# -*- coding: utf-8 -*-
"""
Created on Wed Jun  1 20:59:24 2022

@author: Alsea
"""

import pygame  
# 初始化pygame  
pygame.init()
screen = pygame.display.set_mode((600, 600))  # 设置窗口长宽
pygame.display.set_caption('五子棋') # 设置 pygame 窗口名  
space = 20  # 四周留下的边距  
cell_size = 40  # 每个格子大小  
cell_num = 15 #设置线条数
chess_arr = [] #创建列表记录落子位置
def get_one_dire_num(lx, ly, dx, dy, m):  
    #将最后的x坐标赋值给tx  
    tx = lx  
    #将最后的y坐标赋值给tx  
    ty = ly  
    #判断连子  
    s = 0  
    while True:  
        #判断上下左右斜方向是否有连子  
        tx += dx  
        ty += dy  
        #如果没有的连子的话返回当前连子数量  
        if tx < 0 or tx >= cell_num or ty < 0 or ty >= cell_num or m[ty][tx] == 0: return s  
        #连子累加 1  
        s+=1
def check_win(chess_arr, flag):  
    m = [[0] * cell_num for i in range(cell_num)]  # 先定义一个15*15的全0的数组,不能用[[0]*cell_num]*cell_num的方式去定义因为一位数组会被重复引用  
    for x, y, c in chess_arr:  
        if c == flag:  
            m[y][x] = 1  # 上面有棋则标1
    lx = chess_arr[-1][0]  # 最后一个子的x  
    ly = chess_arr[-1][1]  # 最后一个子的y
    dire_arr = [[(-1, 0), (1, 0)], [(0, -1), (0, 1)], [(-1, -1), (1, 1)],  
                [(-1, 1), (1, -1)]]  # 4个方向数组,往左＋往右、往上＋往下、往左上＋往右下、往左下＋往右上，4组判断方向
    for dire1, dire2 in dire_arr:  
        # 往左，往上，往左上，往左下判断是否有连子  
        dx, dy = dire1  
        num1 = get_one_dire_num(lx, ly, dx, dy, m)  
        # 往右，往下，往右下、往右上判断是否有连子  
        dx, dy = dire2  
        num2 = get_one_dire_num(lx, ly, dx, dy, m)
        # 不同方向加起来的连子数为5的则获胜返回True  
        if num1 + num2 + 1 >= 5: return True
    return False
flag = 1 # 1=》金 2=》橙
game_state = 1 # 游戏状态1.表示正常进行 2.表示白胜 3.表示黑胜
while True:  # 死循环确保窗口一直显示  
    for event in pygame.event.get(): # 遍历所有事件  
        if event.type == pygame.QUIT:  # 如果单击关闭窗口，则退出  
            pygame.quit() #关闭 pygame 程序  
            exit() #结束程序  
        if game_state == 1 and event.type == pygame.MOUSEBUTTONUP:  # 鼠标弹起  
            x, y = pygame.mouse.get_pos()  # 获取鼠标位置  
            xi = int(round((x - space) * 1.0 / cell_size))  # 获取到x方向上取整的序号  
            yi = int(round((y - space) * 1.0 / cell_size))  # 获取到y方向上取整的序号  
            if xi >= 0 and xi < cell_num and yi >= 0 and yi < cell_num and (xi, yi,1) not in chess_arr and (xi, yi,2) not in chess_arr:  
                chess_arr.append((xi, yi,flag))  
                #调用函数判断下的该子是否获胜  
                if check_win(chess_arr, flag):  
                    #若状态值为 1 则表示3，否则表示2  
                    game_state = 2 if flag == 1 else 3
                else:  
                    #若状态值为 1 则表示 2 否则为 1（代表转换棋子）  
                    flag = 2 if flag == 1 else 1  
    screen.fill((135,206,235))  # 将界面设置天蓝色  
    #遍历横位置点，步长为40  
    #pygame.draw.line(窗口, 线条颜色, 开始坐标, 结束坐标, 线条大小 )  
    for x in range(0, cell_size * cell_num, cell_size):  
        pygame.draw.line(screen, (0, 0, 0), (x + space, 0 + space),  
                         (x + space, cell_size * (cell_num - 1) + space), 1)  
    # 遍历竖位置点，步长为40  
    # pygame.draw.line(窗口, 线条颜色, 开始坐标, 结束坐标, 线条大小 )  
    for y in range(0, cell_size * cell_num, cell_size):  
        pygame.draw.line(screen, (0, 0, 0), (0 + space, y + space),  
                         (cell_size * (cell_num - 1) + space, y + space), 1)  
    #绘制棋子  
    for x, y,c in chess_arr:  
        chess_color = (255,69,0) if c == 1 else (255,215,0)  
        pygame.draw.circle(screen, chess_color, [x * cell_size + space, y * cell_size + space], 16, 16)  
    # 绘制五个点  
    # pygame.draw.circle(窗口，颜色，坐标，圆半径，线条大小)  
    if (4, 4,1) not in chess_arr and (4, 4,2) not in chess_arr:  
        pygame.draw.circle(screen, (255, 0, 0), (cell_size * 4 + space, cell_size * 4 + space), 2, 1)  
    if (10, 10, 1) not in chess_arr and (10, 10, 2) not in chess_arr:  
        pygame.draw.circle(screen, (255, 0, 0), (cell_size * 10 + space, cell_size * 10 + space), 2, 1)  
    if (10, 4, 1) not in chess_arr and (10, 4, 2) not in chess_arr:  
        pygame.draw.circle(screen, (255, 0, 0), (cell_size * 10 + space, cell_size * 4 + space), 2, 1)  
    if (4, 10, 1) not in chess_arr and (4 ,10, 2) not in chess_arr:  
        pygame.draw.circle(screen, (255, 0, 0), (cell_size * 4 + space, cell_size * 10 + space), 2, 1)  
    if (7, 7, 1) not in chess_arr and (7, 7, 2) not in chess_arr:  
        pygame.draw.circle(screen, (255, 0, 0), (cell_size * 7 + space, cell_size * 7 + space), 2, 1)  
    if game_state != 1:  
        myfont = pygame.font.Font(None, 60)  
        white = 210, 210, 0  
        win_text = "%s win" % ('orange' if game_state == 2 else 'gold')  
        textImage = myfont.render(win_text, True, white)  
        screen.blit(textImage, (260, 320))
    pygame.display.update()  # 必须调用update才能看到绘图显示