基于Python怎么实现人机对战五子棋游戏

from collections import namedtupleChessman = namedtuple('Chessman', 'Name Value Color')Point = namedtuple('Point', 'X Y')BLACK_CHESSMAN = Chessman('黑子', 1, (45, 45, 45))WHITE_CHESSMAN = Chessman('白子', 2, (219, 219, 219))offset = [(1, 0), (0, 1), (1, 1), (1, -1)]class Checkerboard:    def __init__(self, line_points):        self._line_points = line_points        self._checkerboard = [[0] * line_points for _ in range(line_points)]    def _get_checkerboard(self):        return self._checkerboard    checkerboard = property(_get_checkerboard)    # 判断是否可落子    def can_drop(self, point):        return self._checkerboard[point.Y][point.X] == 0    def drop(self, chessman, point):        """        落子        :param chessman:        :param point:落子位置        :return:若该子落下之后即可获胜，则返回获胜方，否则返回 None        """        print(f'{chessman.Name} ({point.X}, {point.Y})')        self._checkerboard[point.Y][point.X] = chessman.Value        if self._win(point):            print(f'{chessman.Name}获胜')            return chessman    # 判断是否赢了    def _win(self, point):        cur_value = self._checkerboard[point.Y][point.X]        for os in offset:            if self._get_count_on_direction(point, cur_value, os[0], os[1]):                return True    def _get_count_on_direction(self, point, value, x_offset, y_offset):        count = 1        for step in range(1, 5):            x = point.X + step * x_offset            y = point.Y + step * y_offset            if 0 <= x < self._line_points and 0 <= y < self._line_points and self._checkerboard[y][x] == value:                count += 1            else:                break        for step in range(1, 5):            x = point.X - step * x_offset            y = point.Y - step * y_offset            if 0 <= x < self._line_points and 0 <= y < self._line_points and self._checkerboard[y][x] == value:                count += 1            else:                break        return count >= 5

import sysimport pygamefrom pygame.locals import *import pygame.gfxdrawfrom 小游戏.五子棋.checkerboard import Checkerboard, BLACK_CHESSMAN, WHITE_CHESSMAN, Point

SIZE = 30  # 棋盘每个点时间的间隔Line_Points = 19  # 棋盘每行/每列点数Outer_Width = 20  # 棋盘外宽度Border_Width = 4  # 边框宽度Inside_Width = 4  # 边框跟实际的棋盘之间的间隔Border_Length = SIZE * (Line_Points - 1) + Inside_Width * 2 + Border_Width  # 边框线的长度Start_X = Start_Y = Outer_Width + int(Border_Width / 2) + Inside_Width  # 网格线起点（左上角）坐标SCREEN_HEIGHT = SIZE * (Line_Points - 1) + Outer_Width * 2 + Border_Width + Inside_Width * 2  # 游戏屏幕的高SCREEN_WIDTH = SCREEN_HEIGHT + 200  # 游戏屏幕的宽Stone_Radius = SIZE // 2 - 3  # 棋子半径Stone_Radius2 = SIZE // 2 + 3Checkerboard_Color = (0xE3, 0x92, 0x65)  # 棋盘颜色BLACK_COLOR = (0, 0, 0)WHITE_COLOR = (255, 255, 255)RED_COLOR = (200, 30, 30)BLUE_COLOR = (30, 30, 200)RIGHT_INFO_POS_X = SCREEN_HEIGHT + Stone_Radius2 * 2 + 10

def print_text(screen, font, x, y, text, fcolor=(255, 255, 255)):    imgText = font.render(text, True, fcolor)    screen.blit(imgText, (x, y))def main():    pygame.init()    screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))    pygame.display.set_caption('五子棋')    font1 = pygame.font.SysFont('SimHei', 32)    font2 = pygame.font.SysFont('SimHei', 72)    fwidth, fheight = font2.size('黑方获胜')    checkerboard = Checkerboard(Line_Points)    cur_runner = BLACK_CHESSMAN    winner = None    computer = AI(Line_Points, WHITE_CHESSMAN)    black_win_count = 0    white_win_count = 0

    while True:        for event in pygame.event.get():            if event.type == QUIT:                sys.exit()            elif event.type == KEYDOWN:                if event.key == K_RETURN:                    if winner is not None:                        winner = None                        cur_runner = BLACK_CHESSMAN                        checkerboard = Checkerboard(Line_Points)                        computer = AI(Line_Points, WHITE_CHESSMAN)            elif event.type == MOUSEBUTTONDOWN:                if winner is None:                    pressed_array = pygame.mouse.get_pressed()                    if pressed_array[0]:                        mouse_pos = pygame.mouse.get_pos()                        click_point = _get_clickpoint(mouse_pos)                        if click_point is not None:                            if checkerboard.can_drop(click_point):                                winner = checkerboard.drop(cur_runner, click_point)                                if winner is None:                                    cur_runner = _get_next(cur_runner)                                    computer.get_opponent_drop(click_point)                                    AI_point = computer.AI_drop()                                    winner = checkerboard.drop(cur_runner, AI_point)                                    if winner is not None:                                        white_win_count += 1                                    cur_runner = _get_next(cur_runner)                                else:                                    black_win_count += 1                        else:                            print('超出棋盘区域')

def _draw_checkerboard(screen):    # 填充棋盘背景色    screen.fill(Checkerboard_Color)    # 画棋盘网格线外的边框    pygame.draw.rect(screen, BLACK_COLOR, (Outer_Width, Outer_Width, Border_Length, Border_Length), Border_Width)    # 画网格线    for i in range(Line_Points):        pygame.draw.line(screen, BLACK_COLOR,                         (Start_Y, Start_Y + SIZE * i),                         (Start_Y + SIZE * (Line_Points - 1), Start_Y + SIZE * i),                         1)    for j in range(Line_Points):        pygame.draw.line(screen, BLACK_COLOR,                         (Start_X + SIZE * j, Start_X),                         (Start_X + SIZE * j, Start_X + SIZE * (Line_Points - 1)),                         1)    # 画星位和天元    for i in (3, 9, 15):        for j in (3, 9, 15):            if i == j == 9:                radius = 5            else:                radius = 3            # pygame.draw.circle(screen, BLACK, (Start_X + SIZE * i, Start_Y + SIZE * j), radius)            pygame.gfxdraw.aacircle(screen, Start_X + SIZE * i, Start_Y + SIZE * j, radius, BLACK_COLOR)            pygame.gfxdraw.filled_circle(screen, Start_X + SIZE * i, Start_Y + SIZE * j, radius, BLACK_COLOR)

def _get_clickpoint(click_pos):    pos_x = click_pos[0] - Start_X    pos_y = click_pos[1] - Start_Y    if pos_x < -Inside_Width or pos_y < -Inside_Width:        return None    x = pos_x // SIZE    y = pos_y // SIZE    if pos_x % SIZE > Stone_Radius:        x += 1    if pos_y % SIZE > Stone_Radius:        y += 1    if x >= Line_Points or y >= Line_Points:        return None    return Point(x, y)

if __name__ == '__main__':    main()