Added shortcut to reset.

items. There is also a shortcut to quit the application.

.gitignore

@@ -0,0 +1,5 @@
+# Ignore binary files
+bin/*
+
+# Just in case some .class files escape:
+*.class

src/spaceshipsim/SimPanel.java

@@ -0,0 +1,106 @@
+package spaceshipsim;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+import java.awt.geom.*;
+import java.util.*;
+
+import spaceshipsim.entities.*;
+
+/**
+ * @author Nicolás A. Ortega
+ * @copyright Nicolás A. Ortega
+ * @license GNU GPLv3
+ * @year 2014
+ * 
+ */
+public class SimPanel extends JPanel implements Runnable, KeyListener {
+	// Graphics/Framework items
+	private Thread gameloop;
+	//private BufferedImage backbuffer;
+	private Graphics2D g2d;
+	//private AffineTransform identity = new AffineTransform();
+
+	// The Ship
+	private Ship ship;
+
+	public SimPanel() {
+		setFocusable(true);
+		ship = new Ship(400, 300);
+		addKeyListener(this);
+		start();
+	}
+
+	public void start() {
+		gameloop = new Thread(this);
+		gameloop.start();
+	}
+
+	public void stop() { gameloop = null; }
+
+	public void paintComponent(Graphics g) {
+		super.paintComponent(g);
+		g2d = (Graphics2D) g;
+
+		g2d.setColor(Color.BLACK);
+		g2d.fillRect(0, 0, 800, 600);
+
+		drawInfo();
+		drawShip();
+	}
+
+	private void drawInfo() {
+		g2d.translate(0, 10);
+		g2d.setColor(Color.WHITE);
+		g2d.drawString("Welcome to SpaceShipSim v0.2", 10, 10);
+		g2d.drawString("Position: " + (int)ship.getX() + ", " + (int)ship.getY(), 10, 25);
+		g2d.drawString("Velocity (px/s): " + (int)(ship.getVelX() * 50) + ", " + (int)(ship.getVelY() * 50), 10, 40);
+		g2d.drawString("Acceleration (px/s/s): " + (int)(ship.getAccelX() * Math.pow(50, 2)) + ", " + (int)(ship.getAccelY() * Math.pow(50, 2)), 10, 55);
+		g2d.drawString("Move Angle: " + (int)ship.getMoveAngle(), 10, 70);
+		g2d.drawString("Face Angle: " + (int)(ship.getFaceAngle() - 90), 10, 85);
+	}
+
+	private void drawShip() {
+		g2d.translate(ship.getX(), ship.getY());
+		g2d.rotate(Math.toRadians(ship.getFaceAngle()));
+		g2d.setColor(Color.RED);
+		g2d.fill(ship.getShape());
+	}
+
+	public void run() {
+		Thread t = Thread.currentThread();
+
+		while(t == gameloop) {
+			try {
+				ship.update();
+
+				Thread.sleep(20);
+			} catch(InterruptedException ie) {
+				ie.printStackTrace();
+			}
+
+			repaint();
+		}
+	}
+
+	public void keyPressed(KeyEvent ke) {
+		int keyCode = ke.getKeyCode();
+
+		if(keyCode == KeyEvent.VK_UP) { ship.setAccelerate(true); }
+		if(keyCode == KeyEvent.VK_LEFT) { ship.setTurnLeft(true); }
+		if(keyCode == KeyEvent.VK_RIGHT) { ship.setTurnRight(true); }
+	}
+	public void keyReleased(KeyEvent ke) {
+		int keyCode = ke.getKeyCode();
+
+		if(keyCode == KeyEvent.VK_UP) { ship.setAccelerate(false); }
+		if(keyCode == KeyEvent.VK_LEFT) { ship.setTurnLeft(false); }
+		if(keyCode == KeyEvent.VK_RIGHT) { ship.setTurnRight(false); }
+	}
+	public void keyTyped(KeyEvent ke) {}
+
+	public void reset() {
+		ship = new Ship(400, 300);
+	}
+}

src/spaceshipsim/SpaceShipSim.java

@@ -1,13 +1,7 @@
 package spaceshipsim;
 
 import javax.swing.*;
-import java.awt.*;
 import java.awt.event.*;
-import java.awt.geom.*;
-import java.awt.image.*;
-import java.util.*;
-
-import spaceshipsim.entities.*;
 
