如何随意生成墙的代码，并且撞墙就游戏结束的代码

这里提供一个用Python和Pygame实现的简单游戏，其中包括随机生成墙和碰撞检测的代码。这个游戏中，玩家可以通过方向键控制一个小球避开随机生成的墙，碰到墙则游戏结束。

import pygame
import random

# 定义常量
WIDTH = 800
HEIGHT = 600
BALL_RADIUS = 10
WALL_WIDTH = 20
WALL_MIN_HEIGHT = 100
WALL_MAX_HEIGHT = 300
WALL_MIN_DISTANCE = 100
WALL_MAX_DISTANCE = 200

# 初始化Pygame
pygame.init()

# 创建游戏窗口
screen = pygame.display.set_mode((WIDTH, HEIGHT))

# 设置游戏标题
pygame.display.set_caption("Hit the Wall")

# 定义颜色常量
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)

# 定义字体
font = pygame.font.SysFont(None, 48)

# 定义游戏结束函数
def game_over():
    # 显示游戏结束的文字
    text = font.render("GAME OVER", True, WHITE)
    text_rect = text.get_rect(center=(WIDTH/2, HEIGHT/2))
    screen.blit(text, text_rect)
    pygame.display.flip()
    # 等待3秒钟后关闭游戏窗口
    pygame.time.wait(3000)
    pygame.quit()
    exit()

# 定义碰撞检测函数
def collide(rect1, rect2):
    if rect1.right < rect2.left or rect1.left > rect2.right:
        return False
    if rect1.bottom < rect2.top or rect1.top > rect2.bottom:
        return False
    return True

# 随机生成墙的函数
def create_wall(x):
    # 随机生成墙的高度和距离
    wall_height = random.randint(WALL_MIN_HEIGHT, WALL_MAX_HEIGHT)
    wall_distance = random.randint(WALL_MIN_DISTANCE, WALL_MAX_DISTANCE)
    # 创建墙的矩形
    wall_rect = pygame.Rect(x, 0, WALL_WIDTH, wall_height)
    # 创建墙的间隔
    gap_rect = pygame.Rect(x-WALL_WIDTH/2, wall_height, WALL_WIDTH*2, wall_distance)
    return wall_rect, gap_rect

# 定义游戏循环
def game_loop():
    # 初始化小球的位置和速度
    ball_x = WIDTH/2
    ball_y = HEIGHT/2
    ball_vx = 0
    ball_vy = 0
    # 初始化墙的列表和起始位置
    walls = []
    wall_x = WIDTH
    # 记录分数
    score = 0
    # 游戏循环
    while True:
        # 处理事件
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                exit()
            elif event.type == pygame.KEYDOWN:
                if event.key == pygame.K_UP:
                    ball_vy = -5
                elif event.key == pygame.K_DOWN:
                    ball_vy = 5
                elif event.key == pygame.K_LEFT:
                    ball_vx = -5
                elif event.key == pygame.K_RIGHT:
                    ball_vx = 5
            elif event.type == pygame.KEYUP:
                if event.key == pygame.K_UP or event.key == pygame.K_DOWN:
                    ball_vy = 0
                elif event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
                    ball_vx = 0
        # 移动小球
        ball_x += ball_vx
        ball_y += ball_vy
        # 绘制背景
        screen.fill(BLACK)
        # 绘制小球
        pygame.draw.circle(screen, WHITE, (int(ball_x), int(ball_y)), BALL_RADIUS)
        # 遍历墙列表，移动墙和间隔，并绘制墙和间隔
        for wall, gap in walls:
            wall.left -= 5
            gap.left -= 5
            pygame.draw.rect(screen, WHITE, wall)
            pygame.draw.rect(screen, BLACK, gap)
            # 检测小球是否碰到墙或间隔
            if collide(pygame.Rect(ball_x-BALL_RADIUS, ball_y-BALL_RADIUS, BALL_RADIUS*2, BALL_RADIUS*2), wall) or \
               collide(pygame.Rect(ball_x-BALL_RADIUS, ball_y-BALL_RADIUS, BALL_RADIUS*2, BALL_RADIUS*2), gap):
                game_over()
            # 如果小球通过了墙和间隔，加分并移除墙
            if wall.right < ball_x and not gap.collidepoint(wall.right, wall.bottom+1):
                score += 1
                walls.remove((wall, gap))
        # 如果最后一堵墙的右边界超过了屏幕左边界，创建新的墙
        if walls and walls[-1][0].right < WIDTH-WALL_MIN_DISTANCE:
            wall, gap = create_wall(WIDTH)
            walls.append((wall, gap))
        # 如果没有墙，创建新的墙
        elif not walls:
            wall, gap = create_wall(WIDTH)
            walls.append((wall, gap))
        # 绘制分数
        score_text = font.render(str(score), True, WHITE)
        screen.blit(score_text, (10, 10))
        # 更新屏幕
        pygame.display.flip()
        # 设置帧率
        pygame.time.Clock().tick(60)

# 启动游戏
game_loop()

这段代码中，`create_wall`函数用于随机生成墙和间隔，`collide`函数用于检测小球和墙或间隔是否碰撞，`game_over`函数用于在游戏结束时显示文字并关闭游戏窗口。在游戏循环中，首先处理用户的输入，然后移动小球并绘制背景和小球。然后遍历墙列表，移动墙和间隔，并绘制墙和间隔。每一次循环都检测小球是否碰到墙或间隔，如果碰到则调用`game_over`函数结束游戏。如果小球通过了墙和间隔，加分并移除墙。最后，根据墙列表的情况生成新的墙并绘制分数，然后更新屏幕并设置帧率。