本文实例为大家分享了python实现贪吃蛇小游戏的具体代码,供大家参考,具体内容如下
使用的库
pygame 、random 、pyautogui
流程简述
1.设置初始参数
设置每个网格大小为 20 px ,size可以随意修改但最好为20的倍数,设置初始方向向右,初始蛇长为 3 。
# 初始化参数 size = www.cppcns.com320 screen = pygame.display.set_mode([size,size],0 , 32) pygame.display.set_caption("贪吃蛇") cell_size = 20 cell_num = int(size/20) x , y = [60,0] # 初始方向向右 dir_snake = 'R' body_snake = [[0,0],[20,0],[40,0],[60,0]] # 初始蛇长为3 len_snake = 3 # 初始食物坐标 food_coor = [random.randint(0, cell_num - 1) * 20, random.randint(0, cell_num - 1) * 20, 20, 20] # 蛇移动速度 clock = pygame.time.Clock()
2.键盘控制
键盘上下左右控制蛇方向,禁止反向。
3.食物
蛇头吃到食物后,蛇长加一 ,random 一个随机坐标,如果坐标再蛇身上则继续 random。
if [x,y] == food_coor[:2]: food_coor = [random.randint(0, cell_num - 1) * 20, random.randint(0, cell_num - 1) * 20, 20, 20] if food_coor[:2] in body_snake[-2:-len_snake -1 :-1]: food_coor = [random.randint(0, cell_num - 1) * 20, random.randint(0, cell_num - 1) * 20, 20, 20] len_snake +=1
4. 胜负判断
蛇头与蛇身碰撞判输,弹出游戏结束窗口,说明最终蛇长为多长。
if body_snake[-1] in body_snake[-2:-len_snake -1 :-1]: pyautogui.alert(text='游戏结束,最终蛇长为{}'.format(len_snake)) exit()
代码及结果
代码
import pygame , random ,pyautogui from pyga编程客栈me.locals import * # 初始化参数 size = 500 screen = pygame.display.set_mode([size,size],0 , 32) pygame.display.set_caption("贪吃蛇") cell_size = 20 cell_num = int(size/20) x , y = [60,0] # 初始方向向右 dir_snake = 'R' body_snake = [[0,0],[20,0],[40,0],[60,0]] # 初始蛇长为3 len_snake = 3 # 初始食物坐标 food_cwww.cppcns.comoor = [random.randint(0, cell_num - 1) * 20, random.randint(0, cell_num - 1) * 20, 20, 20] # 蛇移动速度 clock = pygame.time.Clock() # bg def bg(): for i in range(0, size , int(cell_size)): pygame.draw.line(screen,[72,72,72],[i,0],[i,size]) HmADhHBE for i in range(0, size, int(cell_size)): pygame.draw.line(screen, [72, 72, 72], [0, i], [size,i]) # 蛇 def snake(K): for x,y in K[:-len_snake - 1:-1]: pygame.draw.rect(screen,[255,255,255],[x,y,20,20],0) # 食物 def food(): pygame.draw.rect(screen,[255,0,0],food_coor,0) # 主循环 def running(): global x ,y , dir_snake ,food_coor , len_snake while True: for event in pygame.event.get(): if event.type == QUIT: exit() screen.fill((40, 43, 46)) # 方向规则 if dir_snake == 'U': y -= 20 elif dir_snake == 'R': x += 20 elif dir_snake == 'D': y += 20 elif dir_snake == 'L': x -= 20 # 键盘方向控制 if event.type == KEYDOWN: if event.key == K_LEFT and dir_snake != 'R': dir_snake = 'L' elif event.key == K_DOWN and dir_snake != 'U': dir_snake = 'D' elif event.key == K_RIGHT and dir_snake != 'L': dir_snake = 'R' elif event.key == K_UP and dir_snake != 'D': dir_snake = 'U' # 撞墙之后 if x < 0: x += size elif x >= size: x -= size elif y < 0: y += size elif y >= size: y -= size # draw蛇体 body_snake.append([x,y]) snake(body_snake) food() # 吃到食物后food换位置 if [x,y] == food_coor[:2]: food_coor = [random.randint(0, cell_num - 1) * 20, random.randint(0, cell_num - 1) * 20, 20, 20] if food_coor[:2] in body_snake[-2:-len_snake -1 :-1]: food_coor = [random.randint(0, cell_num - 1) * 20, random.randint(0, cell_num - 1) * 20, 20, 20] len_snake +=1 # 游戏结束 if body_snakehttp://www.cppcns.com[-1] in body_snake[-2:-len_snake -1 :-1]: pyautogui.alert(text='游戏结束,最终蛇长为{}'.format(len_snake)) exit() # 格线 bg() # 右下角显示蛇长 font = pygame.font.SysFont("simsunnsimsun", 40) text_surface = font.render("{}".format(len_snake), True, (255,255, 255)) screen.blit(text_surface , (size-40,size-40)) pygame.display.update() # 蛇的移动速度随着蛇的长度而越来越快 clock.tick(len_snake * 2) if __name__ == '__main__': pygame.init() running()
输出结果
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