save project

snake.py

@@ -6,9 +6,13 @@ background=pygame.image.load('bg.png')
 right=pygame.image.load('right.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
 position=[(180,90),(180,120),(210,120),(x,y)]
+setheading="right"
+snake_head=right
 # 创建一个窗口
 screen=pygame.display.set_mode((660,480))
 FPSCLOCK=pygame.time.Clock()
@@ -16,17 +20,37 @@ while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
-
-    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
     position.append((x,y))
     position.pop(0)
     screen.blit(background,(0,0))
-    screen.blit(right,position[-1])
+    screen.blit(snake_head,position[-1])
     screen.blit(right,(x,y))
     for i in range(len(position)-1):
         screen.blit(body,position[i])
 
-#    screen.blit(food,(360,300))
+    screen.blit(food,(360,300))
  #   screen.blit(body,(210,120))
   #  screen.blit(body,(180,120))
     pygame.display.update()