/[VRac]/Screen.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 76 by dpavlin, Wed Aug 1 12:57:15 2007 UTC revision 101 by dpavlin, Thu Aug 2 17:15:07 2007 UTC
# Line 14  use Carp qw/confess/; Line 14  use Carp qw/confess/;
14  use Data::Dump qw/dump/;  use Data::Dump qw/dump/;
15    
16  use base qw(Class::Accessor Prefs);  use base qw(Class::Accessor Prefs);
17  __PACKAGE__->mk_accessors(qw(app));  __PACKAGE__->mk_accessors(qw(app event));
18    
19  =head1 NAME  =head1 NAME
20    
# Line 46  sub open_screen { Line 46  sub open_screen {
46          #$app->grab_input( SDL_GRAB_QUERY );          #$app->grab_input( SDL_GRAB_QUERY );
47          $app->grab_input( SDL_GRAB_OFF );          $app->grab_input( SDL_GRAB_OFF );
48    
         warn "# created SDL::App\n";  
49          $self->app( $app );          $self->app( $app );
50    
51            my $event = SDL::Event->new();
52            $self->event( $event );
53    
54            warn "# created SDL::App\n";
55  }  }
56    
57  my $white       = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff );  my $white       = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff );
# Line 235  sub render_mem { Line 239  sub render_mem {
239          $app->sync;          $app->sync;
240  }  }
241    
242    =head2 key_pressed
243    
244    Check SDL event loop if there are any pending keys
245    
246      my $key = $self->key_pressed;
247    
248      if ( $self->key_pressed( 1 ) ) {
249            # just to check other events, don't process
250            # key
251      }
252    
253    =cut
254    
255    my $pending_key;
256    my $run_for = 2000;
257    
258    sub key_pressed {
259            my $self = shift;
260    
261            # don't take key, just pull event
262            my $just_checking = shift || 0;
263    
264            my $event = $self->event || confess "no event?";
265    
266            $event->poll || return $pending_key;
267    
268            my $type = $event->type();
269    
270            exit if ($type == SDL_QUIT);
271    
272            my $k = $pending_key;
273    
274            if ($type == SDL_KEYDOWN) {
275                    $k = $event->key_name();
276                    if ( $k eq 'escape' ) {
277                            $run_for = $self->cli;
278                            warn "will check event loop every $run_for cycles\n";
279                            $pending_key = '~';
280                    } else {
281                            warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n";
282                            $pending_key = $k;
283                    }
284            } elsif ( $type == SDL_KEYUP ) {
285                    my $up = $event->key_name();
286                    warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n";
287                    undef $pending_key;
288            }
289    
290            warn "key_pressed = $pending_key\n" if $pending_key;
291    
292            return $pending_key;
293    }
294    
295    =head2 loop
296    
297    Implement SDL event loop
298    
299    =cut
300    
301    sub loop {
302            my $self = shift;
303            my $event = SDL::Event->new();
304    
305    
306            MAIN_LOOP:
307            while ( 1 ) {
308                    $self->key_pressed( 1 );
309                    M6502::exec($run_for);
310            }
311    }
312    
313  =head1 SEE ALSO  =head1 SEE ALSO
314    
315  L<Orao> is sample implementation using this module  L<Orao> is sample implementation using this module
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