from Frank Papenmeier (hodka) --- from the submission Changing the distance and resetDistance Properties of a NearSensor from Python did only take effect, once there was a collision within the old radius. Reason: The radius of the PHY_IPhysicsController was not set to the new values. Solution: It is set at the end of the CheckResetDistance function. I moved the relevant code snippet from the Evaluate function into a new function called SetPhysCtrlRadius in order to avoid duplicating code doing the same thing.