public void CenterScreen()
{
if (_gameMain.EmpireManager.CurrentEmpire != null && _gameMain.EmpireManager.CurrentEmpire.LastSelectedSystem != null)
{
_gameMain.EmpireManager.CurrentEmpire.SelectedSystem = _gameMain.EmpireManager.CurrentEmpire.LastSelectedSystem;
_camera.CenterCamera(_gameMain.EmpireManager.CurrentEmpire.SelectedSystem.X, _gameMain.EmpireManager.CurrentEmpire.SelectedSystem.Y, _camera.ZoomDistance);
_systemView.LoadSystem();
}
}