Problem with while loop looping infinitely

public List usedTiles = new List();

<--That isn't giving you some kind of error to start with? What is usedTiles a List<of> ?

Edit : Never$$anonymous$$d. Thanks for editing your post. 101/010 code button is a pain in the ass sometimes.

there we go, sorry. First time posting and didn't sere how to include code at first

Here's a link to a random-exclude topic :

http://answers.unity3d.com/questions/452983/how-to-exclude-int-values-from-randomrange.html

The way you have it now, if your [usedTiles] has {0,1,2,3,4,5,6,7} in it then it's going to keep going forever because it'll always generate one of those numbers.

Well thats the thing, I understand that it would loop forever with those numbers. But I have it empty. I expect that it would loop forever after exhausting its options, but it seems to loop before doing anything, it doesnt appear to do anything before crashing. Is it because it has nothing declared to it? cause, as i understand it, i've left it empty.

You didn't assign anything to it in the inspector either??