use strict;
use Tk;
use Tk::Button;
use Tk::Canvas;
use Tk::Photo;
use Tk::Splashscreen;
#use fileoprn;
require Tk::Splash;
#####################
my @filearray;

opendir( DIR, 'images' ) or die "Can't open images DIR $!";
while ( my $entry = readdir( DIR ) ) {
        my $type = ( -d "images\\$entry" ) ? "dir" : "file"; 
        push @filearray, "images\\$entry" if (($type eq "file") && ($entry =~ /\.gif$/));
        #print "$type\t$entry\t@filearray\n";
    }
closedir( DIR );
@filearray = (@filearray,@filearray);
####################
fisher_yates_shuffle(\@filearray);
unshift @filearray, "NIL";

#foreach (@filearray) {print $_,"\n";};
my @arranged_gifs;

my $top = new MainWindow();
my $loop_cntr=0;
my $state_of_button=-1;
my $prev_x = undef;
my $prev_y = undef; 
my $number_of_clicks=0;
my $prev_clicked_button=undef;
my $button_width= 10;
my $button_height= 3;
foreach my $x (1..10)
{

	for my $y (1..7)
	{
		$loop_cntr++;
		$arranged_gifs[$x][$y]= $filearray[$loop_cntr];
		#print "$loop_cntr:$x:$y:-".$arranged_gifs[$x][$y]."\t".$filearray[$loop_cntr]."\n";
		my $button = $top->Button(-width => $button_width,-background=>'yellow', -height =>$button_height,-command=>sub{click_button($x,$y,\$top->gridSlaves(-row=>$x,-column=>$y), \$prev_clicked_button)});
		$button->configure(-text=>'Hey');
		$button->grid(-row =>$x , -column =>$y);
	}
}


sub click_button($$$){
	my ($myx,$myy,$clicked_button,$prev_clicked_button)=@_;
	if (!${$clicked_button}->cget(-image))
	{
		$number_of_clicks++;
		my $mywait;
		my $image = $top->Photo(-format => 'gif' , -file=>$arranged_gifs[$myx][$myy]);
		${$clicked_button}->configure(-width => 50, -height =>40, -image=>$image);
		if ($number_of_clicks == 1)
		{
			print "Hello\n";
			${$prev_clicked_button} = ${$clicked_button};
		}
		if ($number_of_clicks == 2)
		{
			print "pair\n";
			#sleep(2);
			$number_of_clicks=0;
			
			print "#".$arranged_gifs[$myx][$myy]."#". $arranged_gifs[$prev_x][$prev_y]."\n";
			if ($arranged_gifs[$myx][$myy] ne $arranged_gifs[$prev_x][$prev_y])
			{
				${$prev_clicked_button} -> after (250, [\&hide, ${$prev_clicked_button} ]);
				${$clicked_button}      -> after (250, [\&hide, ${$clicked_button}]);
	
			}
			else
			{
				print "Got it\n";
			}
	
		}
	
		$prev_x = $myx;
		$prev_y = $myy;
	}	

}

sub hide {
    shift -> configure (-width => $button_width, -height =>$button_height, -state=>'normal',-image => undef);
}

sub fisher_yates_shuffle {
    my $array = shift;
    my $i;
    for ($i = @$array; --$i; ) {
        my $j = int rand ($i+1);
        next if $i == $j;
        @$array[$i,$j] = @$array[$j,$i];
    }
}

MainLoop;