 /**
  * @author Nicolás A. Ortega
@@ -16,100 +10,110 @@ import spaceshipsim.entities.*;
  * @year 2014
  * 
  */
-public class SpaceShipSim extends JFrame implements Runnable, KeyListener {
-	private final String version = "v0.1";
+public class SpaceShipSim {
+	private JFrame frame;
+	private SimPanel panel;
 
-	private Thread gameloop;
-	private BufferedImage backbuffer;
-	private Graphics2D g2d;
-	private AffineTransform identity = new AffineTransform();
+	// Menu items
+	JMenuBar menuBar;
 
-	private Ship ship;
+	JMenu simulationMenu;
+	JMenuItem resetItem;
+	JMenuItem exitItem;
+
+	JMenu helpMenu;
+	JMenuItem instructionsItem;
+	JMenuItem licenseItem;
+	JMenuItem aboutItem;
 
 	// Constructor:
 	public SpaceShipSim() {
-		super("Space Ship Simulator");
-		setSize(800, 600);
-		setVisible(true);
-		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-
-		backbuffer = new BufferedImage(800, 600, BufferedImage.TYPE_INT_RGB);
-		g2d = backbuffer.createGraphics();
-
-		ship = new Ship(400, 300);
-		addKeyListener(this);
-
-		start();
+		frame = new JFrame("SpaceShipSim");
+		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		panel = new SimPanel();
+		frame.add(panel);
+		menuSetup();
+		frame.setSize(800, 600);
+		frame.setVisible(true);
 	}
 
-	public void start() {
-		gameloop = new Thread(this);
-		gameloop.start();
-	}
+	public void menuSetup() {
+		menuBar = new JMenuBar();
+		simulationMenu = new JMenu("Simulation");
+		resetItem = new JMenuItem("Reset");
+		exitItem = new JMenuItem("Exit");
+		helpMenu = new JMenu("Help");
+		instructionsItem = new JMenuItem("Instructions");
+		licenseItem = new JMenuItem("License");
+		aboutItem = new JMenuItem("About");
 
-	public void stop() { gameloop = null; }
-
-	public void paint(Graphics g) {
-		g2d.setTransform(identity);
-		g2d.setPaint(Color.BLACK);
-		g2d.fillRect(0, 0, getSize().width, getSize().height);
-
-		drawInfo();
-		drawShip();
-
-		g.drawImage(backbuffer, 0, 0, this);
-	}
-
-	private void drawInfo() {
-		g2d.setPaint(Color.WHITE);
-		g2d.drawString("Welcome to SpaceShipSim " + version, 10, 40);
-		g2d.drawString("Position: " + (int)ship.getX() + ", " + (int)ship.getY(), 10, 55);
-		g2d.drawString("Velocity (px/s): " + (int)(ship.getVelX() * 50) + ", " + (int)(ship.getVelY() * 50), 10, 70);
-		g2d.drawString("Acceleration (px/s/s): " + (int)(ship.getAccelX() * Math.pow(50, 2)) + ", " + (int)(ship.getAccelY() * Math.pow(50, 2)), 10, 85);
-		g2d.drawString("Move Angle: " + (int)ship.getMoveAngle(), 10, 100);
-		g2d.drawString("Face Angle: " + (int)(ship.getFaceAngle() - 90), 10, 115);
-	}
-
-	private void drawShip() {
-		g2d.setTransform(identity);
-		g2d.translate(ship.getX(), ship.getY());
-		g2d.rotate(Math.toRadians(ship.getFaceAngle()));
-		g2d.setColor(Color.RED);
-		g2d.fill(ship.getShape());
-	}
-
-	public void run() {
-		Thread t = Thread.currentThread();
-
-		while(t == gameloop) {
-			try {
-				ship.update();
-
-				Thread.sleep(20);
-			} catch(InterruptedException ie) {
-				ie.printStackTrace();
+		resetItem.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent ae) { panel.reset(); }
+		});
+		exitItem.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent ae) {
+				panel.stop();
+				System.exit(0);
 			}
+		});
 
