C# auta navrh

private void timer1_Tick(object sender, EventArgs e)
{
    pictureBox1.Invalidate();
}

void pictureBox1_Invalidate(EventArgs e)
{
    var g = e.graphics;

    foreach (Auto a in Auta)
    {
        var x,y,rotation;

        //Nacteme pouze hodnoty, abychom netravili zbytecne moc casu v locku
        lock (a)
        {
            x,y,rotation = a;
        }

        //Vykreslime auto podle hodnot
        //g.rotate(rotation)
        //g.drawRect(x-10, y-15, 20, 30)
        //g.rotate(-rotation)
        renderCar(g,x,y,rotation);
    }
}

Map map;

class Car
{
    Car()
    {
        new Thread(() =>
        {
            while(true)
            {
                Thread.Sleep();

                var x,y,rotation,speed;

                //Nacteme pouze hodnoty, abychom netravili zbytecne moc casu v locku
                lock (this)
                {
                    x,y,rotation,speed = this;
                }

                //nepredpokladame zmenu mapy za chodu (museli bychom delat jeji kopii a ne jen referenci)
                x,y,rotation = static.PerformStepOnMap(x,y,rotation,speed,map);

                //Navraceni hodnot
                lock (this)
                {
                    this = x,y,rotation;
                }
            }
        }).Start();
    }

    var x,y,rotation,speed;
    //Neresime dalsi krok cesty, ale jeji cil (krok se resi v PerformStepOnMap
    var pathTarget;

    static void PerformStepOnMap();
}

//Neresime ostatni auta = muzeme jimi projizdet
//Neresime zpomalovani (i kdyz muzeme)
//na predavani x,y,rotation se hodi struktura (nepredavame referenci, ale hodnotu coz potrebujeme - resp. je to vyhoda (i kdyz budeme vytvaret novou))