planck/example/SphereStack.ts

2D JavaScript/TypeScript physics engine for cross-platform HTML5 game development

/*
 * Copyright (c) Erin Catto
 * Licensed under the MIT license
 */

import { World, Body, Edge, Circle, Testbed } from "planck";

const world = new World({
  gravity: { x: 0, y: -10 },
});

const testbed = Testbed.mount();
testbed.start(world);

const COUNT = 10;
const bodies: Body[] = [];

const ground = world.createBody({
  type: "static",
});
ground.createFixture({
  shape: new Edge({ x: -40.0, y: 0.0 }, { x: 40.0, y: 0.0 }),
  density: 0.0,
});

const circle = new Circle(1.0);

for (let i = 0; i < COUNT; ++i) {
  bodies[i] = world.createBody({
    type: "dynamic",
    position: { x: 0.0, y: 4.0 + 3.0 * i },
    linearVelocity: { x: 0.0, y: -50.0 },
  });
  bodies[i].createFixture({
    shape: circle,
    density: 1.0,
  });
}