save project

snake.py

@@ -12,9 +12,14 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.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')
+left=pygame.image.load('left.png')
+up=pygame.image.load('up.png')
+down=pygame.image.load('down.png')
 x=240
 x=240
 y=120
 y=120
 p=[(180,90),(180,120),(210,120),(x,y)]
 p=[(180,90),(180,120),(210,120),(x,y)]
+s='right'
+s_1=right
 
 
 while True:
 while True:
     pygame.time.Clock().tick(3)
     pygame.time.Clock().tick(3)
@@ -23,16 +28,44 @@ while True:
         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()
+        if event.type == locals.KEYDOWN:
+            if event.key  == locals.K_RIGHT and s != 'left':
+                s='right'
+                s_1=right
+                
+            if event.key == locals.K_LEFT and s != 'right':
+                s='left'
+                s_1=left
+                
+            if event.key == locals.K_UP and s != 'up':
+                s='up'
+                s_1=up
+                
+            if event.key == locals.K_DOWN and s != 'down':
+                s='down'
+                s_1=down
+                
+
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
-    screen.blit(right, (x, y))
-    x+=30
+    if s=='right':
+        x+=30
+    if s=='left':
+        x-=30
+    if s=='up':
+        y-=30
+    if s=='down':
+        y+=30
+        
+    screen.blit(s_1, (x, y))
     
     
-    for i in range(len(p)-1):
-        screen.blit(body,p[i])
+
     p.append((x,y))
     p.append((x,y))
     p.pop(0)
     p.pop(0)
+    for i in range(len(p)-1):
+        screen.blit(body,p[i])
+    
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     # screen.blit(body, (210, 120))
     # screen.blit(body, (210, 120))
     # screen.blit(body, (180, 120))
     # screen.blit(body, (180, 120))