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152 lines
4.7 KiB
152 lines
4.7 KiB
// Amplify Shader Editor - Visual Shader Editing Tool
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// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
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using UnityEngine;
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using UnityEditor;
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using System;
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namespace AmplifyShaderEditor
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{
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[Serializable]
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[NodeAttributes( "Scale", "Math Operators", "Scales input value by a float factor" )]
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public sealed class ScaleNode : ParentNode
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{
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private const string ScaleFactorStr = "Scale";
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[SerializeField]
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private float m_scaleFactor = 1;
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private int m_cachedPropertyId = -1;
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private const float LabelWidth = 8;
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protected override void CommonInit( int uniqueId )
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{
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base.CommonInit( uniqueId );
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AddInputPort( WirePortDataType.FLOAT, false, " " );
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AddOutputPort( WirePortDataType.FLOAT, " " );
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m_insideSize.Set( 50, 10 );
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m_autoWrapProperties = true;
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m_previewShaderGUID = "6d8ec9d9dab62c44aa2dcc0e3987760d";
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}
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public override void SetPreviewInputs()
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{
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base.SetPreviewInputs();
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if ( m_cachedPropertyId == -1 )
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m_cachedPropertyId = Shader.PropertyToID( "_ScaleFloat" );
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PreviewMaterial.SetFloat( m_cachedPropertyId, m_scaleFactor );
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}
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public override void DrawProperties()
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{
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base.DrawProperties();
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m_scaleFactor = EditorGUILayoutFloatField( ScaleFactorStr, m_scaleFactor );
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}
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public override void OnInputPortConnected( int portId, int otherNodeId, int otherPortId, bool activateNode = true )
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{
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base.OnInputPortConnected( portId, otherNodeId, otherPortId, activateNode );
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m_inputPorts[ 0 ].MatchPortToConnection();
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m_outputPorts[ 0 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
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}
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public override void OnConnectedOutputNodeChanges( int outputPortId, int otherNodeId, int otherPortId, string name, WirePortDataType type )
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{
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base.OnConnectedOutputNodeChanges( outputPortId, otherNodeId, otherPortId, name, type );
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m_inputPorts[ 0 ].MatchPortToConnection();
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m_outputPorts[ 0 ].ChangeType( InputPorts[ 0 ].DataType, false );
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}
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public override void OnNodeLayout( DrawInfo drawInfo )
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{
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base.OnNodeLayout( drawInfo );
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m_propertyDrawPos.x = m_remainingBox.x + Constants.FLOAT_WIDTH_SPACING * drawInfo.InvertedZoom * 0.5f;
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m_propertyDrawPos.y = m_remainingBox.y + Constants.INPUT_PORT_DELTA_Y * drawInfo.InvertedZoom * 0.5f;
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m_propertyDrawPos.width = drawInfo.InvertedZoom * Constants.FLOAT_DRAW_WIDTH_FIELD_SIZE;
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m_propertyDrawPos.height = drawInfo.InvertedZoom * Constants.FLOAT_DRAW_HEIGHT_FIELD_SIZE;
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}
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public override void DrawGUIControls( DrawInfo drawInfo )
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{
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base.DrawGUIControls( drawInfo );
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if ( drawInfo.CurrentEventType != EventType.MouseDown )
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return;
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Rect hitBox = m_remainingBox;
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hitBox.xMin -= LabelWidth * drawInfo.InvertedZoom;
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bool insideBox = hitBox.Contains( drawInfo.MousePosition );
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if ( insideBox )
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{
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GUI.FocusControl( null );
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m_isEditingFields = true;
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}
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else if ( m_isEditingFields && !insideBox )
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{
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GUI.FocusControl( null );
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m_isEditingFields = false;
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}
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}
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private bool m_isEditingFields;
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private float m_previousValue;
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private string m_fieldText = "0";
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public override void Draw( DrawInfo drawInfo )
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{
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base.Draw( drawInfo );
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if ( !m_isVisible )
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return;
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if ( m_isEditingFields )
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{
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UIUtils.DrawFloat( this, ref m_propertyDrawPos, ref m_scaleFactor, LabelWidth );
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}
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else if ( drawInfo.CurrentEventType == EventType.Repaint )
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{
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Rect fakeField = m_propertyDrawPos;
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fakeField.xMin += LabelWidth * drawInfo.InvertedZoom;
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Rect fakeLabel = m_propertyDrawPos;
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fakeLabel.xMax = fakeField.xMin;
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EditorGUIUtility.AddCursorRect( fakeLabel, MouseCursor.SlideArrow );
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EditorGUIUtility.AddCursorRect( fakeField, MouseCursor.Text );
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if ( m_previousValue != m_scaleFactor )
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{
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m_previousValue = m_scaleFactor;
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m_fieldText = m_scaleFactor.ToString();
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}
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GUI.Label( fakeField, m_fieldText, UIUtils.MainSkin.textField );
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}
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}
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public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar )
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{
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if ( m_outputPorts[ 0 ].IsLocalValue( dataCollector.PortCategory ) )
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return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
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string portResult = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
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string result = "( " + portResult + " * " + m_scaleFactor + " )";
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return CreateOutputLocalVariable( 0, result, ref dataCollector );
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}
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public override void WriteToString( ref string nodeInfo, ref string connectionsInfo )
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{
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base.WriteToString( ref nodeInfo, ref connectionsInfo );
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IOUtils.AddFieldValueToString( ref nodeInfo, m_scaleFactor );
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}
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public override void ReadFromString( ref string[] nodeParams )
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{
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base.ReadFromString( ref nodeParams );
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m_scaleFactor = Convert.ToSingle( GetCurrentParam( ref nodeParams ) );
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}
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}
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}
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