import java.applet.Applet;
import java.awt.*;

import com.genuts.gameui.*;

/**
 * Displays randomly sprites as tiles on the board. <br>
 * This offer the abilty to have a none uniform display of tiles.
 * The order of tiles is taken from the class Tiles.
 */
public class RandomBoard extends Applet {

  private PlayField playfield = null;

  private Sprite currentSprite;

  private Image ballImage = null;
  private Image redBallImage = null;

  public void init() {
    setLayout(new FlowLayout(FlowLayout.CENTER, 0, 0));

    // Loading images
    Image[] tileImage = new Image[4];
    tileImage[0] = getImage(getClass().getResource("tile-1.gif"));
    tileImage[1] = getImage(getClass().getResource("tile-2.gif"));
    tileImage[2] = getImage(getClass().getResource("tile-3.gif"));
    tileImage[3] = getImage(getClass().getResource("tile-4.gif"));
    Image backgroundImage = getImage(getClass().getResource("background.jpg"));
    MediaTracker tracker = new MediaTracker(this);
    tracker.addImage(tileImage[0], 0);
    tracker.addImage(tileImage[1], 0);
    tracker.addImage(tileImage[2], 0);
    tracker.addImage(tileImage[3], 0);
    tracker.addImage(backgroundImage, 0);
    try {
      tracker.waitForID(0);
    } catch (InterruptedException e) {
      System.out.println("Loading interrupted");
    }

    // Gets the size of a tile
    int tileSize = tileImage[0].getWidth(null);

    // Creates the playfield
    playfield = new PlayField(Tiles.tiles[0].length*tileSize,
			      Tiles.tiles.length*tileSize);
    playfield.setBackground(Color.white);
    playfield.setBackgroundImage(backgroundImage);

    // Display tiles from class Tiles.
    // If the current position in the Tiles array is set to true,
    // a sprite, randomly taken from four ones, is created.
    for (int y = 0; y < Tiles.tiles.length; y++) {
      for (int x = 0; x < Tiles.tiles[y].length; x++) {
	if (Tiles.tiles[y][x]) {
	  Sprite tile = new Sprite(tileImage[((int) (Math.random()*10000)) % 4]);
	  tile.setPosition(x*tileSize, y*tileSize);
	  playfield.addSprite(tile);
	}
      }
    }

    // Displays the playfield
    add(playfield);
  }

  public void start() {
    // Activate the playfield
    playfield.setPause(false);
  }

  public void stop() {
    if (playfield != null) {
      playfield.stop();
    }
  }
}