/**
* @author alteredq / http://alteredqualia.com/
*/
export class MorphBlendMesh {
   // THREE.MorphBlendMesh = function(geometry, material) {
   //    THREE.Mesh.call(this, geometry, material);
   //    this.animationsMap = {};
   //    this.animationsList = [];
   //    // prepare default animation
   //    // (all frames played together in 1 second)
   //    var numFrames = this.geometry.morphTargets.length;
   //    var name = "__default";
   //    var startFrame = 0;
   //    var endFrame = numFrames - 1;
   //    var fps = numFrames / 1;
   //    this.createAnimation(name, startFrame, endFrame, fps);
   //    this.setAnimationWeight(name, 1);
   // };
   // THREE.MorphBlendMesh.prototype = Object.create(THREE.Mesh.prototype);
   // THREE.MorphBlendMesh.prototype.constructor = THREE.MorphBlendMesh;
   // THREE.MorphBlendMesh.prototype.createAnimation = function(name, start, end, fps) {
   //    var animation = {
   //       start: start,
   //       end: end,
   //       length: end - start + 1,
   //       fps: fps,
   //       duration: (end - start) / fps,
   //       lastFrame: 0,
   //       currentFrame: 0,
   //       active: false,
   //       time: 0,
   //       direction: 1,
   //       weight: 1,
   //       directionBackwards: false,
   //       mirroredLoop: false
   //    };
   //    this.animationsMap[name] = animation;
   //    this.animationsList.push(animation);
   // };
   // THREE.MorphBlendMesh.prototype.autoCreateAnimations = function(fps) {
   //    var pattern = /([a-z]+)_?(\d+)/i;
   //    var firstAnimation, frameRanges = {};
   //    var geometry = this.geometry;
   //    for (var i = 0, il = geometry.morphTargets.length; i < il; i++) {
   //       var morph = geometry.morphTargets[i];
   //       var chunks = morph.name.match(pattern);
   //       if (chunks && chunks.length > 1) {
   //          var name = chunks[1];
   //          if (!frameRanges[name]) frameRanges[name] = { start: Infinity, end: - Infinity };
   //          var range = frameRanges[name];
   //          if (i < range.start) range.start = i;
   //          if (i > range.end) range.end = i;
   //          if (!firstAnimation) firstAnimation = name;
   //       }
   //    }
   //    for (var name in frameRanges) {
   //       var range = frameRanges[name];
   //       this.createAnimation(name, range.start, range.end, fps);
   //    }
   //    this.firstAnimation = firstAnimation;
   // };
   // THREE.MorphBlendMesh.prototype.setAnimationDirectionForward = function(name) {
   //    var animation = this.animationsMap[name];
   //    if (animation) {
   //       animation.direction = 1;
   //       animation.directionBackwards = false;
   //    }
   // };
   // THREE.MorphBlendMesh.prototype.setAnimationDirectionBackward = function(name) {
   //    var animation = this.animationsMap[name];
   //    if (animation) {
   //       animation.direction = - 1;
   //       animation.directionBackwards = true;
   //    }
   // };
   // THREE.MorphBlendMesh.prototype.setAnimationFPS = function(name, fps) {
   //    var animation = this.animationsMap[name];
   //    if (animation) {
   //       animation.fps = fps;
   //       animation.duration = (animation.end - animation.start) / animation.fps;
   //    }
   // };
   // THREE.MorphBlendMesh.prototype.setAnimationDuration = function(name, duration) {
   //    var animation = this.animationsMap[name];
   //    if (animation) {
   //       animation.duration = duration;
   //       animation.fps = (animation.end - animation.start) / animation.duration;
   //    }
   // };
   // THREE.MorphBlendMesh.prototype.setAnimationWeight = function(name, weight) {
   //    var animation = this.animationsMap[name];
   //    if (animation) {
   //       animation.weight = weight;
   //    }
   // };
   // THREE.MorphBlendMesh.prototype.setAnimationTime = function(name, time) {
   //    var animation = this.animationsMap[name];
   //    if (animation) {
   //       animation.time = time;
   //    }
   // };
   // THREE.MorphBlendMesh.prototype.getAnimationTime = function(name) {
   //    var time = 0;
   //    var animation = this.animationsMap[name];
   //    if (animation) {
   //       time = animation.time;
   //    }
   //    return time;
   // };
   // THREE.MorphBlendMesh.prototype.getAnimationDuration = function(name) {
   //    var duration = - 1;
   //    var animation = this.animationsMap[name];
   //    if (animation) {
   //       duration = animation.duration;
   //    }
   //    return duration;
   // };
   // THREE.MorphBlendMesh.prototype.playAnimation = function(name) {
   //    var animation = this.animationsMap[name];
   //    if (animation) {
   //       animation.time = 0;
   //       animation.active = true;
   //    } else {
   //       console.warn("THREE.MorphBlendMesh: animation[" + name + "] undefined in .playAnimation()");
   //    }
   // };
   // THREE.MorphBlendMesh.prototype.stopAnimation = function(name) {
   //    var animation = this.animationsMap[name];
   //    if (animation) {
   //       animation.active = false;
   //    }
   // };
   // THREE.MorphBlendMesh.prototype.update = function(delta) {
   //    for (var i = 0, il = this.animationsList.length; i < il; i++) {
   //       var animation = this.animationsList[i];
   //       if (!animation.active) continue;
   //       var frameTime = animation.duration / animation.length;
   //       animation.time += animation.direction * delta;
   //       if (animation.mirroredLoop) {
   //          if (animation.time > animation.duration || animation.time < 0) {
   //             animation.direction *= - 1;
   //             if (animation.time > animation.duration) {
   //                animation.time = animation.duration;
   //                animation.directionBackwards = true;
   //             }
   //             if (animation.time < 0) {
   //                animation.time = 0;
   //                animation.directionBackwards = false;
   //             }
   //          }
   //       } else {
   //          animation.time = animation.time % animation.duration;
   //          if (animation.time < 0) animation.time += animation.duration;
   //       }
   //       var keyframe = animation.start + THREE.Math.clamp(Math.floor(animation.time / frameTime), 0, animation.length - 1);
   //       var weight = animation.weight;
   //       if (keyframe !== animation.currentFrame) {
   //          this.morphTargetInfluences[animation.lastFrame] = 0;
   //          this.morphTargetInfluences[animation.currentFrame] = 1 * weight;
   //          this.morphTargetInfluences[keyframe] = 0;
   //          animation.lastFrame = animation.currentFrame;
   //          animation.currentFrame = keyframe;
   //       }
   //       var mix = (animation.time % frameTime) / frameTime;
   //       if (animation.directionBackwards) mix = 1 - mix;
   //       if (animation.currentFrame !== animation.lastFrame) {
   //          this.morphTargetInfluences[animation.currentFrame] = mix * weight;
   //          this.morphTargetInfluences[animation.lastFrame] = (1 - mix) * weight;
   //       } else {
   //          this.morphTargetInfluences[animation.currentFrame] = weight;
   //       }
   //    }
   // };
}