Pong game created in ROS.
Only contains code which simulates a point ball moving in a constrained space.
Tested on Ubuntu 17.04 running ROS Lunar
Launch pong ball rosnode with
roslaunch pong_ball pong_ball.launch
Open Rviz to view ball marker. Configure fixed frame in Rviz to "/ball_frame" and add marker which subscribes to "/pong_ball/ball_visualization"
The view should look like: