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snake.py

@@ -6,27 +6,56 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
+FPS=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')
-
+up = pygame.image.load('up.png')
+left = pygame.image.load('left.png')
+down = pygame.image.load('down.png')
+x,y=240,120
+setheading='right'
+snake=right
+position=[(180, 90),(180, 120),(210, 120),(x,y)]
 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 != 'right':
+                setheading='left'
+            if event.key==locals.K_UP and setheading != 'down':
+                setheading='up'
+            if event.key==locals.K_DOWN  and setheading != 'up':
+                setheading='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)
     # 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(snake, (x, y))
     # 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]) 
+    # screen.blit(body, (210, 120))
+    # screen.blit(body, (180, 120))
+    # screen.blit(body, (180, 90))
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
+    FPS.tick(3)
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