Random

[jocoutts]

I know how to make ActionScript choose a random number between 1 and ?.
But how exactly can ActionScript choose a sequence of numbers between, say 1 and 20, in random order, but so they are not repeated.
At the moment, I have some code which instructs the frame to pick a random number between 1 and 20. I then have a long, lengthy and probably needless script that goes over each number, if it has already been previously picked then it is ignored.
As this script is in a frame, this is a lengthy process. When there is only one number left to pick, it can take a long time before the computer finally picks this one.
Can anyone help?

 

[wangbar]

Try this - attach it to any clip then trigger the random number generation with a mouse click. It should be easy enough to convert this code to sit on a frame but it's easier to put the point across with it all in one place.

onClipEvent (load) {
// do the actual array manipulation
function pickRandom () {
randomNumber = Math.floor(Math.random()*availableNumbers.length);
newValue = availableNumbers.splice(randomNumber, 1);
return newValue;
}
// list of all available values
availableNumbers = new Array("1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20"
}
onClipEvent (mouseDown) {
// generate list on mouse click
for (i=0; i<20; i++) {
list += pickRandom()+&quot;, &quot;;
trace (list);
}
}
Slainte

http://www.wangbar.co.uk