13 lines
474 B
CoffeeScript
13 lines
474 B
CoffeeScript
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@makeBiasedRng = (battle) ->
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biasedRNGFuncs = {}
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for funcName in ['next', 'randInt']
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do (funcName) =>
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oldFunc = battle.rng[funcName].bind(battle.rng)
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battle.rng[funcName] = (args...) =>
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id = args[args.length - 1]
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func = biasedRNGFuncs[funcName]
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return (if id of func then func[id] else oldFunc(args...))
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battle.rng.bias = (funcName, id, returns) ->
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biasedRNGFuncs[funcName] ||= {}
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biasedRNGFuncs[funcName][id] = returns
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