use SDL::Constants;
use SDL::Event;
use Math::CatmullRom;
-#use Algorithm::Line::Bresenham;
+use Algorithm::Line::Bresenham qw(line);
+use Math::Bezier;
-use Carp qw/confess/;
-use Data::Dump qw/dump/;
+use Carp qw(cluck);
+use Data::Dump qw(dump);
+
+use Airplane;
+our @airplanes;
+
+our $debug = 0;
my ( $w, $h ) = ( 800, 480 );
my $mouse_trashold = 10;
my $max_path_length = 200;
+our $mouse_color = SDL::Color->new( 0x00, 0x00, 0x80 );
+our $path_color = SDL::Color->new( 0xff, 0xff, 0x80 );
+our $black = SDL::Color->new( 0x00, 0x00, 0x00 );
+
+sub debug {
+ return unless $debug;
+ my ($package, $filename, $line) = caller;
+ warn '# ', dump( @_ ), " $filename +$line\n";
+}
+
our $app = SDL::App->new(
-width => $w,
-height => $h,
-title => 'Trace mouse',
);
+our @masks;
+our @landings;
+foreach my $path ( glob 'artwork/world1/*mask*.png' ) {
+
+ warn "mask $path ", -s $path, " bytes\n";
+
+ my $mask = SDL::Surface->new(
+ -name => $path,
+ -depth => 24,
+ );
+ push @masks, $mask;
+
+ $mask->blit( $mask->rect, $app );
+ $app->sync;
+
+ my @landing;
+ my $mask_step = 10;
+
+ my $y = 0;
+ foreach ( 0 .. $mask->height / $mask_step ) {
+ printf "%3d: ", $_;
+ my $x = 0;
+ foreach ( 0 .. $mask->width / $mask_step ) {
+ my $col = $mask->pixel( $x, $y );
+ my $nr = 0;
+ $nr += 4 if $col->r;
+ $nr += 2 if $col->g;
+ $nr += 1 if $col->b;
+ $landing[$nr] = [ $x, $y ] unless defined $landing[$nr];
+ printf "%02x%02x%02x:%d ", $col->r, $col->g, $col->b, $nr;
+ $x += $mask_step;
+ }
+ print "\n";
+ $y += $mask_step;
+ }
+
+ warn "lading for $path ",dump(@landing);
+
+ push @landings, [ @landing ];
+}
+
+my $current_mask = 0;
+
+warn "# masks ",dump(@masks), " landings ", dump(@landings);
+
+sub mask_hex {
+ my ( $i, $x, $y ) = @_;
+
+ my $col = $masks[$i]->pixel( $x, $y );
+ my $hex = sprintf '%02x%02x%02x', $col->r, $col->g, $col->b;
+ warn "mask $x $y $hex\n";
+ return $hex;
+}
+
+sub lading_points {
+ my ( $x, $y ) = @_;
+ my @points;
+ foreach my $i ( 0 .. $#masks ) {
+ my $hex = mask_hex( $i, $x, $y );
+ if ( $hex eq '000000' ) {
+ warn "lading point $x $y from mask $i hex $hex\n";
+ foreach ( 1 .. 6 ) {
+ push @points,
+ $landings[$i]->[$_]->[0],
+ $landings[$i]->[$_]->[1];
+ }
+ } else {
+ debug $x, $y, $i, $hex, 'ignored';
+ }
+ warn "mask $i points ",dump( @points );
+ }
+ return @points;
+}
+
our $event = SDL::Event->new;
our $mouse_down = 0;
-our $white = SDL::Color->new( 0xff, 0xff, 0xff );
-our $red = SDL::Color->new( 0xff, 0x00, 0x00 );
-our $black = SDL::Color->new( 0x00, 0x00, 0x00 );
-
my ( $last_x, $last_y ) = ( 0,0 );
-my @path;
+our @path;
+sub reset_path { @path = () }
+
+sub curve_catmull_rom {
+
+ if ( $#path < ( 4 * 2 - 1 ) ) { # less than 4 points
+ warn "path too short ", dump @path;
+ reset_path;
+ return;
+ }
+
+ my $curve = Math::CatmullRom->new( @path );
+ my $points = $#path + 1 - 4; # remove start/end points
+ return $curve->curve( $points );
+}
+
+sub curve_bezier {
+ my $curve = Math::Bezier->new( @path );
+ return $curve->curve( $#path + 1 );
+}
+
+our $curve_type = 0;
sub curve {
- return unless $#path > 4;
- my $curve = Math::CatmullRom->new( splice @path, 0, $#path + $#path / 2 );
- my @curve = $curve->curve( $mouse_trashold * $max_path_length / 2 );
- warn "curve ", dump @curve;
+ # add landing path points
+ push @path, lading_points( $path[-2], $path[-1] ) if $#path > 1;
+
+ my $type = 1;
+
+ my @curve = $curve_type ? curve_catmull_rom : curve_bezier;
