save project

snake.py

+import pygame
+from pygame import locals#locals为pygame子模块(必写)
+import random
+#初始化pygame,为使用硬件做准备
+pygame.init()
+#创建一个窗口
+screen=pygame.display.set_mode((660,480),flags=0,depth=0,display=0)
+FPSLOCK=pygame.time.Clock()
+#背景
+background=pygame.image.load('bg.png')
+right=pygame.image.load('right.png')
+food=pygame.image.load('apple.png')
+body=pygame.image.load('body.png')
+left=pygame.image.load('left.png')
+up=pygame.image.load('up.png')
+down=pygame.image.load('down.png')
+my_font=pygame.font.Font('neuropol.ttf',18)#字体
+
+x,y=240,120
+position = [(180, 90), (180, 120), (210, 120), (x, y)]
+a_x=360
+a_y=300
+
+setheading='right'
+snake_head=right
+score=0
+
+while True:
+    for event in pygame.event.get():
+        if event.type == locals.QUIT:
+            #接收到退出事件后退出程序
+            exit()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading != 'left':
+                setheading='right'
+            if event.key==locals.K_LEFT and setheading != 'right':
+                setheading='left'
+            if event.key==locals.K_UP and setheading != 'down':
+                setheading='up'
+            if event.key==locals.K_DOWN and setheading != 'up':
+                setheading='down'
+    #设置贪吃蛇的头部坐标
+    if setheading=='right':
+        x+=30
+        snake_head=right
+    elif setheading=='left':
+        x-=30
+        snake_head=left
+    elif setheading=='up':
+        y-=30
+        snake_head=up
+    else:
+        y+=30
+        snake_head=down
+    position.append((x,y))
+    #刷新苹果
+    if x==a_x and y==a_y:
+        score+=1
+        nx=random.randint(1,22)
+        ny=random.randint(1,16)
+        a_x=nx*30-30
+        a_y=ny*30-30
+    else:
+        position.pop(0)
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
+    #将背景画上去
+    screen.blit(background,(0,0))
+    #将贪吃蛇画上去
+    screen.blit(snake_head,position[-1])
+    #将贪吃蛇的身体画上去
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+    #将果实画上去
+    screen.blit(food,(a_x,a_y))
+    #绘制分数
+    info='Score:'+str(score)
+    text=my_font.render(info,True,(0,0,0))
+    screen.blit(text,(540,10))
+    #刷新画面
+    pygame.display.update()
+    FPSLOCK.tick(3)
\ No newline at end of file