save project

snake.py

@@ -11,30 +11,60 @@ 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')
 x = 240
 y = 120
 position = [(180,90),(180,120),(210,120),(x,y)]
 p = pygame.time.Clock()
-
+setheading = 'right'
+snake_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()
-    x = x+30
+        elif event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheading !='left':
+                setheading = 'right'
+                snake_head = right
+
+            if event.key == locals.K_LEFT and setheading !='right':
+                setheading = 'left'
+                snake_head = left
+
+            if event.key == locals.K_UP and setheading !='down':
+                setheading = 'up'
+                snake_head = up
+
+            if event.key == locals.K_DOWN and setheading !='up':
+                setheading = 'down'
+                snake_head = down
+
+    if setheading == 'right':
+        x += 30            
+
+    elif setheading == 'left':
+        x -= 30  
+
+    elif setheading == 'up':
+        y -= 30  
+
+    else:
+        y += 30
+    
     # 将背景图画上去
     # 将贪吃蛇画上去
     position.append((x,y))
     position.pop(0)
     screen.blit(background,(0,0))
-
-
-
     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))
+
     # 将果实画上去
     screen.blit(food, (360, 300))
     
@@ -45,5 +75,6 @@ while True:
 
 
 
+
     pygame.display.update()
     p.tick(3)
\ No newline at end of file