Bug Fixes about scenarios ... and a lot more stuff.

Starting the howtoplay

scenarios/Example.php

@@ -0,0 +1,16 @@
+<?php
+
+use Ad5001\UHC\scenario\Scenario;
+use pocketmine\Player;
+
+class ExampleScenario extends Scenario {
+
+    public function onStart() {
+
+        $this->getLogger()->info("Started !");
+    }
+
+    public function onJoin(Player $player) {
+        $player->sendMessage("Welcome to this example UHC Scenario !");
+    }
+}