36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
class Position:
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_RANKS = range(1, 9)
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_FILES = "abcdefgh"
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_MIN_POS = 0
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_MAX_POS = 7
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def __init__(self, x, y) -> None:
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assert x >= self._MIN_POS and x <= self._MAX_POS, f"Invalid argument: x should be between {self._MIN_POS} and {self._MAX_POS}, but is {x}"
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assert y >= self._MIN_POS and y <= self._MAX_POS, f"Invalid argument: y should be between {self._MIN_POS} and {self._MAX_POS}, but is {y}"
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self.x = x
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self.y = y
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@staticmethod
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def is_within_bounds(x: int, y: int) -> bool:
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return x >= Position._MIN_POS and x <= Position._MAX_POS \
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and y >= Position._MIN_POS and y <= Position._MAX_POS
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def to_algebraic(self) -> str:
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return f"{Position._FILES[self.x]}{Position._RANKS[self.y]}"
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def __eq__(self, value: object, /) -> bool:
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if type(value) != type(self):
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return False
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return value.x == self.x and value.y == self.y
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def __hash__(self) -> int:
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return hash((self.x, self.y))
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def __str__(self) -> str:
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return f"{Position._FILES[self.x]}{Position._RANKS[self.y]}"
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def __repr__(self) -> str:
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return str(self)
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