<?php /* -*- mode:PHP -*- */

// Create the image
$image=imagecreate($info['width'], $info['depth']);

// Allocate our color palate
foreach ($info['palate'] AS &$area) {
  foreach ($area AS &$type) {
    foreach ($type AS &$rgb) {
      if (is_array($rgb)
	  && isset($rgb['red'])
	  && isset($rgb['green'])
	  && isset($rgb['blue'])) {
	$rgb['color'] = imagecolorallocatealpha($image,
						$rgb['red'],
						$rgb['green'],
						$rgb['blue'],
						isset($rgb['alpha']) ? $rgb['alpha'] : 0);
      }
    }
  }
}

if ($info['border']) {
  // Create border around image
  imageline($image,
	    0,                0,
	    0,                $info['depth'],
	    $info['palate']['main']['layout']['border']['color']);
  imageline($image,
	    0,                0,
	    $info['width'],   0,
	    $info['palate']['main']['layout']['border']['color']);
  imageline($image,
	    $info['width']-1, 0,
	    $info['width']-1, $info['depth']-1,
	    $info['palate']['main']['layout']['border']['color']);
  imageline($image,
	    0,                $info['depth']-1,
	    $info['width']-1, $info['depth']-1,
	    $info['palate']['main']['layout']['border']['color']);
}

// Go through each unit, placing it on the map
foreach ($info['units'] AS $unit) {
  // Draw the unit borders
  imageline($image,
	    $unit['left'],  $unit['top'],
	    $unit['right'], $unit['top'],
	    $info['palate']['main']['layout']['wall']['color']);
  imageline($image,
	    $unit['right'], $unit['top'],
	    $unit['right'], $unit['bottom'],
	    $info['palate']['main']['layout']['wall']['color']);
  imageline($image,
	    $unit['right'], $unit['bottom'],
	    $unit['left'],  $unit['bottom'],
	    $info['palate']['main']['layout']['wall']['color']);
  imageline($image,
	    $unit['left'],  $unit['bottom'],
	    $unit['left'],  $unit['top'],
	    $info['palate']['main']['layout']['wall']['color']);

  // Fill the unit according to its status
  imagefilledrectangle($image,
		       $unit['left']+1, $unit['top']+1, $unit['right']-1, $unit['bottom']-1,
		       $info['palate']['unit'][$unit['status']]['bg']['color']);

  // If the unit is wide enough, run the text horizontal,
  // otherwise, we'll have to run it vertical.
  if ($unit['width'] > 100) {
    imagestring($image, 1,
		$unit['left']+3, $unit['top']+3,
		$unit['name'],
		$info['palate']['unit'][$unit['status']]['fg']['color']);
  }
  else {
    imagestringup($image, 1,
		  $unit['left']+3, $unit['bottom']-3,
		  $unit['name'],
		  $info['palate']['unit'][$unit['status']]['fg']['color']);
  }

}


header("Content-type: image/png");
if (! imagepng($image)) {
  die("Couldn't output image!");
}

// Clear image from memory
imagedestroy($image);

// Closing PHP tag intentionally omitted