gen

<?php
error_reporting(-1);
class Avatar
{
    private $path = './images/';
    private $config = array(
        0 => 'backgrounds',
        1 => 'bodies',
        2 => 'accessories',
        3 => 'effects',
        4 => 'faces',
        5 => 'mouths',
        6 => 'eyes',
        7 => 'mustaches',
        8 => 'hats',
        9 => 'glasses',
        );

    public function __construct()
    {

    }
    
    public static function init()
    {
        return new self;
    }
    
    public function run()
    {
        $size = isset($_GET['s']) && $_GET['s'] <= 500 ? $_GET['s'] : 200;
        header('Content-Type: image/png');
        
        if (isset($_GET['a'])) {
            $options = explode('_', $_GET['a']);
            
            if (count($options) == 10) {
                $options = array_combine($this->config, array_values($options));
            } else {
                die('Missed some parameters');
            }
            
            $this->generateAvatar($options, $size);
        } else {
            $this->generateRandomAvatar($size);
        }

    }
    
    public function generateAvatar($options, $size)
    {
    
        
        foreach($options as $folder => $filename) {
        
            if ($folder === 'backgrounds') {
                if (file_exists($this->path . $folder . '/' .  $filename . '.png')) {
                    $background = imagecreatefrompng($this->path . $folder . '/' .  $filename . '.png');    
                } else {
                    $background = imagecreatefrompng($this->path . $folder . '/0.png');
                }
                continue;
            }

            if (file_exists($this->path . $folder . '/' .  $filename . '.png')) {
                $layer = imagecreatefrompng($this->path . $folder . '/' .  $filename . '.png');
                imagecopy($background, $layer, 0, 0, 0, 0, 500, 500);
            }

        }
 
        $avatar = imagecreatetruecolor($size, $size);
        imagecopyresampled($avatar, $background, 0, 0, 0, 0, $size, $size, 500, 500);
        $avatar = imagepng($avatar);
        imagedestroy($layer);
        imagedestroy($background);
        return $avatar;
    }
    
    public function generateRandomAvatar($size) 
    {
        foreach($this->config as $folder) {
        
            if($images = glob($this->path . $folder . '/' . '*.png')) {
                if ($folder === 'backgrounds') {
                    $background = imagecreatefrompng($images[mt_rand(0, count($images) - 1)]);
                    continue;
                }
                $layer = imagecreatefrompng($images[mt_rand(0, count($images) - 1)]);
                imagecopy($background, $layer, 0, 0, 0, 0, 500, 500);
                //var_dump($images[mt_rand(0, count($images) - 1)]);
            }
        }
        
        $avatar = imagecreatetruecolor($size, $size);
        imagecopyresized($avatar, $background, 0, 0, 0, 0, $size, $size, 500, 500);
        $avatar = imagepng($avatar);
        imagedestroy($layer);
        imagedestroy($background);
        return $avatar;
    }
}

Avatar::init()->run();
?>