Updated README.md

README.md

@@ -22,24 +22,34 @@ With a minimal footprint, UNEC is ideal as a base for custom state machines, dia
 ```csharp
 [System.Serializable]
 public class MathNode : Node {
+    // Adding [Input] or [Output] is all you need to do to register a field as a valid port on your node 
     [Input] public float a;
     [Input] public float b;
+    // The value of an output node field is not used for anything, but could be used for caching output results
     [Output] public float result;
-    public enum MathType { Add, Subtract, Multiply, Divide}
+    [Output] public float sum;
+
+    // UNEC will display this as an editable field - just like the normal inspector would
     public MathType mathType = MathType.Add;
+    public enum MathType { Add, Subtract, Multiply, Divide}
     
+    // GetValue should be overridden to return a value for any specified output port
     public override object GetValue(NodePort port) {
-        if (port.fieldName == "result") {
-            float a = GetInputFloat("a");
-            float b = GetInputFloat("b");
+
+        // Get new a and b values from input connections. Fallback to field values if input is not connected
+        float a = GetInputByFieldName<float>("a", this.a);
+        float b = GetInputByFieldName<float>("b", this.b);
+
+        // After you've gotten your input values, you can perform your calculations and return a value
+        if (port.fieldName == "result")
             switch(mathType) {
-                case MathType.Add: return a + b;
+                case MathType.Add: default: return a + b;
                 case MathType.Subtract: return a - b;
                 case MathType.Multiply: return a * b;
                 case MathType.Divide: return a / b;
             }
-        }
-        return 0f;
+        else if (port.fieldName == "sum") return a + b;
+        else return 0f;
     }
 }
 ```