Thanks Karina this is the sort of thing I was looking for, as you say
it may be clearer to code this fn the way I initially said but I was
interested in how to code this another way so thanks for helping me.
One tiny typo, before someone else does-
for (var i = 1; i<arguments.length; i++)
Thanks again :)
Ben, thanks for your help too, I hadn't thought of only using the
square brackets to make the code more efficient.
Ali
On 11 May 2007, at 15:32, Karina Steffens wrote:
The parameters received by a function are automatically stored in a
built-in
array called "arguments". So you can do something like this:
public static function center(obj1:Object) {
var targetX:Number = ob1._x;
var targetY:Number = ob1._y;
for (var i = 1; i<ob_ar.length; i++) {
arguments[i]._x = targetX+(ob1._width/2);
arguments[i]._y = targetY+(ob1._width/2);
}
}
}
Btw, obj1 doesn't have to be passed seperately either - you can use
var targetX:Number = arguments[0]._x; - but there's no reason to do
so in
your code, and this way the method is a bit more clear.
The only caveat is that, depending on the rest of your code, if you
have to
pass an unknown number of movie clips, there's a chance your original
function might actually make more sense...
Cheers,
Karina
-----Original Message-----
From: Alistair Colling [mailto:[EMAIL PROTECTED]
Sent: 11 May 2007 12:41
To: [email protected]
Subject: [Flashcoders] Quick syntax q: how to write a
function that canreceive an undefined number of parameters
Hi there, just a quick syntax question, I want to receive a
function that will centre the position of all objects passed
to that of the first object passed but the number of objects
passed may vary. This is the syntax I am currently using, is
this the best way to do it?
Thanks for any comments in advance :)
Ali
//ob1 is the object that the objects in the array centre
themselves to public static function center(ob1:Object,
ob_ar:Array) {
var targetX:Number = ob1._x;
var targetY:Number = ob1._y;
for (var i = 0; i<ob_ar.length; i++) {
ob_ar[i]._x = targetX+(ob1._width/2);
ob_ar[i]._y = targetY+(ob1._width/2);
}
}
center(myMC, [myMC2, myMC3, myMC4]);
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