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https://github.com/Sneed-Group/Poodletooth-iLand
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25 lines
753 B
Python
25 lines
753 B
Python
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import random
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# DCR: I added a weightedChoice() function to PythonUtil that supports
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# floating-point weights and is intended for one-shot choices. It
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# has an optional 'sum' argument that you can pass in if you know the
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# sum of the weights and want to make repeated choices.
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class WeightedChoice:
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def __init__(self, listOfLists, weightIndex=0):
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t=0
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for i in listOfLists:
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t+=i[weightIndex]
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self.total = t
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self.listOfLists = listOfLists
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self.weightIndex = weightIndex
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def choose(self, rng=random):
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roll = rng.randrange(self.total)
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weight = self.weightIndex
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for i in self.listOfLists:
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roll -= i[weight]
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if roll <= 0:
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return i
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