1 files changed, 67 insertions, 0 deletions
diff --git a/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/SingleInputOp.cs b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/SingleInputOp.cs
new file mode 100644
index 00000000..4af0cba4
--- /dev/null
+++ b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Operators/SingleInputOp.cs
@@ -0,0 +1,67 @@
+// Amplify Shader Editor - Visual Shader Editing Tool
+// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
+
+using UnityEngine;
+using System;
+
+
+namespace AmplifyShaderEditor
+{
+	[Serializable]
+	public class SingleInputOp : ParentNode
+	{
+
+		[SerializeField]
+		protected string m_opName;
+		//[SerializeField]
+		//protected int m_validTypes;
+
+		protected bool m_autoUpdateOutputPort = true;
+
+		protected override void CommonInit( int uniqueId )
+		{
+			base.CommonInit( uniqueId );
+			AddInputPort( WirePortDataType.FLOAT, false, Constants.EmptyPortValue );
+			AddOutputPort( WirePortDataType.FLOAT, Constants.EmptyPortValue );
+			//m_validTypes = 0;
+			m_useInternalPortData = true;
+
+		}
+
+		public override void OnInputPortConnected( int portId, int otherNodeId, int otherPortId, bool activateNode = true )
+		{
+			base.OnInputPortConnected( portId, otherNodeId, otherPortId, activateNode );
+			m_inputPorts[ 0 ].MatchPortToConnection();
+			if ( m_autoUpdateOutputPort )
+				m_outputPorts[ 0 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
+		}
+
+		public override void OnConnectedOutputNodeChanges( int outputPortId, int otherNodeId, int otherPortId, string name, WirePortDataType type )
+		{
+			base.OnConnectedOutputNodeChanges( outputPortId, otherNodeId, otherPortId, name, type );
+			m_inputPorts[ 0 ].MatchPortToConnection();
+			if ( m_autoUpdateOutputPort )
+				m_outputPorts[ 0 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
+		}
+
+		public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar )
+		{
+			if ( m_outputPorts[ 0 ].IsLocalValue( dataCollector.PortCategory ) )
+				return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
+
+			string result = "0";
+			if ( m_inputPorts[ 0 ].IsConnected )
+			{
+				ParentNode node = m_inputPorts[ 0 ].GetOutputNode();
+				int localOutputId = m_inputPorts[ 0 ].ExternalReferences[ 0 ].PortId;
+				result = m_opName + "( " + node.GenerateShaderForOutput( localOutputId, ref dataCollector, ignoreLocalvar ) + " )";
+			}
+			else
+			{
+				result = m_opName + "( " + m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector ) + " )";
+			}
+
+			return CreateOutputLocalVariable( 0, result, ref dataCollector );
+		}
+	}
+}