Add speed control and speed panel

src/KeyboardListener.java

@@ -24,6 +24,10 @@ public void keyPressed(KeyEvent e){
 							if(ThreadsController.directionSnake!=3)
 								ThreadsController.directionSnake=4;
 		    				break;
+
+				case KeyEvent.VK_SPACE:   // -> space
+                    Window.controller.toggleSpeed();
+                    break;
 
 		    	default: 	break;
  		    }

src/ThreadsController.java

@@ -6,7 +6,9 @@ public class ThreadsController extends Thread {
 	 ArrayList<ArrayList<DataOfSquare>> Squares= new ArrayList<ArrayList<DataOfSquare>>();
 	 Tuple headSnakePos;
 	 int sizeSnake=3;
-	 long speed = 50;
+	 int speedLevel = 1; // 1:slow, 2:mid, 3:fast
+     long[] speedTable = {150, 80, 30}; 
+	 long speed = 150;
 	 public static int directionSnake ;
 
 	 ArrayList<Tuple> positions = new ArrayList<Tuple>();
@@ -39,6 +41,13 @@ public void run() {
 			 pauser();
 		 }
 	 }
+
+	public void toggleSpeed() {
+        speedLevel = speedLevel % 3 + 1;
+        speed = speedTable[speedLevel - 1];
+        Window.currentSpeedLevel = speedLevel;
+		Window.instance.repaint(); 
+    }
 
 	 //delay between each move of the snake
 	 private void pauser(){

src/Window.java

@@ -1,17 +1,23 @@
-import java.awt.GridLayout;
+import java.awt.*;
 import java.awt.event.KeyListener;
 import java.util.ArrayList;
 
 import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
 
 
 class Window extends JFrame{
 	private static final long serialVersionUID = -2542001418764869760L;
 	public static ArrayList<ArrayList<DataOfSquare>> Grid;
 	public static int width = 20;
 	public static int height = 20;
+	public static int currentSpeedLevel = 1;
+	public static ThreadsController controller;
+	public static Window instance;
+	private JLabel speedLabel;
 	public Window(){
-
+		instance = this;
 
 		// Creates the arraylist that'll contain the threads
 		Grid = new ArrayList<ArrayList<DataOfSquare>>();
@@ -26,23 +32,35 @@ public Window(){
 			}
 			Grid.add(data);
 		}
+
+		this.setLayout(new BorderLayout());
+
+		speedLabel = new JLabel("Speed: " + currentSpeedLevel);
+        speedLabel.setFont(new Font("Arial", Font.BOLD, 18));
+        speedLabel.setBorder(javax.swing.BorderFactory.createEmptyBorder(5, 10, 5, 0));
+        this.add(speedLabel, BorderLayout.NORTH);
+
+		JPanel gamePanel = new JPanel();
+        gamePanel.setLayout(new GridLayout(20, 20, 0, 0));
 
-		// Setting up the layout of the panel
-		getContentPane().setLayout(new GridLayout(20,20,0,0));
+		// // Setting up the layout of the panel
+		// getContentPane().setLayout(new GridLayout(20,20,0,0));
 
 		// Start & pauses all threads, then adds every square of each thread to the panel
 		for(int i=0;i<width;i++){
 			for(int j=0;j<height;j++){
-				getContentPane().add(Grid.get(i).get(j).square);
+				gamePanel.add(Grid.get(i).get(j).square);
 			}
 		}
+
+		this.add(gamePanel, BorderLayout.CENTER);
 
 		// initial position of the snake
 		Tuple position = new Tuple(10,10);
 		// passing this value to the controller
-		ThreadsController c = new ThreadsController(position);
+		controller = new ThreadsController(position);
 		//Let's start the game now..
-		c.start();
+		controller.start();
 
 		// Links the window to the keyboardlistenner.
 		this.addKeyListener((KeyListener) new KeyboardListener());
@@ -54,4 +72,15 @@ public Window(){
 		//c2.start();
 
 	}
+
+	public void updateSpeedLabel() {
+        speedLabel.setText("Speed: " + currentSpeedLevel);
+    }
+	// @Override
+    // public void paint(Graphics g) {
+    //     super.paint(g);
+    //     g.setColor(Color.BLACK);
+    //     g.setFont(new Font("Arial", Font.BOLD, 18));
+    //     g.drawString("Speed: " + currentSpeedLevel, 10, 25);
+    // }
 }