finish Q5b

src/Q5.java

@@ -43,6 +43,8 @@ public class Q5 extends AbstractGame {
     //      see Ball.java
     private Ball ball = new Ball();
 
+    // (b) When the player is within 20 pixels of the ball, the ball should move to another random position.
+
     public static void main(String[] args) {
         new Q5().run();
     }
@@ -60,6 +62,11 @@ public class Q5 extends AbstractGame {
                 playerY += STEP_SIZE * this.playerDirectionY;
                 System.out.println(df.format(playerX) + "," + df.format(playerY));
             }
+
+            // (b)
+            if (new Point(playerX, playerY).distanceTo(ball.getPosition()) <= SCORE_DISTANCE) {
+                ball.resetPosition();
+            }
         }
 
         playerImage.draw(playerX, playerY);