cannon-es-control
Version:
A lightweight 3D physics engine written in JavaScript with control system tools
65 lines (54 loc) • 2.02 kB
HTML
<html lang="en">
<head>
<meta charset="utf-8" />
<title>cannon.js - fixed rotation 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'
/**
* Show behaviour of body with fixed rotation
*/
const demo = new Demo()
demo.addScene('Fixed rotation', () => {
const world = setupWorld(demo)
const size = 1.0
// Create a box with fixed rotation
const shape1 = new CANNON.Box(new CANNON.Vec3(size, size, size))
const boxBody1 = new CANNON.Body({ mass: 1 })
boxBody1.addShape(shape1)
boxBody1.position.set(0, size, 0)
boxBody1.fixedRotation = true
boxBody1.updateMassProperties()
world.addBody(boxBody1)
demo.addVisual(boxBody1)
// Another one
const shape2 = new CANNON.Box(new CANNON.Vec3(size, size, size))
const boxBody2 = new CANNON.Body({ mass: 1 })
boxBody2.addShape(shape2)
boxBody2.position.set(-(size * 3) / 2, size * 4, 0)
boxBody2.fixedRotation = true
boxBody2.updateMassProperties()
world.addBody(boxBody2)
demo.addVisual(boxBody2)
})
demo.start()
function setupWorld(demo) {
const world = demo.getWorld()
world.gravity.set(0, -10, 0)
// 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>