Generating Terrain with Open Simplex Noise

Expanding on last night's work with Open Simplex Noise. I figured the next logical step was to make a Minecraftian terrain generator, so here it is. If I ever felt compelled to build a game from the ground up, this would probably be my starting point.

Just to further explore the idea of making a game, I threw some random walkers on my random terrain to see what performance looked like. I was getting only 30FPS with 64 walkers on a relatively beefy CPU, confirming the obvious fact that Java is the wrong language for this application.