save project

snake.py

@@ -4,7 +4,7 @@ from pygame import locals
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
-FPSCLOCE = pygame.time.Clock()
+FPSCLOCK = pygame.time.Clock()
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 
@@ -28,13 +28,34 @@ while True:
         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'
+                snake_head = right
+            if event.key == locals.K_LEFT and setheading != "right":
+                setheading = 'left'
+                snake_head = left
+            if event.key == locals.K_UP and setheading != "down":
+                setheading = 'up'
+                snake_head = up
+            if event.key == locals.K_DOWN and setheading != "up":
+                setheading = 'down'
+                snake_head = 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,  position[-1])
+    screen.blit(snake_head,  position[-1])
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body,position[i])