comments added to the model

Game_Code/src/Game.java

-
-import java.awt.*;
-import java.awt.event.*;
-import java.awt.geom.Ellipse2D;
-import java.awt.geom.Rectangle2D;
-import java.util.HashMap;
-import java.util.HashSet;
-
-import javax.swing.*;
-
-
-public class Game extends JPanel implements KeyListener, ActionListener {
-	
-	private int height, width;
-	private Timer t = new Timer(5, this);
-	private boolean first;
-	
-	private HashSet<String> keys = new HashSet<String>();
-	
-	// pad
-	private final int SPEED = 1;
-	private int padH = 10, padW = 40;
-	private int bottomPadX, topPadX;
-	private int inset = 10;
-	
-	// ball
-	private double ballX, ballY, velX = 1, velY = 1, ballSize = 20;
-	
-	// score
-	private int scoreTop, scoreBottom;
-	
-	public Game() {
-		addKeyListener(this);
-		setFocusable(true);
-		setFocusTraversalKeysEnabled(false);
-		first = true;
-		t.setInitialDelay(100);
-		t.start();
-	}
-	
-	@Override
-	protected void paintComponent(Graphics g) {
-		super.paintComponent(g);
-		Graphics2D g2d = (Graphics2D) g;
-		height = getHeight();
-		width = getWidth();
-
-		// initial positioning
-		if (first) {
-			bottomPadX = width / 2 - padW / 2;
-			topPadX = bottomPadX;
-			ballX = width / 2 - ballSize / 2;
-			ballY = height / 2 - ballSize / 2;
-			first = false;
-		}
-		
-		// bottom pad
-		Rectangle2D bottomPad = new Rectangle(bottomPadX, height - padH - inset, padW, padH);
-		g2d.fill(bottomPad);
-		
-		// top pad
-		Rectangle2D topPad = new Rectangle(topPadX, inset, padW, padH);
-		g2d.fill(topPad);
-		
-		// ball
-		Ellipse2D ball = new Ellipse2D.Double(ballX, ballY, ballSize, ballSize);
-		g2d.fill(ball);
-		
-		// scores
-		String scoreB = "Bottom: " + new Integer(scoreBottom).toString();
-		String scoreT = "Top: " + new Integer(scoreTop).toString();
-		g2d.drawString(scoreB, 10, height / 2);
-		g2d.drawString(scoreT, width - 50, height / 2);
-	}
-	
-	@Override
-	public void actionPerformed(ActionEvent e) {
-		// side walls
-		if (ballX < 0 || ballX > width - ballSize) {
-			velX = -velX;
-		}
-		// top / down walls
-		if (ballY < 0) {
-			velY = -velY;
-			++ scoreBottom;
-		}
-		
-		if (ballY + ballSize > height) {
-			velY = -velY;
-			++ scoreTop;
-		}
-		// bottom pad
-		if (ballY + ballSize >= height - padH - inset && velY > 0)
-			if (ballX + ballSize >= bottomPadX && ballX <= bottomPadX + padW)
-				velY = -velY;
-
-		// top pad
-		if (ballY <= padH + inset && velY < 0)
-			if (ballX + ballSize >= topPadX && ballX <= topPadX + padW)
-				velY = -velY;
-
-		ballX += velX;
-		ballY += velY;
-		
-		// pressed keys
-		if (keys.size() == 1) {
-			if (keys.contains("LEFT")) {
-				bottomPadX -= (bottomPadX > 0) ? SPEED : 0;
-			}
-			else if (keys.contains("RIGHT")) {
-				bottomPadX += (bottomPadX < width - padW) ? SPEED : 0;
-			}
-		}
-		
-		// AI
-		double delta = ballX - topPadX;
-		if (delta > 0) {
-			topPadX += (topPadX < width - padW) ? SPEED : 0;
-		}
-		else if (delta < 0) {
-			topPadX -= (topPadX > 0) ? SPEED : 0;
-		}
-		
-		repaint();
-	}
-
-	@Override
-	public void keyTyped(KeyEvent e) {}
-
-	@Override
-	public void keyPressed(KeyEvent e) {
-		int code = e.getKeyCode();
-		switch (code) {
-		case KeyEvent.VK_LEFT:
-			keys.add("LEFT");
-			break;
-		case KeyEvent.VK_RIGHT:
-			keys.add("RIGHT");
-			break;
-		}
-	}
-
-	@Override
-	public void keyReleased(KeyEvent e) {
-		int code = e.getKeyCode();
-		switch (code) {
-		case KeyEvent.VK_LEFT:
-			keys.remove("LEFT");
-			break;
-		case KeyEvent.VK_RIGHT:
-			keys.remove("RIGHT");
-			break;
-		}
-	}
-}

Game_Code/src/View.java

@@ -107,7 +107,7 @@ public class View extends JFrame{
 	}
 	
 	public void single() {
-		Pong_viewAndController view_controller = new Pong_viewAndController(this);
+		Pong_viewAndController view_controller = new Pong_viewAndController();
 		this.setVisible(false);
 	}