/**
* @author alteredq / http://alteredqualia.com/
* @author mrdoob / http://mrdoob.com/
* @author WestLangley / http://github.com/WestLangley
*/
export class SpotLightHelper {
   // THREE.SpotLightHelper = function(light) {
   //    THREE.Object3D.call(this);
   //    this.light = light;
   //    this.light.updateMatrixWorld();
   //    this.matrix = light.matrixWorld;
   //    this.matrixAutoUpdate = false;
   //    var geometry = new THREE.CylinderGeometry(0, 1, 1, 8, 1, true);
   //    geometry.translate(0, - 0.5, 0);
   //    geometry.rotateX(- Math.PI / 2);
   //    var material = new THREE.MeshBasicMaterial({ wireframe: true, fog: false });
   //    this.cone = new THREE.Mesh(geometry, material);
   //    this.add(this.cone);
   //    this.update();
   // };
   // THREE.SpotLightHelper.prototype = Object.create(THREE.Object3D.prototype);
   // THREE.SpotLightHelper.prototype.constructor = THREE.SpotLightHelper;
   // THREE.SpotLightHelper.prototype.dispose = function() {
   //    this.cone.geometry.dispose();
   //    this.cone.material.dispose();
   // };
   // THREE.SpotLightHelper.prototype.update = function() {
   //    var vector = new THREE.Vector3();
   //    var vector2 = new THREE.Vector3();
   //    return function() {
   //       var coneLength = this.light.distance ? this.light.distance : 10000;
   //       var coneWidth = coneLength * Math.tan(this.light.angle);
   //       this.cone.scale.set(coneWidth, coneWidth, coneLength);
   //       vector.setFromMatrixPosition(this.light.matrixWorld);
   //       vector2.setFromMatrixPosition(this.light.target.matrixWorld);
   //       this.cone.lookAt(vector2.sub(vector));
   //       this.cone.material.color.copy(this.light.color).multiplyScalar(this.light.intensity);
   //    };
   // } ();
}