Set up CardLayout for GameWindow and Scene pause/resume

1 files changed, 69 insertions, 27 deletions

diff --git a/src/GameWindow.java b/src/GameWindow.java
index d1afad4..a908a0a 100644
--- a/src/GameWindow.java
+++ b/src/GameWindow.java
@@ -2,6 +2,8 @@
 
 import java.awt.Dimension;
 import java.awt.GridLayout;
+import java.awt.CardLayout;
+import java.awt.BorderLayout;
 
 import javax.swing.JFrame;
 import javax.swing.JPanel;
@@ -10,10 +12,17 @@ import javax.swing.JButton;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 
+
 public class GameWindow extends JFrame implements ActionListener {
 	public static final Dimension WINDOW_SIZE = new Dimension(600, 400);
 
-	private JPanel menu;
+	public final String MENU_CARD = "menu";
+	public final String SCENE_CARD = "scene";
+
+	private JPanel root;
+
+	private Scene scene = null;
+	private Thread sceneThread = null;
 
 	// TODO: remove map editor, start directly on Battle mode
 	public GameWindow() {
@@ -24,28 +33,78 @@ public class GameWindow extends JFrame implements ActionListener {
 		this.setPreferredSize(WINDOW_SIZE);
 		this.setLocationRelativeTo(null);
 
+		this.initComponents();
+
+		this.add(this.root, BorderLayout.CENTER);
+		this.pack();
+		this.setVisible(true);
+	}
+
+	private void initComponents() {
+		// set up a cardlayout
+		this.root = new JPanel(new CardLayout());
+
+		// build Menu card
 		JPanel menu = new JPanel();
 		menu.setLayout(new GridLayout(3, 1));
+
 		JButton editor = new JButton("Editor");
 		editor.setActionCommand("btn-editor");
+		editor.addActionListener(this);
+
 		JButton battle = new JButton("Battle");
 		battle.setActionCommand("btn-battle");
+		battle.addActionListener(this);
+
 		JButton exit = new JButton("Exit");
 		exit.setActionCommand("btn-exit");
-
-		editor.addActionListener(this);
-		battle.addActionListener(this);
 		exit.addActionListener(this);
 		
 		menu.add(editor);
 		menu.add(battle);
 		menu.add(exit);
 
-		this.menu = menu;
+		// add cards
+		this.root.add(menu, MENU_CARD);
+	}
 
-		this.add(this.menu);
-		this.pack();
-		this.setVisible(true);
+	public void showScene(Scene scene) {
+		// the current scene is already open
+		if (scene == this.scene) {
+			((CardLayout)this.root.getLayout()).show(this.root, SCENE_CARD);
+			scene.updateCanvasSize();
+			scene.resume();
+
+			return;
+		}
+
+		// if there is an old scene
+		if (this.scene != null) {
+			// close old scene
+			this.scene.stop();
+			try {
+				this.sceneThread.join();
+			} catch (InterruptedException ex) {
+				ex.printStackTrace();
+			}
+		}
+
+		// build new thread
+		this.scene = scene;
+		this.sceneThread = new Thread(this.scene);
+
+		// add to layout
+		this.root.add(scene, SCENE_CARD);
+		((CardLayout)this.root.getLayout()).show(this.root, SCENE_CARD);
+
+		this.sceneThread.start();
+		scene.updateCanvasSize();
+		scene.resume();
+	}
+
+	public void showMenu() {
+		this.scene.pause();
+		((CardLayout)this.root.getLayout()).show(this, MENU_CARD);
 	}
 
 	@Override
@@ -65,26 +124,9 @@ public class GameWindow extends JFrame implements ActionListener {
 				scene = new BattleScene();
 			}
 
-			if (scene == null) {
-				return;
+			if (scene != null) {
+				showScene(scene);
 			}
-
-			this.getContentPane().removeAll();
-			this.getContentPane().invalidate();
-			this.getContentPane().add(scene);
-			this.getContentPane().revalidate();
-
-			scene.updateCanvasSize();
-
-			Thread sceneThread = new Thread(scene);
-			sceneThread.start();
 		}
 	}
-
-	public void backToMenu() {
-		this.getContentPane().removeAll();
-		this.getContentPane().invalidate();
-		this.getContentPane().add(this.menu);
-		this.getContentPane().revalidate();
-	}
 }