private void paintShot(QPainter painter)
{
painter.Begin(this); // should not be necessary
painter.SetPen(Qt.PenStyle.NoPen);
painter.SetBrush(new QBrush(Qt.GlobalColor.black));
painter.DrawRect(shotRect());
painter.End(); // should not be necessary
}
private void paintCannon(QPainter painter)
{
painter.Begin(this); // should not be necessary
painter.SetPen(Qt.PenStyle.NoPen);
painter.SetBrush(new QBrush(Qt.GlobalColor.blue));
painter.Save();
painter.Translate(0, Height());
painter.DrawPie(new QRect(-35, -35, 70, 70), 0, 90 * 16);
painter.Rotate(-currentAngle);
painter.DrawRect(barrelRect);
painter.Restore();
painter.End(); // should not be necessary
}