From 6783324018c231710e5898d3c3e5d40acef7f152 Mon Sep 17 00:00:00 2001
From: Thor Brigsted <tb@3de.dk>
Date: Mon, 4 Mar 2019 18:29:43 +0100
Subject: [PATCH] Fix drawing instance twice for instanceportlists

---
 Scripts/Editor/NodeEditor.cs          |  1 +
 Scripts/Editor/NodeEditorGUILayout.cs | 12 ++++++++++++
 2 files changed, 13 insertions(+)

diff --git a/Scripts/Editor/NodeEditor.cs b/Scripts/Editor/NodeEditor.cs
index d222f9e..1fffc66 100644
--- a/Scripts/Editor/NodeEditor.cs
+++ b/Scripts/Editor/NodeEditor.cs
@@ -64,6 +64,7 @@ namespace XNodeEditor {
 
             // Iterate through instance ports and draw them in the order in which they are serialized
             foreach(XNode.NodePort instancePort in target.InstancePorts) {
+                if (NodeEditorGUILayout.IsInstancePortListPort(instancePort)) continue;
                 NodeEditorGUILayout.PortField(instancePort);
             }
 
diff --git a/Scripts/Editor/NodeEditorGUILayout.cs b/Scripts/Editor/NodeEditorGUILayout.cs
index 7cc1a21..b2ac5e8 100644
--- a/Scripts/Editor/NodeEditorGUILayout.cs
+++ b/Scripts/Editor/NodeEditorGUILayout.cs
@@ -254,6 +254,18 @@ namespace XNodeEditor {
             GUI.color = col;
         }
 
+        /// <summary> Is this port part of an InstancePortList? </summary>
+        public static bool IsInstancePortListPort(XNode.NodePort port) {
+            string[] parts = port.fieldName.Split(' ');
+            if (parts.Length != 2) return false;
+            Dictionary<string, ReorderableList> cache;
+            if (reorderableListCache.TryGetValue(port.node, out cache)) {
+                ReorderableList list;
+                if (cache.TryGetValue(parts[0], out list)) return true;
+            }
+            return false;
+        }
+
         /// <summary> Draw an editable list of instance ports. Port names are named as "[fieldName] [index]" </summary>
         /// <param name="fieldName">Supply a list for editable values</param>
         /// <param name="type">Value type of added instance ports</param>