import info.gridworld.actor.*; 

import info.gridworld.grid.Location; 

import java.util.ArrayList;

import java.awt.Color;

public class OpossumCritter extends Critter

   {

   private int numStepsDead;

   public OpossumCritter()

      {

      numStepsDead=0;

      setColor(Color.ORANGE);

      } // end constructor

   public void processActors( ArrayList<Actor> actors)

      {

      int numFriends=0;

      int numFoes=0;

      for( Actor a : actors )

         {

         if( isFriend( a ) )

            {

            numFriends++;

            }

         else if( isFoe( a ) )

            {

            numFoes++;

            }   

         }

      System.out.println( "numFoes is: " + numFoes );

      System.out.println( "numFriends is: " + numFriends );

      if( numFoes > numFriends )

         {

         setColor( Color.BLACK );

         numStepsDead++;

         }

      else

         {

         setColor( Color.ORANGE );

         numStepsDead=0;

         }      

      System.out.println("num steps dead is:" + numStepsDead );

      } // end method processActors

   public Location selectMoveLocation( ArrayList<Location> locs )

      {

      if( numStepsDead == 3) // if 3, I'm dead

         {

         return null;

         }

      else if( numStepsDead > 0 ) //playing dead

         {

         return getLocation(); // just stay where I'm at

         }

      else

         {

         return super.selectMoveLocation( locs ); // i'm free!

         }                               // move like a Critter

      } // end method selectMoveLocation

   private boolean isFriend( Actor other )

      {

      if( other instanceof Flower )

         {

         return true;

         }

      else

         {

         return false;

         }   

      } // end method isFriend

   private boolean isFoe( Actor other )

      {

      if( other instanceof Bug || other instanceof Critter )

         {

         return true;

         }   

      else

         {

         return false;

         }   

      } // end method isFoe        

   } // end class OpossumCritter

**************************************************************************

/* 

 * AP(r) Computer Science GridWorld Case Study:

 * Copyright(c) 2005-2006 Cay S. Horstmann (http://horstmann.com)

 *

 * This code is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 * 

 * @author Cay Horstmann

 */

import info.gridworld.actor.ActorWorld;

import info.gridworld.actor.Bug;

import info.gridworld.actor.Rock;

import info.gridworld.actor.Flower;

import info.gridworld.actor.Critter;

import info.gridworld.grid.Location; 

/**

 * This class runs a world that contains a bug and a rock, added at random

 * locations. Click on empty locations to add additional actors. Click on

 * populated locations to invoke methods on their occupants. <br />

 * To build your own worlds, define your own actors and a runner class. See the

 * BoxBugRunner (in the boxBug folder) for an example. <br />

 * This class is not tested on the AP CS A and AB exams.

 */

public class OpossumCritterRunner

{

    public static void main(String[] args)

    {

        ActorWorld world = new ActorWorld();

        world.add(new Location(0,0), new Bug());

        world.add(new Location(0,1), new Flower());

        world.add(new Location(0,2), new Bug());

        world.add(new Location(1,1), new OpossumCritter());

        world.add(new Location(2,1), new Critter());

        world.add(new Location(2,2), new Rock());

        world.show();

    }

}