public static Point RotateDirection(Vector screenDirection, double angle)
{
if (screenDirection.Length == 0)
{
throw new ArgumentException("ScreenDirection cannot be of length 0.");
}
Vector rotatedDir = screenDirection.Rotate(angle);
Point screenPoint = GetPointForDirection(rotatedDir);
return(screenPoint);
}
public static Point GetPointForDirection(Vector worldDirection)
{
if (worldDirection.Length == 0)
{
throw new InvalidOperationException("Invalid direction.");
}
else if (instance == null)
{
throw new InvalidOperationException("Instance is not initialized, cannot set click point.");
}
double angle = Maths.Angle(instance.upDirection, worldDirection);
Vector rotatedScreenPoint = toRotate.Rotate(angle);
Vector newScreenVect = Center + rotatedScreenPoint;
return(newScreenVect.ToPoint());
}