From 4fcaede3b0dcd350364c78943f5ec2e557d9316c Mon Sep 17 00:00:00 2001
From: Thor <thorbrigsted@gmail.com>
Date: Fri, 20 Oct 2017 11:41:16 +0200
Subject: [PATCH] NodePort.GetValue changes

Removed NodePort.GetValue
Added NodePort.GetOutputValue
Added NodePort.GetInputValue
Added NodePort.GetInputValue<T>
Added NodePort.GetInputValues
Added NodePort.GetInputValues<T>
Added NodePort.TryGetInputValue<T>
---
 Example/Nodes/ExampleNodeBase.cs |  2 +-
 Scripts/NodePort.cs              | 48 +++++++++++++++++++++++++++++++-
 2 files changed, 48 insertions(+), 2 deletions(-)

diff --git a/Example/Nodes/ExampleNodeBase.cs b/Example/Nodes/ExampleNodeBase.cs
index c7ad9ff..705c6bc 100644
--- a/Example/Nodes/ExampleNodeBase.cs
+++ b/Example/Nodes/ExampleNodeBase.cs
@@ -12,7 +12,7 @@ public abstract class ExampleNodeBase : Node {
         for (int i = 0; i < connectionCount; i++) {
             NodePort connection = port.GetConnection(i);
             if (connection == null) continue;
-            object obj = connection.GetValue();
+            object obj = connection.GetOutputValue();
             if (obj == null) continue;
             if (connection.type == typeof(int)) result += (int)obj;
             else if (connection.type == typeof(float)) result += (float)obj;
diff --git a/Scripts/NodePort.cs b/Scripts/NodePort.cs
index cdcc9c5..41eb8fa 100644
--- a/Scripts/NodePort.cs
+++ b/Scripts/NodePort.cs
@@ -55,10 +55,56 @@ public class NodePort {
         }
     }
 
-    public object GetValue() {
+
+    /// <summary> Return the output value of this node through its parent nodes GetValue override method. </summary>
+    /// <returns> <see cref="Node.GetValue(NodePort)"/> </returns>
+    public object GetOutputValue() {
         return node.GetValue(this);
     }
 
+    /// <summary> Return the output value of the first connected port. Returns null if none found or invalid.</summary>
+    /// <returns> <see cref="NodePort.GetOutputValue"/> </returns>
+    public object GetInputValue() {
+        NodePort connectedPort = Connection;
+        if (connectedPort == null) return null;
+        return connectedPort.GetOutputValue();
+    }
+
+    /// <summary> Return the output values of all connected ports. </summary>
+    /// <returns> <see cref="NodePort.GetOutputValue"/> </returns>
+    public object[] GetInputValues() {
+        object[] objs = new object[ConnectionCount];
+        for (int i = 0; i < ConnectionCount; i++) {
+            NodePort connectedPort = connections[i].Port;
+            objs[i] = connectedPort.GetOutputValue();
+        }
+        return objs;
+    }
+
+    /// <summary> Return the output value of the first connected port. Returns null if none found or invalid. </summary>
+    /// <returns> <see cref="NodePort.GetOutputValue"/> </returns>
+    public T GetInputValue<T>() where T : class {
+        return GetInputValue() as T;
+    }
+
+    /// <summary> Return the output values of all connected ports. </summary>
+    /// <returns> <see cref="NodePort.GetOutputValue"/> </returns>
+    public T[] GetInputValues<T>() where T : class {
+        object[] objs = GetInputValues();
+        T[] ts = new T[objs.Length];
+        for (int i = 0; i < objs.Length; i++) {
+            ts[i] = objs[i] as T;
+        }
+        return ts;
+    }
+
+    /// <summary> Return true if port is connected and has a valid input. </summary>
+    /// <returns> <see cref="NodePort.GetOutputValue"/> </returns>
+    public bool TryGetInputValue<T>(out T value) where T : class {
+        value = GetInputValue() as T;
+        return value != null;
+    }
+
     /// <summary> Connect this <see cref="NodePort"/> to another </summary>
     /// <param name="port">The <see cref="NodePort"/> to connect to</param>
     public void Connect(NodePort port) {