Adding a time bar
As time is a crucial mechanic in the game, it is necessary to keep the player aware of it. He needs to know if his allotted six seconds are about to run out. It will give him a sense of urgency as the end of the game draws near, and a sense of accomplishment if he performs well enough to maintain or increase his remaining time.
Drawing the number of seconds remaining on the screen is not easy to read (when concentrating on the branches) or a particularly interesting way to achieve the objective.
What we need is a time bar. Our time bar will be a simple red rectangle, prominently displayed on the screen. It will start off nice and wide, but rapidly shrink as time runs out. When the player's remaining time reaches zero, the time ...