pygame 、random 、pyautogui
1.設定初始引數
設定每個網格大小為 20 px ，size可以隨意修改但最好為20的倍數，設定初始方向向右，初始蛇長為 3 。
# 初始化引數
size = 320
screen = pygame.display.set_mode([size,size],0 , 32)
pygame.display.set_caption("貪吃蛇")
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]]
# 初始蛇長為3
len_snake = 3
# 初始食物座標
food_coor = [random.randint(0, cell_num - 1) * 20, random.randint(0, cell_num - 1) * 20, 20, 20]
# 蛇移動速度
clock = pygame.time.clock()
2.鍵盤控制
鍵盤上下左右控制蛇方向，禁止反向。
3.食物
蛇頭吃到食物後，蛇長加一 ，random 乙個隨機座標，如果座標再蛇身上則繼續 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. 勝負判斷
蛇頭與蛇身碰撞判輸，彈出遊戲結束視窗，說明最終蛇長為多長。
if body_snake[-1] in body_snake[-2:-len_snake -1 :-1]:
pyautogui.alert(text='遊戲結束,最終蛇長為{}'.format(len_snake))
exit()
**import pygame , random ,pyautogui
from pygame.locals import *
# 初始化引數
size = 500
screen = pygame.display.set_mode([size,size],0 , 32)
pygame.display.set_caption("貪吃蛇")
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]]
# 初始蛇長為3
len_snake = 3
# 初始食物座標
food_coor = [random.randint(0, cell_num - 1) * 20, random.randint(0, cell_num - 1) * 20, 20, 20]
# 蛇移動速度
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])
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_s程式設計客棧nake - 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)
# 主迴圈
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))
# 方向規則
if dir_snake == 'u':
y -= 20
elif dir_snake == 'r':
x += 20
elif dir_snake == 'd':
y += 20
eli程式設計客棧f dir_snake == 'l':
x -= 20
# 鍵盤方向控制
if event.type == yyvacpxliokeydown:
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 != 'lyyvacpxlio':
dir_snake = 'r'
elif event.key == k_up and dir_snake != 'd':
dir_snake = 'u'
# 撞牆之後
if x < 0:
x += size
elif x >= size:
x -= size
elif y < 0:
y += size
elif y >= size:
y -= size
# draw蛇體
body_snake.append([x,y])
snake(body_snake)
food()
# 吃到食物後food換位置
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
# 遊戲結束
if body_snake[-1] in body_snake[-2:-len_snake -1 :-1]:
pyautogui.alert(text='遊戲結束,最終蛇長為{}'.format(len_snake))
exit()
# 格線
bg()
# 右下角顯示蛇長
font = pygame.font.sysfont("simsunnsimsun", 40)
text_su***ce = font.render("{}".format(len_snake), true, (255,255, 255))
screen.blit(text_su***ce , (size-40,size-40))
pygame.display.update()
# 蛇的移動速度隨著蛇的長度而越來越快
clock.tick(len_snake * 2)
if __name__ == www.cppcns.com'__main__':
pygame.init()
running()
輸出結果
本文標題: python貪吃蛇小遊戲例項分享
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