/**
* Sets the global gravity force applied to the entire dynamics scene.
* @param {number} x
* @param {number} y
* @param {number} z
*/
setGravity(x, y, z) {
ammoVec.x = x;
ammoVec.y = y;
ammoVec.z = z;
this.dynamicsWorld.setGravity(ammoVec);
}
constructor() {
this.collisionConfiguration = new Ammo.btDefaultCollisionConfiguration();
this.dispatcher = new Ammo.btCollisionDispatcher(this.collisionConfiguration);
this.overlappingPairCache = new Ammo.btDbvtBroadphase();
this.solver = new Ammo.btSequentialImpulseConstraintSolver();
this.dynamicsWorld = new Ammo.btDiscreteDynamicsWorld(
this.dispatcher,
this.overlappingPairCache,
this.solver,
this.collisionConfiguration
);
this.dynamicsWorld.setGravity(EARTH_GRAVITY);
}
/**
* Steps the dynamics scene using the supplied information.
* @param {UpdateArgs} updateArgs
*/
onUpdate(updateArgs) {
// Args: timeStep, maximum number of sub-steps.
this.dynamicsWorld.stepSimulation(updateArgs.deltaTime, 2);
}