package org.opentrafficsim.road.network.lane;
   
   import java.io.Serializable;
   
   import org.opentrafficsim.core.gtu.GTUDirectionality;
   
   /**
    * <p>
    * Copyright (c) 2013-2016 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
   * </p>
   * $LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $,
   * initial version Mar 30, 2016 <br>
   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
   */
  public class LaneDirection implements Serializable
  {
      /** */
      private static final long serialVersionUID = 20160330L;
  
      /** The lane. */
      private final Lane lane;
  
      /** The GTU direction to drive on this lane. */
      private final GTUDirectionality direction;
  
      /**
       * @param lane the lane
       * @param direction the direction to drive on this lane
       */
      public LaneDirection(final Lane lane, final GTUDirectionality direction)
      {
          super();
          this.lane = lane;
          this.direction = direction;
      }
  
      /**
       * @return the lane
       */
      public final Lane getLane()
      {
          return this.lane;
      }
  
      /**
       * @return the direction to drive on this lane
       */
      public final GTUDirectionality getDirection()
      {
          return this.direction;
      }
  
      /** {@inheritDoc} */
      @Override
      public String toString()
      {
          return "[" + this.lane + (this.direction.isPlus() ? " +]" : " -]");
      }
  
      /** {@inheritDoc} */
      @Override
      public final int hashCode()
      {
          final int prime = 31;
          int result = 1;
          result = prime * result + ((this.direction == null) ? 0 : this.direction.hashCode());
          result = prime * result + ((this.lane == null) ? 0 : this.lane.hashCode());
          return result;
      }
  
      /** {@inheritDoc} */
      @Override
      public final boolean equals(final Object obj)
      {
          if (this == obj)
          {
              return true;
          }
          if (obj == null)
          {
              return false;
          }
          if (getClass() != obj.getClass())
          {
              return false;
          }
          LaneDirection other = (LaneDirection) obj;
          if (this.direction != other.direction)
          {
              return false;
          }
          if (this.lane == null)
          {
              if (other.lane != null)
              {
                  return false;
              }
         }
         else if (!this.lane.equals(other.lane))
         {
             return false;
         }
         return true;
     }
     
 }