蛇身为网格的贪吃蛇代码
时间: 2023-07-02 19:07:46 浏览: 167
以下是Python实现的网格贪吃蛇游戏:
```python
import pygame
import random
# 定义颜色
white = (255, 255, 255)
black = (0, 0, 0)
red = (255, 0, 0)
green = (0, 155, 0)
# 游戏窗口大小
window_width = 800
window_height = 600
# 定义方块大小
block_size = 10
# 初始化pygame模块
pygame.init()
# 创建游戏窗口
game_display = pygame.display.set_mode((window_width, window_height))
# 设置窗口标题
pygame.display.set_caption('Grid Snake')
# 设置游戏时钟
clock = pygame.time.Clock()
# 定义显示消息的函数
def message_to_screen(msg, color):
font = pygame.font.SysFont(None, 25)
screen_text = font.render(msg, True, color)
game_display.blit(screen_text, [window_width / 2, window_height / 2])
# 定义游戏循环函数
def game_loop():
game_exit = False
game_over = False
# 初始蛇的位置和长度
lead_x = window_width / 2
lead_y = window_height / 2
snake_list = []
snake_length = 1
# 初始食物的位置
food_x = round(random.randrange(0, window_width - block_size) / 10.0) * 10.0
food_y = round(random.randrange(0, window_height - block_size) / 10.0) * 10.0
# 初始蛇的移动方向
lead_x_change = 0
lead_y_change = 0
while not game_exit:
while game_over:
game_display.fill(white)
message_to_screen('Game over, press C to play again or Q to quit.', red)
pygame.display.update()
# 监听玩家操作,重新开始游戏或退出游戏
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_q:
game_exit = True
game_over = False
elif event.key == pygame.K_c:
game_loop()
# 监听玩家操作,改变蛇的移动方向
for event in pygame.event.get():
if event.type == pygame.QUIT:
game_exit = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
lead_x_change = -block_size
lead_y_change = 0
elif event.key == pygame.K_RIGHT:
lead_x_change = block_size
lead_y_change = 0
elif event.key == pygame.K_UP:
lead_y_change = -block_size
lead_x_change = 0
elif event.key == pygame.K_DOWN:
lead_y_change = block_size
lead_x_change = 0
# 更新蛇的位置
lead_x += lead_x_change
lead_y += lead_y_change
# 判断蛇是否碰到窗口边缘
if lead_x >= window_width or lead_x < 0 or lead_y >= window_height or lead_y < 0:
game_over = True
# 绘制食物
pygame.draw.rect(game_display, green, [food_x, food_y, block_size, block_size])
# 绘制蛇
snake_head = []
snake_head.append(lead_x)
snake_head.append(lead_y)
snake_list.append(snake_head)
if len(snake_list) > snake_length:
del snake_list[0]
# 判断蛇是否撞到自己
for segment in snake_list[:-1]:
if segment == snake_head:
game_over = True
# 绘制蛇的身体
for segment in snake_list:
pygame.draw.rect(game_display, black, [segment[0], segment[1], block_size, block_size])
# 更新分数
score = (snake_length - 1) * 10
message_to_screen(f'Score: {score}', black)
# 更新蛇的长度和食物的位置
pygame.display.update()
if lead_x == food_x and lead_y == food_y:
food_x = round(random.randrange(0, window_width - block_size) / 10.0) * 10.0
food_y = round(random.randrange(0, window_height - block_size) / 10.0) * 10.0
snake_length += 1
# 设置游戏帧率
clock.tick(15)
# 退出pygame模块
pygame.quit()
# 退出程序
quit()
# 启动游戏循环
game_loop()
```
在代码中,首先定义了游戏窗口的大小、方块的大小以及一些常用的颜色,然后用`pygame.init()`初始化pygame模块,创建游戏窗口并设置游戏标题,设置游戏时钟。
游戏循环函数中,首先定义了一些变量,包括蛇的初始位置和长度、食物的位置、蛇的移动方向等。在游戏循环中,监听玩家操作,改变蛇的移动方向,更新蛇的位置,判断蛇是否碰到窗口边缘或撞到自己,绘制食物和蛇的身体,更新分数和蛇的长度,设置游戏帧率。
最后,在游戏循环中,当玩家按下Q键时退出游戏,按下C键重新开始游戏。