private List <MeshGeneratorNode> GetSurfaceNodes(int[,,] matrix)
{
int length = matrix.GetLength(0);
int width = matrix.GetLength(1);
int height = matrix.GetLength(2);
List <MeshGeneratorNode> nodes = new List <MeshGeneratorNode>();
MeshGeneratorNode[,,] nodeMatrix = new MeshGeneratorNode[length, width, height];
for (int i = 0; i < length; i++)
{
for (int j = 0; j < width; j++)
{
for (int k = 0; k < height; k++)
{
MeshGeneratorNode node = GetSurfaceNode(matrix, i, j, k);
nodeMatrix[i, j, k] = node;
if (node == null)
{
continue;
}
if (i != 0)
{
MeshGeneratorNode prevNode = nodeMatrix[i - 1, j, k];
prevNode?.CreateMutualLink(node);
}
if (j != 0)
{
MeshGeneratorNode prevNode = nodeMatrix[i, j - 1, k];
prevNode?.CreateMutualLink(node);
}
if (k != 0)
{
MeshGeneratorNode prevNode = nodeMatrix[i, j, k - 1];
prevNode?.CreateMutualLink(node);
}
nodes.Add(node);
}
}
}
return(nodes);
}
public List <Vector3> GetAllTriangles()
{
List <Vector3> triangles = new List <Vector3>(TriangleCount * 3);
for (int i = 0; i < LinkedNodes.Count; i++)
{
MeshGeneratorNode firstNode = LinkedNodes[i];
for (int j = i + 1; j < LinkedNodes.Count; j++)
{
MeshGeneratorNode secondNode = LinkedNodes[j];
//if ((firstNode.HaveCreatedTriangle && !secondNode.HaveCreatedTriangle) || (!firstNode.HaveCreatedTriangle && secondNode.HaveCreatedTriangle))
//continue;
if ((firstNode.MatrixPosition.x == secondNode.MatrixPosition.x && firstNode.MatrixPosition.y != secondNode.MatrixPosition.y && firstNode.MatrixPosition.z != secondNode.MatrixPosition.z) ||
(firstNode.MatrixPosition.y == secondNode.MatrixPosition.y && firstNode.MatrixPosition.x != secondNode.MatrixPosition.x && firstNode.MatrixPosition.z != secondNode.MatrixPosition.z) ||
(firstNode.MatrixPosition.z == secondNode.MatrixPosition.z && firstNode.MatrixPosition.x != secondNode.MatrixPosition.x && firstNode.MatrixPosition.y != secondNode.MatrixPosition.y))
{
Vector3Int oppositeMatrixPoint = (firstNode.MatrixPosition + secondNode.MatrixPosition) - MatrixPosition;
Vector3Int minCoordinate = new Vector3Int(Mathf.Min(MatrixPosition.x, firstNode.MatrixPosition.x, secondNode.MatrixPosition.x, oppositeMatrixPoint.x) + 1,
Mathf.Min(MatrixPosition.y, firstNode.MatrixPosition.y, secondNode.MatrixPosition.y, oppositeMatrixPoint.y) + 1,
Mathf.Min(MatrixPosition.z, firstNode.MatrixPosition.z, secondNode.MatrixPosition.z, oppositeMatrixPoint.z) + 1);
Vector3Int maxCoordinate = new Vector3Int(Mathf.Max(MatrixPosition.x, firstNode.MatrixPosition.x, secondNode.MatrixPosition.x, oppositeMatrixPoint.x),
Mathf.Max(MatrixPosition.y, firstNode.MatrixPosition.y, secondNode.MatrixPosition.y, oppositeMatrixPoint.y),
Mathf.Max(MatrixPosition.z, firstNode.MatrixPosition.z, secondNode.MatrixPosition.z, oppositeMatrixPoint.z));
int firstCommonPoint = PointsMatrix[minCoordinate.x, minCoordinate.y, minCoordinate.z];
int secondCommonPoint = PointsMatrix[maxCoordinate.x, maxCoordinate.y, maxCoordinate.z];
//HaveCreatedTriangle = true; //TODO HACK, make better
if (firstCommonPoint == secondCommonPoint)
{
continue;
}
triangles.Add(Position);
Vector3Int normal = Cross(firstNode.MatrixPosition - MatrixPosition, secondNode.MatrixPosition - MatrixPosition);
if (firstCommonPoint > secondCommonPoint)
{
if (normal + minCoordinate == maxCoordinate)
{
triangles.Add(firstNode.Position);
triangles.Add(secondNode.Position);
}
else
{
triangles.Add(secondNode.Position);
triangles.Add(firstNode.Position);
}
}
else
{
if (normal + maxCoordinate == minCoordinate)
{
triangles.Add(firstNode.Position);
triangles.Add(secondNode.Position);
}
else
{
triangles.Add(secondNode.Position);
triangles.Add(firstNode.Position);
}
}
}
}
}
return(triangles);
}
public void CreateMutualLink(MeshGeneratorNode node)
{
LinkedNodes.Add(node);
node.LinkedNodes.Add(this);
}