Board in gui eingepackt

src/Tetris/Board.java

@@ -9,7 +9,8 @@ import javax.swing.Timer;
 public class Board extends JPanel
 {
   public static final int BOARD_WIDTH=10;
-  public static final int BOARD_HEIGHT =20;
+  public static final int BOARD_HEIGHT=20;
+  public static final int BLOCK_SIZE=30;
   private Timer loop;
   private Color[][] board = new Color[BOARD_WIDTH][BOARD_HEIGHT];
 
@@ -28,9 +29,16 @@ public class Board extends JPanel
   @Override
   protected void paintComponent(Graphics g) {
     super.paintComponent(g);
-    g.setColor(Color.blue);
     g.fillRect(0,0,getWidth(),getHeight());
-    g.setColor(Color.black);
-    g.drawRect(10,10,200,200);
+    g.setColor(Color.DARK_GRAY);
+
+    for(int row= 0; row< BOARD_HEIGHT;row++)
+    {
+      g.drawLine(0, BLOCK_SIZE * row, BLOCK_SIZE * BOARD_WIDTH, BLOCK_SIZE * row);
+    }
+    for(int col= 0; col< BOARD_WIDTH +1; col++)
+    {
+      g.drawLine(col * BLOCK_SIZE, 0, col * BLOCK_SIZE, BLOCK_SIZE * BOARD_HEIGHT);
+    }
   }
 }