In the first part of this series, I introduced easing equations and created a control which wrapped a lot of typical animation related functionality into a reusable control. In this post, we will create some extensions and a convenience class so that implementation of common animation tasks can be done with a single line of code.

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Unity has some pretty decent animation abilities built into the engine with which you can keyframe the position of entire hierarchies of objects. If you were animating a walk cycle or a bouncing ball, it works great. Other common use cases, like animating the move of a UI element when supporting multiple screen aspect ratios, are another issue. When you don’t know what the size of your screen will be, you can’t keyframe an animation for it. There are plenty of plugins on the asset store which solve this problem, but if you are like me and want to know how it all works, or you simply don’t want to spend money, read along and we will create our own solution. Continue reading →