I need to understand the basis of this program but I cant figure out how this work. I created a lot of minigames with Game Maker and swited to GE because Linux support. Lets say In Gm I have a lot of rooms and its so easy to make things organizated. How can I start making a game with GE? Thinks like 'fisical response' when I get a collision... As an example how can I, using a script, stop my char walking after striking on a wall? I want to make a moving platform too

Please I need a light!