/test/graywin.pl

 1#!/usr/bin/perl
 2
 3use strict;
 4use warnings;
 5
 6use SDL ':init';
 7use SDL::Video ':all';
 8use SDL::Events ':all';
 9use SDL::Rect;
10use SDL::Event;
11use SDL::Surface;
12
13SDL::init(SDL_INIT_VIDEO);
14
15my $width  = 800;
16my $height = 600;
17
18my $screen_surface = SDL::Video::set_video_mode( $width, $height, 32, SDL_SWSURFACE );
19
20my $event = SDL::Event->new;
21
22while (1) {
23
24	while ( SDL::Events::poll_event($event) ) {
25		exit(0) if $event->type == SDL_QUIT;
26
27		if ( $event->type == SDL_MOUSEBUTTONDOWN ) {
28
29			my $mapped_color = SDL::Video::map_RGB(
30				$screen_surface->format(), rand_color(),
31				rand_color(),              rand_color()
32			);
33
34			SDL::Video::fill_rect(
35				$screen_surface,
36				SDL::Rect->new( $event->button_x, $event->button_y, 20, 10 ),
37				$mapped_color
38			);
39
40		}
41
42	}
43
44	SDL::Video::update_rect( $screen_surface, 0, 0, $width, $height );
45	SDL::delay(20);
46}
47
48sub rand_color {
49	return int( rand(256) );
50}