Animate UI elements with a single line? Yeah, it's that easy

Cocoa users may appreciate NSAnimation - it allows quick animation of UI elements. This AnimationKit allows the same thing, even simpler than NSAnimation. Control frame rates and run multiple simultaneous time-based animations. Move and resize nearly any UI element - any RectControl or Window.

AnimationKit adds a Rect structure to easily describe the location and size of UI elements, and adds methods to RectControl and Window to very quickly make animations happen.