save project

snake.py

@@ -12,10 +12,13 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.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,y=240,120
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
 position=[(180,90),(180,120),(210,120),(x,y)]
 setheading="right"
 setheading="right"
-
+snack_head=right
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
@@ -24,19 +27,31 @@ while True:
         if event.type==locals.KEYDOWN:
         if event.type==locals.KEYDOWN:
             if event.key==locals.K_RIGHT and setheading !="left":
             if event.key==locals.K_RIGHT and setheading !="left":
                 setheading="right"
                 setheading="right"
+                snack_head=right
             if event.key==locals.K_LEFT and setheading !="right":
             if event.key==locals.K_LEFT and setheading !="right":
                 setheading="left"
                 setheading="left"
+                snack_head=left
             if event.key==locals.K_UP and setheading !="down":
             if event.key==locals.K_UP and setheading !="down":
                 setheading="up"
                 setheading="up"
+                snack_head=up
             if event.key==locals.K_DOWN and setheading !="up":
             if event.key==locals.K_DOWN and setheading !="up":
                 setheading="down"
                 setheading="down"
-    x+=30
+                snack_head=down
+    if setheading=="right":
+        x+=30
+    elif setheading=="left":
+        x-=30
+    elif setheading=="up":
+        y-=30
+    else:
+        y+=30
+
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
-    screen.blit(right, (x, y))
+    screen.blit(snack_head, position[-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
     for i in range(len(position)-1):
         screen.blit(body,position[i])
         screen.blit(body,position[i])