「程序源代码」python像素贪吃蛇

关键字：python 游戏 贪吃蛇

正文 | 内容

介绍

python像素贪吃蛇小游戏，可以通过上下左右键控制蛇头转向,点击回车键开始游戏。简单好玩

软件架构

基于python3.0以上版本 基于pygame模块开发

安装教程

使用说明

游戏截图

"""

功能：python像素贪吃蛇

作者：程序源代码

时间：2020-07-15

"""

# 导入相关模块与函数

import random

import pygame

import sys

from pygame.locals import *

# 初始化pygame

pygame.init()

# 表明四个全局变量

global Speed

global Trackingtime

global Displayobject

global WindowTypeface

Speed = 8

Trackingtime = pygame.time.Clock() # 创建跟踪时间对象

Displayobject = pygame.display.set_mode((640, 480)) # 设置窗口高宽640*480

WindowTypeface = pygame.font.SysFont('Calibri.ttf', 25) # 创建Typeface对象并设置字体和字号

pygame.display.set_caption('像素贪吃蛇') # 设置窗口标题

backgroundcolor = (255, 255, 255) # 设置窗口底色为纯白色

# 侦测键盘操作

def CheckKeyboardPress():

if len(pygame.event.get(QUIT)) > 0:

pygame.quit()

sys.exit()

keyUpEvents = pygame.event.get(KEYUP)

if len(keyUpEvents) == 0:

return None

return keyUpEvents[0].key

# 游戏开始界面设计

def DesignStartScreen():

global Speed

titleTypeface1 = pygame.font.SysFont('Calibri.ttf', 200)

titleTypeface2 = pygame.font.SysFont('Calibri.ttf', 60)

titleContent1 = titleTypeface1.render('RETRO SNAKER', True, (0, 0, 0), (0, 0, 0)) # 设置主界面文字和大小

titleContent2 = titleTypeface2.render('RETRO SNAKER', True, (255, 0, 0))

KeyboardContent = WindowTypeface.render('Press any key to start', True, (0, 0, 0))

Displayobject.fill(backgroundcolor)

revolveContent1 = pygame.transform.rotate(titleContent1, 0)

revolveRect1 = revolveContent1.get_rect()

revolveRect1.center = (640 / 2, 480 / 2)

Displayobject.blit(revolveContent1, revolveRect1)

revolveContent2 = pygame.transform.rotate(titleContent2, 0)

revolveRect2 = revolveContent2.get_rect()

revolveRect2.center = (640 / 2, 480 / 2)

Displayobject.blit(revolveContent2, revolveRect2)

# 获得一个对象的rect，以便于设置其坐标位置

KeyboardRect = KeyboardContent.get_rect()

KeyboardRect.topleft = (640 - 200, 480 - 30)

Displayobject.blit(KeyboardContent, KeyboardRect.topleft)

pygame.display.update()

Trackingtime.tick(Speed)

while True:

if CheckKeyboardPress():

pygame.event.get() # 清除事件队列

return

# 游戏结束界面设计

def DesignGameOverScreen():

gameOverTypeface = pygame.font.SysFont('Calibri.ttf', 100)

gameoverContent = gameOverTypeface.render('Game Over', True, (0, 0, 0))

KeyboardContent = WindowTypeface.render('Press any key to restart', True, (0, 0, 0))

gameoverRect = gameoverContent.get_rect()

gameoverRect.center = (640 / 2, 480 / 2)

Displayobject.blit(gameoverContent, gameoverRect)

# 获得一个对象的rect，以便于设置其坐标位置

KeyboardRect = KeyboardContent.get_rect()

KeyboardRect.topleft = (640 - 220, 480 - 30)

Displayobject.blit(KeyboardContent, KeyboardRect.topleft)

pygame.display.update()

pygame.time.wait(600)

while True:

if CheckKeyboardPress():

pygame.event.get() # 清除事件队列

return

# 贪吃蛇蛇身设计

def DesignRetroSnaker(RetroSnakerCoords):

for coord in RetroSnakerCoords:

x = coord['x'] * 20 # 规定每行单元格的大小为20

y = coord['y'] * 20

RetroSnakerSegmentRect = pygame.Rect(x, y, 20, 20)

pygame.draw.rect(Displayobject, (0, 0, 255), RetroSnakerSegmentRect)

RetroSnakerInnerSegmentRect = pygame.Rect(x + 4, y + 4, 20 - 8, 20 - 8)

pygame.draw.rect(Displayobject, (173, 216, 230), RetroSnakerInnerSegmentRect)

