35 lines
743 B
Python
35 lines
743 B
Python
import random
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class CircularIterator:
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def __init__(self):
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self.successive_count = 0
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self.last_size = 0
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self.index = -1
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def next(self, items):
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self.last_size = len(items)
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if self.last_size == 0:
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return None
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if self.index < 0:
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self.index = random.randint(0, self.last_size)
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else:
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self.index += 1
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self.index = self.index % self.last_size
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self.successive_count += 1
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return items[self.index]
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def resetSuccessiveCount(self):
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self.successive_count = 0
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def getSuccessiveCount(self):
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return self.successive_count
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def isWrapped(self):
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return self.successive_count >= self.last_size
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