-			repaint();
-		}
+		instructionsItem.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent ae) {
+				new Window("Instructions", "Accelerate: Up Arrow\n" +
+					"Turn left: Left Arrow\n" +
+					"Turn right: Right Arrow\n\n");
+			}
+		});
+		licenseItem.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent ae) {
+				new Window("License Information",
+					"SpaceShipSim v0.2, a simulation of a spaceship in a frictionless environment\n" +
+					"Copyright (C) 2014 Nicolás A. Ortega\n\n" +
+					"This program is free software: you can redistribute it and/or modify\n" +
+					"it under the terms of the GNU General Public License as published by\n" +
+					"the Free Software Foundation, either version 3 of the License, or\n" +
+					"(at your option) any later version.\n\n" +
+					"This program is distributed in the hope that it will be useful,\n" +
+					"but WITHOUT ANY WARRANTY; without even the implied warranty of\n" +
+					"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n" +
+					"GNU General Public License for more details.\n\n" +
+					"You should have received a copy of the GNU General Public License\n" +
+					"along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
+			}
+		});
+		aboutItem.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent ae) {
+				new Window("About", "SpaceShipSim v0.2\n" +
+					"Copyright (C) 2014 Nicolás A. Ortega\n" +
+					"Contact: nicolas.ortega.froysa@gmail.com\n" +
+					"Source-code: https://github.com/Deathsbreed/SpaceShipSim\n" +
+					"Developers: Nicolás Ortega\n\n");
+			}
+		});
+
+		resetItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_R, InputEvent.CTRL_MASK));
+		exitItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q, InputEvent.CTRL_MASK));
+
+
+		simulationMenu.add(resetItem);
+		simulationMenu.addSeparator();
+		simulationMenu.add(exitItem);
+
+		helpMenu.add(instructionsItem);
+		helpMenu.add(licenseItem);
+		helpMenu.addSeparator();
+		helpMenu.add(aboutItem);
+
+		menuBar.add(simulationMenu);
+		menuBar.add(helpMenu);
+
+		frame.setJMenuBar(menuBar);
 	}
 
-	public void keyPressed(KeyEvent ke) {
-		//keys[ke.getKeyCode()] = true;
-		int keyCode = ke.getKeyCode();
-
-		if(keyCode == KeyEvent.VK_UP) { ship.setAccelerate(true); }
-		if(keyCode == KeyEvent.VK_LEFT) { ship.setTurnLeft(true); }
-		if(keyCode == KeyEvent.VK_RIGHT) { ship.setTurnRight(true); }
-	}
-	public void keyReleased(KeyEvent ke) {
-		int keyCode = ke.getKeyCode();
-
-		if(keyCode == KeyEvent.VK_UP) { ship.setAccelerate(false); }
-		if(keyCode == KeyEvent.VK_LEFT) { ship.setTurnLeft(false); }
-		if(keyCode == KeyEvent.VK_RIGHT) { ship.setTurnRight(false); }
-	}
-	public void keyTyped(KeyEvent ke) {}
-
 	public static void main(String[] args) { new SpaceShipSim(); }
-}
+}

src/spaceshipsim/Window.java

@@ -0,0 +1,16 @@
+package spaceshipsim;
+
+import javax.swing.*;
+
+/**
+ * @author Nicolás A. Ortega
+ * @copyright Nicolás A. Ortega
+ * @license GNU GPLv3
+ * @year 2014
+ * 
+ */
+public class Window {
+	public Window(String title, String infoMessage) {
+		JOptionPane.showMessageDialog(null, infoMessage, title, JOptionPane.INFORMATION_MESSAGE);
+	}
+}