text: const {
  	AnimationClip,
  	BooleanKeyframeTrack,
  	ColorKeyframeTrack,
  	NumberKeyframeTrack,
  	Vector3,
  	VectorKeyframeTrack
  } = require( "../../../build/three.node.js" );
  
  var AnimationClipCreator = function () {};
  
  AnimationClipCreator.CreateRotationAnimation = function ( period, axis ) {
  
  	var times = [ 0, period ], values = [ 0, 360 ];
  
  	axis = axis || 'x';
  	var trackName = '.rotation[' + axis + ']';
  
  	var track = new NumberKeyframeTrack( trackName, times, values );
  
  	return new AnimationClip( null, period, [ track ] );
  
  };
  
  AnimationClipCreator.CreateScaleAxisAnimation = function ( period, axis ) {
  
  	var times = [ 0, period ], values = [ 0, 1 ];
  
  	axis = axis || 'x';
  	var trackName = '.scale[' + axis + ']';
  
  	var track = new NumberKeyframeTrack( trackName, times, values );
  
  	return new AnimationClip( null, period, [ track ] );
  
  };
  
  AnimationClipCreator.CreateShakeAnimation = function ( duration, shakeScale ) {
  
  	var times = [], values = [], tmp = new Vector3();
  
  	for ( var i = 0; i < duration * 10; i ++ ) {
  
  		times.push( i / 10 );
  
  		tmp.set( Math.random() * 2.0 - 1.0, Math.random() * 2.0 - 1.0, Math.random() * 2.0 - 1.0 ).
  			multiply( shakeScale ).
  			toArray( values, values.length );
  
  	}
  
  	var trackName = '.position';
  
  	var track = new VectorKeyframeTrack( trackName, times, values );
  
  	return new AnimationClip( null, duration, [ track ] );
  
  };
  
  
  AnimationClipCreator.CreatePulsationAnimation = function ( duration, pulseScale ) {
  
  	var times = [], values = [], tmp = new Vector3();
  
  	for ( var i = 0; i < duration * 10; i ++ ) {
  
  		times.push( i / 10 );
  
  		var scaleFactor = Math.random() * pulseScale;
  		tmp.set( scaleFactor, scaleFactor, scaleFactor ).
  			toArray( values, values.length );
  
  	}
  
  	var trackName = '.scale';
  
  	var track = new VectorKeyframeTrack( trackName, times, values );
  
  	return new AnimationClip( null, duration, [ track ] );
  
  };
  
  
  AnimationClipCreator.CreateVisibilityAnimation = function ( duration ) {
  
  	var times = [ 0, duration / 2, duration ], values = [ true, false, true ];
  
  	var trackName = '.visible';
  
  	var track = new BooleanKeyframeTrack( trackName, times, values );
  
  	return new AnimationClip( null, duration, [ track ] );
  
  };
  
  
  AnimationClipCreator.CreateMaterialColorAnimation = function ( duration, colors ) {
  
  	var times = [], values = [],
  		timeStep = duration / colors.length;
  
  	for ( var i = 0; i <= colors.length; i ++ ) {
  
  		times.push( i * timeStep );
  		values.push( colors[ i % colors.length ] );
  
  	}
  
  	var trackName = '.material[0].color';
  
  	var track = new ColorKeyframeTrack( trackName, times, values );
  
  	return new AnimationClip( null, duration, [ track ] );
  
  };
  
  module.exports = { AnimationClipCreator };
  