aux_funcs.py

"""Utilidades para el juego HEX."""


def available_positions(game_board):
    """Extrae todas las casillas disponibles en el tablero."""
    output = []
    for i in range(game_board.size):
        for j in range(game_board.size):
            if game_board.board[i][j] == 0:
                output.append((i, j))
    return output


def adjacent_cells(game_board, x: int, y: int):
    """Itera sobre celdas adyacentes considerando disposición hexagonal even-r."""
    if x % 2 == 0:
        deltas = [(-1, 0), (-1, 1), (0, -1), (0, 1), (1, 0), (1, 1)]
    else:
        deltas = [(-1, -1), (-1, 0), (0, -1), (0, 1), (1, -1), (1, 0)]

    for dx, dy in deltas:
        nx, ny = x + dx, y + dy
        if 0 <= nx < game_board.size and 0 <= ny < game_board.size:
            yield nx, ny


def is_board_full(game_board):
    """Determina si todas las celdas están ocupadas."""
    for fila in game_board.board:
        for celda in fila:
            if celda == 0:
                return False
    return True


def display_board(game_board):
    """Convierte el tablero a una representación textual."""
    output_lines = []
    for i in range(game_board.size):
        espacios = " " * i
        simbolos = []
        for j in range(game_board.size):
            val = game_board.board[i][j]
            simbolos.append("*" if val == 0 else str(val))
        output_lines.append(espacios + " ".join(simbolos))
    return "\n".join(output_lines)