When you click the green flag a prompt will appear where you can type in what you want. If you want to use this engine in your game, you can, but please credit me. NOTE: YOU NEED SOMEWHAT DECENT CODING EXPERIENCE
This was mostly just tedious, copy and paste work. It's not like its technically challenging to do any of this, but I wouldn't want to do this first thing when setting up a text adventure game. If you feel the same way, I hope I helped you.
