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109 lines
1.7 KiB
109 lines
1.7 KiB
6 months ago
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import { createNodeFromType } from '../core/Node.js';
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import { nodeObject } from '../shadernode/ShaderNode.js';
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import { FileLoader, Loader } from 'three';
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class NodeLoader extends Loader {
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constructor( manager ) {
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super( manager );
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this.textures = {};
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}
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load( url, onLoad, onProgress, onError ) {
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const loader = new FileLoader( this.manager );
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loader.setPath( this.path );
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loader.setRequestHeader( this.requestHeader );
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loader.setWithCredentials( this.withCredentials );
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loader.load( url, ( text ) => {
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try {
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onLoad( this.parse( JSON.parse( text ) ) );
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} catch ( e ) {
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if ( onError ) {
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onError( e );
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} else {
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console.error( e );
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}
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this.manager.itemError( url );
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}
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}, onProgress, onError );
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}
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parseNodes( json ) {
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const nodes = {};
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if ( json !== undefined ) {
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for ( const nodeJSON of json ) {
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const { uuid, type } = nodeJSON;
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nodes[ uuid ] = nodeObject( createNodeFromType( type ) ); // @TODO: Maybe nodeObjectify the node in createNodeFromType?
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nodes[ uuid ].uuid = uuid;
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}
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const meta = { nodes, textures: this.textures };
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for ( const nodeJSON of json ) {
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nodeJSON.meta = meta;
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const node = nodes[ nodeJSON.uuid ];
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node.deserialize( nodeJSON );
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delete nodeJSON.meta;
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}
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}
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return nodes;
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}
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parse( json ) {
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const node = nodeObject( createNodeFromType( json.type ) );
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node.uuid = json.uuid;
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const nodes = this.parseNodes( json.nodes );
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const meta = { nodes, textures: this.textures };
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json.meta = meta;
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node.deserialize( json );
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delete json.meta;
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return node;
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}
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setTextures( value ) {
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this.textures = value;
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return this;
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}
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}
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export default NodeLoader;
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