Fading Sprites in Unity 5

This tutorial shows how to extend the class SpriteRenderer to support intuitive, painless fading transitions. Despite referring to sprites, this approach can be used to easily animate any property of a game object in Unity.

Introduction
Step 1. Extending the SpriteRenderer
Step 2. The Coroutine
Step 3. Invoking the Coroutine
Step 4. The Callback
Conclusion

The link for the script used in this tutorial is at the end of the post.

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Extension methods in C#

Following the heritage of C++, C# comes with a number of powerful features which can either be used to massively improve your code …or to make it completely unreadable. In this post we’ll discuss a technique to add new methods to already existing classes. Yes, even classes you don’t have access to such as Vector3, Rigidbody and even string. Let’s introduce extension methods with a practical example.

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