求助，zepto的touch模块怎么改写seajs模块？

// Zepto.js
// (c) 2010-2016 Thomas Fuchs
// Zepto.js may be freely distributed under the MIT license.
define(function(require, exports, module){
;(function($){
var touch = {},

touchTimeout, tapTimeout, swipeTimeout, longTapTimeout,
longTapDelay = 750,
gesture

function swipeDirection(x1, x2, y1, y2) {

return Math.abs(x1 - x2) >=
  Math.abs(y1 - y2) ? (x1 - x2 > 0 ? 'Left' : 'Right') : (y1 - y2 > 0 ? 'Up' : 'Down')

}

function longTap() {

longTapTimeout = null
if (touch.last) {
  touch.el.trigger('longTap')
  touch = {}
}

}

function cancelLongTap() {

if (longTapTimeout) clearTimeout(longTapTimeout)
longTapTimeout = null

}

function cancelAll() {

if (touchTimeout) clearTimeout(touchTimeout)
if (tapTimeout) clearTimeout(tapTimeout)
if (swipeTimeout) clearTimeout(swipeTimeout)
if (longTapTimeout) clearTimeout(longTapTimeout)
touchTimeout = tapTimeout = swipeTimeout = longTapTimeout = null
touch = {}

}

function isPrimaryTouch(event){

return (event.pointerType == 'touch' ||
  event.pointerType == event.MSPOINTER_TYPE_TOUCH)
  && event.isPrimary

}

function isPointerEventType(e, type){

return (e.type == 'pointer'+type ||
  e.type.toLowerCase() == 'mspointer'+type)

}

$(document).ready(function(){

var now, delta, deltaX = 0, deltaY = 0, firstTouch, _isPointerType

if ('MSGesture' in window) {
  gesture = new MSGesture()
  gesture.target = document.body
}

$(document)
  .bind('MSGestureEnd', function(e){
    var swipeDirectionFromVelocity =
      e.velocityX > 1 ? 'Right' : e.velocityX < -1 ? 'Left' : e.velocityY > 1 ? 'Down' : e.velocityY < -1 ? 'Up' : null;
    if (swipeDirectionFromVelocity) {
      touch.el.trigger('swipe')
      touch.el.trigger('swipe'+ swipeDirectionFromVelocity)
    }
  })
  .on('touchstart MSPointerDown pointerdown', function(e){
    if((_isPointerType = isPointerEventType(e, 'down')) &&
      !isPrimaryTouch(e)) return
    firstTouch = _isPointerType ? e : e.touches[0]
    if (e.touches && e.touches.length === 1 && touch.x2) {
      // Clear out touch movement data if we have it sticking around
      // This can occur if touchcancel doesn't fire due to preventDefault, etc.
      touch.x2 = undefined
      touch.y2 = undefined
    }
    now = Date.now()
    delta = now - (touch.last || now)
    touch.el = $('tagName' in firstTouch.target ?
      firstTouch.target : firstTouch.target.parentNode)
    touchTimeout && clearTimeout(touchTimeout)
    touch.x1 = firstTouch.pageX
    touch.y1 = firstTouch.pageY
    if (delta > 0 && delta <= 250) touch.isDoubleTap = true
    touch.last = now
    longTapTimeout = setTimeout(longTap, longTapDelay)
    // adds the current touch contact for IE gesture recognition
    if (gesture && _isPointerType) gesture.addPointer(e.pointerId);
  })
  .on('touchmove MSPointerMove pointermove', function(e){
    if((_isPointerType = isPointerEventType(e, 'move')) &&
      !isPrimaryTouch(e)) return
    firstTouch = _isPointerType ? e : e.touches[0]
    cancelLongTap()
    touch.x2 = firstTouch.pageX
    touch.y2 = firstTouch.pageY

    deltaX += Math.abs(touch.x1 - touch.x2)
    deltaY += Math.abs(touch.y1 - touch.y2)
  })
  .on('touchend MSPointerUp pointerup', function(e){
    if((_isPointerType = isPointerEventType(e, 'up')) &&
      !isPrimaryTouch(e)) return
    cancelLongTap()

    // swipe
    if ((touch.x2 && Math.abs(touch.x1 - touch.x2) > 30) ||
        (touch.y2 && Math.abs(touch.y1 - touch.y2) > 30))

      swipeTimeout = setTimeout(function() {
        touch.el.trigger('swipe')
        touch.el.trigger('swipe' + (swipeDirection(touch.x1, touch.x2, touch.y1, touch.y2)))
        touch = {}
      }, 0)

    // normal tap
    else if ('last' in touch)
      // don't fire tap when delta position changed by more than 30 pixels,
      // for instance when moving to a point and back to origin
      if (deltaX < 30 && deltaY < 30) {
        // delay by one tick so we can cancel the 'tap' event if 'scroll' fires
        // ('tap' fires before 'scroll')
        tapTimeout = setTimeout(function() {

          // trigger universal 'tap' with the option to cancelTouch()
          // (cancelTouch cancels processing of single vs double taps for faster 'tap' response)
          var event = $.Event('tap')
          event.cancelTouch = cancelAll
          touch.el.trigger(event)

          // trigger double tap immediately
          if (touch.isDoubleTap) {
            if (touch.el) touch.el.trigger('doubleTap')
            touch = {}
          }

          // trigger single tap after 250ms of inactivity
          else {
            touchTimeout = setTimeout(function(){
              touchTimeout = null
              if (touch.el) touch.el.trigger('singleTap')
              touch = {}
            }, 250)
          }
        }, 0)
      } else {
        touch = {}
      }
      deltaX = deltaY = 0

  })
  // when the browser window loses focus,
  // for example when a modal dialog is shown,
  // cancel all ongoing events
  .on('touchcancel MSPointerCancel pointercancel', cancelAll)

// scrolling the window indicates intention of the user
// to scroll, not tap or swipe, so cancel all ongoing events
$(window).on('scroll', cancelAll)

})

;['swipe', 'swipeLeft', 'swipeRight', 'swipeUp', 'swipeDown',

'doubleTap', 'tap', 'singleTap', 'longTap'].forEach(function(eventName){
$.fn[eventName] = function(callback){ return this.on(eventName, callback) }

})
})(Zepto)

module.exports = ???;
});

上面是touch.js的源码，我加上了define包裹，但是怎么让zepto访问到这个模块我不知道怎么写？

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为什么要zepto访问这个模块，让这个模块访问zepto不就好了么。你想要做什么？