package org.opentrafficsim.draw.road;
   
   import java.awt.BasicStroke;
   import java.awt.Color;
   import java.awt.Graphics2D;
   import java.awt.geom.Path2D;
   import java.awt.image.ImageObserver;
   import java.io.Serializable;
   import java.rmi.RemoteException;
  
  import javax.naming.NamingException;
  
  import org.opentrafficsim.core.dsol.OtsSimulatorInterface;
  import org.opentrafficsim.core.geometry.OtsGeometryException;
  import org.opentrafficsim.core.geometry.OtsLine3d;
  import org.opentrafficsim.road.network.lane.object.detector.TrafficLightDetector;
  
  import nl.tudelft.simulation.dsol.animation.D2.Renderable2D;
  
  /**
   * Traffic light detector animation.
   * <p>
   * Copyright (c) 2013-2023 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands.<br>
   * All rights reserved. <br>
   * BSD-style license. See <a href="https://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
   * </p>
   * @author <a href="https://github.com/averbraeck">Alexander Verbraeck</a>
   * @author <a href="https://tudelft.nl/staff/p.knoppers-1">Peter Knoppers</a>
   */
  public class TrafficLightDetectorAnimation extends Renderable2D<TrafficLightDetector> implements Serializable
  {
      /** */
      private static final long serialVersionUID = 20150130L;
  
      /** The traffic light detector. */
      private final TrafficLightDetector detector;
  
      /** Path of the detector. */
      private final Path2D.Float polygon;
  
      /**
       * Construct a TrafficLightDetectorAnimation.
       * @param detector TrafficLightSensor; the traffic light detector that will be animated
       * @param simulator OtsSimulatorInterface; the simulator to schedule on
       * @throws NamingException in case of registration failure of the animation
       * @throws RemoteException in case of remote registration failure of the animation
       * @throws OtsGeometryException when the geometry is bad
       */
      public TrafficLightDetectorAnimation(final TrafficLightDetector detector, final OtsSimulatorInterface simulator)
              throws NamingException, RemoteException, OtsGeometryException
      {
          super(detector, simulator);
          this.detector = detector;
          OtsLine3d coordinates = this.detector.getGeometry();
          this.polygon = new Path2D.Float();
          this.polygon.moveTo(coordinates.get(0).x, coordinates.get(0).y);
          for (int i = 1; i < coordinates.size(); i++)
          {
              this.polygon.lineTo(coordinates.get(i).x, coordinates.get(i).y);
          }
      }
  
      /** {@inheritDoc} */
      @Override
      public final void paint(final Graphics2D graphics, final ImageObserver observer)
      {
          graphics.setColor(this.detector.getOccupancy() ? Color.BLUE : Color.BLACK);
          graphics.setStroke(new BasicStroke(0.2f));
          graphics.draw(this.polygon);
      }
  
      /** {@inheritDoc} */
      @Override
      public final String toString()
      {
          return "TrafficLightDetectorAnimation [getSource()=" + this.getSource() + "]";
      }
  
  }