public void OpenDebugWindow()
{
if (m_debugWindow != null || m_game == null)
return;
var dbg = new DebugWindow();
dbg.Owner = System.Windows.Window.GetWindow(this);
dbg.SetGame(m_game);
dbg.Closed += (s, e) => m_debugWindow = null;
dbg.Show();
m_debugWindow = dbg;
}