Added autoloader

Author: MASNathan

autoload.php

@@ -0,0 +1,33 @@
+<?php
+/**
+ * I fully recommend to use this library with composer.
+ * Use this autoloader only if you don't want to install composer.
+ */
+
+spl_autoload_register(function ($class) {
+    // project-specific namespace prefix
+    $prefix = 'Screen\\';
+
+    // base directory for the namespace prefix
+    $base_dir = __DIR__ . '/src/';
+
+    // does the class use the namespace prefix?
+    $len = strlen($prefix);
+    if (strncmp($prefix, $class, $len) !== 0) {
+        // no, move to the next registered autoloader
+        return;
+    }
+
+    // get the relative class name
+    $relative_class = substr($class, $len);
+
+    // replace the namespace prefix with the base directory, replace namespace
+    // separators with directory separators in the relative class name, append
+    // with .php
+    $file = $base_dir . str_replace('\\', '/', $relative_class) . '.php';
+
+    // if the file exists, require it
+    if (file_exists($file)) {
+        require $file;
+    }
+});

demo/shot.php

@@ -1,5 +1,7 @@
 <?php
 
+// Use the first autoload instead if you don't want to install composer
+//require_once '../autoload.php';
 require_once '../vendor/autoload.php';
 
 if (!isset($_GET['url'])) {