How can you make a physics object that can be pushed back and forth in one direction but not to the sides?
There should be a high static friction to the sides for example for a sledge, skis, a simplified car or rail cart.
You can somehow achieve a similar result by using SCNPhysicsVehicle, but it is only satisfying when you are using it on a flat surface. On a slope the wheels will always slowly slip to the sides. You can reduce this by using extreme values for friction and braking power but this will cause other issues. Also with SCNPhysicsVehicle the automatic resting is not functional.
