Restrict 2D object dragging to the screen in Unity
Nearly all 2D games require you to click or touch to drag objects around the scene. E.g., in a jigsaw game. Here we extend the implementation to optionally restrict the objects to the screen.
We provide the method to stop dragging objects off the screen for both implementations from the previous video:
• Drag 2D objects in Unity - using the ...
There is a DragAll script for use with a drag manager which uses layers to determine which objects are draggable, and a Drag script which can simply be added to each object you want to be able to be dragged. For both of these we add the new code to create a DragAllRestricted and DragRestricted scripts.
Code is available on GitHub: https://github.com/Firnox/Drag2D
Contents:
0:00 Introduction
1:05 Updating the DragAll script
4:40 Updating the Drag script
