static void CreateLink(BaseGraph graph, BaseGraphCommand command, string inputCommand)
{
//get nodes from the graph:
BaseNode fromNode, toNode;
GetNodes(graph, command, out fromNode, out toNode, inputCommand);
//Create the first linkable anchors we found:
foreach (var outAnchor in fromNode.outputAnchors)
{
foreach (var inAnchor in toNode.inputAnchors)
{
if (AnchorUtils.AnchorAreAssignable(outAnchor, inAnchor))
{
//if the input anchor is already linked, find another
if (inAnchor.linkCount == 1)
{
continue;
}
graph.CreateLink(outAnchor, inAnchor, false);
return;
}
}
}
Debug.LogError("Can't link " + fromNode + " with " + toNode);
}
//disable anchors which are unlinkable with the anchor in parameter
public void DisableIfUnlinkable(Anchor anchorToLink)
{
foreach (var anchor in anchors)
{
if (!AnchorUtils.AnchorAreAssignable(anchorToLink, anchor))
{
anchor.isLinkable = false;
}
}
}
//create a link without checking for duplication
public NodeLink CreateLink(Anchor fromAnchor, Anchor toAnchor, bool raiseEvents = true)
{
NodeLink link = new NodeLink();
Anchor fAnchor = fromAnchor;
Anchor tAnchor = toAnchor;
if (OnPreLinkCreated != null && raiseEvents)
{
OnPreLinkCreated();
}
//swap anchors if input/output are reversed
if (fromAnchor.anchorType != AnchorType.Output)
{
tAnchor = fromAnchor;
fAnchor = toAnchor;
}
if (!AnchorUtils.AnchorAreAssignable(fAnchor, tAnchor))
{
Debug.LogWarning("[BaseGraph] attempted to create a link between unlinkable anchors: " + fAnchor.fieldType + " into " + tAnchor.fieldType);
return(null);
}
link.Initialize(fAnchor, tAnchor);
nodeLinkTable.AddLink(link);
//raise link creation event
if (OnLinkCreated != null && raiseEvents)
{
OnLinkCreated(link);
}
link.fromNode.AddLink(link);
link.toNode.AddLink(link);
if (OnPostLinkCreated != null && raiseEvents)
{
OnPostLinkCreated(link);
}
return(link);
}
public NodeLink SafeCreateLink(Anchor fromAnchor, Anchor toAnchor, bool raiseEvents = true)
{
Anchor fAnchor = fromAnchor;
Anchor tAnchor = toAnchor;
//swap anchors if input/output are reversed
if (fromAnchor.anchorType != AnchorType.Output)
{
tAnchor = fromAnchor;
fAnchor = toAnchor;
}
if (!AnchorUtils.AnchorAreAssignable(fAnchor, tAnchor))
{
return(null);
}
if (tAnchor.linkCount > 0)
{
tAnchor.RemoveAllLinks();
}
return(CreateLink(fAnchor, tAnchor, raiseEvents));
}