Требуется зациклить анимацию

(function($) { 
  $.fn.uspSlider = function(options) { 
 
    var settings = $.extend({ 
      'widthSliderResize': 1000, 
      'countElements': 3, 
      'tagDOM': 'li', 
      'showClassAppendAndPrepend': true, 
      'showDebugElements': true, 
      'duration': 7000, 
      'easing': 'linear' 
    }, options); 
 
    var mainContainer = this; 
 
    var sliderController = { 
      items: [], 
      itemsCloned: { 
        append: [], 
        prepend: [] 
      }, 
      width: 0, 
      fullWidth: 0, 
      fullWidthWithMargin: 0, 
      countElements: settings['countElements'], 
      tagDOM: settings['tagDOM'], 
      margin: { 
        container: '0 0 0 0', 
        element: '0 10px 0 0', 
        _left: 0, 
        _right: 10, 
        lastChildElement: false 
      } 
    }; 
 
    var methods = { 
      _init: function() { 
 
        $(sliderController.tagDOM, mainContainer).each(function() { 
          sliderController.items.push($(this)); 
          sliderController.width += $(this).outerWidth(true); 
        }); 
 
        var sliderItemsLength = sliderController.items.length; 
 
        for (var i = 0; i < sliderItemsLength; i++) { 
          var j = sliderItemsLength - (i + 1); 
          sliderController.items[i].clone().addClass('cloned append').appendTo(mainContainer); 
          sliderController.items[j].clone().addClass('cloned prepend').prependTo(mainContainer); 
        } 
 
        var sliderContainerAllElemetsLength = sliderController.countElements * sliderController.countElements; 
 
        $(sliderController.tagDOM, mainContainer).each(function(index) { 
          if ($(this).hasClass('append')) { 
            sliderController.itemsCloned.append.push($(this)); 
          } else if ($(this).hasClass('prepend')) { 
            sliderController.itemsCloned.prepend.push($(this)); 
          } 
 
          if (!settings['showClassAppendAndPrepend']) { 
            $(this).removeClass('append prepend'); 
          } 
 
          if (index < sliderContainerAllElemetsLength - 1 && !sliderController.margin.lastChildElement) { 
            $(this).css('margin', sliderController.margin.element); 
          } 
        }); 
 
        var widthWithMargin = (sliderContainerAllElemetsLength * (sliderController.margin._right + sliderController.margin._left)); 
 
        sliderController.fullWidth = ((sliderController.width * sliderController.countElements) + widthWithMargin); 
 
        sliderController.fullWidthWithMargin = sliderController.fullWidth + widthWithMargin; 
 
        mainContainer.width(sliderController.fullWidth); 
 
        if (settings['showDebugElements']) { 
          console.table(sliderController); 
        } 
 
        methods.uspBlockController(); 
      }, 
      _destroy: function() { 
        console.log('Destroy here!'); 
      }, 
      uspBlockController: function() { 
        var windowInnerWidth = window.innerWidth; 
 
        var controlClonedSliderElements = function(value) { 
          $(sliderController.tagDOM, mainContainer).each(function(index) { 
            if ($(this).hasClass('cloned')) { 
              value ? $(this).removeClass('cloned-disable') : $(this).addClass('cloned-disable'); 
            } 
          }); 
        } 
 
        if (windowInnerWidth < settings['widthSliderResize']) { 
          mainContainer.addClass('activeMobileUSP') 
 
          if (sliderController.items.length <= 0) { 
            methods._init(); 
          } 
 
          controlClonedSliderElements(true); 
 
          mainContainer.width(sliderController.fullWidth); 
 
          var count = 1 
          tmpCount = 1, 
            itemsPositionLeft = []; 
 
          var animated = function(element) { 
            element.animate({ 
              uspWidth: sliderController.fullWidth 
            }, { 
              step: function(widthForFirstAnimate, fx) { 
 
                $(this).css('-webkit-transform', "translate(" + -widthForFirstAnimate + "px, 0)"); 
 
                var checkedAnimate = function() { 
                  if (mainContainer.find(sliderController.tagDOM + ':nth-child(' + count + ')').is(':offscreen')) { 
 
                    var thisElement = mainContainer.find(sliderController.tagDOM + ':nth-child(' + count + ')'); 
 
                    itemsPositionLeft.push(widthForFirstAnimate); 
 
                    function tmpAnimate(tmpElement) { 
 
                      console.log(tmpElement); 
 
                      tmpElement.stop(true, false); 
 
                      tmpElement.animate({ 
                        uspWidth: sliderController.fullWidth + itemsPositionLeft[tmpElement.index()] 
                      }, { 
                        start: function() { 
                          console.log(tmpElement.index()); 
 
