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Steven P123

[Solved - user error] Control the main timeline from a tweened clip?

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I have a number of clips set to autoAlpha:0, each on their own layer. I have set up a TimelineMax with pause, resume, and reverse buttons all on the stage. These work just fine.


On each tweened clip, I want to set up buttons to pause the timeline (and popup a larger image). Unfortunately, when I put the button listener on the top level (not in a scene but at the top) of the project, I am greeted with the 1120 "undefined property" error. So, I put the listener on a layer within the child clip, and a trace function that works just fine. Unfortunately, I don't know how to reach the parent's TimelinMax instance. I don't even know if this is a child/parent relationship, truth be told.


Unable to upload a mini fla (Error No file was selected for upload)


Here is (I think) the relative code:


top level:

import com.greensock.*;
import flash.events.MouseEvent;
import com.greensock.easing.*;

//create line
var line:Shape = new Shape();

//position mc at first point
mc.alpha = 0; // calling lineDraw sets alpha '1' each time
mc.x = mc_dot01_08_21_22.x;
mc.y = mc_dot01_08_21_22.y;

var tl:TimelineMax = new TimelineMax({paused:true,onUpdate:drawLine});
var routeLegVar:Number = 5;
var dotPopVar:Number = 0.5;
var grpFadeVar:Number = 1;
var repeatDlyVar:Number = routeLegVar - (2 * grpFadeVar);
  tl.insert( TweenLite.to(mc, routeLegVar, {x:mc_dot02_07_10.x, y:mc_dot02_07_10.y, onComplete:functionLineClear}), "label_01");

// dots
tl.insert( TweenLite.to(mc_dot01_08_21_22, dotPopVar, {scaleX:2, scaleY:2, ease:Linear.easeNone}), "label_01");
tl.insert( TweenLite.to(mc_dot02_07_10, dotPopVar, {scaleX:2, scaleY:2, ease:Linear.easeNone}), "label_02");

// group fades
tl.insert( TweenMax.to(mc_williamsburg, grpFadeVar, {autoAlpha:1, repeat:1, repeatDelay: repeatDlyVar, yoyo:true}), "label_01");


function drawLine():void
	line.graphics.lineTo(mc.x, mc.y);
	mc.alpha = 1;

// buttons
play_btn.addEventListener(MouseEvent.CLICK, playTl);
pause_btn.addEventListener(MouseEvent.CLICK, pauseTl);
resume_btn.addEventListener(MouseEvent.CLICK, resumeTl);
reverse_btn.addEventListener(MouseEvent.CLICK, reverseTl);

// 1120 error if placed here:
// btnPop01mWash.addEventListener(MouseEvent.CLICK, pauseTl);

// functions
function pauseTl(e:MouseEvent):void {

function resumeTl(e:MouseEvent):void {

function reverseTl(e:MouseEvent):void {

function playTl(e:MouseEvent):void
	//kill existing line
	//start new line at first point
	line.graphics.lineStyle(2, 0xFF0000, 1);  // width, color, opacity
	line.graphics.moveTo(mc_dot01_08_21_22.x, mc_dot01_08_21_22.y);


function functionLineClear(){
	//trace('functionLineClear called');
	line.graphics.clear(); // kills all
	line.graphics.lineStyle(2, 0xFF0000, 1);  // width, color, opacity
	//line.graphics.moveTo(mc_dot02_07_10.x, mc_dot02_07_10.y);
	line.graphics.moveTo(mc.x, mc.y);
///////// set initial states

mc_dot01_08_21_22.scaleX = mc_dot01_08_21_22.scaleY = 0;
mc_dot02_07_10.scaleX = mc_dot02_07_10.scaleY = 0;

// groups & singles alpha
TweenLite.set(mc_williamsburg, {autoAlpha:0});

And in the 'mc_williamsburg' clip:

// a button with instance name of btnPop01mWash is in this clip

btnPop01mWash.addEventListener(MouseEvent.CLICK, pauseTl);

// functions
function pauseTl(e:MouseEvent):void {
	//tl.pause(); // Does not pause the timeline defined in the top level
	trace('pauseTl called from williamsburg'); // does in fact trace when the button is clicked

All items reside in the one file - it's a stand-alone deal.


Thanks for any pointers, and best wishes,


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Solved. Embarrassing, but when I referenced the button from the top level I didn't 'prepend' the button with the clip's instance.

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Thanks for letting us know you solved it. Saves us time.

Don't worry, we all make these mistakes.


In the future though, to upload a file, just make sure it is zipped first. That should work.

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