-1

我的应用程序是使用最新版本的 Python 3.7、PyQt5 和 python-chess 编写的。我有一个 SVG 棋盘，由 python-chess 本身制作。我的应用程序处理棋盘上的鼠标点击，突出显示点击的方块。我的精度有问题。有时会突出显示相邻的正方形。我在棋盘的左侧和顶部也有棋盘坐标，这是我的错误的根本原因。没有棋盘坐标，它可以完美运行。

如果有人有兴趣帮助我，这里是代码。

import chess
import chess.svg

from PyQt5.QtCore import pyqtSlot
from PyQt5.QtSvg import QSvgWidget


COORDINATES = True
FLIPPED = False


class Chessboard(QSvgWidget):

    def __init__(self):
        super().__init__()

        self.clicked_square = -20
        self.move_from_square = -20
        self.move_to_square = -20
        self.piece_to_move = [None, None]

        viewbox_size = 400
        self.margin = chess.svg.MARGIN * 800 / viewbox_size if COORDINATES else 0
        self.file_size = chess.svg.SQUARE_SIZE * 800 / viewbox_size
        self.rank_size = chess.svg.SQUARE_SIZE * 800 / viewbox_size

        self.chessboard = chess.Board()
        self.draw_chessboard()

    @pyqtSlot(QSvgWidget)
    def mousePressEvent(self, event):
        x_coordinate = event.x()
        y_coordinate = event.y()

        file = int(x_coordinate / 800 * 8)
        rank = 7 - int(y_coordinate / 800 * 8)

        if file < 0:
            file = 0

        if rank < 0:
            rank = 0

        if file > 7:
            file = 7

        if rank > 7:
            rank = 7

        self.clicked_square = chess.square(file, rank)
        piece = self.chessboard.piece_at(self.clicked_square)

        file_character = chr(file + 97)
        rank_number = str(rank + 1)
        ply = f"{file_character}{rank_number}"

        if self.piece_to_move[0]:
            move = chess.Move.from_uci(f"{self.piece_to_move[1]}{ply}")
            if move in self.chessboard.legal_moves:
                self.chessboard.push(move)

                self.move_from_square = move.from_square
                self.move_to_square = move.to_square

                piece = None
                ply = None

        self.piece_to_move = [piece, ply]
        self.draw_chessboard()

    def draw_chessboard(self):
        is_it_check = self.chessboard.king(self.chessboard.turn) \
                      if self.chessboard.is_check() \
                      else None
        self.svg_chessboard = chess.svg.board(board=self.chessboard,
                                              lastmove=chess.Move(from_square=self.move_from_square,
                                                                  to_square=self.move_to_square),
                                              arrows=[(self.clicked_square, self.clicked_square),
                                                      (self.move_from_square, self.move_to_square)],
                                              check=is_it_check,
                                              flipped=FLIPPED,
                                              coordinates=COORDINATES,
                                              size=800)
        self.svg_chessboard_encoded = self.svg_chessboard.encode("utf-8")
        self.load(self.svg_chessboard_encoded)
4

1 回答 1

-1

我最终得到的解决方案是：

"""
Docstring.
"""

import chess
import chess.svg

from PyQt5.QtCore import pyqtSlot
from PyQt5.QtSvg import QSvgWidget

COORDINATES = True
FLIPPED = False


class Chessboard(QSvgWidget):
    """
    Docstring.
    """

    def __init__(self):
        """
        Docstring.
        """
        super().__init__()

        self.clicked_square = -20
        self.move_from_square = -20
        self.move_to_square = -20
        self.piece_to_move = [None, None]

        self.chessboard = chess.Board()
        self.draw_chessboard()

    @pyqtSlot(QSvgWidget)
    def mousePressEvent(self, event):
        """
        Docstring.
        """
        x_position = event.x()
        y_position = event.y()

        file_a = x_position in range(40, 131)
        file_b = x_position in range(130, 221)
        file_c = x_position in range(220, 311)
        file_d = x_position in range(310, 401)
        file_e = x_position in range(400, 491)
        file_f = x_position in range(490, 581)
        file_g = x_position in range(580, 671)
        file_h = x_position in range(670, 761)

        rank_1 = y_position in range(670, 761)
        rank_2 = y_position in range(580, 671)
        rank_3 = y_position in range(490, 581)
        rank_4 = y_position in range(400, 491)
        rank_5 = y_position in range(310, 401)
        rank_6 = y_position in range(220, 311)
        rank_7 = y_position in range(130, 221)
        rank_8 = y_position in range(40, 131)

        a1 = file_a and rank_1
        b1 = file_b and rank_1
        c1 = file_c and rank_1
        d1 = file_d and rank_1
        e1 = file_e and rank_1
        f1 = file_f and rank_1
        g1 = file_g and rank_1
        h1 = file_h and rank_1

        a2 = file_a and rank_2
        b2 = file_b and rank_2
        c2 = file_c and rank_2
        d2 = file_d and rank_2
        e2 = file_e and rank_2
        f2 = file_f and rank_2
        g2 = file_g and rank_2
        h2 = file_h and rank_2

        a3 = file_a and rank_3
        b3 = file_b and rank_3
        c3 = file_c and rank_3
        d3 = file_d and rank_3
        e3 = file_e and rank_3
        f3 = file_f and rank_3
        g3 = file_g and rank_3
        h3 = file_h and rank_3

        a4 = file_a and rank_4
        b4 = file_b and rank_4
        c4 = file_c and rank_4
        d4 = file_d and rank_4
        e4 = file_e and rank_4
        f4 = file_f and rank_4
        g4 = file_g and rank_4
        h4 = file_h and rank_4

