p2s
Version:
A JavaScript 2D physics engine.
108 lines (96 loc) • 3.46 kB
HTML
<html>
<head>
<title>Compound objects demo - p2.js physics engine</title>
<script src="../build/p2.js"></script>
<script src="../build/p2.renderer.js"></script>
<link href="css/demo.css" rel="stylesheet"/>
<meta name="description" content="Shows how to add shapes with offset and rotation in a Body.">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
</head>
<body>
<script>
// Create demo application
var app = new p2.WebGLRenderer(function(){
var N = 2,
M = 2,
d = 1.2,
r = 0.3;
var world = new p2.World({
gravity : [0,-10]
});
this.setWorld(world);
// Create circle bodies
body1 = new p2.Body({
mass: 1,
position: [-M*r*d, N*r*d*2],
angularVelocity : 1
});
body2 = new p2.Body({
mass: 1,
position: [M*r*d, N*r*d*2],
angularVelocity : 1
});
body3 = new p2.Body({
mass: 1,
position: [-2*M*r*d, N*r*d*2],
angularVelocity : 1
});
for(var i=0; i<N; i++){
for(var j=0; j<M; j++){
var x = (i-N/2+1/2)*2*r*d;
var y = (j-M/2+1/2)*2*r*d;
var angle = (j + i) * Math.PI / 8;
body1.addShape(new p2.Particle(), [x,y], 0);
body2.addShape(new p2.Circle({ radius: r }), [x,y], 0);
body3.addShape(new p2.Capsule({ radius: r/2, length: r }), [x,y], angle);
}
}
world.addBody(body1);
world.addBody(body2);
world.addBody(body3);
// Create boxes
box = new p2.Body({
position:[3,2],
mass : 1,
angularVelocity : -0.2
});
box.addShape(new p2.Box({ width: 1, height: 1 }), [0,0.5], Math.PI/4);
box.addShape(new p2.Box({ width: 1, height: 1 }), [0,-0.5], 0);
world.addBody(box);
// Create circle
var circleShape = new p2.Circle({ radius: 0.5 });
var circle = new p2.Body({
position:[3,4],
mass : 1,
angularVelocity:1
});
circle.addShape(circleShape);
world.addBody(circle);
// Create convex
var verts = [];
for(var i=0, N=5; i<N; i++){
var a = 2*Math.PI / N * i;
verts.push([0.5*Math.cos(a),0.5*Math.sin(a)]);
}
convex = new p2.Body({
position:[-4,2],
mass : 1,
angularVelocity : -0.1
});
convex.addShape(new p2.Convex({ vertices: verts }),[0, 0.5]);
convex.addShape(new p2.Convex({ vertices: verts }),[0,-0.5],Math.PI/4);
world.addBody(convex);
// Create ground
planeShape = new p2.Plane();
plane = new p2.Body({
position:[0,-1],
});
plane.addShape(planeShape);
world.addBody(plane);
this.frame(0, 0, 6, 6);
});
</script>
</body>
</html>