AS3で3つのオブジェクト間のスワップ（ランダム）位置を作る方法は？

Question

//array 
var boxs: Array = new Array 
boxs[0] = [b1.x = 307.95 , b1.y = 202] 
boxs[1] = [b2.x = 233.95 , b2.y = 202] 
boxs[2] = [b3.x = 159.95 , b3.y = 202] 

//varable 
var oldg:Number = 0 
//random number 
oldg = Number(Math.floor(Math.random()*boxs.length)) 

Answer 1

ナイーブなアプローチ：

public function Main() 
    { 
     const array:Array = [1,2,3,4,5,6,7]; 
     trace(array); 
     // 1,2,3,4,5,6,7 
     swapTwoRandomElements(array); 
     trace(array); 
     // 1,2,3,6,5,4,7 
    } 

    private function swapTwoRandomElements(input:Array):void 
    { 
     const indices:Array = []; 
     for (var i:int = 0; i < input.length; i++) 
     { 
      indices.push(i); 
     } 
     const indexFirst:int = indices[int(Math.random() * indices.length)]; 
     indices.splice(indexFirst, 1); 
     const indexSecond:int = indices[int(Math.random() * indices.length)]; 
     indices.splice(indexSecond, 1); 

     const tmp:* = input[indexFirst]; 
     input[indexFirst] = input[indexSecond]; 
     input[indexSecond] = tmp; 
    }