// Class: SimpleMBSDemo1
//
// Author: Alyce Brady, Joel Booth
//
// This class is based on the College Board's SimpleMBSDemo1 class, as
// allowed by the GNU General Public License.  The original SimpleMBSDemo1
// is a component class within the AP(r) CS Marine Biology Simulation
// case study (see
// http://www.collegeboard.com/student/testing/ap/compsci_a/case.html).
//
// License Information:
//   This class 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 class 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.

package edu.kzoo.mbsInAGrid;

import java.awt.Color;

import edu.kzoo.grid.BoundedGrid;
import edu.kzoo.grid.Direction;
import edu.kzoo.grid.Location;

import edu.kzoo.grid.display.DisplayMap;
import edu.kzoo.grid.display.ScaledImageDisplay;
import edu.kzoo.grid.display.RotatedDecorator;
import edu.kzoo.grid.display.ScaledImageTintDecorator;

import edu.kzoo.grid.gui.GridAppFrame;

/**
 *  Grid Container Package Examples:<br>
 * 
 *  The <code>SimpleMBSDemo1</code> class provides a main method that creates
 *  a simulation of a number of fish swimming in a bounded environment.
 *  It also creates a simple window in which to view the environment
 *  after each timestep in the simulation. Unlike the full version of
 *  the simulation program, <code>SimpleMBSDemo1</code> does not use an object
 *  of the <code>Simulation</code> class.
 *
 *  <p>
 *  This <code>SimpleMBSDemo1</code> class is based on the College Board's
 *  <code>SimpleMBSDemo1</code> class, as allowed by the GNU General
 *  Public License.
 *
 *  @author Alyce Brady
 *  @author Joel Booth (changes made to use decorators)
 *  @version 23 August 2004
 **/

public class SimpleMBSDemo1
{
    // Specify number of rows and columns in environment.
    private static final int ENV_ROWS = 10;      // rows in environment
    private static final int ENV_COLS = 10;      // columns in environment

    // Specify attributes of the grid display.
    private static final int MAX_WIDTH = 300;
    private static final int MAX_HEIGHT = 300;
    private static final int MIN_CELL_SIZE = 20;
    private static final Color BACKGROUND_COLOR = Color.BLUE;

    // Specify how many timesteps to run the simulation.
    private static final int NUM_STEPS = 25;     // number of timesteps

    /** Start the Marine Biology Simulation program.
     *  The String arguments (args) are not used in this application.
     **/
    public static void main(String[] args)
    {
        // Construct an empty environment (represented as a grid) and
        // several fish in the context of that environment.
        BoundedGrid env = new BoundedGrid(ENV_ROWS, ENV_COLS);
        GridFish f1 = new GridFish(env, new Location(2, 2));
        GridFish f2 = new GridFish(env, new Location(2, 3));
        GridFish f3 = new GridFish(env, new Location(5, 8));

        // Construct a window to display an environment as a grid
        // and specify how to display a fish.
        GridAppFrame display = new GridAppFrame();
        display.includeSpeedSlider();
        display.constructWindowContents("Marine Biology Simulation Demo 1",
                                        BACKGROUND_COLOR, 
                                        MAX_WIDTH, MAX_HEIGHT, MIN_CELL_SIZE);
        display.setGrid(env);

		// Create a ScaledImageDisplay that uses a RotatedDecorator as 
		// well as a ScaledImageTintDecorator to associate with a GridFish.
		ScaledImageDisplay imageDisplay =
                                new ScaledImageDisplay("smallfish.gif");
		imageDisplay.addDecorator(new RotatedDecorator(Direction.EAST));
		imageDisplay.addDecorator(new ScaledImageTintDecorator());       
        DisplayMap.associate("edu.kzoo.mbsInAGrid.GridFish", imageDisplay);

        // Run the simulation for the specified number of steps.
        for ( int i = 0; i < NUM_STEPS; i++ )
        {
            f1.act();
            f2.act();
            f3.act();
            display.showGrid();
        }
    }
}