# 苹果设计

def DesignApple(coord):

x = coord['x'] * 20 # 规定单元格的大小为20

y = coord['y'] * 20

appleRect = pygame.Rect(x, y, 20, 20)

pygame.draw.rect(Displayobject, (255, 0, 0), appleRect)

# 得分分数设计

def DesignScore(score):

scoreContent = WindowTypeface.render('Score: %s' % (score), True, (0, 0, 0))

scoreRect = scoreContent.get_rect()

scoreRect.topleft = (640 - 100, 10)

Displayobject.blit(scoreContent, scoreRect)

# 边框线设计

def DesignBorderline():

for x in range(0, 640, 640 - 1): # 绘制垂直线

pygame.draw.line(Displayobject, (0, 0, 0), (x, 0), (x, 480), 5)

for y in range(0, 480, 480 - 1): # 绘制平行线

pygame.draw.line(Displayobject, (0, 0, 0), (0, y), (640, y), 5)

# 设置游戏主要运行机制

def GameRunning():

global Speed

# 设置随机起点

startx = random.randint(5, 26) # 初始单元格位置横向在(5, 26)范围中选一个随机数

starty = random.randint(5, 18) # 初始单元格位置纵向在(5, 18)范围中选一个随机数

RetroSnakerCoords = [{'x': startx, 'y': starty},

{'x': startx - 1, 'y': starty},

{'x': startx - 2, 'y': starty}] # RetroSnakerCoords：列表，贪吃蛇坐标位置

direction = 'right' # 初始方向朝右

# 设置苹果在一个随机位置

apple = {'x': random.randint(0, 31), 'y': random.randint(0, 23)}

while True: # 游戏主循环

# 判断键盘事件

for event in pygame.event.get(): # 事件处理循环

if event.type == KEYDOWN:

if event.key == K_LEFT and direction != 'right':

direction = 'left'

elif event.key == K_RIGHT and direction != 'left':

direction = 'right'

elif event.key == K_UP and direction != 'down':

direction = 'up'

elif event.key == K_DOWN and direction != 'up':

direction = 'down'

# 根据方向改变蛇头的坐标

if direction == 'up':

m = {'x': RetroSnakerCoords[0]['x'], 'y': RetroSnakerCoords[0]['y'] - 1}

elif direction == 'down':

m = {'x': RetroSnakerCoords[0]['x'], 'y': RetroSnakerCoords[0]['y'] + 1}

elif direction == 'left':

m = {'x': RetroSnakerCoords[0]['x'] - 1, 'y': RetroSnakerCoords[0]['y']}

elif direction == 'right':

m = {'x': RetroSnakerCoords[0]['x'] + 1, 'y': RetroSnakerCoords[0]['y']}

# 通过向贪吃蛇移动的方向添加一个单元格来加长贪吃蛇

RetroSnakerCoords.insert(0, m)

# 侦测贪吃蛇是否吃到苹果

if RetroSnakerCoords[0]['x'] == apple['x'] and RetroSnakerCoords[0]['y'] == apple['y']:

apple = {'x': random.randint(0, 31), 'y': random.randint(0, 23)} # 在随机位置放置一个苹果

Speed = Speed + 0.2

else:

del RetroSnakerCoords[-1] # 去除贪吃蛇的尾段

# 侦测贪吃蛇是否触碰到窗口边缘或自身

if RetroSnakerCoords[0]['x'] == -1 or RetroSnakerCoords[0]['x'] == 32 or RetroSnakerCoords[0]['y'] == -1 or \

RetroSnakerCoords[0]['y'] == 24:

return # 游戏结束

for RetroSnakerBody in RetroSnakerCoords[1:]:

if RetroSnakerCoords[0]['x'] == RetroSnakerBody['x'] and RetroSnakerCoords[0]['y'] == RetroSnakerBody['y']:

return # 游戏结束

# 绘制相关角色在窗口中

Displayobject.fill(backgroundcolor)

DesignRetroSnaker(RetroSnakerCoords)

DesignApple(apple)

DesignScore(len(RetroSnakerCoords) - 3)

DesignBorderline()

pygame.display.update() # 让绘制的东西显示在屏幕上

Trackingtime.tick(Speed)

# 主函数

if __name__ == '__main__':

DesignStartScreen() # 初始化游戏开始界面

while True:

GameRunning() # 游戏开始

DesignGameOverScreen() # 游戏结束