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snake.py

@@ -7,26 +7,82 @@ pygame.init()
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 
+fs = pygame.time.Clock()
 # 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')
 
+x,y = 240,120
+position =[(180, 90),(180, 120),(210, 120),(x, y)]
+setheading = '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'    
+            if event.key ==locals.K_Left and setheading !='left':
+                setheading = 'right'
+            if event.key ==locals.K_UP and setheading !='down':
+                setheading = 'up'
+            if event.key ==locals.K_RIGHT and setheading !='left':
+                setheading = 'down'
+    if setheading == 'right':
+        x += 30
+    if setheading == 'left':
+        x -= 30
+    if setheading == 'left':
+        y -= 30
+    if setheading == 'up':
+        y += 30
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+    x+=30
+    position.append((x,y))
+    position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
+   
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    screen.blit(right, position[-1])
     # 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))
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    pygame.display.update()
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+    pygame.display.update()
+    fs.tick(3)
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