39 lines
993 B
Python
39 lines
993 B
Python
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from abc import ABC, abstractmethod
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from typing import Any
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from enum import Enum, auto
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class EventType(Enum):
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MAZE_LOADED = auto()
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PATH_FOUND = auto()
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PATH_NOT_FOUND = auto()
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PLAYER_MOVED = auto()
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SEARCH_START = auto()
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SEARCH_END = auto()
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ERROR = auto()
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UNDO = auto()
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class Event:
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def __init__(self, event_type: EventType, data: Any = None):
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self.event_type = event_type
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self.data = data
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class Observer(ABC):
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@abstractmethod
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def update(self, event: Event):
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pass
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class Observable:
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def __init__(self):
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self._observers = []
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def attach(self, observer: Observer):
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if observer not in self._observers:
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self._observers.append(observer)
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def detach(self, observer: Observer):
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if observer in self._observers:
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self._observers.remove(observer)
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def notify(self, event: Event):
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for observer in self._observers:
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observer.update(event)
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