Scrape the IGN Fortnite map tiles and re-construct a large map image

scrape_ign_fortnite_map_tiles.php

<?php
/*****
  If you have PHP installed, run this from the command line:
    
    php scrape_ign_fortnite_map_tiles.php
    
 **/ 


ini_set('memory_limit','2048M');

$baseUrl="http://oyster.ignimgs.com/ignmedia/wikimaps/fortnite/season4v1-hi-res/6/";

$xMax = 63;
$yMax = 63;
$dirPrefix="./tiles/";
$totalCount = ($xMax+1)*($yMax+1);

for($x=0;$x<=$xMax;$x++){
  for($y=0;$y<=$yMax;$y++){
    $filename = "$x-$y.jpg";
    $i++;
    echo "[".number_format((100*($i/$totalCount)),2)."%] ";
    if(file_exists($dirPrefix.$filename) === false){
      echo "Downloading $filename\n";
      file_put_contents($dirPrefix.$filename, file_get_contents($baseUrl.$filename));
    }
    else{
      echo "Already have $filename\n";
    }
  }
}

if($i == $totalCount){
  // Merge images
  echo "Merging images...\n";

  // Get overall image dimensions
  list($w, $h) = getimagesize($dirPrefix."0-0.jpg");
  $width = $w * ($xMax+1);
  $height = $h * ($yMax+1);

  echo "creating base...$width x $height\n";
  // Create the big base to fill
  $map = imagecreatetruecolor($width,$height);

  for($x=0;$x<=$xMax;$x++){
    for($y=0;$y<=$yMax;$y++){
      echo "$x-$y\n";
      imagecopy(
        $map, 
        imagecreatefromjpeg($dirPrefix."$x-$y.jpg"),
        $x * $w,
        $y * $h,
        0,
        0,
        $w,
        $h
      );
    }
  }
}

 imagejpeg($map, 'map.jpg');