View the entire tutorial on What Up Games.
There are many different styles of inventory systems and in this tutorial series you will learn how to create a grid-based system that requires the player to sort items by size to carry as many as possible. This part of the series builds on the design from part 1 by instantiating a visual to represent items held and adding the ability to organize them. On the surface, this logic seems simple – just drag/drop. However, scenarios that prevent an item from being placed make the logic more complicated.
This tutorial is a continuation of the grid inventory system that was started in Part 1, Design the Grid Based Inventory System.
This tutorial will cover the basics of interacting with UI Toolkit from C# and populating it with data from a ScriptableObject. By the end, you will know how to:
- Define and create scriptable object assets to represent items in an inventory
- Create a Visual Element and set various properties via C#
- Hook up mouse/pointer click and move events to implement drag/drop behavior
- Check for overlapping Visual Elements
- Set a Visual Elements position at runtime based on the mouse
- You should have Unity 2021年1月12日f1 or later to follow along with this tutorial.
- This tutorial assumes you have basic knowledge of Unity and C#.
This tutorial will work with earlier versions of Unity but has a higher chance of having UI Toolkit related bugs and may have different installation requirements. Check out the UI Builder release notes for more information on compatible versions.