private void btnStart_Click(object sender, EventArgs e)
{
graphics.Clear(Color.LightGray);
BaseElement element = Activator.CreateInstance(currentElementType) as BaseElement;
element.Rect = new Rectangle(location, new Size(sideLength, sideLength));
currentBehavior = Activator.CreateInstance(currentBehaviorType, new object[] { element, graphics }) as BaseBehavior;
currentBehavior.Start();
btnStop.Enabled = true;
btnStart.Enabled = false;
}