Stein bewegen sich im Rahmen des Spielfelds

src/Tetris/Board.java

@@ -15,7 +15,7 @@ public class Board extends JPanel implements KeyListener
   private  static int FPS =60;
   private  static int delay =FPS/1000;
 
-  public static final int BOARD_WIDTH=10;
+  public static final int BOARD_WIDTH=11;
   public static final int BOARD_HEIGHT=20;
   public static final int BLOCK_SIZE=30;
 
@@ -40,9 +40,14 @@ public class Board extends JPanel implements KeyListener
 
       @Override
       public void actionPerformed(ActionEvent e) {
-        if(System.currentTimeMillis() -beginTime > delayTime){
+        if(!(x + deltax + shape[0].length >11) && !(x + deltax<0))
+        {
           x +=deltax;
-          deltax= 0;
+        }
+
+        deltax= 0;
+        if(System.currentTimeMillis() -beginTime > delayTime){
+
           y++;
           beginTime=System.currentTimeMillis();
         }

src/Tetris/GameGui.java

@@ -3,7 +3,7 @@ import javax.swing.*;
 import java.awt.*;
 
 public class GameGui {
-    public static final int width= 500, height =650;
+    public static final int width= 550, height =650;
     private Board board;
     private JFrame frame;