GameMaker

First Step Go to GameMaker.Second Step You Think about your Theme of your Game.Next Go to Google and Search your Sprite sheet Then, Save sprite sheet After that you crop it in Power point.Next you search up your platform Next you save it Next you put you platform in your game put your person in the object.go to add event and click step, add if a position collides, set the gravity, else and set the gravity again.Go to collision with the object(block),set the vertical speed, move to contact in direction 2.go to add event and click keyboard, change sprite into your person keyboard, if a position is collision free, jump into given position.Keyboard, if there is a collision at a position, set the vertical speed.keyboard, if a position is collision free, jump to a given position.Keyboard press, change sprite into the left sprite Keyboard press, change sprite into the right sprite