Question

i have an array in as3 which has elements like
MyArray2[0] = 25;
MyArray2[1] = 31;
MyArray2[2] = 45;
MyArray2[3] = 50;
MyArray2[4] = 81;
MyArray2[5] = 90;
MyArray2[6] = 94;

i want to randmize this array and array may contain more values …
what should i do??
i have made the dirty alogrithm for it…
i need some good optimize way??

Answer 1

Haven’t looked at AS3 in a long while, but here’s some basic code that you should be able to use pretty easily.

var tmpVal, tmpInd, len;

len = MyArray.length;
for(var i=0; i < len; i++) {
    tmpInd = random(0,len);//grab a random index
    tmpVal = MyArray[tmpInd];//store the value
    //swap the values
    MyArray[tmpInd] = MyArray[i];
    MyArray[i] = tmpVal;
}

Basically, you’re just iterating over the array and swapping each element with a random element.