private void SwitchRoomClick(object sender, RoutedEventArgs e)
{
//SimulationStepSwitch();
int roomcount = s.model.modelRooms.Count;
if (roomcount >= 2)
{
Random r = new Random(10);
MyRoom r1 = s.model.modelRooms.ElementAt(0); //r.Next(s.model.modelRooms.Count));
MyRoom r2 = s.model.modelRooms.ElementAt(1); //r.Next(s.model.modelRooms.Count));
s.SwitchRoom(ref r1, ref r2);
}
Paint();
}