Implemented the timer function

Signed-off-by: Ricky Barrette <rickbarrette@gmail.com>

Asteroids/src/com/RickBarrette/asteroids/AsteroidGame.java

@@ -32,6 +32,7 @@ public class AsteroidGame extends Thread {
 	private final ArrayList<Object> mWorld;
 	private final GameFrame mGameFrame;
 	public boolean isStarted = false;
+	private long mLastTime;
 
 	/**
 	 * Creates an new Asteroids game 
@@ -222,6 +223,12 @@ public class AsteroidGame extends Thread {
 		while (true){
 			if(isStarted) {
 				
+				/*
+				 * increment time
+				 */
+				mGameFrame.getStatusBar().incrementTime(System.currentTimeMillis() - mLastTime);
+				mLastTime = System.currentTimeMillis();
+				
 				/*
 				 * update the display and stats
 				 */
@@ -317,6 +324,7 @@ public class AsteroidGame extends Thread {
 	 * @author ricky barrette
 	 */
 	public synchronized void startGame(){
+		mLastTime = System.currentTimeMillis();
 		mGameFrame.setDisplayText(null);
 		setMovingSpaceObjectsEnabled(true);
 		isStarted = true;	

Asteroids/src/com/RickBarrette/asteroids/Status.java

@@ -204,6 +204,18 @@ public class Status extends JPanel {
 		this.mTime += mTime;
 	}
 	
+	/**
+	 * convince method for formating the seconds string
+	 * @param seconds
+	 * @return formated string
+	 * @author ricky barrette
+	 */
+	private String padTime(int time){
+		if (time <= 9)
+			return "0"+ time;
+		return ""+ time;
+	}
+	
 	/**
 	 * @param mAsteroidCount the mAsteroidCount to set
 	 */
@@ -246,6 +258,21 @@ public class Status extends JPanel {
 		this.mTime = mTime;
 	}
 
+	/**
+	 * convince method for formating milliseconds into hour : minutes format
+	 * @param mills
+	 * @return human readable hour : minutes format
+	 * @author ricky barrette
+	 */
+	private String stringTime(long mills){
+		int hours = (int) (mills / 3600000);
+		mills = mills - (hours * 3600000);
+		int minutes = (int) ( mills / 60000);
+		int seconds = (int) (mills % 60000);
+		seconds = seconds / 1000;
+		return hours +" : "+ padTime(minutes) +" : "+ padTime(seconds);
+	}
+	
 	/**
 	 * Sets the status
 	 * @param temp
@@ -263,7 +290,7 @@ public class Status extends JPanel {
 		mBuffer.append("       Score: ");
 		mBuffer.append(getScore());
 		mBuffer.append("       Time: ");
-		mBuffer.append(getTime());
+		mBuffer.append(stringTime(getTime()));
 		status.setText(mBuffer.toString());
 		mBuffer = new StringBuffer();
 	}