GameMaker tutorial / lesson with completed project files at http://www.gameprogrammingcourse.com in the RESOURCES section.
How to code screen wrap. When objects move off the screen make them wrap to other side of screen. Example used is a simple space game with space ship in motion. Part 2 of a space game series.
Check out hundreds of other GameMaker tutorials and lessons at GameProgrammingCourse.com .All these gamemaker tutorials will work with Gamemaker Studio GMS or Gamemaker Studio 2 GMS.
Go to the Resource Page of http://www.gameprogrammingcourse.com to download the Project Files for these tutorials!