估计是局部变量理解问题
本帖最后由 自得其乐 于 2021-2-10 18:07 编辑#!/usr/bin/env python
import pygame
import sys
import time
import random
from pygame.locals import *
# 定义颜色变量
redColour = pygame.Color(255, 0, 0)
blackColour = pygame.Color(0, 0, 0)
whiteColour = pygame.Color(255, 255, 255)
greyColour = pygame.Color(150, 150, 150)
# 定义gameOver函数
def gameOver(playSurface):
gameOverFont = pygame.font.Font('arial.ttf', 72)
gameOverSurf = gameOverFont.render('Game Over', True, greyColour)
gameOverRect = gameOverSurf.get_rect()
gameOverRect.midtop = (320, 10)
playSurface.blit(gameOverSurf, gameOverRect)
pygame.display.flip()
time.sleep(5)
pygame.quit()
sys.exit()
# 定义main函数
def main():
# 初始化pygame
pygame.init()
# 创建pygame显示层
fpsClock = pygame.time.Clock()
playSurface = pygame.display.set_mode((640, 480))
pygame.display.set_caption('Raspberry Snake')
# 初始化变量
snakePosition =
snakeSegments = [, , ]
raspberryPosition =
raspberrySpawned = 1
direction = 'right'
changeDirection = direction
while True:
# 检测例如按键等pygame事件
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
elif event.type == KEYDOWN:
# 判断键盘事件
if event.key == K_RIGHT or event.key == ord('d'):
changeDirection = 'right'
if event.key == K_LEFT or event.key == ord('a'):
changeDirection = 'left'
if event.key == K_UP or event.key == ord('w'):
changeDirection = 'up'
if event.key == K_DOWN or event.key == ord('s'):
changeDirection = 'down'
if event.key == K_ESCAPE:
pygame.event.post(pygame.event.Event(QUIT))
# 判断是否输入了反方向
if changeDirection == 'right' and not direction == 'left':
direction = changeDirection
if changeDirection == 'left' and not direction == 'right':
direction = changeDirection
if changeDirection == 'up' and not direction == 'down':
direction = changeDirection
if changeDirection == 'down' and not direction == 'up':
direction = changeDirection
# 根据方向移动蛇头的坐标
if direction == 'right':
snakePosition += 20
if direction == 'left':
snakePosition -= 20
if direction == 'up':
snakePosition -= 20
if direction == 'down':
snakePosition += 20
# 增加蛇的长度
snakeSegments.insert(0, list(snakePosition))
# 判断是否吃掉了树莓
if snakePosition == raspberryPosition and snakePosition == raspberryPosition:
raspberrySpawned = 0
else:
snakeSegments.pop()
# 如果吃掉树莓,则重新生成树莓
if raspberrySpawned == 0:
x = random.randrange(1, 32)
y = random.randrange(1, 24)
raspberryPosition =
raspberrySpawned = 1
# 绘制pygame显示层
playSurface.fill(blackColour)
for position in snakeSegments:
pygame.draw.rect(playSurface, whiteColour, Rect(position, position, 20, 20))
pygame.draw.rect(playSurface, redColour, Rect(raspberryPosition, raspberryPosition, 20, 20))
# 刷新pygame显示层
pygame.display.flip()
# 判断是否死亡
if snakePosition > 620 or snakePosition < 0:
gameOver(playSurface)
if snakePosition > 460 or snakePosition < 0:
for snakeBody in snakeSegments:
if snakePosition == snakeBody and snakePosition == snakeBody:
gameOver(playSurface)
# 控制游戏速度
fpsClock.tick(5)
# fpsClock = pygame.time.Clock()
# fpsClock.tick.tick(5)
if __name__ == "__main__":
main()
网上搜的一个贪吃蛇的代码。
没基础。
就是下下来看看,运行运行
除了蓝色的都是源代码
然后就是改了各种不规范啊,缩进啊,然后就是标红的地方好像说什么:局部变量用不着。。。那个主函数fpsClock = pygame.time.Clock()这句的fpsClock显示灰色,对应下边的报错
改了半天,红的删掉,写在蓝色那了,好了,这是为嘛? 另外那个import一起导入几个怎么就有波浪线浪呀浪的,这是为毛啊,这分开写就好了 改成这样:
import pygame
import sys
