/[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!
ViewVC logotype

Diff of /Screen.pm

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 152 by dpavlin, Sun Aug 5 15:24:22 2007 UTC revision 171 by dpavlin, Mon Aug 6 11:40:21 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 Exporter 'import';  use Exporter 'import';
17  our @EXPORT = qw'$white $black';  our @EXPORT = qw'$white $black @flip';
18    
19  use base qw(Class::Accessor Prefs);  use base qw(Class::Accessor Prefs);
20  __PACKAGE__->mk_accessors(qw(app event));  __PACKAGE__->mk_accessors(qw(app event));
# Line 23  __PACKAGE__->mk_accessors(qw(app event)) Line 23  __PACKAGE__->mk_accessors(qw(app event))
23    
24  Screen - simulated 256*256 pixels monochrome screen using SDL  Screen - simulated 256*256 pixels monochrome screen using SDL
25    
26    =head1 Architecture dependent
27    
28    You may override following methods if you want to implement keyboard on each
29    keypress event. Alternative is to use <read> hook and trap memory access.
30    
31    =head2 key_down
32    
33      $self->key_down( 'a' );
34    
35    =cut
36    
37    sub key_down {}
38    
39    =head2 key_up
40    
41      $self->key_up( 'a' );
42    
43    =cut
44    
45    sub key_up {}
46    
47    
48    =head1 Architecture independent
49    
50    You don't need to override any of following function in your architecture,
51    but you might want to call them.
52    
53  =head2 open_screen  =head2 open_screen
54    
55  Open simulated screen  Open simulated screen
# Line 49  sub open_screen { Line 76  sub open_screen {
76          );          );
77          #$app->grab_input( SDL_GRAB_QUERY );          #$app->grab_input( SDL_GRAB_QUERY );
78          $app->grab_input( SDL_GRAB_OFF );          $app->grab_input( SDL_GRAB_OFF );
79          $app->title( ref($self) . ' ' . $self::VERSION );          $app->title( ref($self) );
80    
81          $self->app( $app );          $self->app( $app );
82    
# Line 218  Check SDL event loop if there are any pe Line 245  Check SDL event loop if there are any pe
245  =cut  =cut
246    
247  my $pending_key;  my $pending_key;
248    my $key_active;
249  my $run_for = 2000;  my $run_for = 2000;
250    
 my $key_down;  
   
 sub key_down {  
         my $self = shift;  
         my $key = shift;  
         warn "key_down($key) = ",$key_down->{$key}, "\n" if $self->debug;  
         return $key_down->{$key};  
 }  
   
251  sub key_pressed {  sub key_pressed {
252          my $self = shift;          my $self = shift;
253    
# Line 238  sub key_pressed { Line 257  sub key_pressed {
257          my $event = $self->event || confess "no event?";          my $event = $self->event || confess "no event?";
258    
259          if ( ! $event->poll ) {          if ( ! $event->poll ) {
260                    return $pending_key unless $self->can('session_event');
261                  if ( my $h = $self->session_event('key_pressed') ) {                  if ( my $h = $self->session_event('key_pressed') ) {
262                          my ( $key, $state ) = %$h;                          my ( $key, $state ) = %$h;
263                          if ( $state ) {                          if ( $state ) {
264                                  $pending_key = $key;                                  $pending_key = $key;
265                                  $key_down->{$key}++;                                  $self->key_down( $key );
266                                    $key_active->{$key} = 1;
267                          } else {                          } else {
268                                  undef $pending_key;                                  undef $pending_key;
269                                  $key_down->{$key} = 0;                                  $self->key_up( $key );
270                                    $key_active->{$key} = 0;
271                          }                          }
272                  }                  }
273                  return $pending_key;                  return $pending_key;
# Line 259  sub key_pressed { Line 281  sub key_pressed {
281    
282          if ($type == SDL_KEYDOWN) {          if ($type == SDL_KEYDOWN) {
283                  $k = $event->key_name();                  $k = $event->key_name();
                 $key_down->{$k}++;  
284                  if ( $k eq 'escape' ) {                  if ( $k eq 'escape' ) {
285                          $run_for = $self->cli;                          $run_for = $self->cli;
286                          warn "will check event loop every $run_for cycles\n";                          warn "will check event loop every $run_for cycles\n";
# Line 267  sub key_pressed { Line 288  sub key_pressed {
288                  } else {                  } else {
289                          warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n";                          warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n";
290                          $pending_key = $k;                          $pending_key = $k;
291                            $self->key_down( $k );
292                            $key_active->{$k} = 1;
293                          $self->record_session('key_pressed', { $k => 1 });                          $self->record_session('key_pressed', { $k => 1 });
294                  }                  }
295          } elsif ( $type == SDL_KEYUP ) {          } elsif ( $type == SDL_KEYUP ) {
296                  my $up = $event->key_name();                  my $up = $event->key_name();
297                  warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n";                  warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n";
298                    $self->key_up( $up );
299                    $key_active->{$up} = 0;
300                  $self->record_session('key_pressed', { $up => 0 });                  $self->record_session('key_pressed', { $up => 0 });
                 $key_down->{$up} = 0;  
301                  undef $pending_key;                  undef $pending_key;
302          }          }
303    
# Line 282  sub key_pressed { Line 306  sub key_pressed {
306          return $pending_key;          return $pending_key;
307  }  }
308    
309    =head2 key_active
310    
311    Is key currently pressed on keyboard or in session?
312    
313      $self->key_active( 'left shift', 'right shift', 'a' );
314    
315    =cut
316    
317    sub key_active {
318            my $self = shift;
319            my @keys = @_;
320            confess "Regexp is no longer supported" if ref($_[0]) eq 'Regexp';
321    
322            my $active = 0;
323            foreach my $key ( @keys ) {
324                    $active++ if $key_active->{$key};
325            }
326    
327            warn "## key_active(",dump(@keys),") = $active\n" if $active;
328            return $active;
329    }
330    
331  =head2 loop  =head2 loop
332    
333  Implement CPU run for C<$run_run> cycles inside SDL event loop  Implement CPU run for C<$run_run> cycles inside SDL event loop
# Line 307  sub loop { Line 353  sub loop {
353          }          }
354  }  }
355    
356    # helper array to flip bytes for display
357    our @flip;
358    
359    foreach my $i ( 0 .. 255 ) {
360            my $t = 0;
361            $i & 0b00000001 and $t = $t | 0b10000000;
362            $i & 0b00000010 and $t = $t | 0b01000000;
363            $i & 0b00000100 and $t = $t | 0b00100000;
364            $i & 0b00001000 and $t = $t | 0b00010000;
365            $i & 0b00010000 and $t = $t | 0b00001000;
366            $i & 0b00100000 and $t = $t | 0b00000100;
367            $i & 0b01000000 and $t = $t | 0b00000010;
368            $i & 0b10000000 and $t = $t | 0b00000001;
369            #warn "$i = $t\n";
370            $flip[$i] = $t;
371    }
372    
373  =head1 SEE ALSO  =head1 SEE ALSO
374    
375  L<Orao> is sample implementation using this module  L<Orao> is sample implementation using this module
Legend:
Removed from v.152  
changed lines
  Added in v.171
  ViewVC Help
Powered by ViewVC 1.1.26