//
// Game elements still todo
//
// 1) gravity
// 2) 1d scrollling
// 3) 2d world description
// 4) 3d world pieces created from 2d world
// 5) player sprites
// 6) mouse / cursor key control
// 7) moving platforms
// 8) 100 levels
// 9) player movement
//10) large world changes
//11) the exit
//12) game over