static protected void CutPolygonByPlanes(Polygon3D polygon, WorldcraftSidePlanes sidePlanes, int iSkipPlaneIndex)
{
for (int i = 0; i < sidePlanes.Count; i++)
{
if (i != iSkipPlaneIndex)
{
sidePlanes[i].plane.ClipPolygon(polygon);
}
}
}
//----------------------------------------------------------------------------
static public WorldcraftObject FromTokenReader(TokenReader tr, Textures textures)
{
WorldcraftObject wo = new WorldcraftObject();
Debug.Assert(tr.LookAhead == "{");
tr.GetToken();
while (tr.LookAhead != null && tr.LookAhead != "}")
{
if (tr.LookAhead == "{")
{
tr.GetToken();
WorldcraftSidePlanes sidePlanes = new WorldcraftSidePlanes();
while (tr.LookAhead != null && tr.LookAhead == "(")
{
sidePlanes.Add(WorldcraftSidePlane.FromTokenReader(tr, textures));
}
wo.Faces.AddRange(ConvertSidePlanesToFaces(wo, sidePlanes, textures));
Debug.Assert(tr.LookAhead == "}");
tr.GetToken();
}
else
{
string key = tr.GetToken();
string val = tr.GetToken();
if (wo._properties.Contains(key) == false)
{
wo._properties.Add(key, val);
}
}
}
Debug.Assert(tr.LookAhead != null);
tr.GetToken();
Debug.Assert(wo.ClassName != null);
/*Color clrMaterial = wo.MaterialColor;
* foreach( Face face in wo.Faces ) {
* face.Color = clrMaterial;
* }*/
return(wo);
}
static protected Faces ConvertSidePlanesToFaces(WorldcraftObject wo, WorldcraftSidePlanes sidePlanes, Textures textures)
{
Faces faces = new Faces();
for (int i = 0; i < sidePlanes.Count; i++)
{
//Consider this side plane and it's associated heavily used parts.
WorldcraftSidePlane sp = sidePlanes[i];
Polygon3D polygon = sp.plane.CreatePolygon(10000);
if (Vector3D.Dot(polygon.GetNormal(), sp.plane.Normal) > 0)
{
polygon.Flip();
}
CutPolygonByPlanes(polygon, sidePlanes, i);
if (polygon.Points.Count >= 3)
{
Face face = new Face();
face.Texture = sp.texture;
face.SAxis = sp.sAxis;
face.TAxis = sp.tAxis;
face.Plane = sp.plane.GetFlipped();
face.GroupName = wo.ClassName;
foreach (Vector3D pt in polygon.Points)
{
face.Points.Add(face.Plane.ProjectOntoPlane(pt));
}
faces.Add(face);
}
}
return(faces);
}
