three.js/examples/jsm/nodes/inputs/Vector3Node.js

import { Vector3 } from '../../../../build/three.module.js';

import { InputNode } from '../core/InputNode.js';
import { NodeUtils } from '../core/NodeUtils.js';

function Vector3Node( x, y, z ) {

	InputNode.call( this, 'v3' );

	this.value = x instanceof Vector3 ? x : new Vector3( x, y, z );

}

Vector3Node.prototype = Object.create( InputNode.prototype );
Vector3Node.prototype.constructor = Vector3Node;
Vector3Node.prototype.nodeType = 'Vector3';

NodeUtils.addShortcuts( Vector3Node.prototype, 'value', [ 'x', 'y', 'z' ] );

Vector3Node.prototype.generateReadonly = function ( builder, output, uuid, type/*, ns, needsUpdate*/ ) {

	return builder.format( 'vec3( ' + this.x + ', ' + this.y + ', ' + this.z + ' )', type, output );

};

Vector3Node.prototype.copy = function ( source ) {

	InputNode.prototype.copy.call( this, source );

	this.value.copy( source );

	return this;

};

Vector3Node.prototype.toJSON = function ( meta ) {

	var data = this.getJSONNode( meta );

	if ( ! data ) {

		data = this.createJSONNode( meta );

		data.x = this.x;
		data.y = this.y;
		data.z = this.z;

		if ( this.readonly === true ) data.readonly = true;

	}

	return data;

};

export { Vector3Node };