MAPG-3 create basic contoller functionality

src/Controller/BaseController.php

@@ -0,0 +1,24 @@
+<?php namespace MapGuesser\Controller;
+
+abstract class BaseController
+{
+    protected string $view;
+
+    protected array $variables = [];
+
+    public function render() : string
+    {
+        $this->operate();
+
+        extract($this->variables);
+
+        ob_start();
+        require ROOT . '/views/' . $this->view . '.php';
+        $content = ob_get_contents();
+        ob_end_clean();
+
+        return $content;
+    }
+
+    abstract protected function operate() : void;
+}

src/Controller/GuessController.php

@@ -0,0 +1,22 @@
+<?php namespace MapGuesser\Controller;
+
+use MapGuesser\Util\Geo\Bounds;
+use MapGuesser\Util\Geo\Position;
+
+class GuessController extends BaseController
+{
+    protected string $view = 'guess';
+
+    protected function operate() : void
+    {
+        // demo position
+        $realPosition = new Position(47.85239, 13.35101);
+
+        // demo bounds
+        $bounds = new Bounds($realPosition);
+        $bounds->extend(new Position(48.07683,7.35758));
+        $bounds->extend(new Position(47.57496, 19.08077));
+
+        $this->variables = compact('realPosition', 'bounds');
+    }
+}