From: Dobrica Pavlinusic <dpavlin@rot13.org>
Date: Wed, 19 May 2010 15:29:56 +0000 (+0200)
Subject: split out debug code
X-Git-Url: http://git.rot13.org/?p=perl-landing-airplanes.git;a=commitdiff_plain;h=490c8eba299baf39c1a0b72b68d01500c8a6b812

split out debug code
---

diff --git a/trace-path.pl b/trace-path.pl
index 77a378d..de5d493 100755
--- a/trace-path.pl
+++ b/trace-path.pl
@@ -14,10 +14,16 @@ use Math::CatmullRom;
 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,
@@ -42,7 +48,7 @@ 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;
+	debug 'curve' => @curve;
 
 	my $i = 0;
 	while ( $i < $#curve ) {
@@ -58,17 +64,17 @@ sub handle_events {
 		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;
@@ -79,11 +85,10 @@ sub handle_events {
 				$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 ) ) {
@@ -100,7 +105,7 @@ sub handle_events {
 				}
 			}
 		} else {
-			warn "unknown $type\n";
+			debug 'unknown', $type;
 		}
 	}
 };