The game must end when the number of lives reaches zero. This can be done with this simple event :

The game should work now. You have to pay attention to the enemy torpedoes to stay alive. A few suggestions to enhance the game :

• Add new boats, the library contains a large number of them
• Find sound effects and background music
• Add new enemy tropedos
• Add submarine mines slowly falling in the bottom of the ocean

You can of course add a title and high-score screen to the game (you will find the objects ready in the library).

Thank you for following this tutorial. It has shown you how to create a scrolling game, and make sure the objects stay active even when far from the frame, how to define a complex path movement, how to create objects at random times, how to handle collisions and more.

Graphics by Oliver Pearl