Tetris

Single player whirledly Tetris. Thanks to: Pachirisu for helping out, Richard Lord for the original Tetris code, and BBR for suggesting the idea.

Instructions
It's Tetris. Rotate the pieces and the try to make a complete line. You score 25 points per line completed, plus bonus points for completing multiple lines with a single piece.

S or K rotates clockwise. I, W, or Up rotates counter-clockwise if you live in the US and anti-clockwise in other English-speaking countries. If you wish to reverse this, push the button. It will remember your setting for future games.

There are a couple of known issues right now:
 * 1) You have to click after you start the game for the keys to work. I'm trying to fix this, but I haven't figured out how.  It's a problem with Whirled.
 * 2) The pieces don't always rotate if they're at the top or the sides if the rotation would cause the piece to bump the top or sides. This is a bug in the original code.  I'll get this fixed once I figure out how to.  It's always tougher to fix someone else's code.  Still, I can't complain too much since he was nice enough to make it available for stuff like this to begin with.