//
// Warning : reccursive method
// If depth is too high, it will not work since a Mesh is limited to 65535 vertices
//
void Branch(PointList points, MeshBuilder builder, int depth)
{
if (depth == 0)
{
builder.Cap(points);
return;
}
List <PointList> list = points.Divide(2, 1);
Vector3 n0 = list [0].ComputeNormal();
Vector3 t0 = list [0] [1] - list [0] [0];
Vector3 e0 = 0.5f * n0.normalized - 0.15f * t0.normalized;
PointList points0 = list [0].Extrude(list [0].ComputeBarycenter(), e0, e0).Scale(0.8f);
builder.Cap(list [0].Bridge(points0, PointList.BridgeMode.CloseReuse));
Branch(points0.Shift(), builder, depth - 1);
Vector3 n1 = list [1].ComputeNormal();
Vector3 t1 = list [1] [1] - list [1] [0];
Vector3 e1 = 0.5f * n1.normalized + 0.15f * t1.normalized;
PointList points1 = list [1].Extrude(list [1].ComputeBarycenter(), e1, e1).Scale(0.8f);
builder.Cap(list [1].Bridge(points1, PointList.BridgeMode.CloseReuse));
Branch(points1.Shift(), builder, depth - 1);
}
void SphereSide(PointList points, MeshBuilder builder, int depth)
{
List <PointList> list = points.Divide(4, 4);
foreach (PointList p in list)
{
PointList newP = p.Inflate(Vector3.zero, 1f, 1f);
Extend(newP, builder);
}
}
void Start()
{
PointList pointsA = PrimitiveBuilder.CreateUnitTile();
PointList pointsB = pointsA.Translate(0.2f * Vector3.up);
List <PointList> list = pointsB.Divide(3, 3);
MeshBuilder builder = new MeshBuilder();
builder.Cap(pointsA.Bridge(pointsB, PointList.BridgeMode.CloseReuse));
foreach (PointList points in list)
{
DigHole(points, builder);
}
builder.Cap(pointsA.Reverse());
Mesh mesh = builder.Build();
NodeBuilder.SetMesh(gameObject, mesh);
}
