@openhps/core/dist/esm/three/lights/Light.js

Open Hybrid Positioning System - Core component

import { Object3D } from '../core/Object3D.js';
import { Color } from '../math/Color.js';

/**
 * Abstract base class for lights - all other light types inherit the
 * properties and methods described here.
 *
 * @abstract
 * @augments Object3D
 */
class Light extends Object3D {
  /**
   * Constructs a new light.
   *
   * @param {(number|Color|string)} [color=0xffffff] - The light's color.
   * @param {number} [intensity=1] - The light's strength/intensity.
   */
  constructor(color, intensity = 1) {
    super();

    /**
     * This flag can be used for type testing.
     *
     * @type {boolean}
     * @readonly
     * @default true
     */
    this.isLight = true;
    this.type = 'Light';

    /**
     * The light's color.
     *
     * @type {Color}
     */
    this.color = new Color(color);

    /**
     * The light's intensity.
     *
     * @type {number}
     * @default 1
     */
    this.intensity = intensity;
  }

  /**
   * Frees the GPU-related resources allocated by this instance. Call this
   * method whenever this instance is no longer used in your app.
   */
  dispose() {

    // Empty here in base class; some subclasses override.
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.color.copy(source.color);
    this.intensity = source.intensity;
    return this;
  }
  toJSON(meta) {
    const data = super.toJSON(meta);
    data.object.color = this.color.getHex();
    data.object.intensity = this.intensity;
    if (this.groundColor !== undefined) data.object.groundColor = this.groundColor.getHex();
    if (this.distance !== undefined) data.object.distance = this.distance;
    if (this.angle !== undefined) data.object.angle = this.angle;
    if (this.decay !== undefined) data.object.decay = this.decay;
    if (this.penumbra !== undefined) data.object.penumbra = this.penumbra;
    if (this.shadow !== undefined) data.object.shadow = this.shadow.toJSON();
    if (this.target !== undefined) data.object.target = this.target.uuid;
    return data;
  }
}
export { Light };