Chess::Piece::Pawn - a class representing a pawn in a chess game
$pawn = Chess::Piece::Pawn->new("e2", "White King's pawn");
$true = $pawn->can_reach("e4");
$true = $pawn->can_reach("e3");
$true = $pawn->can_reach("f3");
$false = $pawn->can_reach("e5");
$queen = $pawn->promote("queen");
The Chess module provides a framework for writing chess programs with Perl. This class is part of that framework, representing a pawn in a the Chess::Game manpage.
new()
Constructs a new Chess::Piece::Pawn. Requires a two scalar parameters containing the square on which the pawn is to be constucted and its color, Optionally takes a third parameter containing a text description of the pawn.
$pawn = Chess::Piece::Pawn->new("d2", "white");
$pawn = Chess::Piece::Pawn->new("e2", "white",
"White King's pawn");
There are no class methods for this class.
reachable_squares()
Overrides base class version. Returns a list of squares that this pawn can reach from its current position. See reachable_squares() in the Chess::Piece manpage for more details on this method.
promote()
Takes a parameter containing the type of piece to promote to. Returns itself blessed as that type of piece. Returns undef and produces a warning (see DIAGNOSTICS if the piece is not one of 'bishop', 'knight', 'queen' or 'rook'.
You may only promote a pawn to a 'bishop', 'knight', 'queen' or 'rook'.
Please report any bugs to the author.
Brian Richardson <bjr@cpan.org>
Copyright (c) 2002, 2005 Brian Richardson. All rights reserved. This module is Free Software. It may be modified and redistributed under the same terms as Perl itself.