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131 lines
2.5 KiB
131 lines
2.5 KiB
6 months ago
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import CodeNode from './CodeNode.js';
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import { addNodeClass } from '../core/Node.js';
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import { nodeObject } from '../shadernode/ShaderNode.js';
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class FunctionNode extends CodeNode {
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constructor( code = '', includes = [], language = '' ) {
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super( code, includes, language );
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this.keywords = {};
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}
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getNodeType( builder ) {
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return this.getNodeFunction( builder ).type;
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}
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getInputs( builder ) {
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return this.getNodeFunction( builder ).inputs;
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}
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getNodeFunction( builder ) {
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const nodeData = builder.getDataFromNode( this );
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let nodeFunction = nodeData.nodeFunction;
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if ( nodeFunction === undefined ) {
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nodeFunction = builder.parser.parseFunction( this.code );
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nodeData.nodeFunction = nodeFunction;
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}
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return nodeFunction;
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}
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generate( builder, output ) {
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super.generate( builder );
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const nodeFunction = this.getNodeFunction( builder );
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const name = nodeFunction.name;
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const type = nodeFunction.type;
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const nodeCode = builder.getCodeFromNode( this, type );
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if ( name !== '' ) {
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// use a custom property name
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nodeCode.name = name;
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}
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const propertyName = builder.getPropertyName( nodeCode );
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let code = this.getNodeFunction( builder ).getCode( propertyName );
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const keywords = this.keywords;
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const keywordsProperties = Object.keys( keywords );
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if ( keywordsProperties.length > 0 ) {
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for ( const property of keywordsProperties ) {
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const propertyRegExp = new RegExp( `\\b${property}\\b`, 'g' );
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const nodeProperty = keywords[ property ].build( builder, 'property' );
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code = code.replace( propertyRegExp, nodeProperty );
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}
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}
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nodeCode.code = code + '\n';
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if ( output === 'property' ) {
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return propertyName;
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} else {
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return builder.format( `${ propertyName }()`, type, output );
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}
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}
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}
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export default FunctionNode;
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const nativeFn = ( code, includes = [], language = '' ) => {
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for ( let i = 0; i < includes.length; i ++ ) {
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const include = includes[ i ];
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// TSL Function: glslFn, wgslFn
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if ( typeof include === 'function' ) {
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includes[ i ] = include.functionNode;
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}
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}
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const functionNode = nodeObject( new FunctionNode( code, includes, language ) );
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const fn = ( ...params ) => functionNode.call( ...params );
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fn.functionNode = functionNode;
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return fn;
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};
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export const glslFn = ( code, includes ) => nativeFn( code, includes, 'glsl' );
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export const wgslFn = ( code, includes ) => nativeFn( code, includes, 'wgsl' );
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addNodeClass( 'FunctionNode', FunctionNode );
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