traverseLevel method
Implementation
int traverseLevel(int iterations, State state) {
var queue = state.queue;
var levelQueue = queue.drain();
while (levelQueue.length() != 0) {
iterations++;
NodeOutput item = levelQueue.shift();
traverseItem(item, state, levelQueue);
if (iterations > MaxIterations) {
throw "max iterations reached";
}
}
return iterations;
}