added direction to listener for sound spatialization

src/scene/playercharacternode.cpp

@@ -300,6 +300,8 @@ void PlayerCharacterNode::update()
     m_playerLightNode->update();
     glm::vec3 p = this->getEyePosition();
     sf::Listener::setPosition(p.x,p.y,p.z);
+    glm::vec3 d = getDirection();
+    sf::Listener::setDirection(d.x,d.y,d.z);
 }
 
 void PlayerCharacterNode::toggleNoClip()