96 lines
1.9 KiB
JavaScript
96 lines
1.9 KiB
JavaScript
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import { Object3D } from '../core/Object3D.js';
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import { Color } from '../math/Color.js';
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/**
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* Abstract base class for lights - all other light types inherit the
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* properties and methods described here.
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*
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* @abstract
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* @augments Object3D
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*/
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class Light extends Object3D {
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/**
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* Constructs a new light.
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*
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* @param {(number|Color|string)} [color=0xffffff] - The light's color.
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* @param {number} [intensity=1] - The light's strength/intensity.
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*/
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constructor( color, intensity = 1 ) {
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super();
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/**
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* This flag can be used for type testing.
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*
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* @type {boolean}
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* @readonly
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* @default true
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*/
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this.isLight = true;
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this.type = 'Light';
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/**
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* The light's color.
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*
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* @type {Color}
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*/
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this.color = new Color( color );
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/**
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* The light's intensity.
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*
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* @type {number}
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* @default 1
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*/
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this.intensity = intensity;
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}
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/**
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* Frees the GPU-related resources allocated by this instance. Call this
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* method whenever this instance is no longer used in your app.
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*/
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dispose() {
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// Empty here in base class; some subclasses override.
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}
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copy( source, recursive ) {
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super.copy( source, recursive );
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this.color.copy( source.color );
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this.intensity = source.intensity;
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return this;
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}
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toJSON( meta ) {
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const data = super.toJSON( meta );
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data.object.color = this.color.getHex();
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data.object.intensity = this.intensity;
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if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();
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if ( this.distance !== undefined ) data.object.distance = this.distance;
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if ( this.angle !== undefined ) data.object.angle = this.angle;
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if ( this.decay !== undefined ) data.object.decay = this.decay;
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if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;
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if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();
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if ( this.target !== undefined ) data.object.target = this.target.uuid;
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return data;
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}
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}
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export { Light };
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