IEnumerable <SurPart> IterateChildren(SurPart parent)
{
if (parent.Children != null)
{
foreach (var p in parent.Children)
{
yield return(p);
foreach (var c in IterateChildren(p))
{
yield return(c);
}
}
}
}
public void FillMeshHierarchy(SurPart part)
{
Surface sfc;
if (surfaces.TryGetValue(part.Hash, out sfc))
{
foreach (var group in sfc.Groups)
{
//Find a list to add the geometry to
List <ConvexMesh> hull = null;
Matrix4x4 transform = Matrix4x4.Identity;
if (group.MeshID == part.Hash && !part.ParentSet)
{
if (part.DisplayMeshes == null)
{
part.DisplayMeshes = new List <ConvexMesh>();
}
hull = part.DisplayMeshes;
}
else
{
var child = IterateChildren(part).FirstOrDefault((x) => x.Hash == group.MeshID);
if (child != null)
{
if (part.DisplayMeshes == null)
{
part.DisplayMeshes = new List <ConvexMesh>();
}
hull = part.DisplayMeshes;
//Parent has hull
child.ParentSet = true;
}
}
if (hull != null)
{
//Fill the geometry
var verts = new List <Vector3>();
foreach (var v in sfc.Vertices)
{
verts.Add(Vector3.Transform(v.Point.Cast(), transform));
}
var indices = new List <int>();
if (group.VertexArrayOffset != 0)
{
throw new Exception("tgroupheader vertexarrayoffset wrong");
}
foreach (var tri in group.Triangles)
{
indices.Add(tri.Vertices[0].Vertex);
indices.Add(tri.Vertices[1].Vertex);
indices.Add(tri.Vertices[2].Vertex);
}
hull.Add(new ConvexMesh()
{
Indices = indices.ToArray(), Vertices = verts.ToArray()
});
}
}
}
//Go through children
if (part.Children != null)
{
foreach (var c in part.Children)
{
FillMeshHierarchy(c);
}
}
}
