//this method will be called twice per link removed, one per link's anchor.
public void RemoveLink(PWNodeLink link)
{
if (!linkTable.Remove(link.GUID))
{
Debug.LogWarning("[LinkTable] Attempt to remove inexistent link at GUID: " + link.GUID);
}
}
public PWNodeLink GetLinkFromGUID(string linkGUID)
{
PWNodeLink ret = null;
linkTable.TryGetValue(linkGUID, out ret);
return(ret);
}
//retarget link and node events to GraphStructure event
void LinkPostAddedCallback(PWNodeLink link)
{
if (OnGraphStructureChanged != null)
{
OnGraphStructureChanged();
}
}
public void AddLink(PWNodeLink link)
{
linkGUIDs.Add(link.GUID);
links.Add(link);
//update anchorFieldRef (for multiple anchors)
anchorFieldRef.UpdateAnchors();
}
//Check errors when transferring values from a node to another
bool CheckProcessErrors(PWNodeLink link, PWNode node, bool realMode)
{
if (!realMode)
{
if (link.fromAnchor == null || link.toAnchor == null)
{
Debug.LogError("[PW Process] null anchors in link: " + link + ", from node: " + node + ", trying to removing this link");
currentGraph.RemoveLink(link, false);
return(true);
}
var fromType = Type.GetType(link.fromNode.classAQName);
var toType = Type.GetType(link.toNode.classAQName);
if (!nodesDictionary.ContainsKey(link.toNode.id))
{
Debug.LogError("[PW Process] " + "node id (" + link.toNode.id + ") not found in nodes dictionary");
return(true);
}
if (nodesDictionary[link.toNode.id] == null)
{
Debug.LogError("[PW Process] " + "node id (" + link.toNode.id + ") is null in nodes dictionary");
return(true);
}
if (!bakedNodeFields.ContainsKey(link.fromNode.classAQName) ||
!bakedNodeFields[link.fromNode.classAQName].ContainsKey(link.fromAnchor.fieldName))
{
Debug.LogError("[PW Process] Can't find field: "
+ link.fromAnchor.fieldName + " in " + fromType);
return(true);
}
if (!bakedNodeFields.ContainsKey(link.toNode.classAQName) ||
!bakedNodeFields[link.toNode.classAQName].ContainsKey(link.toAnchor.fieldName))
{
Debug.LogError("[PW Process] Can't find field: "
+ link.toAnchor.fieldName + " in " + toType);
return(true);
}
if (bakedNodeFields[link.fromNode.classAQName][link.fromAnchor.fieldName].GetValue(node) == null)
{
Debug.Log("[PW Process] tring to assign null value from "
+ fromType + "." + link.fromAnchor.fieldName);
return(true);
}
}
return(false);
}
//to be called, fmorAnchor and toAnchor fields in PWNodeLink must be valid
public void AddLink(PWNodeLink link)
{
if (link.fromAnchor == null || link.toAnchor == null)
{
Debug.LogWarning("[LinkTable] Failed to add link because these anchors are null");
return;
}
if (linkTable.ContainsKey(link.GUID))
{
Debug.LogWarning("[LinkTable] Attempt to add a link already in tha linkTable");
return;
}
linkTable[link.GUID] = link;
}
//remove the link reference stored inside this anchor
public void RemoveLinkReference(PWNodeLink link)
{
if (!linkGUIDs.Remove(link.GUID))
{
Debug.LogError("[PWAnchor] Tried to remove inexistant link GUID: " + link.GUID);
}
if (!links.Remove(link))
{
Debug.LogError("[PWAnchor] Tried to remove link: " + link);
}
//set to null the object value if we're not anymore linked
if (anchorType == PWAnchorType.Input && linkCount == 0)
{
nodeRef.SetAnchorValue(this, null);
}
//update anchor group
anchorFieldRef.UpdateAnchors();
}
public void RemoveLink(PWNodeLink link, bool raiseEvents = true)
{
if (OnLinkRemoved != null && raiseEvents)
{
OnLinkRemoved(link);
}
if (link.fromAnchor != null)
{
link.fromAnchor.RemoveLinkReference(link);
}
if (link.toAnchor != null)
{
link.toAnchor.RemoveLinkReference(link);
}
nodeLinkTable.RemoveLink(link);
if (OnPostLinkRemoved != null && raiseEvents)
{
OnPostLinkRemoved();
}
}
//create a link without checking for duplication
public PWNodeLink CreateLink(PWAnchor fromAnchor, PWAnchor toAnchor, bool raiseEvents = true)
{
PWNodeLink link = new PWNodeLink();
PWAnchor fAnchor = fromAnchor;
PWAnchor tAnchor = toAnchor;
//swap anchors if input/output are reversed
if (fromAnchor.anchorType != PWAnchorType.Output)
{
tAnchor = fromAnchor;
fAnchor = toAnchor;
}
if (!PWAnchorUtils.AnchorAreAssignable(fAnchor, tAnchor))
{
Debug.LogWarning("[PWGraph] 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);
}
