Added a MainMenu state

Mazebuilder/src/GameplayState.java

@@ -11,7 +11,7 @@
  */
 public class GameplayState extends BasicGameState {
 
-	static public final int ID = 0;
+	static public final int ID = 1;
 
 	/** Write initialization for the board here */
 	@Override
@@ -24,7 +24,7 @@ public void init(GameContainer container, StateBasedGame game)
 	@Override
 	public void render(GameContainer container, StateBasedGame game, Graphics g)
 			throws SlickException {
-        g.drawString("Hello, Mazebuilder!", 0, 100);
+        g.drawString("Hello, Mazebuilder! [Gameplay]", 50, 100);
 	}
 
 	/** Each logic step, poll inputs and compute game logic here */

Mazebuilder/src/MainMenuState.java

@@ -0,0 +1,46 @@
+import org.newdawn.slick.GameContainer;
+import org.newdawn.slick.Graphics;
+import org.newdawn.slick.SlickException;
+import org.newdawn.slick.state.BasicGameState;
+import org.newdawn.slick.state.StateBasedGame;
+
+/**
+ * The main menu loop.
+ * 
+ * @author xiao
+ */
+public class MainMenuState extends BasicGameState {
+
+	static public final int ID = 0;
+
+	private StateBasedGame game;
+
+	@Override
+	public void init(GameContainer container, StateBasedGame game)
+			throws SlickException {
+		this.game = game;
+	}
+
+	@Override
+	public void render(GameContainer container, StateBasedGame game, Graphics g)
+			throws SlickException {
+        g.drawString("Hello, Mazebuilder! [MainMenu]", 50, 100);
+	}
+
+	@Override
+	public void update(GameContainer container, StateBasedGame game, int delta)
+			throws SlickException {
+	}
+
+	@Override
+	public void mouseClicked(int button, int x, int y, int clickCount) {
+		game.enterState(GameplayState.ID);
+	}
+
+	@Override
+	public int getID() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+}

Mazebuilder/src/MazebuilderGame.java

@@ -12,6 +12,7 @@ public MazebuilderGame() {
 
 	@Override
 	public void initStatesList(GameContainer gc) throws SlickException {
+		addState(new MainMenuState());
 		addState(new GameplayState());
 	}