private static MeshWithCenter ConvertFromDirectedGraph(MeshGraph graph)
{
Vector3[] verticies = new Vector3[graph.allVerts.Length];
Vector3[] normals = new Vector3[graph.allVerts.Length];
Vector4[] tangents = new Vector4[graph.allVerts.Length];
Vector2[] uv = new Vector2[graph.allVerts.Length];
Bounds b = new Bounds(graph.allVerts[0].pos, Vector3.zero);
for (int i = 0; i < graph.allVerts.Length; i++)
{
normals[i] = graph.allVerts[i].normal;
tangents[i] = graph.allVerts[i].tangent;
uv[i] = graph.allVerts[i].uv;
b.Encapsulate(graph.allVerts[i].pos);
}
// put the verticie position in as an offset pos so the brick'll
// be centered yo.
for (int i = 0; i < graph.allVerts.Length; i++)
{
verticies[i] = graph.allVerts[i].pos - b.center;
}
List <int> triangles = new List <int>();
for (int i = 0; i < graph.edges.Count; i++)
{
Triangle tri = graph.edges[i];
triangles.Add(Array.FindIndex(graph.allVerts, s => s.isEqual(tri.a)));
triangles.Add(Array.FindIndex(graph.allVerts, s => s.isEqual(tri.b)));
triangles.Add(Array.FindIndex(graph.allVerts, s => s.isEqual(tri.c)));
}
Mesh mesh = new Mesh();
mesh.SetVertices(verticies);
mesh.SetUVs(0, uv);
mesh.SetNormals(normals);
mesh.SetTangents(tangents);
mesh.SetTriangles(triangles, 0);
mesh.RecalculateBounds();
MeshWithCenter data = new MeshWithCenter();
data.center = b.center;
data.mesh = mesh;
return(data);
}
public static MeshWithCenter[] splitMesh(Mesh mesh)
{
MeshGraph graph = ConvertToDirectedGraph(mesh);
MeshGraph[] graphs = SplitGraph(graph);
MeshWithCenter[] meshes = new MeshWithCenter[graphs.Length];
for (int i = 0; i < graphs.Length; i++)
{
meshes[i] = ConvertFromDirectedGraph(graphs[i]);
}
return(meshes);
}
private void CreateChildObject(MeshWithCenter mesh, MeshRenderer renderer, GameObject parent, int num)
{
GameObject child = new GameObject(gameObject.name + "_brick" + num, typeof(MeshRenderer), typeof(MeshFilter));
MeshFilter childFilter = child.GetComponent <MeshFilter>();
childFilter.sharedMesh = mesh.mesh;
MeshRenderer childRenderer = child.GetComponent <MeshRenderer>();
childRenderer.sharedMaterials = renderer.sharedMaterials;
child.transform.SetParent(parent.transform, false);
child.transform.position = mesh.center;
}