save project

snake.py

@@ -12,21 +12,46 @@ FPSCLOCK = pygame.time.Clock()
 # 背景
 # 背景
 background = pygame.image.load('bg.png')
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.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')
-
+sd='right'
+sds=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:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
-    x+=30
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and sd != 'left':
+                sd='right'
+                sds=right
+            if event.key == locals.K_LEFT and sd != 'right':
+                sd='left'
+                sds=left
+            if event.key == locals.K_DOWN and sd != 'up':
+                sd='down'
+                sds=down
+            if event.key == locals.K_UP and sd != 'down':
+                sd='up'
+                sds=up
+    if sd == 'up':
+        y-=30
+    elif sd == 'down':
+        y+=30
+    elif sd == 'left':
+        x-=30
+    else:
+        x+=30
     # 将背景图画上去
     # 将背景图画上去
-    screen.blit(background, (0, 0))
     p.append((x,y))
     p.append((x,y))
     p.pop(0)
     p.pop(0)
+    screen.blit(background, (0, 0))
+    
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
-    screen.blit(right, p[-1])
+    screen.blit(sds, p[-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(p)-1):
     for i in range(len(p)-1):
         screen.blit(body, p[i])
         screen.blit(body, p[i])
@@ -34,4 +59,4 @@ while True:
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    FPSCLOCK.tick(3)
+    FPSCLOCK.tick(5)