onMount method

@override void onMount()

Called when the owning node enters a live scene graph.

Implementation

@override
void onMount() {
  final world = findAncestorWorld(node);
  if (world == null) {
    throw StateError(
      'Joint mounted with no PhysicsWorld on an ancestor node',
    );
  }
  if (!world.simulation.supportsJoints) {
    throw UnsupportedError('${world.backendName} has no joints');
  }
  _world = world;
  _bodyA = _resolveBody(node, 'own');
  final other = otherNode;
  if (other != null) {
    _bodyB = _resolveBody(other, 'other');
  } else {
    _bodyB = _anchorHandle = world.simulation.createAnchorBody();
  }
  _handle = world.simulation.createJoint(
    buildDesc(_bodyA, _bodyB, _collisionsEnabled),
  );
}