#!/usr/bin/env perl
#
# graywin.pl
#
# Copyright (C) 2005 David J. Goehrig <dgoehrig@cpan.org>
#
# ------------------------------------------------------------------------------
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# 
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
#
# ------------------------------------------------------------------------------
#
# Please feel free to send questions, suggestions or improvements to:
#
#	David J. Goehrig
#	dgoehrig@cpan.org
#

use SDL;
use SDL::App;
use SDL::Rect;
use SDL::Event;
use SDL::Color;

my %options;
$options{-flags} = SDL::SWSURFACE;
$options{-title} = $0;
$options{-width} ||= 640;
$options{-height} ||= 480;
$options{-depth} ||= $options{-bpp} || 8;

my $app = new SDL::App %options;

sub DrawBox {
	my ($x,$y) = @_;

	my ($w, $h) = ( int(rand(640)), int(rand(480)) );
	
	my $rect = new SDL::Rect -width => $w, -height => $h, 
			-x => ($x - int($w/2)), -y => ($y - int($h/2));
	
	my $color = new SDL::Color -r => rand(256), -g => rand(256), -b => rand(256);

	$app->fill($rect,$color);
	$app->update($rect);
};

$app->loop( {
	SDL_MOUSEBUTTONDOWN() => sub { 
		my ($event) = @_; 
		DrawBox($event->button_x(),$event->button_y()); 
		},
	SDL_KEYDOWN() => sub { 
		my ($event) = @_;
		$app->warp($options{-width}/2,$options{-height}/2) 
			if ($event->key_sym() == SDLK_SPACE);
		$app->fullscreen()
			if ($event->key_sym() == SDLK_f);
		exit(0) if ($event->key_sym() == SDLK_ESCAPE);	
		},
	SDL_QUIT() => sub { exit(0); }
} );