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489 lines
7.6 KiB
489 lines
7.6 KiB
import Node, { addNodeClass } from '../core/Node.js';
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import { scriptableValue } from './ScriptableValueNode.js';
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import { addNodeElement, nodeProxy, float } from '../shadernode/ShaderNode.js';
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class Resources extends Map {
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get( key, callback = null, ...params ) {
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if ( this.has( key ) ) return super.get( key );
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if ( callback !== null ) {
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const value = callback( ...params );
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this.set( key, value );
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return value;
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}
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}
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}
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class Parameters {
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constructor( scriptableNode ) {
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this.scriptableNode = scriptableNode;
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}
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get parameters() {
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return this.scriptableNode.parameters;
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}
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get layout() {
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return this.scriptableNode.getLayout();
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}
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getInputLayout( id ) {
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return this.scriptableNode.getInputLayout( id );
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}
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get( name ) {
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const param = this.parameters[ name ];
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const value = param ? param.getValue() : null;
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return value;
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}
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}
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export const global = new Resources();
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class ScriptableNode extends Node {
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constructor( codeNode = null, parameters = {} ) {
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super();
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this.codeNode = codeNode;
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this.parameters = parameters;
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this._local = new Resources();
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this._output = scriptableValue();
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this._outputs = {};
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this._source = this.source;
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this._method = null;
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this._object = null;
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this._value = null;
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this._needsOutputUpdate = true;
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this.onRefresh = this.onRefresh.bind( this );
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this.isScriptableNode = true;
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}
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get source() {
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return this.codeNode ? this.codeNode.code : '';
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}
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setLocal( name, value ) {
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return this._local.set( name, value );
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}
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getLocal( name ) {
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return this._local.get( name );
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}
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onRefresh() {
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this._refresh();
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}
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getInputLayout( id ) {
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for ( const element of this.getLayout() ) {
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if ( element.inputType && ( element.id === id || element.name === id ) ) {
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return element;
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}
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}
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}
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getOutputLayout( id ) {
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for ( const element of this.getLayout() ) {
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if ( element.outputType && ( element.id === id || element.name === id ) ) {
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return element;
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}
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}
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}
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setOutput( name, value ) {
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const outputs = this._outputs;
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if ( outputs[ name ] === undefined ) {
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outputs[ name ] = scriptableValue( value );
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} else {
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outputs[ name ].value = value;
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}
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return this;
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}
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getOutput( name ) {
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return this._outputs[ name ];
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}
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getParameter( name ) {
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return this.parameters[ name ];
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}
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setParameter( name, value ) {
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const parameters = this.parameters;
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if ( value && value.isScriptableNode ) {
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this.deleteParameter( name );
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parameters[ name ] = value;
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parameters[ name ].getDefaultOutput().events.addEventListener( 'refresh', this.onRefresh );
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} else if ( value && value.isScriptableValueNode ) {
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this.deleteParameter( name );
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parameters[ name ] = value;
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parameters[ name ].events.addEventListener( 'refresh', this.onRefresh );
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} else if ( parameters[ name ] === undefined ) {
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parameters[ name ] = scriptableValue( value );
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parameters[ name ].events.addEventListener( 'refresh', this.onRefresh );
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} else {
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parameters[ name ].value = value;
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}
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return this;
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}
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getValue() {
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return this.getDefaultOutput().getValue();
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}
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deleteParameter( name ) {
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let valueNode = this.parameters[ name ];
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if ( valueNode ) {
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if ( valueNode.isScriptableNode ) valueNode = valueNode.getDefaultOutput();
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valueNode.events.removeEventListener( 'refresh', this.onRefresh );
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}
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return this;
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}
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clearParameters() {
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for ( const name of Object.keys( this.parameters ) ) {
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this.deleteParameter( name );
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}
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this.needsUpdate = true;
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return this;
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}
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call( name, ...params ) {
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const object = this.getObject();
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const method = object[ name ];
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if ( typeof method === 'function' ) {
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return method( ...params );
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}
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}
