256 levels of recursion were exceeded in one action list.

Hi all.
I'm trying to generate a unique number between 1 and 30. Each time the number is unique, it gets put into an array. When the length of the array is 29, I'm assuming it's then finished with 1 instance of each number. Then I want it to stop and reset.

I have a button which calls the generate function and then ....(see attached code below).

All works till the end. When it gets to the end, before I can get it to even trace (I'll eventually want it to call another function) it says "256 levels of recursion were exceeded in one action list.
This is probably an infinite loop."

Any ideas would be most appreciated. Sorry I don't have any more points on offer.

function generate() {
      randomNum = random(30)+1;
      checker();
}
function checker() {
      if (checkDup.Contains(randomNum)) {
            generate();
            trace(" dup - trying again");
      } else {
            if (checkDup.length<=31) {
                  checkDup.push(randomNum);
                  trace(" none found - adding to array");
            } else {
                  trace("this is the end");
            }
      }
}
Array.prototype.Contains = function(value) {
      var found = 0;
      var i = 0;
      for (i=0; i<this.length; i++) {
            if (this[i] == value) {
                  found++;
            }
      }
      return found;
};Start Free Trial