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

import com.genuts.gameui.*;

/**
 * Displays different types of sprites as tiles on the board. <br>
 * Some of them are animated, some others move. <br>
 * The order of tiles is taken from the class AnimateTiles.
 */
public class AnimateBoard extends Applet {

  private PlayField playfield = null;

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

    // Loading images
    Image tileImage = getImage(getClass().getResource("tile.gif"));
    Image rollImage = getImage(getClass().getResource("roll.gif"));
    Image rollLeftImage = getImage(getClass().getResource("roll-left.gif"));
    Image rollRightImage = getImage(getClass().getResource("roll-right.gif"));
    Image bubbleImage = getImage(getClass().getResource("bubble.gif"));
    Image backgroundImage = getImage(getClass().getResource("background.jpg"));
    MediaTracker tracker = new MediaTracker(this);
    tracker.addImage(tileImage, 0);
    tracker.addImage(rollImage, 0);
    tracker.addImage(rollLeftImage, 0);
    tracker.addImage(rollRightImage, 0);
    tracker.addImage(bubbleImage, 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.getWidth(null);

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

    // Display tiles from class AnimateTiles.
    // 6 types of tiles:
    //  * 0 : no tile
    //  * 1 : simple tile (no animation, no movement)
    //  * 2 : flat rolling tile (animation, no movement)
    //  * 3 : left rolling tile (animation, no movement)
    //  * 4 : right rolling tile (animation, no movement)
    //  * 5 : footbridge tile (animation, movement)
    for (int y = 0; y < AnimateTiles.tiles.length; y++) {
      for (int x = 0; x < AnimateTiles.tiles[y].length; x++) {
	Sprite tile = null;
	switch (AnimateTiles.tiles[y][x]) {
	case 0:
	  break;
	case 1:
	  tile = new Sprite(tileImage);
	  tile.setId(0);
	  break;
	case 2:
	  tile = new AnimatedSprite(rollImage, 4, 1, 3);
	  tile.setId(0);
	  break;
	case 3:
	  tile = new AnimatedSprite(rollLeftImage, 4, 1, 3);
	  tile.setId(0);
	  break;
	case 4:
	  tile = new AnimatedSprite(rollRightImage, 4, 1, 3);
	  tile.setId(0);
	  break;
	case 5:
	  AnimatedSprite anim = new AnimatedSprite(bubbleImage, 5, 1, 3);
	  // Randomly desynchronize the animation of footbridge sprites.
	  anim.setCurrentPictureNumber(((int) (Math.random()*1000))%5);
	  tile = new TileWrapper(anim);
	  tile.setId(0);
	  break;
	}
	if (tile != null) {
	  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();
    }
  }
}