text: import {
  	AnimationClip,
  	AnimationMixer,
  	Mesh
  } from "../../../build/three.module.js";
  
  var MorphAnimMesh = function ( geometry, material ) {
  
  	Mesh.call( this, geometry, material );
  
  	this.type = 'MorphAnimMesh';
  
  	this.mixer = new AnimationMixer( this );
  	this.activeAction = null;
  
  };
  
  MorphAnimMesh.prototype = Object.create( Mesh.prototype );
  MorphAnimMesh.prototype.constructor = MorphAnimMesh;
  
  MorphAnimMesh.prototype.setDirectionForward = function () {
  
  	this.mixer.timeScale = 1.0;
  
  };
  
  MorphAnimMesh.prototype.setDirectionBackward = function () {
  
  	this.mixer.timeScale = - 1.0;
  
  };
  
  MorphAnimMesh.prototype.playAnimation = function ( label, fps ) {
  
  	if ( this.activeAction ) {
  
  		this.activeAction.stop();
  		this.activeAction = null;
  
  	}
  
  	var clip = AnimationClip.findByName( this, label );
  
  	if ( clip ) {
  
  		var action = this.mixer.clipAction( clip );
  		action.timeScale = ( clip.tracks.length * fps ) / clip.duration;
  		this.activeAction = action.play();
  
  	} else {
  
  		throw new Error( 'THREE.MorphAnimMesh: animations[' + label + '] undefined in .playAnimation()' );
  
  	}
  
  };
  
  MorphAnimMesh.prototype.updateAnimation = function ( delta ) {
  
  	this.mixer.update( delta );
  
  };
  
  MorphAnimMesh.prototype.copy = function ( source ) {
  
  	Mesh.prototype.copy.call( this, source );
  
  	this.mixer = new AnimationMixer( this );
  
  	return this;
  
  };
  
  export { MorphAnimMesh };
  