SpriteKitUpdateLoop Simon • nev-clock 25 October 2018 The SpriteKit update loop. Each frame, update is called, then the SKScene evaluates actions, then didEvaluateActions is called, then the physics is simulated, then didSimulatePhysics is called, then constraints are applied, then didApplyConstraints is called, finally didFinishUpdates is called and the scene is rendered. Published 25th October 2018 at 1360 × 869 in A Physics Component for an Entity Component System in SpriteKit