save project

snake.py

@@ -10,8 +10,13 @@ screen = pygame.display.set_mode((660, 480))
 # 背景
 # 背景
 background = pygame.image.load('bg.png')
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.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')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
+setheading="right"
+look=right
 x,y=240,120
 x,y=240,120
 j=[(180,90),(180,120),(180,150),(x,y)]
 j=[(180,90),(180,120),(180,150),(x,y)]
 while True:
 while True:
@@ -19,8 +24,28 @@ while True:
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_UP and setheading !='down':
+                setheading="up"
+                look=up
+            if event.key==locals.K_DOWN and setheading !='up':
+                setheading="down"
+                look=down
+            if event.key==locals.K_RIGHT and setheading !='left':
+                setheading="right"
+                look=right
+            if event.key==locals.K_LEFT and setheading !='right':
+                setheading="left"
+                look=left
+    if setheading=="right":
+        x+=30
+    if setheading=="left":
+        x-=30
+    if setheading=="up":
+        y+=30
+    if setheading=="down":
+        y-=30
     # 将背景图画上去
     # 将背景图画上去
-    x=x+30
     j.append((x,y))
     j.append((x,y))
     j.pop(0)
     j.pop(0)
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))