public override bool IsContaining(IPoint3D obj)
{
if (m_points.Count < 3) return false;
Point2D p1, p2;
bool inside = false;
Point2D oldpt = new Point2D(m_points[m_points.Count - 1].X, m_points[m_points.Count - 1].Y);
foreach (Point2D pt in m_points)
{
Point2D newpt = new Point2D(pt.X, pt.Y);
if (newpt.X > oldpt.X) { p1 = oldpt; p2 = newpt; }
else { p1 = newpt; p2 = oldpt; }
if ((newpt.X < obj.X) == (obj.X <= oldpt.X)
&& (obj.Y - p1.Y) * (p2.X - p1.X) < (p2.Y - p1.Y) * (obj.X - p1.X))
inside = !inside;
oldpt = newpt;
}
return inside;
}
/// <summary>
/// Get the point at the given heading and distance
/// </summary>
/// <param name="gameHeading">DOL Heading</param>
/// <param name="distance">Distance to point</param>
/// <returns>Point at the given heading and distance</returns>
public Point2D GetPointFromHeading(ushort heading, int distance)
{
double angle = heading*HEADING_TO_RADIAN;
double targetX = X - (Math.Sin(angle)*distance);
double targetY = Y + (Math.Cos(angle)*distance);
var point = new Point2D();
if (targetX > 0)
point.X = (int) targetX;
else
point.X = 0;
if (targetY > 0)
point.Y = (int) targetY;
else
point.Y = 0;
return point;
}