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snake.py
import pygame import pygame
from pygame import locals from pygame import locals
import random
# 初始化pygame，为使用硬件做准备 # 初始化pygame，为使用硬件做准备
pygame.init() pygame.init()
# 创建一个窗口 # 创建一个窗口
screen = pygame.display.set_mode((660, 480)) screen = pygame.display.set_mode((660, 480))
FPSCLOCK = pygame.time.Clock() # pygame时钟，控制游戏速度（帧数） FPSCLOCK=pygame.time.Clock()
# 背景 # 背景
background = pygame.image.load('bg.png') background = pygame.image.load('bg.png')
right = pygame.image.load('right.png') # 头 朝右 right = pygame.image.load('right.png')
food = pygame.image.load('apple.png') # 食物 苹果 food = pygame.image.load('apple.png')
body = pygame.image.load('body.png') # 身体 body = pygame.image.load('body.png')
left = pygame.image.load('left.png') # 头 朝左 left = pygame.image.load('left.png')
up = pygame.image.load('up.png') # 头 朝上 up = pygame.image.load('up.png')
down = pygame.image.load('down.png') # 头 朝下 down = pygame.image.load('down.png')
x=240
x, y = 240, 120 y=120
position = [(180, 90), (180, 120), (210, 120), (x, y)] apple_x=360
apple_y=300
setheading = "right" list=[(180,90),(180,120),(210,120),(x,y)]
snake_head = right heading = 'right'
while True: while True:
for event in pygame.event.get(): for event in pygame.event.get():
if event.type == locals.QUIT:
# 接收到退出事件后退出程序
exit()
if event.type == locals.KEYDOWN: if event.type == locals.KEYDOWN:
if event.key == locals.K_RIGHT and setheading != "left": if event.key==locals.K_UP and heading != 'down': #向上
setheading = 'right' heading='up'
snake_head = right if event.key==locals.K_LEFT and heading != 'right': #向左
if event.key == locals.K_LEFT and setheading != "right": heading='left'
setheading = 'left' if event.key==locals.K_RIGHT and heading != 'left': #向右
snake_head = left heading='right'
if event.key == locals.K_UP and setheading != "down": if event.key==locals.K_DOWN and heading != 'up': #向下
setheading = 'up' heading='down'
snake_head = up
if event.key == locals.K_DOWN and setheading != "up":
setheading = 'down'
snake_head = down
# 设置贪吃蛇的头部坐标 if event.type == locals.QUIT:
if setheading == "right": # 接收到退出事件后退出程序
x += 30 exit()
elif setheading == "left":
x -= 30
elif setheading == "up":
y -= 30
else:
y += 30
position.append((x, y))
position.pop(0)
# 将背景图画上去 # 将背景图画上去
screen.blit(background, (0, 0)) screen.blit(background, (0, 0))
# 将贪吃蛇的头画上去 # 将贪吃蛇画上去
screen.blit(snake_head, position[-1]) if heading=='up':
y-=30
if y<0:
y=480
if heading=='down':
y+=30
if y>480:
y=0
if heading=='right':
x+=30
if x>660:
x=0
if heading=='left':
x-=30
if x<0:
x=660
#增加坐标
list.append((x,y))
well=list[0]
list2=list
list.pop(0)
#判断头是否碰到身体
for i in range(len(list)-1):
if list[i]==(x,y):
exit()
#判断方向
if heading=='up':
screen.blit(up, (x, y))
if heading=='down':
screen.blit(down, (x, y))
if heading=='right':
screen.blit(right, (x, y))
if heading=='left':
screen.blit(left, (x, y))
# 将贪吃蛇的身体画上去 # 将贪吃蛇的身体画上去
for i in range(len(position)-1): for cs in range(len(list)-1):
screen.blit(body, position[i]) screen.blit(body, list[cs])
#贪吃蛇的头碰到苹果
if apple_x==x and apple_y==y:
apple_x=random.randint(0,21)*30
apple_y=random.randint(0,15)*30
list=[well,]
for yyy in list2:
list.append(yyy)
# print(list) 用于检测错误
# 将果实画上去 # 将果实画上去
screen.blit(food, (360, 300)) screen.blit(food, (apple_x, apple_y))
# 刷新画面 # 刷新画面
pygame.display.update() pygame.display.update()
FPSCLOCK.tick(3) zhenlv=len(list)/4
\ No newline at end of file FPSCLOCK.tick(zhenlv+1)
\ No newline at end of file
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