NAME AI::Evolve::Befunge::Physics::ttt - a tic tac toe game

SYNOPSIS

my $ttt = AI::Evolve::Befunge::Physics->new('ttt');

DESCRIPTION

This is an implementation of the "ttt" game ruleset. It is implemented as a plugin for the AI::Evolve::Befunge Physics system; essentially an AI creature exists in a "tic tac toe" universe, and plays by its rules.

CONSTRUCTOR

Use AI::Evolve::Befunge::Physics->new() to get a ttt object; there is no constructor in this module for you to call directly.

METHODS

setup_board

$ttt->setup_board($board);

Initialize the board to its default state. For tic tac toe, this looks like:

...
...
...

valid_move

my $valid = $ttt->valid_move($board, $player, $pos);

Returns 1 if the move is valid, 0 otherwise. In tic tac toe, all places on the board are valid unless the spot is already taken with an existing piece.

won

my $winner = $ttt->won($board);

If the game has been won, returns the player who won. Returns 0 otherwise.

over

my $over = $ttt->over($board);

Returns 1 if no more moves are valid from either player, and returns 0 otherwise.

score

my $score = $ttt->score($board, $player, $number_of_moves);

Return a relative score of how the player performed in a game. Higher numbers are better.

can_pass

my $can_pass = $ttt->can_pass($board, $player);

Always returns 0; tic tac toe rules do not allow passes under any circumstances.

make_move

$next_player = $ttt->make_move($board, $player, $pos)
    if $ttt->valid_move($board, $player, $pos);

Makes the given move, updates the board with the newly placed piece.