HTML/JS Procedural Generator

This is a procedural generator I made for one of my games while working on them. I have put it here so anyone who wants to can try using it. I have put comments on parts where programmers may want to change the code to suit it for other tasks. If needed, I can add more and I plan on updating it to decrease the amount of time needed to generate (if you are only downloading this just to see what it does you must keep in mind that I did not add in a loading screen to keep it more bare bones) and improve its ability to generates maps of varying sizes.

Update 1: I fixed a problem causing input information to not work correctly in the calculations so now the generator can output terrain at different scales.

Any and all feedback is much appreciated.