backend/libs/three/helpers/PointLightHelper.js

import { Mesh } from '../objects/Mesh.js';
import { MeshBasicMaterial } from '../materials/MeshBasicMaterial.js';
import { SphereGeometry } from '../geometries/SphereGeometry.js';

class PointLightHelper extends Mesh {
	constructor(light, sphereSize, color) {
		const geometry = new SphereGeometry(sphereSize, 4, 2);
		const material = new MeshBasicMaterial({ wireframe: true, fog: false, toneMapped: false });

		super(geometry, material);

		this.light = light;
		this.light.updateMatrixWorld();

		this.color = color;

		this.type = 'PointLightHelper';

		this.matrix = this.light.matrixWorld;
		this.matrixAutoUpdate = false;

		this.update();

		/*
	// TODO: delete this comment?
	const distanceGeometry = new THREE.IcosahedronBufferGeometry( 1, 2 );
	const distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );

	this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
	this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );

	const d = light.distance;

	if ( d === 0.0 ) {

		this.lightDistance.visible = false;

	} else {

		this.lightDistance.scale.set( d, d, d );

	}

	this.add( this.lightDistance );
	*/
	}

	dispose() {
		this.geometry.dispose();
		this.material.dispose();
	}

	update() {
		if (this.color !== undefined) {
			this.material.color.set(this.color);
		} else {
			this.material.color.copy(this.light.color);
		}

		/*
		const d = this.light.distance;

		if ( d === 0.0 ) {

			this.lightDistance.visible = false;

		} else {

			this.lightDistance.visible = true;
			this.lightDistance.scale.set( d, d, d );

		}
		*/
	}
}

export { PointLightHelper };