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async callAsync( name, ...params ) {
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const object = this.getObject();
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const method = object[ name ];
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if ( typeof method === 'function' ) {
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return method.constructor.name === 'AsyncFunction' ? await method( ...params ) : method( ...params );
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}
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}
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getNodeType( builder ) {
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return this.getDefaultOutputNode().getNodeType( builder );
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}
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refresh( output = null ) {
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if ( output !== null ) {
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this.getOutput( output ).refresh();
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} else {
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this._refresh();
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}
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}
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getObject() {
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if ( this.needsUpdate ) this.dispose();
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if ( this._object !== null ) return this._object;
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//
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const refresh = () => this.refresh();
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const setOutput = ( id, value ) => this.setOutput( id, value );
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const parameters = new Parameters( this );
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const THREE = global.get( 'THREE' );
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const TSL = global.get( 'TSL' );
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const method = this.getMethod( this.codeNode );
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const params = [ parameters, this._local, global, refresh, setOutput, THREE, TSL ];
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this._object = method( ...params );
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const layout = this._object.layout;
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if ( layout ) {
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if ( layout.cache === false ) {
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this._local.clear();
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}
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// default output
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this._output.outputType = layout.outputType || null;
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if ( Array.isArray( layout.elements ) ) {
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for ( const element of layout.elements ) {
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const id = element.id || element.name;
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if ( element.inputType ) {
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if ( this.getParameter( id ) === undefined ) this.setParameter( id, null );
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this.getParameter( id ).inputType = element.inputType;
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}
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if ( element.outputType ) {
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if ( this.getOutput( id ) === undefined ) this.setOutput( id, null );
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this.getOutput( id ).outputType = element.outputType;
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}
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}
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}
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}
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return this._object;
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}
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deserialize( data ) {
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super.deserialize( data );
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for ( const name in this.parameters ) {
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let valueNode = this.parameters[ name ];
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if ( valueNode.isScriptableNode ) valueNode = valueNode.getDefaultOutput();
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valueNode.events.addEventListener( 'refresh', this.onRefresh );
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}
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}
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getLayout() {
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return this.getObject().layout;
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}
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getDefaultOutputNode() {
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const output = this.getDefaultOutput().value;
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if ( output && output.isNode ) {
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return output;
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}
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return float();
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}
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getDefaultOutput() {
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return this._exec()._output;
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}
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getMethod() {
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if ( this.needsUpdate ) this.dispose();
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if ( this._method !== null ) return this._method;
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//
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const parametersProps = [ 'parameters', 'local', 'global', 'refresh', 'setOutput', 'THREE', 'TSL' ];
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const interfaceProps = [ 'layout', 'init', 'main', 'dispose' ];
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const properties = interfaceProps.join( ', ' );
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const declarations = 'var ' + properties + '; var output = {};\n';
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const returns = '\nreturn { ...output, ' + properties + ' };';
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const code = declarations + this.codeNode.code + returns;
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//
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this._method = new Function( ...parametersProps, code );
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return this._method;
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}
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dispose() {
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if ( this._method === null ) return;
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if ( this._object && typeof this._object.dispose === 'function' ) {
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this._object.dispose();
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}
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this._method = null;
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this._object = null;
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this._source = null;
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this._value = null;
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this._needsOutputUpdate = true;
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this._output.value = null;
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this._outputs = {};
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}
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setup() {
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return this.getDefaultOutputNode();
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}
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set needsUpdate( value ) {
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if ( value === true ) this.dispose();
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}
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get needsUpdate() {
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return this.source !== this._source;
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}
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_exec() {
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if ( this.codeNode === null ) return this;
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if ( this._needsOutputUpdate === true ) {
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this._value = this.call( 'main' );
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this._needsOutputUpdate = false;
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}
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this._output.value = this._value;
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return this;
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}
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_refresh() {
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this.needsUpdate = true;
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this._exec();
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this._output.refresh();
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}
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}
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export default ScriptableNode;
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export const scriptable = nodeProxy( ScriptableNode );
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addNodeElement( 'scriptable', scriptable );
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addNodeClass( 'ScriptableNode', ScriptableNode );
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