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gsimard/gist:2065481

Created March 17, 2012 21:34
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More functional way of doing that
Raw
gistfile1.scala
var entitiesMap = Map[Int,Entity]()
private val randEntityId = new scala.util.Random(0)
def uniqueEntityId() = {
var id = 0;
do {
id = randEntityId.nextInt()
} while (entitiesMap.contains(id))
id
}
(last (take-while #(contains entitiesMap %) (iterate nextInt 0)))
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