update

src/main/java/PingPong/Ball.java

@@ -4,8 +4,12 @@ import java.awt.*;
 
 public class Ball extends Rectangle {
 int xVelocity;
+int yVelocity;
     public void setXDirection (int randomXDirection){
         xVelocity = randomXDirection;
     }
+    public void setYDirection (int randomYDirection){
+        yVelocity = randomYDirection;
+    }
 
 }