导入模块
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)
LightGrey = pygame.Color(220, 220, 220)
定义gameOver函数，游戏结束时的界面
def gameOver(playSurface, score):
# 显示GAME OVER并定义字体以及大小
gameOverFont = pygame.font.Font('arial.ttf', 72)
gameOverSurf = gameOverFont.render('Game Over', True, greyColour)
gameOverRect = gameOverSurf.get_rect()
gameOverRect.midtop = (320, 125)
playSurface.blit(gameOverSurf, gameOverRect)
# 显示分数并定义字体和大小
scoreFont = pygame.font.Font('arial.ttf', 48)
scoreSurf = scoreFont.render('SCORE: ' + str(score), True, greyColour)
scoreRect = scoreSurf.get_rect()
scoreRect.midtop = (320, 225)
playSurface.blit(scoreSurf, scoreRect)
pygame.display.flip() # 刷新显示界面
# 休眠5秒后自动关闭
time.sleep(5)
pygame.quit()
sys.exit()
定义main函数
def main():
# 初始化pygame
pygame.init()
pygame.mixer.init()
fpsClock = pygame.time.Clock()
# 创建pygame显示层
playSurface = pygame.display.set_mode((640, 480))
# 定义标题
pygame.display.set_caption('Snake Go!')
# 加载资源图片，game.ico包含在最后的文件中
image = pygame.image.load('game.ico')
# 设置图标
pygame.display.set_icon(image)
# 加载音乐，MP3音乐文件放在代码文件所在文件夹中
pygame.mixer.music.load("天地孤影任我行.mp3")
# 初始化变量
snakePosition = [100, 100] # 蛇头位置
snakeSegments = [[100, 100], [80, 100], [60, 100]] # 初始长度为3个单位
raspberryPosition = [300, 300] # 树莓位置
raspberrySpawned = 1 # 树莓个数
direction = 'right' # 初始方向
changeDirection = direction
score = 0 # 初始分数
while True:
# 播放音乐天地孤影任我行，本人喜欢
if pygame.mixer.music.get_busy()==False:
pygame.mixer.music.play()
# 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: # 按esc退出游戏
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[0] += 20
if direction == 'left':
snakePosition[0] -= 20
if direction == 'up':
snakePosition[1] -= 20
if direction == 'down':
snakePosition[1] += 20
# 将蛇头的位置加入列表之中
snakeSegments.insert(0, list(snakePosition))
# 判断是否吃掉了树莓
if snakePosition[0] == raspberryPosition[0] and snakePosition[1] == raspberryPosition[1]:
raspberrySpawned = 0
else:
snakeSegments.pop() # 每次将最后一单位蛇身踢出列表
# 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 = [int(x * 20), int(y * 20)]
raspberrySpawned = 1
score += 1
# 绘制pygame显示层
playSurface.fill(blackColour)
for position in snakeSegments[1:]: # 蛇身为白色
pygame.draw.rect(playSurface, whiteColour, Rect(position[0], position[1], 20, 20))
pygame.draw.rect(playSurface, LightGrey, Rect(snakePosition[0], snakePosition[1], 20, 20)) # 蛇头为灰色
pygame.draw.rect(playSurface, redColour, Rect(raspberryPosition[0], raspberryPosition[1], 20, 20)) # 树莓为红色
# 刷新pygame显示层
pygame.display.flip()
# 判断是否死亡
if snakePosition[0] > 620 or snakePosition[0] < 0: # 超出左右边界
gameOver(playSurface, score)
if snakePosition[1] > 460 or snakePosition[1] < 0: # 超出上下边界
gameOver(playSurface, score)
for snakeBody in snakeSegments[1:]: # 蛇碰到自己身体
if snakePosition[0] == snakeBody[0] and snakePosition[1] == snakeBody[1]:
gameOver(playSurface, score)
# 控制游戏速度,长度越长速度越快
if len(snakeSegments) < 40:
speed = 6 + len(snakeSegments) // 4
else:
speed = 16
fpsClock.tick(speed)
if __name__ == "__main__":
main()
