save project

snake.py

@@ -9,26 +9,55 @@ screen = pygame.display.set_mode((660, 480))
 
 time=pygame.time.Clock()
 x=240
+y=120
 # 背景
 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')
+position = [(180,90),(180,120),(210,120),(x,y)]
+SETHEADING = 'right'
+sh = 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()
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and SETHEADING != 'left':
+                SETHEADING = 'right'
+                sh = right
+            if event.key == locals.K_LEFT and SETHEADING != 'right':
+                    SETHEADING = 'left'
+                    sh = left
+            if event.key == locals.K_UP and SETHEADING != 'down':
+                    SETHEADING = 'up'
+                    sh = up
+            if event.key == locals.K_DOWN and SETHEADING != 'up':
+                    SETHEADING = 'down'
+                    sh = down
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x, 120))
-    x+=30
+    screen.blit(right, (x, y))
+    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)
     # 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))
+    screen.blit(body, (position[-1]))
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面