public void GetContainingFaceTest()
{
var dcel = new DCEL();
var v1 = dcel.AddVertex(new DCELVertex(0, 0));
var v2 = dcel.AddVertex(new DCELVertex(10, 10));
var v3 = dcel.AddVertex(new DCELVertex(20, 0));
dcel.AddEdge(v1, v2);
dcel.AddEdge(v2, v3);
dcel.AddEdge(v3, v1);
var expFace = dcel.InnerFaces.FirstOrDefault();
Assert.AreEqual(expFace, dcel.GetContainingFace(new Vector2(10, 5)));
Assert.AreEqual(dcel.OuterFace, dcel.GetContainingFace(new Vector2(-1, 0)));
}
/// <summary>
/// Updates the mesh according to the Voronoi DCEL.
/// </summary>
private void UpdateMesh()
{
if (m_meshFilter.mesh == null)
{
// create initial mesh
m_meshFilter.mesh = new Mesh {
subMeshCount = 2
};
m_meshFilter.mesh.MarkDynamic();
}
else
{
// clear old mesh
m_meshFilter.mesh.Clear();
m_meshFilter.mesh.subMeshCount = 2;
}
// build vertices and triangle list
var vertices = new List <Vector3>();
var triangles = new List <int>[2] {
new List <int>(),
new List <int>()
};
// iterate over vertices and create triangles accordingly
foreach (var inputNode in m_delaunay.Vertices)
{
// dont draw anything for unowned vertices
if (m_ownership[inputNode] == EOwnership.UNOWNED)
{
continue;
}
// get ownership of node
var playerIndex = m_ownership[inputNode] == EOwnership.PLAYER1 ? 0 : 1;
var face = m_DCEL.GetContainingFace(inputNode);
// cant triangulate outer face
if (face.IsOuter)
{
continue;
}
// triangulate face polygon
var triangulation = Triangulator.Triangulate(face.Polygon.Outside);
// add triangles to correct list
foreach (var triangle in triangulation.Triangles)
{
int curCount = vertices.Count;
// add triangle vertices
vertices.Add(new Vector3(triangle.P0.x, 0, triangle.P0.y));
vertices.Add(new Vector3(triangle.P1.x, 0, triangle.P1.y));
vertices.Add(new Vector3(triangle.P2.x, 0, triangle.P2.y));
// add triangle to mesh according to owner
triangles[playerIndex].Add(curCount);
triangles[playerIndex].Add(curCount + 1);
triangles[playerIndex].Add(curCount + 2);
}
}
// update mesh
m_meshFilter.mesh.vertices = vertices.ToArray();
m_meshFilter.mesh.SetTriangles(triangles[0], 0);
m_meshFilter.mesh.SetTriangles(triangles[1], 1);
m_meshFilter.mesh.RecalculateBounds();
// set correct uv
var newUVs = new List <Vector2>();
foreach (var vertex in vertices)
{
newUVs.Add(new Vector2(vertex.x, vertex.z));
}
m_meshFilter.mesh.uv = newUVs.ToArray();
}
