save project

snake.py

@@ -12,30 +12,57 @@ 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')
+down = pygame.image.load('down.png')
+up = pygame.image.load('up.png')
 
 x=240
 y=120
 a=[(210,120),(180,120),(180,90),(x,y)]
+
+setheading='right'
+sanke_head='right'
+
 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()
+        elif event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading !='left':
+                setheading='right'
+                sanke_head='right'
+            if event.key==locals.K_LEFT and setheading !='right':
+                setheading='left'
+                sanke_head='left'
+            if event.key==locals.K_UP and setheading !='down':
+                setheading='up'
+                sanke_head='up'
+            if event.key==locals.K_DOWN and setheading !='up':
+                setheading='down'
+                sanke_head='down'
+
+    if setheading=='right':
         x+=30
-    a.append((x,y))
-    a.pop(0)
-    # 将背景图画上去
-    screen.blit(background,(0,0))
+    elif setheading=='left':
+        x-=30
+    elif setheading=='down':
+        y+=30
+    else:
+        y-=30
+
+a.append((x,y))
+a.pop(0)
+# 将背景图画上去
+screen.blit(background,(0,0))
     # 将贪吃蛇画上去
-    screen.blit(right,(x,y))
-    # 将贪吃蛇的身体画上去
-    # screen.blit(body,(210,120))
-    # screen.blit(body,(180,120))
-    # screen.blit(body,(180,90))
-    for i in range(len(a)-1):
+screen.blit(right,(x,y))
+
+for i in range(len(a)-1):
     screen.blit(body,a[i])
+
     # 将果实画上去
-    screen.blit(food,(360, 300))
+screen.blit(food,(360, 300))
     # 刷新画面
-    d.tick(3)
-    pygame.display.update()
\ No newline at end of file
+d.tick(3)
+pygame.display.update()
\ No newline at end of file