First pass with game loop and first player on the screen drawn
 now first player on the screen drawn
introduced AI on the screen
introduced a square ball in the game
black background with context save and restore
introduced net
added event listeners to player paddle
ball moving effect on the net
ball is now moving between paddles when touching either of paddle.implemented intersect function
now ball can move in a angle depending on where it touch the paddle
don't expect logger to be present in jsfiddle for e.g. for quick test
impossible to beat AI here
Can win against AI now
can smash ball if ball hit paddle corners
A basic serve system added
better serve and paddle fixed.