        a5 = file_a and rank_5
        b5 = file_b and rank_5
        c5 = file_c and rank_5
        d5 = file_d and rank_5
        e5 = file_e and rank_5
        f5 = file_f and rank_5
        g5 = file_g and rank_5
        h5 = file_h and rank_5

        a6 = file_a and rank_6
        b6 = file_b and rank_6
        c6 = file_c and rank_6
        d6 = file_d and rank_6
        e6 = file_e and rank_6
        f6 = file_f and rank_6
        g6 = file_g and rank_6
        h6 = file_h and rank_6

        a7 = file_a and rank_7
        b7 = file_b and rank_7
        c7 = file_c and rank_7
        d7 = file_d and rank_7
        e7 = file_e and rank_7
        f7 = file_f and rank_7
        g7 = file_g and rank_7
        h7 = file_h and rank_7

        a8 = file_a and rank_8
        b8 = file_b and rank_8
        c8 = file_c and rank_8
        d8 = file_d and rank_8
        e8 = file_e and rank_8
        f8 = file_f and rank_8
        g8 = file_g and rank_8
        h8 = file_h and rank_8

        file = 0
        rank = 0

        if a1:
            file = 0
            rank = 0
        elif b1:
            file = 1
            rank = 0
        elif c1:
            file = 2
            rank = 0
        elif d1:
            file = 3
            rank = 0
        elif e1:
            file = 4
            rank = 0
        elif f1:
            file = 5
            rank = 0
        elif g1:
            file = 6
            rank = 0
        elif h1:
            file = 7
            rank = 0
        elif a2:
            file = 0
            rank = 1
        elif b2:
            file = 1
            rank = 1
        elif c2:
            file = 2
            rank = 1
        elif d2:
            file = 3
            rank = 1
        elif e2:
            file = 4
            rank = 1
        elif f2:
            file = 5
            rank = 1
        elif g2:
            file = 6
            rank = 1
        elif h2:
            file = 7
            rank = 1
        elif a3:
            file = 0
            rank = 2
        elif b3:
            file = 1
            rank = 2
        elif c3:
            file = 2
            rank = 2
        elif d3:
            file = 3
            rank = 2
        elif e3:
            file = 4
            rank = 2
        elif f3:
            file = 5
            rank = 2
        elif g3:
            file = 6
            rank = 2
        elif h3:
            file = 7
            rank = 2
        elif a4:
            file = 0
            rank = 3
        elif b4:
            file = 1
            rank = 3
        elif c4:
            file = 2
            rank = 3
        elif d4:
            file = 3
            rank = 3
        elif e4:
            file = 4
            rank = 3
        elif f4:
            file = 5
            rank = 3
        elif g4:
            file = 6
            rank = 3
        elif h4:
            file = 7
            rank = 3
        elif a5:
            file = 0
            rank = 4
        elif b5:
            file = 1
            rank = 4
        elif c5:
            file = 2
            rank = 4
        elif d5:
            file = 3
            rank = 4
        elif e5:
            file = 4
            rank = 4
        elif f5:
            file = 5
            rank = 4
        elif g5:
            file = 6
            rank = 4
        elif h5:
            file = 7
            rank = 4
        elif a6:
            file = 0
            rank = 5
        elif b6:
            file = 1
            rank = 5
        elif c6:
            file = 2
            rank = 5
        elif d6:
            file = 3
            rank = 5
        elif e6:
            file = 4
            rank = 5
        elif f6:
            file = 5
            rank = 5
        elif g6:
            file = 6
            rank = 5
        elif h6:
            file = 7
            rank = 5
        elif a7:
            file = 0
            rank = 6
        elif b7:
            file = 1
            rank = 6
        elif c7:
            file = 2
            rank = 6
        elif d7:
            file = 3
            rank = 6
        elif e7:
            file = 4
            rank = 6
        elif f7:
            file = 5
            rank = 6
        elif g7:
            file = 6
            rank = 6
        elif h7:
            file = 7
            rank = 6
        elif a8:
            file = 0
            rank = 7
        elif b8:
            file = 1
            rank = 7
        elif c8:
            file = 2
            rank = 7
        elif d8:
            file = 3
            rank = 7
        elif e8:
            file = 4
            rank = 7
        elif f8:
            file = 5
            rank = 7
        elif g8:
            file = 6
            rank = 7
        elif h8:
            file = 7
            rank = 7

        self.clicked_square = chess.square(file,
                                           rank)
        piece = self.chessboard.piece_at(self.clicked_square)

        file_character = chr(file + 97)
        rank_number = str(rank + 1)
        ply = f"{file_character}{rank_number}"

        if self.piece_to_move[0]:
            move = chess.Move.from_uci(f"{self.piece_to_move[1]}{ply}")
            if move in self.chessboard.legal_moves:
                self.chessboard.push(move)

                self.move_from_square = move.from_square
                self.move_to_square = move.to_square

                piece = None
                ply = None

        self.piece_to_move = [piece, ply]
        self.draw_chessboard()

    def draw_chessboard(self):
        """
        Docstring.
        """
        is_it_check = self.chessboard.king(self.chessboard.turn) \
                      if self.chessboard.is_check() \
                      else None
        self.svg_chessboard = chess.svg.board(board=self.chessboard,
                                              lastmove=chess.Move(from_square=self.move_from_square,
                                                                  to_square=self.move_to_square),
                                              arrows=[(self.clicked_square, self.clicked_square),
                                                      (self.move_from_square, self.move_to_square)],
                                              check=is_it_check,
                                              flipped=FLIPPED,
                                              coordinates=COORDINATES,
                                              size=800)
        self.svg_chessboard_encoded = self.svg_chessboard.encode("utf-8")
        self.load(self.svg_chessboard_encoded)
于 2019-04-23T22:30:10.547 回答