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rgreid: added new "Spinning top" demo to compound.html. #121

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rgreid: added new "Spinning top" demo to compound.html. #121

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39 changes: 38 additions & 1 deletion demos/compound.html
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,44 @@
*/

var demo = new CANNON.Demo();



demo.addScene("Spinning top",function(){
// Create world
var world = demo.getWorld();
world.gravity.set(0,0,-9.81);
world.broadphase = new CANNON.NaiveBroadphase();
world.solver.iterations = 10;
world.quatNormalizeFast = false;
world.quatNormalizeSkip = 0;
var up = new CANNON.Vec3(0,0,1);
var zero = new CANNON.Vec3(0,0,0);

// ground plane
var groundShape = new CANNON.Plane();
var groundMaterial = new CANNON.Material("groundMaterial");
var groundBody = new CANNON.RigidBody(0,groundShape,groundMaterial);
groundBody.position.set(0,0,0);
world.add(groundBody);
demo.addVisual(groundBody);

//top is a compound body with two cylinders
var topCompound = new CANNON.Compound();
topCompound.addChild(new CANNON.Cylinder(1.00,0.600,0.4,32), zero);
topCompound.addChild(new CANNON.Cylinder(0.10,0.005,2.0,32), zero);
var topMaterial = new CANNON.Material("topMaterial");
var topBody = new CANNON.RigidBody(600*topCompound.volume(), topCompound, topMaterial);//pine wood
topBody.position.set(1,8,3);
topBody.angularVelocity.set(30,0,100);
//topBody.angularDamping=0.01;
world.add(topBody);
demo.addVisual(topBody);

//contact material to adjust friction and coeff of restitution:
topGroundContactMaterial = new CANNON.ContactMaterial(groundMaterial,topMaterial, 1.0, 0.5);
world.addContactMaterial(topGroundContactMaterial);
});

// A compound shape consisting of a number of boxes.
demo.addScene("Boxes",function(){
var world = setupWorld(demo);
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