package world type PointClassID uint8 const ( PointClassDefault PointClassID = iota PointClassTrackUnknown PointClassTrackIncoming PointClassTrackOutgoing ) type LineClassID uint8 const ( LineClassDefault LineClassID = iota LineClassTrackIncoming LineCLassTrackOutgoing LineClassMeasurement ) type CircleClassID uint8 const ( CircleClassDefault CircleClassID = iota CircleClassHome CircleClassAcquired CircleClassOccupied CircleClassFree )