Next piece in gui
Add sounds (mostly for losing, winning and clearing a row)
Also add a pause
Have a menu
Add to score on line clear

redo input system.  Feels good
Implement win condition and lose condition
Colored blocks
Grey blocks when dead
Gets faster the more lines you clear
Multiline bonus
If the piece placed has bits above the top, end game
Fix aspect ratio to 1:1

Import pieces from files to make it data driven
Refactor getting 2d array from piece area
    Make it a pointer to the values in the area