# Easy code i don't get **URL:** \ **Category:** Uncategorized\ **Created:** [July 26, 2003, 8:57am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784 "2003-07-26T08:57:58Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![blah\_de\_blah](https://avatars.discourse-cdn.com/v4/letter/b/a8b319/32.png) [@blah\_de\_blah](https://forum.kirupa.com/u/blah_de_blah)\ **Post date:** [July 26, 2003, 8:57am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/1 "2003-07-26T08:57:58Z")
Ok this should be easy, but theres 1 thing that confuses me (this is for a scrollbar btw; not the componenet ones) and i got this from a flash 5 source, but i am using MX… ok there are 3 keyframes. On keyframe 1 there is the code: [AS] oldY = 0; newY = 0; Y = 0; [/AS] Keyframe2 code: [AS] dragY = \_root.dragMC.buttonMC.\_y; newY = oldY+(dragY-oldY)/8; \_root.mainScroll.scrolledMC.\_y = newY; oldY = newY; play(); [/AS] Keyframe3 code: [AS] prevFrame(); [/AS] ok so i get all that, except the line in keyframe 2, if you dont’ get the above, forget it, the bit below is the important bit 🙂 newY = oldY+(dragY-oldY)/8; This line is what is confusing me, because 2 lines under that, it says: oldY = newY. And in the line i just showed you, it says: newY = oldY (…blahblahblah) So if they both equal each other, than whats the point?! I know what i just said was confusing :-\ Hope you can help thanks! ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\ **Post date:** [July 26, 2003, 9:11am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/2 "2003-07-26T09:11:35Z")
What’s the point, huh? None. Remove it!! 😛 [AS]newY += (dragY-newY)/8;[/AS] ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\ **Post date:** [July 26, 2003, 9:17am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/3 "2003-07-26T09:17:54Z")
ok now this is getting mroe confusin… newY += dragy-newy so dragY minus itself?!!? ok anyways this doesn’t seem to work :-\i’ll post the fla for you to see. I’m trying to optimize this crappy flash 5 code to flash MX 🙂 ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\ **Post date:** [July 26, 2003, 9:27am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/4 "2003-07-26T09:27:46Z")
… Where’s the code? :whistle: ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\ **Post date:** [July 26, 2003, 10:03am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/5 "2003-07-26T10:03:01Z")
yea thats what i thogutht the first time i saw it…its in the see through dot on stage…or if you open the library…its in ‘script’. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\ **Post date:** [July 26, 2003, 10:10am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/6 "2003-07-26T10:10:13Z")
I thought I checked every symbol in the Library, I must have missed that one! 😛 ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\ **Post date:** [July 26, 2003, 10:23am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/7 "2003-07-26T10:23:09Z")
heh, you think its possible to ‘optimize’ that code?? It seems a bit messy :-\ ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\ **Post date:** [July 26, 2003, 11:07am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/8 "2003-07-26T11:07:48Z")
Well, I would remove those variables, create the MovieClip by using ActionScript and update the content position by using an onEnterFrame handler. I don’t like static event handlers, so I’d remove them too… Remove the MovieClip _script_ and throw this code in the main timeline: [AS]dragMC.buttonMC.onPress = function() { this.startDrag(false, 0, -1010, 0, 0); }; dragMC.buttonMC.onRelease = function() { this.stopDrag(); }; dragMC.buttonMC.onReleaseOutside = dragMC.buttonMC.onRelease; this.createEmptyMovieClip(“controller”, 9876); controller.onEnterFrame = function() { mainScroll.scrolledMC.\_y += (dragMC.buttonMC.\_y-mainScroll.scrolledMC.\_y)/8; };[/AS] … But I guess that you wanted to somehow automate the process, so you don’t have to hardcode the whole thing (the startDrag parameters, for instance)? :-\ Uhmm… I don’t think I’m explaining myself very well. I’ve never been good at it. 😛 ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\ **Post date:** [July 26, 2003, 11:10am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/9 "2003-07-26T11:10:27Z")
thanks! that looks nice, but what does the createemptymovieclip create?! I know it creates an empty movieclip 😉 But what are we going to use it for? EDIT: ok from what i understand it controls the easing thing right?!but thats only after the user releases the mouse off the dragger :-\ or i think i am wrong actually ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\ **Post date:** [July 26, 2003, 11:17am UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/10 "2003-07-26T11:17:52Z")
It creates the MovieClip which will act as a controller (self explanatory instance name) to move the MovieClip, _scrolledMC_, to the correct position. Now that I think about it, you don’t need that either. Remove those lines of the code and assign the onEnterFrame handler to _scrolledMC_: [AS]mainScroll.scrolledMC.onEnterFrame = function() { this.\_y += (dragMC.buttonMC.\_y-this.\_y)/8; };[/AS] Much better… 😛 ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\ **Post date:** [July 26, 2003, 2:33pm UTC](https://forum.kirupa.com/t/easy-code-i-dont-get/26784/11 "2003-07-26T14:33:45Z")
woo it works !! thanks kax, you are the man 🙂