public bool CanLinkToNode(VFXNodeController nodeController, CanLinkCache cache)
{
if (nodeController == sourceNode)
{
return(false);
}
if (cache == null)
{
cache = new CanLinkCache();
}
cache.localChildrenOperator.Clear();
cache.localParentOperator.Clear();
bool result;
if (direction != Direction.Input)
{
VFXViewController.CollectAncestorOperator(sourceNode.slotContainer, cache.localParentOperator);
result = !cache.localParentOperator.Contains(nodeController.slotContainer);
}
else
{
VFXViewController.CollectDescendantOperator(sourceNode.slotContainer, cache.localChildrenOperator);
result = !cache.localChildrenOperator.Contains(nodeController.slotContainer);
}
return(result);
}
static private HashSet <IVFXSlotContainer> CollectDescendantOfAttribute(IEnumerable <VFXNodeController> allSlotContainerControllers)
{
var operatorDependOnAttribute = new HashSet <IVFXSlotContainer>();
foreach (var attributeParameter in allSlotContainerControllers.Where(o => DependOnAttribute(o.model)))
{
VFXViewController.CollectDescendantOperator(attributeParameter.model as IVFXSlotContainer, operatorDependOnAttribute);
}
return(operatorDependOnAttribute);
}
public bool CanLinkToNode(VFXNodeController nodeController, CanLinkCache cache)
{
if (nodeController == sourceNode)
{
return(false);
}
if (cache == null)
{
cache = new CanLinkCache();
}
cache.localChildrenOperator.Clear();
cache.localParentOperator.Clear();
bool result;
if (direction != Direction.Input)
{
VFXViewController.CollectAncestorOperator(sourceNode.slotContainer, cache.localParentOperator);
#if _RESTRICT_ATTRIBUTE_ACCESS
if (cache.localParentOperator.Any(o => DependOnAttribute(o)))
{
if (cache.ancestorOfSpawners == null)
{
cache.ancestorOfSpawners = CollectAnscestorOfSpawner(viewController.AllSlotContainerControllers);
}
var additionnalExcludeOperator = cache.ancestorOfSpawners;
cache.localChildrenOperator.UnionWith(additionnalExcludeOperator);
}
#endif
result = !cache.localParentOperator.Contains(nodeController.slotContainer);
}
else
{
VFXViewController.CollectDescendantOperator(sourceNode.slotContainer, cache.localChildrenOperator);
#if _RESTRICT_ATTRIBUTE_ACCESS
var contextTypeInChildren = cache.localChildrenOperator.OfType <VFXBlock>().Select(o => o.GetParent().contextType);
if (contextTypeInChildren.Any(o => o == VFXContextType.Spawner))
{
if (cache.descendantOfAttribute == null)
{
cache.descendantOfAttribute = CollectDescendantOfAttribute(viewController.AllSlotContainerControllers);
}
var additionnalExcludeOperator = cache.descendantOfAttribute;
return(!cache.localParentOperator.Contains(sourceNode.slotContainer) && !additionnalExcludeOperator.Contains(nodeController.slotContainer));
}
#endif
result = !cache.localChildrenOperator.Contains(nodeController.slotContainer);
}
return(result);
}
