cannon-es-control
Version:
A lightweight 3D physics engine written in JavaScript with control system tools
74 lines (57 loc) • 2.14 kB
HTML
<html lang="en">
<head>
<meta charset="utf-8" />
<title>cannon.js - single body on plane demo</title>
<link rel="stylesheet" href="css/style.css" type="text/css" />
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0" />
</head>
<body>
<script type="module">
import * as CANNON from '../dist/cannon-es-control.js'
import { Demo } from './js/Demo.js'
/**
* Just a simple body on a plane.
*/
const demo = new Demo()
demo.addScene('Sphere', () => {
const world = setupWorld(demo)
const size = 2
const sphereShape = new CANNON.Sphere(size)
const body = new CANNON.Body({ mass: 30 })
body.addShape(sphereShape)
body.position.set(0, size * 2, size)
world.addBody(body)
demo.addVisual(body)
})
demo.addScene('Box', () => {
const world = setupWorld(demo)
const size = 2
const boxShape = new CANNON.Box(new CANNON.Vec3(size, size, size))
const body = new CANNON.Body({ mass: 30 })
body.addShape(boxShape)
body.position.set(0, size * 2, size)
world.addBody(body)
demo.addVisual(body)
})
demo.start()
function setupWorld(demo) {
const world = demo.getWorld()
world.gravity.set(0, -10, 0)
// Tweak contact properties.
// Contact stiffness - use to make softer/harder contacts
world.defaultContactMaterial.contactEquationStiffness = 1e7
// Stabilization time in number of timesteps
world.defaultContactMaterial.contactEquationRelaxation = 4
// Static ground plane
const groundShape = new CANNON.Plane()
const groundBody = new CANNON.Body({ mass: 0 })
groundBody.addShape(groundShape)
groundBody.quaternion.setFromEuler(-Math.PI / 2, 0, 0)
world.addBody(groundBody)
demo.addVisual(groundBody)
return world
}
</script>
</body>
</html>