Rocket to the Moon

Cars go forward, but rockets go UP. Mission control needs a rocket on the launch pad and a countdown shout as it leaves the ground.

flyUp("rocket", 200)

1. 1Roll out the rocket

   Put a rocket on the launch pad with the first line.

   createVehicle("rocket")

2. 2Fly upward

   Add flyUp with 200 steps. Notice it goes up the screen, not sideways.

3. 3Shout to mission control

   Add a say line so the rocket calls out as it launches.