import { Spring } from './spring'; export default function createSpring( from: number, to: number, bounce: number, duration: number, delaySeconds: number = 0, ) { const mass = 1; const stiffness = Math.pow((Math.PI * 2) / duration, 2); const damping = bounce >= 0 ? ((1 - bounce) * (4 * Math.PI)) / duration : ((1 + bounce) * (4 * Math.PI)) / duration; const spring = new Spring(from); spring.updateParams({ mass, stiffness, damping }); spring.setTargetPosition(to, delaySeconds); return spring; }