Advance
Physics-based animations for iOS, tvOS, and macOS
...Specifically, animators allow for any type of animation or simulation to be performed for a single value. Simulated animations use a simulation function to power a physics-based transition. Simulation functions are types conforming to the SimulationFunction protocol. Values conforming to the VectorConvertible protocol can be animated by Advance. Conforming types can be converted to and from a Vector implementation.