how to call just 2 value in array randomly specific location flash - actionscript-3

Question

I've 3 mc. I want to call 2 of them on stage randomly in specific locations. I don't know how to call them. I just tried with array. I think array is the best way but still confused.
this's code I tried :
import flash.geom.Point;
var Batumc:batu_mc = new batu_mc(); // creates a instance of the movieclip, i.e, an object
var Batumc1:L = new L();
var Pisangmc:pisang_mc = new pisang_mc();
var Batumc2:MovieClip = new MovieClip();
var Status:int = 0;
button.addEventListener(MouseEvent.CLICK, tombol);
function tombol(e:MouseEvent):void{
//addChild(Batumc);
//addChild(Batumc1);
//addChild(Pisangmc);
var P:Array = [new Point(80.2, 100), new Point(260, 100), new Point(430, 100)];
var M:Array = [Batumc, Batumc1, Pisangmc];
//random benda
var benda:int = Math.random()*M.length;
// Remove the selected benda from its list.
M.splice(benda, 1);
while (M.length){
// Get the last MovieClip and remove it from the list.
Batumc2 = M.pop();
trace(Batumc2);
// Produce a random Point.
var anIndex:int = Math.random() * P.length;
var aPo:Point = P[anIndex];
// Remove the selected Point from its list.
P.splice(anIndex, 1);
// Move the selected MovieClip to the selected Point coordinates.
Batumc2.x = aPo.x;
Batumc2.y = aPo.y;
addChild(Batumc);
addChild(Batumc1);
addChild(Pisangmc);
}
Status = 1;
}
button.addEventListener(Event.ENTER_FRAME, frame);
function frame(e:Event):void{
if(Status == 1 ){
removeChild(Batumc2);
Status = 0;
}
}
when i run this code, sometimes 3 mc appear again

Answer 1

I think the problem is with this line:
M[i] = P.splice(randomPos, 1);
You assign M[i] (array of mc) with value from P (array of points), so M[i] = array with point and not an mc.
If you want to avoid such issues you can use Vectors instead of arrays. Its more efficient and also must contain the type you declared.
Vector class Docs.
To use the vector, instead of:
var P:Array = [...];
var M:Array = [...];
Do:
var P:Vector.<Point> = new <Number>[...];
var M:Vector.<MovieClip> = new <MovieClip>[...];
And the rest is just like arrays (pop, push, slice, ...)
To remove item from M, just splice M, i don't understand why you need to iterate over M.
M.splice(randomPos, 1);

Answer 2

Try getDefinitionByName
var myClass:Class = getDefinitionByName("Class_Name") as Class;
var classInstance:MovieClip = new myClass as MovieClip;
addChild(classInstance);

Answer 3

You just have to determine the specific location in the array for the mc'c, beside that you can get the classes from the library like this;
var locations:Array = [{xpos:100, ypos:12} , {xpos:30, ypos:50} , {xpos:400, ypos:28}, ......];
for(var i:uint=0; i<YOUR_MCS_LENGTH; i++) {
var myClass:Class = getDefinitionByName("Batumc"+i) as Class;
var mc:MovieClip = new myClass as MovieClip;
mc.x = locations[i].xpos;
mc.y = locations[i].ypos;
}

Answer 4

I have followed your advice #Özgün Sandal, but I get this error
ReferenceError: Error #1065: Variable Batumc10 is not defined.
at global/flash.utils::getDefinitionByName()
at nyoba9_fla::MainTimeline/frame1()
this my code :
import flash.utils.getDefinitionByName;
import flash.geom.Point;
var Batumc:batu_mc = new batu_mc(); // creates a instance of the movieclip, i.e, an object
var Batumc1:L = new L();
var Pisangmc:pisang_mc = new pisang_mc();
var P:Array = [new Point(80.2, 100), new Point(260, 100), new Point(430, 100)];
var M:Array = [Batumc, Batumc1, Pisangmc];
for(var i:uint=0; i<M.length; i++) {
var myClass:Class = getDefinitionByName("Batumc1"+i) as Class;
var mc:MovieClip = new myClass as MovieClip;
// Produce a random Point.
var anIndex:int = Math.random() * P.length;
var aPo:Point = P[anIndex];
// Remove the selected Point from its list.
P.splice(anIndex, 1);
mc.x = aPo.x;
mc.y = aPo.y;
}
where's my fault?