/// <summary>
/// Creates connection between one node to another. The connection is one one-way and tries to prevent circular to prevent infinity loops.
/// </summary>
/// <param name="from">A node that is higher in hierarchy.</param>
/// <param name="to">A node that is lower in hierarchy.</param>
/// <returns>True if connection succeed. Otherwise false.</returns>
public bool ConnectNodes(AFlowNode from, ANode to)
{
if (_nodes.Contains(from) && _nodes.Contains(to) && to != Root) {
var n = to as AFlowNode;
if (n != null) {
//check nodes recursive to prevent circular trees
if (IsConnected(from, n)) {
return false;
}
}
return from.AddNode(to);
}
return false;
}
private bool IsConnected(AFlowNode from, AFlowNode to)
{
for (int i = 0; i < to.NodeCount; ++i)
{
var n = to.GetNode(i) as AFlowNode;
if (n != null)
{
if (from == n || IsConnected(from, n))
{
return(true);
}
}
}
return(false);
}
/// <summary>
/// Creates connection between one node to another. The connection is one one-way and tries to prevent circular to prevent infinity loops.
/// </summary>
/// <param name="from">A node that is higher in hierarchy.</param>
/// <param name="to">A node that is lower in hierarchy.</param>
/// <returns>True if connection succeed. Otherwise false.</returns>
public bool ConnectNodes(AFlowNode from, ANode to)
{
if (_nodes.Contains(from) && _nodes.Contains(to) && to != Root)
{
var n = to as AFlowNode;
if (n != null)
{
//check nodes recursive to prevent circular trees
if (IsConnected(from, n))
{
return(false);
}
}
return(from.AddNode(to));
}
return(false);
}
private bool IsConnected(AFlowNode from, AFlowNode to)
{
for (int i = 0; i < to.NodeCount; ++i) {
var n = to.GetNode(i) as AFlowNode;
if (n != null) {
if (from == n || IsConnected(from, n)) {
return true;
}
}
}
return false;
}
private void ConnectCallback(object obj)
{
var n = obj as AFlowNode;
if (n != null) {
_startConnection = n;
}
}
private void NodeLeftClicked(ANode node)
{
if (_tree == null || !_tree.Nodes.Contains(node)) {
return;
}
Selection.activeObject = node;
if(_startConnection != null) {
if(_startConnection != node && _tree.ConnectNodes(_startConnection, node)) {
AssetDatabase.SaveAssets();
}
_startConnection = null;
}
}