112 lines
1.4 KiB
JavaScript
112 lines
1.4 KiB
JavaScript
import Node from '../core/Node.js';
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import LightNode from './LightNode.js';
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const sortLights = ( lights ) => {
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return lights.sort( ( a, b ) => a.id - b.id );
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};
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class LightsNode extends Node {
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constructor( lightNodes = [] ) {
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super( 'vec3' );
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this.lightNodes = lightNodes;
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this._hash = null;
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}
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get hasLight() {
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return this.lightNodes.length > 0;
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}
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generate( builder ) {
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const lightNodes = this.lightNodes;
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for ( const lightNode of lightNodes ) {
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lightNode.build( builder );
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}
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return 'vec3( 0.0 )';
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}
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getHash( /*builder*/ ) {
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if ( this._hash === null ) {
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let hash = '';
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const lightNodes = this.lightNodes;
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for ( const lightNode of lightNodes ) {
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hash += lightNode.light.uuid + ' ';
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}
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this._hash = hash;
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}
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return this._hash;
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}
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getLightNodeByHash( hash ) {
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const lightNodes = this.lightNodes;
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for ( const lightNode of lightNodes ) {
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if ( lightNode.light.uuid === hash ) {
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return lightNode;
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}
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}
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return null;
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}
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fromLights( lights ) {
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const lightNodes = [];
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lights = sortLights( lights );
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for ( const light of lights ) {
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let lightNode = this.getLightNodeByHash( light.uuid );
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if ( lightNode === null ) {
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lightNode = new LightNode( light );
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}
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lightNodes.push( lightNode );
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}
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this.lightNodes = lightNodes;
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this._hash = null;
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return this;
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}
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}
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export default LightsNode;
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