package org.opentrafficsim.road.gtu.lane.perception.categories.neighbors;
   
   import org.djunits.value.vdouble.scalar.Duration;
   import org.djunits.value.vdouble.scalar.Length;
   import org.opentrafficsim.base.parameters.ParameterTypeDuration;
   import org.opentrafficsim.base.parameters.ParameterTypeLength;
   import org.opentrafficsim.base.parameters.constraint.NumericConstraint;
   import org.opentrafficsim.core.gtu.perception.PerceptionCategory;
   import org.opentrafficsim.road.gtu.lane.LaneBasedGTU;
  import org.opentrafficsim.road.gtu.lane.perception.LanePerception;
  import org.opentrafficsim.road.gtu.lane.perception.PerceptionCollectable;
  import org.opentrafficsim.road.gtu.lane.perception.headway.HeadwayGTU;
  
  /**
   * Perception category for longitudinal control such as ACC and CACC.
   * <p>
   * Copyright (c) 2013-2019 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/node/13">OpenTrafficSim License</a>.
   * <p>
   * @version $Revision$, $LastChangedDate$, by $Author$, initial version Mar 12, 2019 <br>
   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
   * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
   */
  public interface LongitudinalControllerPerception extends PerceptionCategory<LaneBasedGTU, LanePerception>
  {
  
      /** Sensor range parameter. */
      ParameterTypeLength RANGE =
              new ParameterTypeLength("range", "Sensor range", Length.createSI(200), NumericConstraint.POSITIVE);
  
      /** Sensor delay parameter. */
      ParameterTypeDuration DELAY =
              new ParameterTypeDuration("delay", "Sensor delay", Duration.createSI(0.2), NumericConstraint.POSITIVE);
  
      /**
       * Returns the leaders.
       * @return leaders
       */
      PerceptionCollectable<HeadwayGTU, LaneBasedGTU> getLeaders();
  
  }