use Carp qw/confess/;
use Data::Dump qw/dump/;
+my $debug = 0;
+
my ( $w, $h ) = ( 800, 480 );
my $mouse_trashold = 10;
my $max_path_length = 200;
+sub debug {
+ warn '#', dump @_ if $debug;
+}
+
our $app = SDL::App->new(
-width => $w,
-height => $h,
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;
+ debug 'curve' => @curve;
my $i = 0;
while ( $i < $#curve ) {
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";
+ debug 'key down', $key;
exit if $key =~ m/^[xq]$/;
if ( $key eq 's' ) {
curve;
$app->update( $rect );
}
} 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";
+ debug 'mouse', $mouse_down, $x, $y;
my $dx = abs( $last_x - $x );
my $dy = abs( $last_y - $y );
if ( $mouse_down && ( $dx > $mouse_trashold || $dy > $mouse_trashold ) ) {
}
}
} else {
- warn "unknown $type\n";
+ debug 'unknown', $type;
}
}
};