【python作业】贪吃蛇-pygame
本帖最后由 gascd 于 2020-2-22 14:51 编辑github项目地址
import sys
import pygame
import random
WindowSize = ( 720, 480 )
fontSize = 20
cellSize = 16
mpSize = int(WindowSize/cellSize), int(WindowSize/cellSize)
#蛇的速度
snakeSpeed = 10
#颜色定义
colorBlack = ( 0, 0, 0)
colorRed = ( 255, 0, 0)
colorGreen = ( 0, 255, 0)
colorBlue = ( 0, 0, 255)
colorDarkBlue = ( 0, 0, 120)
#方向定义
left = 0
down = 1
up = 2
right = 3
#入口函数
def main():
pygame.init()
screen = pygame.display.set_mode(WindowSize)
pygame.display.set_caption("贪吃蛇小游戏~~")
snakeClock = pygame.time.Clock()
imgGameStart = pygame.image.load('./img/gameStart.jpg')
while 1:
showGameStartInfo(screen, imgGameStart)
gameRunning(screen, snakeClock)
#展示游戏开始信息
def showGameStartInfo(screen, imgGameStart):
font = pygame.font.Font("./font/msyh.ttc", fontSize)
screen.blit(imgGameStart, (0,0))
fontBuffer = font.render("按任意键开始游戏", True, colorRed)
screen.blit(fontBuffer, (250, 300))
fontBuffer = font.render("按q或ESC结束游戏", True, colorRed)
screen.blit(fontBuffer, (250, 300 + fontSize))
pygame.display.update()
while True:
for event in pygame.event.get():
justiceGameOver(event)
if event.type == pygame.KEYDOWN:
return
#退出游戏
def terminate():
pygame.quit()
sys.exit()
#展示游戏结束信息
def showGameOverInfo(screen, imgGameEnd, score):
font = pygame.font.Font("./font/msyh.ttc", fontSize)
screen.blit(imgGameEnd, (0,0))
fontBuffer = font.render("你的得分是%s" % score, True, colorRed)
screen.blit(fontBuffer, (250, 300 - fontSize))
fontBuffer = font.render("按r重新开始游戏", True, colorRed)
screen.blit(fontBuffer, (250, 300))
fontBuffer = font.render("按q或ESC结束游戏", True, colorRed)
screen.blit(fontBuffer, (250, 300 + fontSize))
pygame.display.update()
while True:
for event in pygame.event.get():
justiceGameOver(event)
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_r:
return
#游戏运行主体
def gameRunning(screen, snakeClock):
startxy = -5), random.randint(5, mpSize-5)]
snake = [
{'x':startxy, 'y':startxy},
{'x':startxy-1, 'y':startxy},
{'x':startxy-2, 'y':startxy}
]
direction = right
score = 0
food = CreateFood(screen)
while True:
if food not in snake:
del snake[-1]
else:
score += 1
food = CreateFood(screen)
for event in pygame.event.get():
justiceGameOver(event)
direction = justiceSnakeTurn(event, direction)
snakeMove(direction, snake)
if not isSnakeAlive(snake):
imgGameEnd = pygame.image.load('./img/gameEnd.jpg')
showGameOverInfo(screen, imgGameEnd, score)
return
screen.fill(colorBlack)
DrawFood(screen, food)
DrawSnake(screen, snake)
DrawScore(screen, score)
pygame.display.update()
snakeClock.tick(snakeSpeed)
#判断蛇是否活着 超出边界 吃到自己就是死
def isSnakeAlive(snake):
if snake['x'] == -1 or snake['x'] == mpSize or snake['y'] == -1 or snake['y'] == mpSize:
return False
elif snake in snake:
return False
return True
#蛇移动
def snakeMove(direction, snake):
if direction == left:
tmp = {'x':snake['x']-1, 'y':snake['y']}
elif direction == down:
tmp = {'x':snake['x'], 'y':snake['y']+1}
elif direction == up:
tmp = {'x':snake['x'], 'y':snake['y']-1}
elif direction == right:
tmp = {'x':snake['x']+1, 'y':snake['y']}
snake = snake.insert(0, tmp)
#画出蛇
def DrawSnake(screen, snake):
for i in snake:
x = i['x'] * cellSize
y = i['y'] * cellSize
tmp = (x, y, cellSize, cellSize)
pygame.draw.rect(screen, colorDarkBlue, tmp)
tmp = (x+3, y+3, cellSize-6, cellSize-6)
pygame.draw.rect(screen, colorBlue, tmp)
#创造食物
def CreateFood(screen):
xy = {'x':random.randint(0, mpSize-1), 'y':random.randint(0, mpSize-1)}
return xy
#画出食物
def DrawFood(screen, xy):
x = xy['x'] * cellSize
y = xy['y'] * cellSize
appleRect = (x, y, cellSize, cellSize)
pygame.draw.rect(screen, colorGreen, appleRect)
#画出分数
def DrawScore(screen, score):
font = pygame.font.Font("./font/msyh.ttc", fontSize)
fontBuffer = font.render("得分:%s" % score, True, colorRed)
screen.blit(fontBuffer, (600 ,0))
#判断蛇转弯的方向
def justiceSnakeTurn(event, direction):
if event.type == pygame.KEYDOWN:
if event.key in (pygame.K_LEFT, pygame.K_a) and direction != right:
direction = left
elif event.key in(pygame.K_RIGHT, pygame.K_d) and direction != left:
direction = right
elif event.key in (pygame.K_UP, pygame.K_w) and direction != down:
direction = up
elif event.key in (pygame.K_DOWN, pygame.K_s) and direction != up:
direction = down
return direction
#判断游戏是否应该结束
def justiceGameOver(event):
if event.type == pygame.QUIT:
terminate()
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_q or event.key == pygame.K_ESCAPE:
terminate()
main() 厉害 这么好的贴竟然沉了! 牛 F:\Python\python.exe "F:/Program Files/untitled/3.py"
pygame 1.9.6
Hello from the pygame community. https://www.pygame.org/contribute.html
Traceback (most recent call last):
File "F:/Program Files/untitled/3.py", line 195, in <module>
main()
File "F:/Program Files/untitled/3.py", line 32, in main
imgGameStart = pygame.image.load('./img/gameStart.jpg')
pygame.error: Couldn't open ./img/gameStart.jpg
这是什么错误啊 17851305596 发表于 2020-4-14 00:46
F:\Python\python.exe "F:/Program Files/untitled/3.py"
pygame 1.9.6
Hello from the pygame community ...
这个是无法打开那个图片。
因为我没有写异常处理，所以他会直接报错。
你去github里吧源码整个都下载下就可以了。
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