applyWheelForce method
Apply a torque on one of the wheels.
Implementation
void applyWheelForce(double value, int wheelIndex) {
final axis = wheelAxes[wheelIndex];
final wheelBody = wheelBodies[wheelIndex];
final bodyTorque = wheelBody.torque;
axis.scale(value, _torque);
wheelBody.vectorToWorldFrame(_torque, _torque);
bodyTorque.vadd(_torque, bodyTorque);
}