/// <summary>Gets a skeleton version of this geo.</summary>
/// <returns>A skeleton version of this geo.</returns>
public GeoSkel getSkeleton()
{
GeoSkel skel = new GeoSkel();
skel.ID = this.ID;
skel.Vertices = (VectorF[])this.Vertices.Clone();
skel.UpperLeft = this.UpperLeft;
skel.LowerRight = this.LowerRight;
skel.LineTopLeft = (VectorF[])this.LineTopLeft.Clone();
skel.LineLowerRight = (VectorF[])this.LineLowerRight.Clone();
skel.CloseLoop = this.CloseLoop;
skel.LineVisible = (skel.LineVisible == null) ? null : (bool[])this.LineVisible.Clone();
return skel;
}
/// <summary>Searches for a collision between the provided line and any node or segment. Also finds the exact intersection point if segment collision.</summary>
/// <param name="point1">The first point in the line.</param>
/// <param name="point2">The second point in the line.</param>
/// <param name="ignoreSeg">The segments to ignore.</param>
/// <param name="ignoreNode">The nodes to ignore.</param>
/// <param name="nodeColl">The node that collided with the provided line.</param>
/// <param name="segColl">The segment that collided with the provided line.</param>
/// <param name="geoColl">The geometric object that collided with the provided line.</param>
/// <param name="intersection">The intersection point if intersecting a segment.</param>
/// <returns>Whether or not there was a collision between the line and any node or segment.</returns>
public bool segCollisionIntPoint(VectorF point1, VectorF point2, List<SegmentSkel> ignoreSeg, List<NodeSkel> ignoreNode, out SegmentSkel segColl, out NodeSkel nodeColl, out GeoSkel geoColl, out VectorF? intersection)
{
intersection = null;
segColl = null;
nodeColl = null;
geoColl = null;
object[] array = new object[8];
array[0] = point1;
array[1] = point2;
array[5] = false;
array[6] = null;
// look for collisions with segments
List<SegmentSkel> segColls = new List<SegmentSkel>(1);
array[2] = ignoreSeg;
array[3] = segColls;
array[4] = CollSrchType.GetIntersection;
Grid.Line(point1, point2, array, gridSegCollSeg);
if (segColls.Count > 0)
{
segColl = segColls[0];
intersection = (VectorF)array[7];
#if DEBUG
if (array[7] == null)
throw new Exception(segColls.Count.ToString() + " segment(s) was returned, but no intersections.");
#endif
}
else // look for collisions with nodes and geos
{
// look for nodes
List<NodeSkel> nodeColls = new List<NodeSkel>(1);
array[2] = ignoreNode;
array[3] = nodeColls;
array[4] = CollSrchType.DoesItCollide;
Grid.LineExpand(point1, point2, array, gridSegCollNode);
if (nodeColls.Count > 0)
{
nodeColl = nodeColls[0];
}
else // look for geos
{
List<GeoSkel> geoColls = new List<GeoSkel>(1);
array[2] = null;
array[3] = geoColls;
array[4] = CollSrchType.DoesItCollide;
Grid.LineExpand(point1, point2, array, gridSegCollGeo);
if (geoColls.Count > 0)
geoColl = geoColls[0];
}
}
return nodeColl != null || segColl != null || geoColl != null;
}