#! perl

use strict;
use Games::Mines::Play;
use Getopt::Long;

=head1 NAME

pmines - mine finder game.

=head1 SYNOPSIS

B<pmines> [B<--small>|B<--medium>|B<--large>] [B<--width>] [B<--height>] [B<--mines>] . . .

=head1 DESCRIPTION

Plays a text version the a mine finding game.

=head1 OPTIONS AND ARGUMENTS

=over 8

=item B<--small>|B<--medium>|B<--large>

Starts with a small, medium or large field. The small field is 8x8 
with 10 mines, the medium field is 16x16 with 40 mines, and the 
large field is 16x30 with 99 mines.

=item B<--width> B<--height> B<--mines>

Set the width, height or number of mines used in this game. 
Not that this can be combined with the B<--small>|B<--medium>|B<--large>
to adjust only one component of the field.

=item B<--color>

Use ANSI color field. Will be quietly ignored on systems that don't 
have the Term::ANSIColor module.

=back

=head1 PLAYING

When you start the game you are presented with a blank square and and a prompt. You play the game by entering a command at he prompt:

=over 8

=item I<row> I<col>

Step on the square located at I<row> I<col>.

=item B<f> I<row> I<col>

Place a flag at I<row> I<col>.

=item u I<row> I<col>

Remove a flag at I<row> I<col>.

=item s I<game>

Save game as game number I<game>

=item l I<game>

load game numerb I<game>

=item q

Quit the game and show the solution.

=back

=cut

my($save_file) = "./pmines.sav";

my(%opt);
GetOptions( \%opt,
	    'small','medium','large',
	    'width=i','height=i','mines=i',
	    'color');

my (@defs) = Games::Mines::Play->default(%opt);

my $game = Games::Mines::Play->new(@defs);

if($opt{'color'}) {
    $game->set_ANSI_Color;
}

my(@input);
{
    my($loaded)=0;
    $game->print_out("field");
    $game->print_status_line;
    
    print "Command: ";
    my $line=<STDIN>;
    $line =~s/\s*$//;
    $line =~s/^\s*//;
    redo unless($line);
    (@input) = split(/\W+/,$line);
    
    redo if(@input >3);

    my($cmd)='';
    if($input[0] =~/\D/) {
	$cmd = shift @input;
    }
    if( $cmd eq 'q') {
	$game->fill_mines(); # need to show them something
	last;
    }
    elsif($cmd eq 's') {
        warn "Can't save a game that hasn't started\n";
	redo;
    }
    elsif($cmd eq 'l') {
	my($number) = 1;
	if(@input && $input[0] =~/\d+/ ) {
	    $number = $input[0];
	}
	$game->load_game($save_file,$number);
	$loaded=1;
    }
    if($cmd eq 'f') {
	redo unless(  @input == 2 && $input[0] =~/\d+/ && $input[1] =~/\d+/ );
	$game->flag(@input);
	redo;
    }
    
    unless($loaded) {
	redo unless(  @input == 2 && $input[0] =~/\d+/ && $input[1] =~/\d+/ );
	$game->fill_mines([@input]);
	$game->step(@input);
    }
    
    while( $game->running ) {
	
	$game->print_out("field");
	$game->print_status_line;

	print "Command: ";
	$line=<STDIN>;
	$line =~s/\s*$//;
	$line =~s/^\s*//;
	redo unless($line);

	(@input) = split(/\W+/,$line);
	
	redo if(@input >3);
	
	my($cmd)='';
	if($input[0] =~/\D/) {
	    $cmd = shift @input;
	}
	if( $cmd eq 'q') {
	    last;
	}
	elsif($cmd eq 's') {
	    my($number) = 1;
	    if(@input && $input[0] =~/\d+/ ) {
		$game->save_game($save_file,$input[0]);
	    }
	    else {
		$game->save_game($save_file);
	    }
	    last;
	}
	elsif($cmd eq 'l') {
	    my($number) = 1;
	    if(@input && $input[0] =~/\d+/ ) {
		$number = $input[0];
	    }
	    $game->load_game($save_file,$number);
	    redo;
	}
	redo unless(   @input == 2 && $input[0] =~/\d+/ && $input[1] =~/\d+/);
	if($cmd eq 'f') {
	    $game->flag(@input);
	}
	elsif($cmd eq 'u') {
	    $game->unflag(@input);
	}
	else {
	    $game->step(@input);
	}
    }
    
}
$game->print_out("check");
$game->print_status_line;


=head1 FILES

pmines.sav - file that games are saved into.

=head1 SEE ALSO

Games::Mines and Games::Mines::Play for more details.

=head1 AUTHOR

Martyn W. Peck <mwp@mwpnet.com>

=head1 BUGS

None known. But if you find any, let me know.

=head1 COPYRIGHT

Copyright 2003, Martyn Peck. All Rights Reserves.

This program is free software. You may copy or redistribute 
it under the same terms as Perl itself.

=cut

1;