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16 lines
398 B
CoffeeScript
16 lines
398 B
CoffeeScript
class @FakeRNG
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constructor: ->
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next: (id) ->
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Math.random()
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# Returns a random integer N such that min <= N <= max.
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randInt: (min, max, id) ->
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Math.floor(@next(id) * (max + 1 - min) + min)
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# Returns a random element in the array.
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# Assumes the array is above length 0.
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choice: (array, id) ->
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index = @randInt(0, array.length - 1, id || "random choice")
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array[index]
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