import time
import random
from pygame.locals import *
# 定义颜色变量
redColour = pygame.Color(255, 0, 0)
blackColour = pygame.Color(0, 0, 0)
whiteColour = pygame.Color(255, 255, 255)
greyColour = pygame.Color(150, 150, 150)
fpsClock = pygame.time.Clock()
fpsClock.tick(5)
# 定义gameOver函数
def gameOver(playSurface):
gameOverFont = pygame.font.Font('arial.ttf', 72)
gameOverSurf = gameOverFont.render('Game Over', True, greyColour)
gameOverRect = gameOverSurf.get_rect()
gameOverRect.midtop = (320, 10)
playSurface.blit(gameOverSurf, gameOverRect)
pygame.display.flip()
time.sleep(5)
pygame.quit()
sys.exit()
# 定义main函数
def main():
# 初始化pygame
pygame.init()
# 创建pygame显示层
fpsClock = pygame.time.Clock()
playSurface = pygame.display.set_mode((640, 480))
pygame.display.set_caption('Raspberry Snake')
# 初始化变量
snakePosition =
snakeSegments = [, , ]
raspberryPosition =
raspberrySpawned = 1
direction = 'right'
changeDirection = direction
while True:
# 检测例如按键等pygame事件
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
elif event.type == KEYDOWN:
# 判断键盘事件
if event.key == K_RIGHT or event.key == ord('d'):
changeDirection = 'right'
if event.key == K_LEFT or event.key == ord('a'):
changeDirection = 'left'
if event.key == K_UP or event.key == ord('w'):
changeDirection = 'up'
if event.key == K_DOWN or event.key == ord('s'):
changeDirection = 'down'
if event.key == K_ESCAPE:
pygame.event.post(pygame.event.Event(QUIT))
# 判断是否输入了反方向
if changeDirection == 'right' and not direction == 'left':
direction = changeDirection
if changeDirection == 'left' and not direction == 'right':
direction = changeDirection
if changeDirection == 'up' and not direction == 'down':
direction = changeDirection
if changeDirection == 'down' and not direction == 'up':
direction = changeDirection
# 根据方向移动蛇头的坐标
if direction == 'right':
snakePosition += 20
if direction == 'left':
snakePosition -= 20
if direction == 'up':
snakePosition -= 20
if direction == 'down':
snakePosition += 20
# 增加蛇的长度
snakeSegments.insert(0, list(snakePosition))
# 判断是否吃掉了树莓
if snakePosition == raspberryPosition and snakePosition == raspberryPosition:
raspberrySpawned = 0
else:
snakeSegments.pop()
# 如果吃掉树莓,则重新生成树莓
if raspberrySpawned == 0:
x = random.randrange(1, 32)
y = random.randrange(1, 24)
raspberryPosition =
raspberrySpawned = 1
# 绘制pygame显示层
playSurface.fill(blackColour)
for position in snakeSegments:
pygame.draw.rect(playSurface, whiteColour, Rect(position, position, 20, 20))
pygame.draw.rect(playSurface, redColour, Rect(raspberryPosition, raspberryPosition, 20, 20))
# 刷新pygame显示层
pygame.display.flip()
# 判断是否死亡
if snakePosition > 620 or snakePosition < 0:
gameOver(playSurface)
if snakePosition > 460 or snakePosition < 0:
for snakeBody in snakeSegments:
if snakePosition == snakeBody and snakePosition == snakeBody:
gameOver(playSurface)
# 控制游戏速度
fpsClock.tick(5)
if __name__ == "__main__":
main() {:5_110:}先说多谢,好像没那个图标哈
另外:你把fpsClock = pygame.time.Clock()
fpsClock.tick(5)
这两句放在前面和我放在后面我咋没看出什么区别呢?
还有main函数还是有
34 fpsClock = pygame.time.Clock()
我看了下那个fpsClock还是有波浪线呢
是局部变量的问题吧 本帖最后由 自得其乐 于 2021-2-10 18:39 编辑
Local variable 'fpsClock' value is not used
Shadows name 'fpsClock' from outer scope Shadows name 'fpsClock' from outer scope
页:
[1]