"Vsync" simulado para evitar el shutering

src/main/java/net/h4ckx0r/Arkanoid.java

@@ -142,7 +142,7 @@ public class Arkanoid {
                     for (Actor actor : actores) {
                         actor.actua();
                     }
-                    canvas.repaint();
+                    canvas.pintar();
                 }
 
                 long tiempoTranscurrido = new Date().getTime() - tiempoInicio;

src/main/java/net/h4ckx0r/MiCanvas.java

@@ -3,11 +3,14 @@ package net.h4ckx0r;
 import net.h4ckx0r.actores.Actor;
 
 import java.awt.*;
+import java.awt.image.BufferStrategy;
 import java.util.List;
 
 public class MiCanvas extends Canvas {
     List<Actor> actores = null;
 
+    private BufferStrategy strategy = null;
+
     private int[][] estrellitas = null;
 
     public MiCanvas(List<Actor> actores) {
@@ -24,9 +27,18 @@ public class MiCanvas extends Canvas {
         }
     }
 
-    @Override
-    public void paint(Graphics g) {
-        this.setBackground(Color.BLACK);
+    public void pintar() {
+
+        if (this.strategy == null) {
+            this.createBufferStrategy(2);
+            strategy = getBufferStrategy();
+            Toolkit.getDefaultToolkit().sync();
+        }
+
+        Graphics2D g = (Graphics2D) strategy.getDrawGraphics();
+
+        g.setColor(Color.BLACK);
+        g.fillRect(0,0, this.getWidth(), this.getHeight());
 
         for (int[] estrella : estrellitas) {
             g.setColor(Color.GRAY);
@@ -36,6 +48,8 @@ public class MiCanvas extends Canvas {
         for (Actor actor : actores) {
             actor.paint(g);
         }
+
+        strategy.show();
     }