Solved

increment through an array from a random index with setInterval()

Posted on 2008-06-24
2
241 Views
Last Modified: 2010-05-18
Hello can anyone help, I'm trying to cycle through an array sequentially, but from a random index.

ie. if index 8 is picked by random then it would go 9, 10, 11 etc..

Ideally I need a setInterval between moving to the next index!

Cheers, P
0
Comment
Question by:Sideas
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 12

Accepted Solution

by:
SamuelRostol earned 500 total points
ID: 21854396
Hi there,

I'll post three blocks of code, one shows how to find random startindex, the second shows the setInterval-code, and the third contains the actual function :) Look below!

Good luck!
Kindly,
Samuel
/// Array used for testing
var aArray :Array = new Array("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k");
 
/// #1 Random Initiater
var iRandomNum = Math.floor(Math.random() * aArray.length); // Finds random index from aArray;
 
/// #2 setInterval
var iIntervalID;
var iIntervalTime :Number = 200; // 200 milliseconds between each trigger
 
iInterval = setInterval(doFunction, iIntervalTime);
 
/// #3 The actual function;
function doFunction()
{
	// Place code here
	trace(aArray[iRandomNum++]);
	
	// Code to end interval when it has looped through the entire interval
	if (iRandomNum >= aArray.length) {
		clearInterval(iInterval);
	}
}

Open in new window

0
 
LVL 2

Author Closing Comment

by:Sideas
ID: 31470067
That's a great solution - you are the man!
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This is intended to introduce all collision detection principles in flash, their strengths, weaknesses and workarounds. The main method for Collision Detection in flash is using hitTestObject. But unless you'll be pushing rectangular shapes without …
I have found that much of my time doing support ends up being a constant repetition of the same steps to different people.  Early on I stated using web pages with Frequently Asked Questions (FAQs) to alleviate most of the burden.  Sometimes this jus…
The goal of the tutorial is to teach the user how to live broadcast using Flash Media Live Encoder and connecting it to YouTube to broadcast. Log into your Youtube account, choose live stream settings, start live stream from Flash Media Live Enc…
The goal of the tutorial is to teach the user what frame rate is, how to control it and what effect it has on the video.

733 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question