Big Items API

A mod that uses the library declares its item class as a big item by implementing the silly.homak.bigitems.interfaces.IBigItem interface. The interface includes an isScaled method, which returns false in places such as the hotbar where the item should keep its normal size. Developers can use the library to change how much space an item occupies in the inventory without writing custom screen code.

Alongside the item code, the library provides a group of utility methods that handle color values stored as integers. These methods can darken or lighten a color by a decimal factor between 0 and 1, and reduce its alpha or saturation using the same arguments. The library includes a crafting block called client side, which is part of the same code base.

Big Items API is open source under the MIT License, is published for Fabric and Quilt, and is built for 1.21.1 only. It runs on client and server, so both sides need the library for any mod that depends on it. The Fabric build is in the alpha channel with a1.2.3 as the latest file, while the Quilt build is also in the alpha channel with a1.1.