                          tmpCount++; 
 
                          if (tmpCount > (sliderController.countElements * sliderController.countElements)) { 
                            tmpCount = 1; 
                          } 
                        }, 
                        step: function(widthForSecondAnimate, fx) { 
                          var stepVariable = 40; // Переменная которая отвечает за прижимание к левому краю первоначального animate 
 
                          $(this).find('a').css("color", "red"); 
 
                          $(this).css("-webkit-transform", "translate(" + (-widthForSecondAnimate + sliderController.fullWidth - stepVariable) + "px, 0)"); 
 
                          if ($(this).is(':offscreen') && ($(this).index() + 1) == tmpCount) { 
 
                            // Тому элементу, который скрылся за левую часть экрана, обновляем анимацию. 
 
                            tmpAnimate(mainContainer.find(sliderController.tagDOM + ':nth-child(' + tmpCount + ')')); 
 
                          } 
                        }, 
                        duration: settings['duration'], 
                        easing: settings['easing'] 
                      }); 
                    }; 
 
                    count++; 
 
                    if (count > (sliderController.countElements * sliderController.countElements)) { 
                      count = 1; 
                    } 
 
                    tmpAnimate(thisElement); 
                  } 
                } 
 
                checkedAnimate(); 
              }, 
              duration: settings['duration'], 
              easing: settings['easing'] 
            }); 
          }; 
 
          animated(mainContainer.find(sliderController.tagDOM)); 
 
        } else if (windowInnerWidth > settings['widthSliderResize'] && 
          mainContainer.hasClass('activeMobileUSP')) { 
          mainContainer.removeClass('activeMobileUSP'); 
 
          controlClonedSliderElements(false); 
 
          mainContainer.find(sliderController.tagDOM).stop(true, true).animate({ 
            uspWidth: 0 
          }).css('-webkit-transform', "translate(0, 0)").width('auto'); 
 
          mainContainer.width('auto'); 
        } 
      } 
    } 
 
    $(window).resize(function() { 
      methods.uspBlockController(); 
    }); 
 
    $.expr.filters.offscreen = function(el) { 
      var rect = el.getBoundingClientRect(); 
      return ( 
        (rect.x + rect.width) < 0 || 
        (rect.y + rect.height) < 0 || 
        (rect.x > window.innerWidth || rect.y > window.innerHeight) 
      ); 
    }; 
 
    methods.uspBlockController(); 
  }; 
 
  $('.usp-block-container').find('.usp-block-details').uspSlider({ 
    'widthSliderResize': 486, 
    'showClassAppendAndPrepend': true, 
    'showDebugElements': false 
  }); 
 
})(jQuery);

html, 
body { 
  margin: 0; 
  padding: 0; 
} 
 
h1 { 
  text-align: center; 
} 
 
.usp-block-container { 
  width: 100%; 
  background-color: black; 
  overflow: hidden; 
} 
 
.usp-block-details { 
  color: white; 
  text-align: center; 
  padding: 15px 0; 
  margin: 0 auto; 
} 
 
.usp-block-details .item { 
  display: inline-block; 
  text-transform: uppercase; 
  margin-right: 10px; 
} 
 
.usp-block-details .item a { 
  color: white; 
  font-family: 'Consolas', sans-serif; 
  font-size: 16px; 
  text-decoration: none; 
} 
 
.usp-block-details .item:last-child { 
  margin-right: 0; 
} 
 
 
/* Style for usp-controller */ 
 
.cloned-disable { 
  display: none !important; 
}

<script src="https://code.jquery.com/jquery-1.10.2.js"></script> 
 
<h1>USP loop</h1> 
<div class="usp-block-container"> 
  <ul class="usp-block-details"> 
    <li class="item"><a href="">First</a></li> 
    <li class="item"><a href="">Second</a></li> 
    <li class="item"><a href="">Third</a></li> 
  </ul> 
</div>