pocket-physics/src/solve-drag.ts

Verlet physics extracted from pocket-ces demos

import { VelocityDerivable } from "./common-types";

export const solveDrag = (p1: VelocityDerivable, drag: number) => {
  const x = (p1.ppos.x - p1.cpos.x) * drag;
  const y = (p1.ppos.y - p1.cpos.y) * drag;
  p1.ppos.x = p1.cpos.x + x;
  p1.ppos.y = p1.cpos.y + y;
};