save project

snake.py

@@ -13,9 +13,11 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
-
-
+up=pygame.image.load('up.png')
+left=pygame.image.load('left.png')
+down=pygame.image.load('down.png')
+setheading='right'
+snake_head=right
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
 while True:
@@ -24,12 +26,32 @@ while True:
             # 接收到退出事件后退出程序
             exit()
     # 将背景图画上去
-    x+=30
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_UP and setheading != 'down':
+                setheading="up"
+                snake_head=up
+            elif event.key==locals.K_RIGHT and setheading !='left':
+                setheading="right"
+                snake_head=right
+            elif event.key==locals.K_LEFT and setheading != 'right':
+                setheading='left'
+                snake_head=left
+            else:
+                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))
     # 将贪吃蛇画上去
-    screen.blit(right, (x,y))
+    screen.blit(snake_head, position[-1])
     # 将贪吃蛇的身体画上去
     #screen.blit(body, (210,120))
     #screen.blit(body, (180,120))
@@ -40,4 +62,4 @@ while True:
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(10)
\ No newline at end of file