/*
    * TrackerHitType.java
    *
    * Created on December 4, 2007, 11:14 AM
    *
    * To change this template, choose Tools | Template Manager
    * and open the template in the editor.
    */
   
  package org.lcsim.recon.tracking.digitization.sisim;
  
  import org.lcsim.detector.tracker.silicon.SiSensor;
  
  /**
   *
   * @author tknelson
   */
  public class TrackerHitType
  {
      
      private CoordinateSystem _coordinate_system;
      private MeasurementType _measurement_type;
      
      public enum CoordinateSystem
      {
          GLOBAL,
          SENSOR,
          UNKNOWN;
      }
      
      public enum MeasurementType
      {
          STRIP_1D,
          STRIP_2D,
          PIXEL;
      }
      
      /** Creates a new instance of TrackerHitType */
      public TrackerHitType(CoordinateSystem coordinate_system, MeasurementType measurement_type)
      {
          _coordinate_system = coordinate_system;
          _measurement_type = measurement_type;
      }
      
      public CoordinateSystem getCoordinateSystem()
      {
          return _coordinate_system;
      }
      
      public MeasurementType getMeasurementType()
      {
          return _measurement_type;
      }
      
      private void setCoordinateSystem(CoordinateSystem coordinate_system)
      {
          _coordinate_system = coordinate_system;
      }
      
      private void setMeasurementType(MeasurementType measurement_type)
      {
          _measurement_type = measurement_type;
      }
      
      public static TrackerHitType decoded(int encoded_type)
      {
          return Decoder.decoded(encoded_type);
      }
      
      public static int encoded(TrackerHitType decoded_type)
      {
          return Decoder.encoded(decoded_type);
      }
      
      private static class Decoder
      {
          
          private static TrackerHitType decoded(int raw_type)
          {
              int measurement_type_index =    raw_type & 0x3    ;
              int coordinate_system_index =  (raw_type & 0x4) >> 2;
              
              MeasurementType measurement_type = MeasurementType.values()[measurement_type_index];
              CoordinateSystem coordinate_system = CoordinateSystem.values()[coordinate_system_index];
   
              return new TrackerHitType(coordinate_system,measurement_type);
          }
          
          private static int encoded(TrackerHitType type)
          {
              return (type.getCoordinateSystem().ordinal()<<2) | type.getMeasurementType().ordinal();
          }
          
      }
      
      
      
      
  }