public void Connect(Node node, NodeLink link)
{
object value = FieldInfo.GetValue(node);
if (IsList)
{
if (value == null)
{
Type listType = typeof(List <>);
Type constructedListType = listType.MakeGenericType(LinkType);
value = Activator.CreateInstance(constructedListType);
FieldInfo.SetValue(node, value);
}
FieldType.GetMethod("Remove").Invoke(value, new object[] { null });
FieldType.GetMethod("Add").Invoke(value, new [] { link });
}
else
{
FieldInfo.SetValue(node, link);
}
if (IsInput)
{
link.to = node;
link.toField = FieldName;
}
else
{
link.from = node;
link.fromField = FieldName;
}
link.UpdateName();
}
public NodeLink GetEmptyLink()
{
var existing = GetConnections().Find(x => IsInput ? x.from == null : x.to == null);
if (existing)
{
return(existing);
}
var linkType = Link.LinkType;
NodeLink link;
if (IsOutput)
{
link = NodeLink.Create(linkType, Node, null, Link.FieldName, null);
}
else
{
link = NodeLink.Create(linkType, null, Node, null, Link.FieldName);
}
Link.Connect(Node, link);
return(link);
}
public NodeLink Connect(NodeLinkPort other)
{
NodeLink link = GetEmptyLink();
other.Link.Connect(other.Node, link);
return(link);
}
static public NodeLink Create(Type type, Node start, Node end, string startFieldName, string endFieldName)
{
NodeLink link = CreateInstance(type) as NodeLink;
link.from = start;
link.to = end;
link.fromField = startFieldName;
link.toField = endFieldName;
link.UpdateName();
#if UNITY_EDITOR
UnityEditor.AssetDatabase.AddObjectToAsset(link, start);
#endif
return(link);
}
public void Disconnect(Node node, NodeLink link)
{
Predicate <NodeLink> removePredicate = (x) => (!link && !x) || Equals(x, link);
bool result;
object value = FieldInfo.GetValue(node);
if (IsList)
{
result = ((int)FieldType.GetMethod("RemoveAll").Invoke(value, new [] { removePredicate })) > 0;
}
else
{
result = removePredicate(value as NodeLink);
if (result)
{
FieldInfo.SetValue(node, null);
}
}
if (result && link)
{
if (IsInput && link.to == node)
{
link.to = null;
link.toField = null;
}
if (IsOutput && link.from == node)
{
link.from = null;
link.fromField = null;
}
link.UpdateName();
}
}