Nettoyage du code. Bug majeur: impossible d'afficher deux images en même temps

src/main/java/engine/Grid.java

@@ -20,20 +20,20 @@ public class Grid extends JFrame {
         // mainPanel.setBounds(850,500,122,124);
         this.setTitle(title);
         // this.setContentPane(mainPanel);
-        this.setSize(width, height);
+        this.setMinimumSize(new Dimension(width, height));
         // this.setContentPane(mainPanel);
         this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         this.setLocationRelativeTo(null);
         this.setResizable(false);
         this.setVisible(true);
 
-        JPanel playerPanel = new JPanel();
-        this.getContentPane().add(playerPanel, BorderLayout.CENTER);
 
         kernel.start();
-        kernel.setKeysListeners(playerPanel);
+        kernel.setKeysListeners((JPanel) getContentPane());
+
+        this.pack();
+        this.revalidate();
 
-        revalidate();
     }
     public void draw(ImageComponent ic) throws IOException {
         getContentPane().add(ic);

src/main/java/engine/ImageComponent.java

@@ -17,8 +17,8 @@ public class ImageComponent extends JComponent {
         this.position = position;
         //this.setBorder(BorderFactory.createLineBorder(Color.black));
         this.setSize(width, height);
-        setVisible(true);
-        setLayout(null);
+        this.setVisible(true);
+        this.setLayout(null);
         //repaint();
     }
 
@@ -33,9 +33,8 @@ public class ImageComponent extends JComponent {
     @Override
     protected void paintComponent(Graphics g) {
         super.paintComponent(g);
-        g.setColor(Color.BLUE);
-        g.drawImage(image, position.getX(), position.getY(), width,height ,this);
+        g.drawImage(image, position.getX(), position.getY(), this.width, this.height, this);
+        //setOpaque(false);
     }
 
-
 }
\ No newline at end of file

src/main/java/engine/Kernel.java

@@ -31,7 +31,7 @@ public class Kernel {
 
         for (PongObject pongObject: PongApp.components) {
             //Coordinates2D speed = new Coordinates2D(random.nextInt(2) - 1, random.nextInt(2) - 1);
-            Coordinates2D speed = new Coordinates2D(0, 0);
+            Coordinates2D speed = new Coordinates2D(0, 1);
             pongObjectEntityHashMap.put(pongObject, new Movable(1, pongObject.getPosition(), speed, new Coordinates2D(0, 0), 1));
             grid.draw(new ImageComponent(pongObject.getImage(), pongObject.getPosition(), pongObject.getWidth(), pongObject.getHeight()));
         }

src/main/java/sprint2_demo/Grid.java

@@ -59,7 +59,7 @@ public class Grid extends JFrame {
      * @throws IOException
      */
     public void draw(Coordinates2D position, Image image, int width, int height) throws IOException {
-        getContentPane().add(new CircleComponent(100));
+        //getContentPane().add(new CircleComponent(100));
         //getContentPane().add(new ImageComponent(image, position, width, height));
     }