public static void Turn(EBPrimitive angle)
{
Turtle.VerifyAccess();
double animateTime = Math.Abs((double)angle.GetAsDecimal() * 200.0 / (double)(Turtle._speed * Turtle._speed));
if (Turtle._speed == 10)
{
animateTime = 5.0;
}
Turtle._angle += angle;
GraphicsWindow.Invoke(delegate
{
DoubleAnimation animation = new DoubleAnimation
{
To = new double?(Turtle._angle),
Duration = new Duration(TimeSpan.FromMilliseconds(animateTime))
};
Turtle._rotateTransform.BeginAnimation(RotateTransform.AngleProperty, animation);
});
Turtle.WaitForReturn(animateTime);
}
public static void Move(EBPrimitive distance)
{
Turtle.VerifyAccess();
double animateTime = Math.Abs((double)distance.GetAsDecimal() * 320.0 / (double)(Turtle._speed * Turtle._speed));
if (Turtle._speed == 10)
{
animateTime = 5.0;
}
double num = Turtle._angle / 180.0 * 3.1415926535897931;
double newY = Turtle._currentY - distance * System.Math.Cos(num);
double newX = Turtle._currentX + distance * System.Math.Sin(num);
Shapes.Animate("_turtle", newX, newY, animateTime);
if (Turtle._penDown)
{
GraphicsWindow.Invoke(delegate
{
string name = Shapes.GenerateNewName("_turtleLine");
Line line = new Line
{
Name = name,
X1 = Turtle._currentX,
Y1 = Turtle._currentY,
Stroke = GraphicsWindow._pen.Brush,
StrokeThickness = GraphicsWindow._pen.Thickness
};
GraphicsWindow.AddShape(name, line);
DoubleAnimation animation = new DoubleAnimation
{
From = new double?(Turtle._currentX),
To = new double?(newX),
Duration = new Duration(TimeSpan.FromMilliseconds(animateTime))
};
DoubleAnimation animation2 = new DoubleAnimation
{
From = new double?(Turtle._currentY),
To = new double?(newY),
Duration = new Duration(TimeSpan.FromMilliseconds(animateTime))
};
line.BeginAnimation(Line.X2Property, animation);
line.BeginAnimation(Line.Y2Property, animation2);
});
}
Turtle._currentX = newX;
Turtle._currentY = newY;
Turtle.WaitForReturn(animateTime);
}
