#!/usr/bin/perl -w
# $Id: genimages.pl,v 1.7 2000/04/24 14:51:28 marijn Exp $
# This script generates the images that go along with the AIRTRAFFIC program.
# POVRAY and Imagemagick (convert) needed for the generation.
# Licenced under the GPL, see the COPYING file for more information.

$x_res = 30;
$y_res = 30;
$keep_temp_files = 0;
$keep_xpm_files = 1;

##### PROGRAMFILES 
$povray_bin = "/usr/bin/povray";
$povray_opt = "-P -V +A";
$convert_bin= "/usr/X11R6/bin/convert";
$convert_opt= "-verbose";
$header_dir = "../src/";

##### some statics;
my($normal_color) = "<.8, .6, .6>";
my($change_color) = "<0.4, 0.4, 1>";
my($active_color) = "<1, 0.3, 0.3>";

my($ignore_colors)= ["#667f66", "#667e66"];


my($nr_of_images) = 8; # make 8 pictures, 45deg difference between each

#do_plane_images("jet", "N", $normal_color, $nr_of_images, $ignore_colors);
#do_plane_images("jet", "C", $change_color, $nr_of_images, $ignore_colors);
#do_plane_images("jet", "A", $active_color, $nr_of_images, $ignore_colors);

$ignore_colors = ["Gray50"];

do_object_image("airport",  $ignore_colors);

sub do_plane_images{ # generate a type of image
    my($image, $type, $color, $nr, $ignore_colors) = @_;
    my($pov_file, $i, $temp_tga, $tmpl_file, $temp_xpm, $image_xpm);

    $tmpl_file = "$image.pov";
    my($step_size) = 360/$nr;

    for($i=0; $i<$nr; $i++) {
	$pov_file  = make_pov($tmpl_file, $type, $color, ($step_size * $i) );
	$temp_tga  = make_tga($pov_file);
	$temp_xpm  = tga2image($temp_tga);
    }
}

sub do_object_image{
    my($image, $ig_col) = @_;
    my($pov_file, $i, $nr, $temp_tga, $temp_file, $tmpl_file, $image_xpm);

    $tmpl_file = "$image.pov";
    $nr = 5;
    
    for($i=0; $i<$nr; $i++) { 
	$povfile   = make_pov($tmpl_file, $i+1);
	$temp_tga  = make_tga($povfile);
	$temp_xpm  = tga2image($temp_tga);
    }
}

sub make_pov { # make a povray file that is used for parsing
    my($tmpl_file, $type, $color, $pos) = @_;
    my($row);
    my($temp_file) = $tmpl_file;

    if( !defined( $type  ) ) { $type  = "" };
    if( !defined( $color ) ) { $color = "" };
    if( !defined( $pos   ) ) { $pos   = "" };
    
    if($pos ne "") {
	for(;length($pos) < 3;) {
	    $pos = "0" . $pos;
	}
    }

    $temp_file	=~ s/(.*).pov/$1$pos$type.temp.pov/;
    open(TMPL, "<$tmpl_file")     || die("Can't open file $tmpl_file: $!");
    open(TEMPFILE, ">$temp_file") || die("Can't open file $temp_file: $!");

    while(defined($row = <TMPL>)) {
	$row =~ s/--COLOR--/$color/g;
	$row =~ s/--TYPE--/$type/g;
	$row =~ s/--DIRECTION--/$pos/g;
	print(TEMPFILE $row);
    }

    close(TMPL);
    close(TEMPFILE);

    return $temp_file;
}

sub make_tga { # generate the tga file with povray
    my($pov_file) = $_[0];
    my($tga_file) = $pov_file;
    $tga_file =~ s/(.*).pov/$1.tga/;

    print `$povray_bin +I$pov_file +$tga_file +W$x_res +H$y_res $povray_opt`. "\n";

    if($keep_temp_files == 0) {
	unlink($pov_file);
    }
    return $tga_file;
}

sub tga2image { # convert the tga to XPM
    my($tga_file) = $_[0];
    my($image_file) = $tga_file;
    $image_file =~ s/(.*)\.temp\.tga/$1\.png/;
    
#    die(join(",", $tga_file, $xpm_file));

    print `$convert_bin $convert_opt $tga_file PNG:$image_file` . "\n";
    
    if($keep_temp_files == 0) {
	unlink($tga_file);
    }
    return $image_file;
}

# ChangeLog
# ---------
# $Log: genimages.pl,v $
# Revision 1.7  2000/04/24 14:51:28  marijn
# Added different airport images.
#
# Revision 1.6  2000/04/08 14:07:24  marijn
# Changed from xpm's in the executable to external png files.
#
# Revision 1.5  2000/03/09 00:00:29  marijn
# Added a README and added GPL references
#
# Revision 1.4  2000/01/04 23:20:15  marijn
# renamed airport images from "air" to "airport" for clarity
#
# Revision 1.3  2000/01/01 18:38:05  marijn
# airports are now being generated automaticly
#
# Revision 1.2  1999/12/23 01:42:06  marijn
# Autogenerating of a headerfile in the src/ with the xpm images.
#
# Revision 1.1  1999/12/19 05:04:08  marijn
# Automatic generation of xpm files complete
#