package org.opentrafficsim.road.gtu.animation;
   
   import java.awt.BasicStroke;
   import java.awt.Color;
   import java.awt.Graphics2D;
   import java.awt.geom.Ellipse2D;
   import java.awt.geom.Rectangle2D;
   import java.awt.image.ImageObserver;
   import java.io.Serializable;
  import java.rmi.RemoteException;
  
  import javax.naming.NamingException;
  
  import nl.tudelft.simulation.dsol.animation.D2.Renderable2D;
  
  import org.opentrafficsim.core.dsol.OTSSimulatorInterface;
  import org.opentrafficsim.core.gtu.animation.GTUColorer;
  import org.opentrafficsim.core.gtu.animation.IDGTUColorer;
  import org.opentrafficsim.road.gtu.lane.LaneBasedIndividualGTU;
  
  /**
   * Draw a car.
   * <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>
   * @version $Revision: 1401 $, $LastChangedDate: 2015-09-14 01:33:02 +0200 (Mon, 14 Sep 2015) $, by $Author: averbraeck $,
   *          initial version 29 dec. 2014 <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 DefaultCarAnimation extends Renderable2D implements Serializable
  {
      /** */
      private static final long serialVersionUID = 20150000L;
      
      /** The GTUColorer that determines the fill color for the car. */
      private GTUColorer gtuColorer;
  
      /**
       * Construct the DefaultCarAnimation for a LaneBasedIndividualCar.
       * @param source the Car to draw
       * @param simulator the simulator to schedule on
       * @throws NamingException in case of registration failure of the animation
       * @throws RemoteException on communication failure
       */
      public DefaultCarAnimation(final LaneBasedIndividualGTU source, final OTSSimulatorInterface simulator)
          throws NamingException, RemoteException
      {
          this(source, simulator, null);
      }
  
      /**
       * Construct the DefaultCarAnimation for a LaneBasedIndividualCar.
       * @param source the Car to draw
       * @param simulator the simulator to schedule on
       * @param gtuColorer GTUColorer; the GTUColorer that determines what fill color to use
       * @throws NamingException in case of registration failure of the animation
       * @throws RemoteException on communication failure
       */
      public DefaultCarAnimation(final LaneBasedIndividualGTU source, final OTSSimulatorInterface simulator,
          final GTUColorer gtuColorer) throws NamingException, RemoteException
      {
          super(source, simulator);
          if (null == gtuColorer)
          {
              this.gtuColorer = new IDGTUColorer();
          }
          else
          {
              this.gtuColorer = gtuColorer;
          }
      }
  
      /**
       * Replace the GTUColorer.
       * @param newGTUColorer GTUColorer; the GTUColorer to use from now on
       */
      public final void setGTUColorer(final GTUColorer newGTUColorer)
      {
          this.gtuColorer = newGTUColorer;
      }
  
      /** {@inheritDoc} */
      @Override
      public final void paint(final Graphics2D graphics, final ImageObserver observer)
      {
          final LaneBasedIndividualGTU car = (LaneBasedIndividualGTU) getSource();
  
          if (car.isDestroyed())
          {
              try
              {
                  destroy();
              }
              catch (Exception e)
              {
                  System.err.println("GTU: " + car.toString());
                  e.printStackTrace();
             }
         }
 
         final double length = car.getLength().getSI();
         final double l2 = length / 2;
         final double width = car.getWidth().getSI();
         final double w2 = width / 2;
         final double w4 = width / 4;
         graphics.setColor(this.gtuColorer.getColor(car));
         BasicStroke saveStroke = (BasicStroke) graphics.getStroke();
         graphics.setStroke(new BasicStroke(0));
         Rectangle2D rectangle = new Rectangle2D.Double(-l2, -w2, length, width);
         graphics.draw(rectangle);
         graphics.fill(rectangle);
         // Draw a white disk at the front to indicate which side faces forward
         graphics.setColor(Color.WHITE);
         Ellipse2D.Double frontIndicator = new Ellipse2D.Double(l2 - w2 - w4, -w4, w2, w2);
         graphics.draw(frontIndicator);
         graphics.fill(frontIndicator);
 
         graphics.setColor(Color.YELLOW);
         if (car.getTurnIndicatorStatus() != null && car.getTurnIndicatorStatus().isLeftOrBoth())
         {
             Rectangle2D.Double leftIndicator = new Rectangle2D.Double(l2 - w4, -w2, w4, w4);
             graphics.fill(leftIndicator);
         }
         
         if (car.getTurnIndicatorStatus() != null && car.getTurnIndicatorStatus().isRightOrBoth())
         {
             Rectangle2D.Double rightIndicator = new Rectangle2D.Double(l2 - w4, w2 - w4, w4, w4);
             graphics.fill(rightIndicator);            
         }
         
         graphics.setColor(Color.RED);
         if (car.getAcceleration().si < -0.5) // TODO this could be a property of a GTU 
         {
             Rectangle2D.Double leftBrake = new Rectangle2D.Double(-l2, w2 - w4, w4, w4);
             Rectangle2D.Double rightBrake = new Rectangle2D.Double(-l2, -w2, w4, w4);
             graphics.setColor(Color.RED);
             graphics.fill(leftBrake);
             graphics.fill(rightBrake);
         }
         graphics.setStroke(saveStroke);
     }
 
     /** {@inheritDoc} */
     @Override
     public final String toString()
     {
         return this.getSource().toString();
     }
 
 }