In traditional platformer games you would have a rectangular room where the player can move left or right. And depending on which direction you move in, more of the level will be revealed to you, as you go. How do I do that in gamemaker? As of right now, I just have a square room for a level. Where the player will fall to her death, if she gets too close to the edge. Thanks in advance! Can't wait to get to know you all.