Python贪吃蛇游戏编写代码

Python  /  管理员 发布于 7年前   189

最近在学Python，想做点什么来练练手，命令行的贪吃蛇一般是C的练手项目，但是一时之间找不到别的，就先做个贪吃蛇来练练简单的语法。

由于Python监听键盘很麻烦，没有C语言的kbhit()，所以这条贪吃蛇不会自己动，运行效果如下：

要求：用#表示边框，用*表示食物，o表示蛇的身体，O表示蛇头，使用wsad来移动

Python版本：3.6.1

系统环境：Win10

类：

　　board：棋盘，也就是游戏区域

　　snake：贪吃蛇，通过记录身体每个点来记录蛇的状态

　　game：游戏类

　　本来还想要个food类的，但是food只需要一个坐标，和一个新建，所以干脆使用list来保存坐标，新建food放在game里面，从逻辑上也没有太大问题

源码：

# Write By Guobao# 2017/4//7## 贪吃蛇# 用#做边界，*做食物，o做身体和头部# python 3.6.1import copyimport randomimport osimport msvcrt# the board class, used to put everythingclass board: __points =[] def __init__(self):  self.__points.clear()  for i in range(22):   line = []   if i == 0 or i == 21:    for j in range(22):     line.append('#')   else:    line.append('#')    for j in range(20):     line.append(' ')    line.append('#')   self.__points.append(line) def getPoint(self, location):  return self.__points[location[0]][location[1]] def clear(self):  self.__points.clear()  for i in range(22):   line = []   if i == 0 or i == 21:    for j in range(22):     line.append('#')   else:    line.append('#')    for j in range(20):     line.append(' ')    line.append('#')   self.__points.append(line) def put_snake(self, snake_locations):  # clear the board  self.clear()  # put the snake points  for x in snake_locations:   self.__points[x[0]][x[1]] = 'o'  # the head  x = snake_locations[len(snake_locations) - 1]  self.__points[x[0]][x[1]] = 'O' def put_food(self, food_location):  self.__points[food_location[0]][food_location[1]] = '*' def show(self):  os.system("cls")  for i in range(22):   for j in range(22):    print(self.__points[i][j], end='')   print()# the snake classclass snake: __points = [] def __init__(self):  for i in range(1, 6):   self.__points.append([1, i]) def getPoints(self):  return self.__points # move to the next position # give the next head def move(self, next_head):  self.__points.pop(0)  self.__points.append(next_head) # eat the food # give the next head def eat(self, next_head):  self.__points.append(next_head) # calc the next state # and return the direction def next_head(self, direction='default'):  # need to change the value, so copy it  head = copy.deepcopy(self.__points[len(self.__points) - 1])  # calc the "default" direction  if direction == 'default':   neck = self.__points[len(self.__points) - 2]   if neck[0] > head[0]:    direction = 'up'   elif neck[0] < head[0]:    direction = 'down'   elif neck[1] > head[1]:    direction = 'left'   elif neck[1] < head[1]:    direction = 'right'  if direction == 'up':   head[0] = head[0] - 1  elif direction == 'down':   head[0] = head[0] + 1  elif direction == 'left':   head[1] = head[1] - 1  elif direction == 'right':   head[1] = head[1] + 1  return head# the gameclass game: board = board() snake = snake() food = [] count = 0 def __init__(self):  self.new_food()  self.board.clear()  self.board.put_snake(self.snake.getPoints())  self.board.put_food(self.food) def new_food(self):  while 1:   line = random.randint(1, 20)   column = random.randint(1, 20)   if self.board.getPoint([column, line]) == ' ':    self.food = [column, line]    return def show(self):  self.board.clear()  self.board.put_snake(self.snake.getPoints())  self.board.put_food(self.food)  self.board.show() def run(self):  self.board.show()  # the 'w a s d' are the directions  operation_dict = {b'w': 'up', b'W': 'up', b's': 'down', b'S': 'down', b'a': 'left', b'A': 'left', b'd': 'right', b'D': 'right'}  op = msvcrt.getch()  while op != b'q':   if op not in operation_dict:    op = msvcrt.getch()   else:    new_head = self.snake.next_head(operation_dict[op])    # get the food    if self.board.getPoint(new_head) == '*':     self.snake.eat(new_head)     self.count = self.count + 1     if self.count >= 15:      self.show()      print("Good Job")      break     else:      self.new_food()      self.show()    # 反向一Q日神仙    elif new_head == self.snake.getPoints()[len(self.snake.getPoints()) - 2]:     pass    # rush the wall    elif self.board.getPoint(new_head) == '#' or self.board.getPoint(new_head) == 'o':     print('GG')     break    # normal move    else:     self.snake.move(new_head)     self.show()   op = msvcrt.getch()game().run()

笔记：

　　1.Python 没有Switch case语句，可以利用dirt来实现

　　2.Python的=号是复制，复制引用，深复制需要使用copy的deepcopy()函数来实现

　　3.即使在成员函数内，也需要使用self来访问成员变量，这和C++、JAVA很不一样

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。