private void GenerateIndex(Mesh mesh)
{
TriangleArray triangles = mesh.GetSaneTriangles(0);
for (int i = 0; i < triangles.Length; ++i)
{
IndexedTriangle triangle = triangles[i];
for (int j = 0; j < 3; ++j)
{
var edge = new IndexedEdge(
triangle[j],
triangle[(j + 1) % 3]
);
edgeToTriangleMap.Add(edge, i);
}
}
}
/// Gets neighbor triangle index
private int GetNeighborTriangle(int intersectedEdge)
{
// Note the reverse order of start and end indices
IndexedEdge edge = new IndexedEdge(
CurrentTriangle[(intersectedEdge + 1) % 3],
CurrentTriangle[intersectedEdge]
);
int neighbor = meshIndex.FindTriangleByEdge(edge);
#if UNITY_EDITOR
if (debugDrawEnabled)
{
mesh.DrawTriangle(neighbor, Color.yellow);
}
#endif
return(neighbor);
}
public int FindTriangleByEdge(IndexedEdge edge) => edgeToTriangleMap[edge];