<?php

  // © Aeldan 2012
  // Feel free to modify this file as you wish.
  
  // your map sizes, for your array
  define("MAP_WIDTH", 7);
  define("MAP_HEIGHT", 8);
  
  define("ROOM1", 1);
  define("ROOM2", 2);
  define("ROOM3", 3);

  define("PATH", -1);
  define("FREE", 0);
  
  // block size in pixels
  define("BLOCK_SIZE", 15);
  
  define("COLOR_ROOM", "ff0000"); // hexadecimal colors
  define("COLOR_PATH", "00ff00");
  define("COLOR_FREE", "ffffff");
  define("COLOR_LINE", "000000");
  
  // Define your map variable as an array of arrays, containing the values
  // above. You can use any array, any defined variables.
  // TIP: Include your generator at the top, then assign your own array/matrix
  // to the $map variable. As long as you are using -1 for paths, 0 for free,
  // positive numbers for rooms, it will work!
  
  $map = array(
    0 => array(ROOM1, ROOM1, ROOM1, PATH, FREE, FREE, FREE),
    1 => array(ROOM1, ROOM1, ROOM1, PATH, FREE, FREE, FREE),
    2 => array(FREE, FREE, PATH, PATH, FREE, FREE, FREE),
    3 => array(FREE, ROOM2, ROOM2, PATH, PATH, FREE, FREE),
    4 => array(FREE, ROOM2, ROOM2, FREE, PATH, FREE, FREE),
    5 => array(FREE, ROOM2, ROOM2, FREE, PATH, FREE, FREE),
    6 => array(FREE, FREE, FREE, PATH, PATH, ROOM3, ROOM3),
    7 => array(FREE, FREE, FREE, PATH, FREE, ROOM3, ROOM3)
  );
  
  $image = imagecreatetruecolor(MAP_WIDTH * BLOCK_SIZE, MAP_HEIGHT * BLOCK_SIZE);
  
  $colors = array();
  $colors['room'] =
      imagecolorallocate(
              $image,
              hexdec(substr(COLOR_ROOM, 0, 2)),
              hexdec(substr(COLOR_ROOM, 2, 2)),
              hexdec(substr(COLOR_ROOM, 4, 2)));
  $colors['path'] =
      imagecolorallocate(
              $image,
              hexdec(substr(COLOR_PATH, 0, 2)),
              hexdec(substr(COLOR_PATH, 2, 2)),
              hexdec(substr(COLOR_PATH, 4, 2)));
  $colors['free'] =
      imagecolorallocate(
              $image,
              hexdec(substr(COLOR_FREE, 0, 2)),
              hexdec(substr(COLOR_FREE, 2, 2)),
              hexdec(substr(COLOR_FREE, 4, 2)));
  $colors['line'] =
      imagecolorallocate(
              $image,
              hexdec(substr(COLOR_LINE, 0, 2)),
              hexdec(substr(COLOR_LINE, 2, 2)),
              hexdec(substr(COLOR_LINE, 4, 2)));

              
  for($i = 0; $i < MAP_WIDTH; $i++) {
    for($j = 0; $j < MAP_HEIGHT; $j++) {
      switch($map[$i][$j]) {
        case FREE:
          $c = $colors['free'];
          break;
        case PATH:
          $c = $colors['path'];
          break;
        default:
          $c = $colors['room'];
          break;
      }
      imagefilledrectangle($image, $i*BLOCK_SIZE, $j*BLOCK_SIZE, ($i+1) * BLOCK_SIZE, ($j+1) * BLOCK_SIZE, $c);
      
      if(isset($map[$i][$j-1]) && $map[$i][$j-1] != $map[$i][$j]) {
        imagefilledrectangle($image, $i*BLOCK_SIZE, $j*BLOCK_SIZE, ($i+1) * BLOCK_SIZE, $j*BLOCK_SIZE, $colors['line']);
      }
      if(isset($map[$i-1][$j]) && $map[$i-1][$j] != $map[$i][$j]) {
        imagefilledrectangle($image, $i*BLOCK_SIZE, $j*BLOCK_SIZE, $i * BLOCK_SIZE, ($j+1)*BLOCK_SIZE, $colors['line']);
      }
    }
  }
  imagerectangle($image, 0, 0, MAP_WIDTH*BLOCK_SIZE -1, MAP_HEIGHT*BLOCK_SIZE -1, $colors['line']);
  
  header("Content-type: image/png");
  imagepng($image);
  die();