+ debug 'curve' => @curve;
my $i = 0;
- while ( $i < $#curve ) {
- my $rect = SDL::Rect->new( -x => int($curve[$i++]), -y => int($curve[$i++]), -w => 1, -h => 1 );
- $app->fill( $rect, $red );
- $app->update( $rect );
+ while ( $i <= $#curve - 4 ) {
+ line(
+ int($curve[$i++]),
+ int($curve[$i++]),
+ int($curve[$i++]),
+ int($curve[$i++]),
+ sub { $app->pixel( @_, $path_color ) }
+ );
}
+ $app->sync;
+
+ push @airplanes, Airplane->new( $app );
+ $airplanes[-1]->set_path( @curve );
+ reset_path;
+}
+
+sub clear_screen {
+ my ( $mask ) = @_;
+ reset_path;
+ $app->fill( $app->rect, $black );
+ if ( defined $mask ) {
+ warn "clear_screen $mask";
+ $masks[$current_mask]->blit( $masks[$current_mask]->rect, $app, $app->rect );
+ } else {
+ warn "clear_screen all masks";
+ $_->blit( $_->rect, $app, $app->rect ) foreach @masks;
+ }
+ $app->sync;
}
sub handle_events {
- while ( $event->wait ) {
+ while ( $event->poll ) {
my $type = $event->type();
if ( $type == SDL_MOUSEBUTTONDOWN() ) {
- warn "mouse down ", $event->button_x, ' ', $event->button_y;
+ debug 'mouse down', $event->button_x, $event->button_y;
$mouse_down = 1;
} elsif ( $type == SDL_MOUSEBUTTONUP() ) {
- warn "mouse up ", $event->button_x, ' ', $event->button_y;
+ debug 'mouse up', $event->button_x, $event->button_y;
$mouse_down = 0;
curve;
} elsif ( $type == SDL_QUIT() ) {
exit;
} elsif ( $type == SDL_KEYDOWN() ) {
my $key = $event->key_name;
- warn "key down $key\n";
+ warn 'key down', $key, $/;
exit if $key =~ m/^[xq]$/;
- if ( $key eq 's' ) {
+ if ( $key eq 's' ) { # XXX draw curve
curve;
- } elsif ( $key eq 'd' ) {
- @path = ();
- my $rect = SDL::Rect->new( -x => 0, -y => 0, -w => $w, -h => $h );
- $app->fill( $rect, $black );
- $app->update( $rect );
+ } elsif ( $key eq 'backspace' || $key eq 'c' ) { # XXX clean screen
+ clear_screen;
+ } elsif ( $key eq 'd' ) { # XXX toggle debug
+ $debug = ! $debug;
+ warn "debug $debug\n";
+ } elsif ( $key eq 'm' ) { # XXX cycle masks
+ $current_mask++;
+ $current_mask = 0 if $current_mask > $#masks;
+ clear_screen $current_mask;
+ } elsif ( $key eq 't' ) { # XXX curve type
+ $curve_type = ! $curve_type;
+ } else {
+ warn "unknown key $key";
}
} elsif ( $type == SDL_KEYUP() ) {
- warn "key up ", $event->key_name,$/;
+ debug 'key up', $event->key_name;
} elsif ( $type == SDL_MOUSEMOTION() ) {
-# warn "mouse ", $event->motion_xrel, ' ', $event->motion_yrel;
my ( $x, $y ) = ( $event->motion_x, $event->motion_y );
- warn "mouse $mouse_down @ $x*$y\n";
- my $dx = abs( $last_x - $x );
- my $dy = abs( $last_y - $y );
- if ( $mouse_down && ( $dx > $mouse_trashold || $dy > $mouse_trashold ) ) {
+ #debug 'mouse', $mouse_down, $x, $y;
+ my $d = sqrt( ( $x - $last_x ) ** 2 + ( $y - $last_y ) ** 2 );
+ if ( $mouse_down && $d > $mouse_trashold ) {
if ( $#path < $max_path_length ) {
push @path, $x, $y;
- my $rect = SDL::Rect->new( -x => $event->motion_x, -y => $event->motion_y, -w => 3, -h => 3 );
- $app->fill( $rect, $white );
+ my $rect = SDL::Rect->new( -x => $event->motion_x - 1, -y => $event->motion_y -1 , -w => 3, -h => 3 );
+ $app->fill( $rect, $mouse_color );
$app->update( $rect );
$last_x = $x;
- $last_y = $y;
+ $last_y = $y;
} else {
$mouse_down = 0;
curve;
}
}
} else {
- warn "unknown $type\n";
+ warn "unknown type $type\n";
}
}
};
while(1) {
handle_events;
+ $_->draw foreach @airplanes;
+ $app->delay(50);
$app->sync;
- $app->delay(1);
}
1;
projects / perl-landing-airplanes.git / blobdiff