List <Vertex> IndexVertices(TriangleNet.Data.Triangle triangle, Dictionary <int, int> indexDict, ref int highestIndex, out int[] newIndices)
{
var newVertices = new List <Vertex>();
newIndices = new int[3];
if (indexDict.ContainsKey(triangle.P0))
{
newIndices[0] = indexDict[triangle.P0];
}
else
{
TriangleNet.Data.Vertex vertex0 = triangle.GetVertex(0);
newVertices.Add(new Vertex((float)vertex0.X, (float)vertex0.Y));
indexDict.Add(vertex0.ID, highestIndex);
newIndices[0] = highestIndex;
highestIndex++;
}
if (indexDict.ContainsKey(triangle.P1))
{
newIndices[1] = indexDict[triangle.P1];
}
else
{
TriangleNet.Data.Vertex vertex1 = triangle.GetVertex(1);
newVertices.Add(new Vertex((float)vertex1.X, (float)vertex1.Y));
indexDict.Add(vertex1.ID, highestIndex);
newIndices[1] = highestIndex;
highestIndex++;
}
if (indexDict.ContainsKey(triangle.P2))
{
newIndices[2] = indexDict[triangle.P2];
}
else
{
TriangleNet.Data.Vertex vertex2 = triangle.GetVertex(2);
newVertices.Add(new Vertex((float)vertex2.X, (float)vertex2.Y));
indexDict.Add(vertex2.ID, highestIndex);
newIndices[2] = highestIndex;
highestIndex++;
}
return(newVertices);
}
protected void GenerateTrisForShape()
{
if (vertices.Length >= 6 && vertices.Length % 2 == 0)
{
InputGeometry bottomGeometry = new InputGeometry();
List <Point> shape = new List <Point> ();
int halfVertLen = vertices.Length / 2;
for (int i = 0; i < halfVertLen; i++)
{
shape.Add(new Point(vertices[i].x, vertices[i].z));
}
bottomGeometry.AddRing(shape);
TriangleNet.Mesh bottomMesh = new TriangleNet.Mesh();
bottomMesh.Triangulate(bottomGeometry);
List <Vector3> verts = new List <Vector3>(bottomMesh.triangles.Count * 3);
List <int> triangleIndices = new List <int>(bottomMesh.triangles.Count * 3);
foreach (KeyValuePair <int, TriangleNet.Data.Triangle> pair in bottomMesh.triangles)
{
TriangleNet.Data.Triangle triangle = pair.Value;
TriangleNet.Data.Vertex vertex0 = triangle.GetVertex(0);
TriangleNet.Data.Vertex vertex1 = triangle.GetVertex(1);
TriangleNet.Data.Vertex vertex2 = triangle.GetVertex(2);
Vector3 p0 = new Vector3(vertex0.x, 0, vertex0.y);
Vector3 p1 = new Vector3(vertex1.x, 0, vertex1.y);
Vector3 p2 = new Vector3(vertex2.x, 0, vertex2.y);
verts.Add(p0);
verts.Add(p1);
verts.Add(p2);
triangleIndices.Add(GetIndexForVertex(p0));
triangleIndices.Add(GetIndexForVertex(p1));
triangleIndices.Add(GetIndexForVertex(p2));
}
// Create top Side
List <int> triangleIndecesReversed = new List <int>();
for (int i = triangleIndices.Count - 1; i >= 0; i--)
{
triangleIndecesReversed.Add(triangleIndices[i] + halfVertLen);
}
triangleIndices.AddRange(triangleIndecesReversed);
// Add edges
List <int> edgeIndeces = new List <int>();
for (int i = 0; i < halfVertLen; i++)
{
int leftBottom = i;
int rightBottom = (i == halfVertLen - 1 ? 0 : i + 1);
int leftTop = i + halfVertLen;
int rightTop = (i == halfVertLen - 1 ? halfVertLen : i + halfVertLen + 1);
edgeIndeces.Add(leftTop);
edgeIndeces.Add(rightTop);
edgeIndeces.Add(leftBottom);
edgeIndeces.Add(rightBottom);
edgeIndeces.Add(leftBottom);
edgeIndeces.Add(rightTop);
}
triangleIndices.AddRange(edgeIndeces);
tris = triangleIndices.ToArray();
}
else
{
Debug.LogError("[BaseShape.GenerateTrisForShape] Invalid vertices set for shape!");
}
}