// OnGUI is called for rendering and handling GUI events
    public void OnGUI()
    {
        if (GameSettings.Instance.game.showDFScreen)
        {
            Event e = Event.current;
            if (e.isKey)
            {
                RemoteFortressReader.KeyboardEvent dfEvent = new RemoteFortressReader.KeyboardEvent();
                switch (e.type)
                {
                case EventType.KeyDown:
                    dfEvent.type  = 2;
                    dfEvent.state = 0;
                    break;

                case EventType.KeyUp:
                    dfEvent.type  = 3;
                    dfEvent.state = 0;
                    break;
                }
                SDL.Mod mod = SDL.Mod.KMOD_NONE;
                if (e.shift)
                {
                    mod |= SDL.Mod.KMOD_SHIFT;
                }
                if (e.control)
                {
                    mod |= SDL.Mod.KMOD_CTRL;
                }
                if (e.alt)
                {
                    mod |= SDL.Mod.KMOD_ALT;
                }
                if (e.command)
                {
                    mod |= SDL.Mod.KMOD_META;
                }
                if (e.capsLock)
                {
                    mod |= SDL.Mod.KMOD_CAPS;
                }

                dfEvent.mod      = (uint)mod;
                dfEvent.scancode = (uint)e.keyCode;
                dfEvent.sym      = (uint)e.keyCode;
                dfEvent.unicode  = e.character;

                if (e.keyCode == KeyCode.None && e.character != '\0')
                {
                    StartCoroutine(delayedKeyboardEvent(dfEvent)); // Unity doesn't give any keyboard events for character up, but DF expect it.
                }
                else
                {
                    keyPresses.Enqueue(dfEvent);
                }
            }
        }
    }
    public IEnumerator delayedKeyboardEvent(RemoteFortressReader.KeyboardEvent dfEvent)
    {
        keyPresses.Enqueue(dfEvent);
        yield return(new WaitForSeconds(0.1f));

        dfEvent.type  = 3;
        dfEvent.state = 0;
        keyPresses.Enqueue(dfEvent);
    }