Javascript 3D Physics Tut 2 Create Kinematic Box

createKinematicBox.js

function createKinematicBox(){

    let pos = {x: 40, y: 6, z: 5};
    let scale = {x: 10, y: 10, z: 10};
    let quat = {x: 0, y: 0, z: 0, w: 1};
    let mass = 0;

    //threeJS Section
    kObject = new THREE.Mesh(new THREE.BoxBufferGeometry(), new THREE.MeshPhongMaterial({color: 0x30ab78}));

    kObject.position.set(pos.x, pos.y, pos.z);
    kObject.scale.set(scale.x, scale.y, scale.z);

    kObject.castShadow = true;
    kObject.receiveShadow = true;

    scene.add(kObject);


    //Ammojs Section
    let transform = new Ammo.btTransform();
    transform.setIdentity();
    transform.setOrigin( new Ammo.btVector3( pos.x, pos.y, pos.z ) );
    transform.setRotation( new Ammo.btQuaternion( quat.x, quat.y, quat.z, quat.w ) );
    let motionState = new Ammo.btDefaultMotionState( transform );

    let colShape = new Ammo.btBoxShape( new Ammo.btVector3( scale.x * 0.5, scale.y * 0.5, scale.z * 0.5 ) );
    colShape.setMargin( 0.05 );

    let localInertia = new Ammo.btVector3( 0, 0, 0 );
    colShape.calculateLocalInertia( mass, localInertia );

    let rbInfo = new Ammo.btRigidBodyConstructionInfo( mass, motionState, colShape, localInertia );
    let body = new Ammo.btRigidBody( rbInfo );

    body.setFriction(4);
    body.setRollingFriction(10);

    body.setActivationState( STATE.DISABLE_DEACTIVATION );
    body.setCollisionFlags( FLAGS.CF_KINEMATIC_OBJECT );


    physicsWorld.addRigidBody( body );
    kObject.userData.physicsBody = body;

}