private static Solid MakeSolid(UniqueNumberGenerator generator, Solid original, DataStructures.Geometric.Precision.Polyhedron poly)
{
var originalFacePlanes = original.Faces.Select(x => new
{
Face = x,
Plane = x.Plane.ToPrecisionPlane()
}).ToList();
var solid = new Solid(generator.Next("MapObject"))
{
IsSelected = original.IsSelected
};
foreach (var p in poly.Polygons)
{
// Try and find the face with the same plane, so we can duplicate the texture values
var originalFace = originalFacePlanes
.Where(x => p.ClassifyAgainstPlane(x.Plane) == PlaneClassification.OnPlane)
.Select(x => x.Face)
.FirstOrDefault();
var face = new Face(generator.Next("Face"));
face.Vertices.AddRange(p.Vertices.Select(x => x.ToStandardVector3()));
face.Plane = p.Plane.ToStandardPlane();
if (originalFace != null)
{
// The plane exists, so we can just apply the texture axes directly
face.Texture = originalFace.Texture.Clone();
}
else
{
// No matching plane exists, so it's the clipping plane.
// Apply the first texture we find and align it with the face.
var firstFace = originalFacePlanes[0].Face;
face.Texture = firstFace.Texture.Clone();
face.Texture.AlignToNormal(face.Plane.Normal);
}
solid.Data.Add(face);
}
// Add any extra data (visgroups, colour, etc)
foreach (var data in original.Data.Where(x => !(x is Face)))
{
solid.Data.Add((IMapObjectData)data.Clone());
}
return(solid);
}
public static bool Split(this Solid solid, UniqueNumberGenerator generator, Plane plane, out Solid back, out Solid front)
{
back = front = null;
var pln = plane.ToPrecisionPlane();
var poly = solid.ToPolyhedron().ToPrecisionPolyhedron();
if (!poly.Split(pln, out var backPoly, out var frontPoly))
{
if (backPoly != null)
{
back = solid;
}
else if (frontPoly != null)
{
front = solid;
}
return(false);
}
front = MakeSolid(generator, solid, frontPoly);
back = MakeSolid(generator, solid, backPoly);
return(true);
}
public Map()
{
NumberGenerator = new UniqueNumberGenerator();
Data = new MapDataCollection();
Root = new Root(NumberGenerator.Next("MapObject"));
}