1.18.10 Run, program, run
This section contains expressions that start
the Chat Noir game going.
First, here is a function to compute the state of the world at the start of a game.
|(define board-size 11)|
| (define initial-board|
| (empty-board board-size)|
| (make-world initial-board|
| (make-posn (quotient board-size 2)|
| (quotient board-size 2))|
Finally, we can define and provide a function to start the game
by calling big-bang with the appropriate arguments.