Swap a Strategy at Runtime

Difficulty

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Language: Python 3.12Engine

class FlatSizer:
    """..."""

    def __init__(self, lots):
        self.lots = lots

    def size(self, signal):
        # ...
        pass


class ProportionalSizer:
    """..."""

    def __init__(self, scale):
        self.scale = scale

    def size(self, signal):
        # ...
        pass


class CappedSizer:
    """..."""

    def __init__(self, scale, limit):
        # ...
        pass

    def size(self, signal):
        # ...
        pass


class Engine:
    """..."""

    def __init__(self, sizer):
        # ...
        pass

    def set_sizer(self, sizer):
        # ...
        pass

    def place(self, signal):
        # ...
        pass

    def history(self):
        # ...
        pass

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