使用Python的pygame库实现迷宫游戏

使用Python的pygame库实现迷宫游戏

关于Python中pygame游戏模块的安装使用可见 https://blog.csdn.net/cnds123/article/details/119514520

先给出效果图：

这个游戏能自动生成迷宫布局。

在这个游戏中，玩家将使用键盘箭头键来移动，并且目标是从迷宫的左上角移动到右下角。

源码如下：

import pygame
import random
import time  # 导入time模块用于移动延迟

# 迷宫生成算法中使用的方向常量
UP = (0, -1)
DOWN = (0, 1)
LEFT = (-1, 0)
RIGHT = (1, 0)

# 初始化pygame
pygame.init()

# 设置迷宫的行数和列数
ROWS, COLS = 10, 10 #你可以根据需要调整迷宫的大小
# 设置每个单元格的大小
SIZE = 40
# 创建游戏窗口
WIN = pygame.display.set_mode((COLS * SIZE+2, ROWS * SIZE+2))
pygame.display.set_caption("迷宫游戏")

# 设置颜色常量
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
GREEN = (0, 255, 0)
RED = (255, 0, 0)

# 定义单元格类
class Cell:
    def __init__(self, row, col):
        self.row = row
        self.col = col
        self.walls = {'top': True, 'right': True, 'bottom': True, 'left': True}
        self.visited = False

    def draw(self, win):
        x = self.col * SIZE
        y = self.row * SIZE

        if self.visited:
            pygame.draw.rect(win, WHITE, (x, y, SIZE, SIZE))

        if self.walls['top']:
            pygame.draw.line(win, BLACK, (x, y), (x + SIZE, y), 2)
        if self.walls['right']:
            pygame.draw.line(win, BLACK, (x + SIZE, y), (x + SIZE, y + SIZE), 2)
        if self.walls['bottom']:
            pygame.draw.line(win, BLACK, (x + SIZE, y + SIZE), (x, y + SIZE), 2)
        if self.walls['left']:
            pygame.draw.line(win, BLACK, (x, y + SIZE), (x, y), 2)

    def remove_walls(self, next_cell):
        dx = next_cell.col - self.col
        dy = next_cell.row - self.row

        if dx == 1:
            self.walls['right'] = False
            next_cell.walls['left'] = False
        elif dx == -1:
            self.walls['left'] = False
            next_cell.walls['right'] = False
        if dy == 1:
            self.walls['bottom'] = False
            next_cell.walls['top'] = False
        elif dy == -1:
            self.walls['top'] = False
            next_cell.walls['bottom'] = False

# 迷宫生成算法
def generate_maze(rows, cols):
    # 创建单元格网格
    grid = [[Cell(row, col) for col in range(cols)] for row in range(rows)]
    # 随机选择一个单元格作为当前单元格
    current_cell = grid[random.randint(0, rows - 1)][random.randint(0, cols - 1)]
    current_cell.visited = True
    # 使用栈来跟踪单元格路径
    stack = [current_cell]

    while stack:
        # 获取当前单元格的未访问邻居
        neighbors = []
        for direction in [UP, DOWN, LEFT, RIGHT]:
            next_row = current_cell.row + direction[1]
            next_col = current_cell.col + direction[0]
            if (0 <= next_row < rows and
                0 <= next_col < cols and
                not grid[next_row][next_col].visited):
                neighbors.append(grid[next_row][next_col])

        if neighbors:
            # 随机选择一个未访问的邻居
            next_cell = random.choice(neighbors)
            next_cell.visited = True
            # 移除墙壁
            current_cell.remove_walls(next_cell)
            # 将当前单元格压入栈
            stack.append(current_cell)
            # 将选择的邻居设置为当前单元格
            current_cell = next_cell
        else:
            # 如果没有未访问的邻居，则回溯
            current_cell = stack.pop()

    return grid

# 游戏循环
def main():
    clock = pygame.time.Clock()
    grid = generate_maze(ROWS, COLS)
    player_pos = [0, 0]  # 玩家起始位置在左上角
    end_pos = [COLS - 1, ROWS - 1]  # 结束位置在右下角
    move_delay = 0.2  # 移动延迟时间
    last_move = time.time()

    player_margin = 5  # 玩家边距
    end_margin = 5  # 结束位置边距
    # 游戏主循环
    running = True
    while running:
        clock.tick(30)
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False

        keys = pygame.key.get_pressed()
        current_cell = grid[player_pos[1]][player_pos[0]]

        # 玩家移动逻辑
        if time.time() - last_move > move_delay:
            if keys[pygame.K_UP] and not current_cell.walls['top']:
                player_pos[1] -= 1
                last_move = time.time()
            if keys[pygame.K_DOWN] and not current_cell.walls['bottom']:
                player_pos[1] += 1
                last_move = time.time()
            if keys[pygame.K_LEFT] and not current_cell.walls['left']:
                player_pos[0] -= 1
                last_move = time.time()
            if keys[pygame.K_RIGHT] and not current_cell.walls['right']:
                player_pos[0] += 1
                last_move = time.time()

        # 游戏结束条件
        if player_pos == end_pos:
            print("恭喜你，成功到达终点！")
            running = False

        # 绘制迷宫和玩家
        WIN.fill(WHITE)
        for row in grid:
            for cell in row:
                cell.draw(WIN)
        # 绘制玩家
        #pygame.draw.rect(WIN, GREEN, (player_pos[0] * SIZE, player_pos[1] * SIZE, SIZE, SIZE))
        pygame.draw.rect(WIN, GREEN, (player_pos[0] * SIZE + player_margin, player_pos[1] * SIZE + player_margin, SIZE - 2 * player_margin, SIZE - 2 * player_margin))
        # 绘制结束位置
        #pygame.draw.rect(WIN, RED, (end_pos[0] * SIZE, end_pos[1] * SIZE, SIZE, SIZE))
        pygame.draw.rect(WIN, RED, (end_pos[0] * SIZE + end_margin, end_pos[1] * SIZE + end_margin, SIZE - 2 * end_margin, SIZE - 2 * end_margin))
        pygame.display.update()

    pygame.quit()

if __name__ == "__main__":
    main()

这段代码首先定义了一个Cell类，用于表示迷宫中的单个单元格。迷宫生成算法使用了深度优先搜索算法来生成迷宫。每个单元格知道自己的位置以及哪些墙是存在的。generate_maze函数创建了一个单元格网格，并从一个随机单元格开始，追踪它的路径直到所有单元格都被访问过。最后，main函数包含了游戏的主循环，它不断地绘制迷宫并处理退出事件。

player_pos变量来跟踪玩家的位置，并在游戏循环中检查键盘输入来移动玩家。墙壁检查确保玩家不能穿过墙壁。游戏结束条件是当玩家到达迷宫的右下角结束位置时，会打印一条消息并退出游戏。

你可以根据需要调整迷宫的大小。