SharpNeat.Decoders.HyperNeat.Substrate.CreateNetworkNodeList C# (CSharp) Method

        private NodeList CreateNetworkNodeList()
        {
            // Count the total number of nodes.
            int nodeCount = 0;
            foreach(SubstrateNodeSet set in _nodeSetList) {
                nodeCount += set.NodeList.Count;
            }
            // Count the additional bias node (not explicitly defined on the substrate).
            nodeCount++;

            // Allocate storage for the nodes.
            NodeList nodeList = new NodeList(nodeCount);

            // Create bias node.
            // Note. The nodes are created in the order of inputs, outputs and then hidden. This is the order required when constructing
            // instances of the NeatGenome and NetworkDefinition classes. The requirement comes about through internal implementation of 
            // those classes - see comments on those classes for more info.
            nodeList.Add(new NetworkNode(0u, NodeType.Bias, _activationFnId));

            // Create input nodes. By convention the first nodeset describes the input nodes (not including the bias).
            SubstrateNodeSet nodeSet = _nodeSetList[0];
            int setNodeCount = nodeSet.NodeList.Count;

            // Create input nodes.
            for(int i=0; i<setNodeCount; i++) {
                nodeList.Add(new NetworkNode(nodeSet.NodeList[i]._id, NodeType.Input, _activationFnId));
            }

            // Create output nodes. By convention the second nodeset describes the output nodes.
            nodeSet = _nodeSetList[1];
            setNodeCount = nodeSet.NodeList.Count;
            for(int i=0; i<setNodeCount; i++) {
                nodeList.Add(new NetworkNode(nodeSet.NodeList[i]._id, NodeType.Output, _activationFnId));
            }

            // Create hidden nodes (if any). All nodesets after the input and output nodesets define hidden nodes.
            int setCount = _nodeSetList.Count;
            for(int nodeSetIdx=2; nodeSetIdx<setCount; nodeSetIdx++)
            {
                nodeSet = _nodeSetList[nodeSetIdx];
                setNodeCount = nodeSet.NodeList.Count;
                for(int i=0; i<setNodeCount; i++) {
                    nodeList.Add(new NetworkNode(nodeSet.NodeList[i]._id, NodeType.Hidden, _activationFnId));
                }
            }

            return nodeList;
        }