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/*
* Jesse Morgan <jesterpm@u.washington.edu>
*
* TCSS 305 - Autumn 2009
* Tetris Project
* 17 November 2009
*/
package tetris.gui;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Observable;
import javax.swing.Timer;
import tetris.board.TetrisBoard;
import tetris.gui.animations.TetrisPieceAnimation;
import tetris.gui.images.ImageRes;
import tetris.model.IntPoint;
import tetris.piece.TPiece;
import tetris.piece.TetrisPiece;
/**
* Panel that draws the tetris board.
*
* @author Jesse Morgan <jesterpm@u.washington.edu>
* @version 1.0 1 Dec 2009
*/
@SuppressWarnings("serial")
public class NextPieceDisplay extends TetrisPieceDisplay {
/**
* The Pencil Graphic.
*/
private static final Image PENCIL = ImageRes.loadImage(ImageRes.WRITING_PENCIL);
/**
* The next piece.
*/
private TetrisPiece my_next_piece;
/**
* Our animator.
*/
private TetrisPieceAnimation my_animation;
/**
* Animation timer.
*/
private final Timer my_timer;
/**
* Constructor.
*/
public NextPieceDisplay() {
// Call parent
super(TetrisPiece.TETRIS_PIECE_SIZE, TetrisPiece.TETRIS_PIECE_SIZE);
my_animation = new TetrisPieceAnimation(new TPiece(0, 0));
my_timer = new Timer(TetrisPieceAnimation.FRAME_RATE, new ActionListener() {
public void actionPerformed(final ActionEvent the_event) {
my_animation.stepAnimation();
repaint();
}
});
}
/**
* Update the next piece display.
*
* @param the_observable The tetris board we receive updates for.
* @param the_argument Unused argument.
*/
public void update(final Observable the_observable, final Object the_argument) {
if (the_observable instanceof TetrisBoard) {
final TetrisBoard tb = (TetrisBoard) the_observable;
// If the next piece we know about is not the same next piece...
if (tb.getNextPiece() != my_next_piece) {
my_next_piece = tb.getNextPiece();
my_bricks.clear();
for (IntPoint p : my_next_piece.getBoardCoordinates()) {
my_bricks.add(new IntPoint(p.getX() - my_next_piece.getX(),
p.getY() - my_next_piece.getY() +
TetrisBoard.NEW_PIECE_BUFFER));
}
my_animation = new TetrisPieceAnimation(my_next_piece);
startAnimation();
}
repaint();
}
}
@Override
protected void paintComponent(final Graphics the_graphics) {
super.paintComponent(the_graphics);
if (my_animation.isRunning()) {
final int x = my_animation.getX();
final int y = my_animation.getY() - PENCIL.getHeight(null);
the_graphics.drawImage(PENCIL, x, y, null);
// Normally you'd draw the animation image here, but we just want the pencil to move.
}
}
/**
* Start the animation and timer.
*/
private void startAnimation() {
my_animation.start();
my_timer.start();
}
}
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