Move the variable slider to change the angle, number of branches, and branch length. Tip: to create big trees faster, turn on turbo mode by clicking the green flag while holding the Shift key. If the pen touches the side, you will receive an error as Scratch does not allow sprites to go out of the screen and that will mess up the angles. Every time you modify a variable the process will restart.
This features a recursive function (or "My block"), a function that calls itself. As you can see, the tips of the branches are little forks, which are part of bigger forks, and bigger forks! All you need is a parameter (or "My block variable") that controls how many times the function can call itself, so it doesn't keep on going forever.
