Snake:initial commit.
Snake: build the yard.
Snake:private ---> public
Snake: the first snake has been draw out.
Snake: addToTail() & addToHead().
Snake: double buffer & thread to repaint.
Snake: snake moves.
Snake : easy to control.
Snake : draw the egg.
Snake : eggs, hmmm, yummy!!!
Snake: L/R     ||     U/D
Snake : "Game over"
Snake: just fix.
Snake : the "Score : "
Snake: a little bug fixed.
Snake : another stupid bug.
Snake: Give the player "Game Over" message.
Snake: restart the game with F2.
Snake: game over when snake head hit the body.
Snake: handle the warnings.