swapicons Unity

C# Unity script to fade out a sprite, swap it with another and fade in

Add this script to any game object with a SpriteRenderer attached whose icon you want to swap based on a Trigger.

Requirements

• game object must have a SpriteRenderer
• must have a collider2D with Is trigger turned on
• script will expose an Alt Icon property where you need to drag a sprite to it in the editor
• your player character needs to have the "Player" tag attached to it (line 44 in the script relies on this)

Notes

This was created for 2D objects but can be easily adapted to 3D by simply replacing all 2D occurrences with 3D :)

Motivation

I couldn't find a good way to create a fade in, swap and fade out example anywhere. So after much fussing around I created this solution which seems to work very well.

Caveats

• don't call this inside an Update() method!
• it will cause issues
• Coroutines should not be called inside methods that themselves are called every frame unless you know exactly what you're doing
• you shouldn't need to call this anywhere really. It's written so it works out of the box as soon as you player triggers the 2D collider