1 files changed, 96 insertions, 0 deletions
diff --git a/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Textures/RotatorNode.cs b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Textures/RotatorNode.cs
new file mode 100644
index 00000000..18aa7781
--- /dev/null
+++ b/Assets/AmplifyShaderEditor/Plugins/Editor/Nodes/Textures/RotatorNode.cs
@@ -0,0 +1,96 @@
+// Amplify Shader Editor - Visual Shader Editing Tool
+// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
+
+using UnityEngine;
+using System;
+
+namespace AmplifyShaderEditor
+{
+	[Serializable]
+	[NodeAttributes( "Rotator", "UV Coordinates", "Rotates UVs or any Vector2 value from an Anchor point for a specified Time value")]
+	public sealed class RotatorNode : ParentNode
+	{
+		private int m_cachedUsingEditorId = -1;
+
+		protected override void CommonInit( int uniqueId )
+		{
+			base.CommonInit( uniqueId );
+			AddInputPort( WirePortDataType.FLOAT2, false, "UV" );
+			AddInputPort( WirePortDataType.FLOAT2, false, "Anchor" );
+			AddInputPort( WirePortDataType.FLOAT, false, "Time" );
+			AddOutputPort( WirePortDataType.FLOAT2, "Out" );
+			m_useInternalPortData = true;
+			m_inputPorts[ 2 ].FloatInternalData = 1;
+			m_textLabelWidth = 50;
+			m_previewShaderGUID = "e21408a1c7f12f14bbc2652f69bce1fc";
+		}
+
+		public override void SetPreviewInputs()
+		{
+			base.SetPreviewInputs();
+
+			if ( m_cachedUsingEditorId == -1 )
+				m_cachedUsingEditorId = Shader.PropertyToID( "_UsingEditor" );
+
+			PreviewMaterial.SetFloat( m_cachedUsingEditorId, (m_inputPorts[ 2 ].IsConnected ? 0 : 1 ) );
+		}
+
+		public override void OnInputPortConnected( int portId, int otherNodeId, int otherPortId, bool activateNode = true )
+		{
+			base.OnInputPortConnected( portId, otherNodeId, otherPortId, activateNode );
+			if( portId == 2 )
+			{
+				m_continuousPreviewRefresh = false;
+			}
+		}
+
+		public override void OnInputPortDisconnected( int portId )
+		{
+			base.OnInputPortDisconnected( portId );
+			if( portId == 2 )
+			{
+				m_continuousPreviewRefresh = true;
+			}
+		}
+
+
+		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 = string.Empty;
+			string uv = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
+			string anchor = m_inputPorts[ 1 ].GeneratePortInstructions( ref dataCollector );
+
+			string time = m_inputPorts[ 2 ].GeneratePortInstructions( ref dataCollector );
+			if ( !m_inputPorts[ 2 ].IsConnected )
+			{
+				if( !( dataCollector.IsTemplate && dataCollector.IsSRP ) )
+					dataCollector.AddToIncludes( UniqueId, Constants.UnityShaderVariables );
+				time += " * _Time.y";
+			}
+
+			result += uv;
+
+			string cosVar = "cos" + OutputId;
+			string sinVar = "sin" + OutputId;
+			dataCollector.AddLocalVariable( UniqueId, "float " + cosVar + " = cos( "+time+" );");
+			dataCollector.AddLocalVariable( UniqueId, "float " + sinVar + " = sin( "+time+" );");
+			
+			string value =  "mul( " + result + " - " + anchor + " , float2x2( "+cosVar+" , -"+sinVar+" , "+sinVar+" , "+cosVar+" )) + "+anchor;
+			RegisterLocalVariable( 0, value, ref dataCollector, "rotator" + OutputId );
+
+			return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
+		}
+
+		public override void RefreshExternalReferences()
+		{
+			base.RefreshExternalReferences();
+			if( UIUtils.CurrentShaderVersion() < 13107 )
+			{
+				m_inputPorts[ 2 ].FloatInternalData = 1;
+			}
+		}
+	}
+}