text: import easingFuncs from './easing.js';
  import { isFunction, noop } from '../core/util.js';
  import { createCubicEasingFunc } from './cubicEasing.js';
  var Clip = (function () {
      function Clip(opts) {
          this._inited = false;
          this._startTime = 0;
          this._pausedTime = 0;
          this._paused = false;
          this._life = opts.life || 1000;
          this._delay = opts.delay || 0;
          this.loop = opts.loop || false;
          this.onframe = opts.onframe || noop;
          this.ondestroy = opts.ondestroy || noop;
          this.onrestart = opts.onrestart || noop;
          opts.easing && this.setEasing(opts.easing);
      }
      Clip.prototype.step = function (globalTime, deltaTime) {
          if (!this._inited) {
              this._startTime = globalTime + this._delay;
              this._inited = true;
          }
          if (this._paused) {
              this._pausedTime += deltaTime;
              return;
          }
          var life = this._life;
          var elapsedTime = globalTime - this._startTime - this._pausedTime;
          var percent = elapsedTime / life;
          if (percent < 0) {
              percent = 0;
          }
          percent = Math.min(percent, 1);
          var easingFunc = this.easingFunc;
          var schedule = easingFunc ? easingFunc(percent) : percent;
          this.onframe(schedule);
          if (percent === 1) {
              if (this.loop) {
                  var remainder = elapsedTime % life;
                  this._startTime = globalTime - remainder;
                  this._pausedTime = 0;
                  this.onrestart();
              }
              else {
                  return true;
              }
          }
          return false;
      };
      Clip.prototype.pause = function () {
          this._paused = true;
      };
      Clip.prototype.resume = function () {
          this._paused = false;
      };
      Clip.prototype.setEasing = function (easing) {
          this.easing = easing;
          this.easingFunc = isFunction(easing)
              ? easing
              : easingFuncs[easing] || createCubicEasingFunc(easing);
      };
      return Clip;
  }());
  export default Clip;
  