Earlier on in my course, I was the lead programmer on a game maker project. In groups of 3 we made a full game in gamemaker 8.1. My group made a kind of Metroid remake
I coded the most of this game, with a few features added by other people.
The main features that I worked on was the different upgrades and the enemies, including the boss
One of the upgrades was a double jump. I used the inbuilt GameMaker Drag and Drop to make this upgrade
This part of the code checks if a double jump is feasible, using can_double to ensure that only 1 airborne jump is possible.
Robert Williams 