save project

snake.py

@@ -5,37 +5,55 @@ from pygame import locals
 pygame.init()
 
 # 创建一个窗口
-x,y=240,120
-p=[(180,90)],(180,120),(210,120),(x,y)
 screen = pygame.display.set_mode((660, 480))
-c=pygame.time.Clock()
+
+FPSCLOCK = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
 # 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 
+
+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()
-    x+=30
-    p.append((x,y))
-    p.pop(0)     
-    # 将背景图画上去
+        if event.type==locals.KEYDOWN:
+            if enevt.key==locals.K_RIGHT and setheading!="left":
+                setheading="right"
+            if enevt.key==locals.K_LEFT and setheading!="right":
+                setheading="left"
+            if enevt.key==locals.K_UP and setheading!="down":
+                setheading="up"
+            if enevt.key==locals.K_DOWN and setheading!="up":
+                setheading="down"
+    elif setheading=="right":
+        x-=30
+    elif setheading=="left":
+        x+=30
+    elif setheading=="up":
+        y-=30
+    else:
+        y+=30
+        
+    position.append((x, y))
+    position.pop(0)
+    
     screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
-
-    screen.blit(right,p[-1]
-    for i in range(right,(x,y)):
-        screen.blit(body,p[i])
+    # 将贪吃蛇的头画上去
+    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
-    c.tick(3)
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    FPSCLOCK.tick(3)