registered

The first is simple, it's a string.
The second is a bit trickier, it's a function that takes a MaterialPart as input:

ZenScript
 Copy
#loader contenttweaker


import mods.contenttweaker.MaterialSystem;

val ourType = MaterialSystem.createPartType("cool_type", function(materialPart){

});

//Use the new type to create a Part
val ourPart = mods.contenttweaker.MaterialSystem.getPartBuilder().setName("cool_part").setPartType(ourType).build();

//Create a new Material and register the newly created part.
val ourMaterial = MaterialSystem.getMaterialBuilder().setName("Lawrencium").setColor(15426660).build();
ourMaterial.registerPart(ourPart);