save project

snake.py

@@ -5,9 +5,6 @@ from pygame import locals
 pygame.init()
 #生成时钟
 fps_clock = pygame.time.Clock()
-#生成列表
-x,y=240,120
-position=[(180,90),(180,120),(210,120),(x,y)]
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
@@ -15,22 +12,54 @@ screen = pygame.display.set_mode((660, 480))
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 
+#生成列表
+x,y=240,120
+position=[(180,90),(180,120),(210,120),(x,y)]
+setheading="right"
+snake_head=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
+        elif 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
+            
 
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
+    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)
-    screen.blit(right,position[-1])
+
+    screen.blit(snake_head,position[-1])
     for i in range(len(position)-1):
         screen.blit(body,position[i])
 
@@ -38,4 +67,4 @@ while True:
     screen.blit(food, (360, 300))
     # 刷新画面  
     pygame.display.update()
-    fps_clock.tick(5)
\ No newline at end of file
+    fps_clock.tick(3)
\ No newline at end of file