a d to move, space to jump, and f to break, e to place
beta 0.1 - added blocks and the ability to break them beta 0.1.1 - added jumping and movement beta 0.1.5 - changed controls, added terrain generation, fixed a bug where you clipped inside of blocks, and smoothed out terrain beta 0.2 added trees beta 0.2.1 - shrunk the size of the blocks to make the world bigger, also added a new crosshair that you can control with the arrow keys and break and place blocks beta 0.2.2 - made it so the crosshair can gridsnap to your mouse beta 0.2.2.1 - halfed jump height to make it less like a flappy bird game
