save project

snake.py

@@ -14,17 +14,38 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 x,y=240,120
 b=pygame.time.Clock()
-c=[(180,90),(180,120),(210,180),(x,y)]
-
+c=[(180,90),(180,120),(210,120),(x,y)]
 
 
+setheading="right"
+snack_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()
-    # 将背景图画上去
-    x=x+30
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading!="left":
+                setheading="right"
+                snack_head=right
+            if event.key==locals.K_LEFT and setheading!="right":
+                setheading="left"
+                snack_head=left# 将背景图画上去
+            if event.key==locals.K_UP and setheading!="down":
+                setheading="up"
+                snack_head=up
+            if event.key==locals.K_DOWN and setheading!="up":
+                setheading="down"
+                snack_head=down
+            
+    if setheading=="right":
+        x+=30
+    elif setheading=="left":
+        x-=30
+    elif setheading=="up":
+        y-=30
+    else:
+        y+=30
     c.append((x,y))
     c.pop(0)
 
@@ -32,10 +53,14 @@ while True:
    
     screen.blit(background, (0,0))
     # 将贪吃蛇画上去
-    screen.blit(right, (c[-1]))
+    screen.blit(snack_head, c[-1])
 
-    for i in range(len[c-1]):
+    for i in range(len(c)-1):
         screen.blit(body,c[i])
+    left=pygame.image.load("left.png")
+    up=pygame.image.load("up.png")
+    down=pygame.image.load("down.png")
+    
     # 将贪吃蛇的身体画上去
     # screen.blit(body, (210, 120))
     # screen.blit(body, (180, 120))