save project

snake.py

@@ -12,25 +12,51 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.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')
+down = pygame.image.load('down.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
 
 
 FPSCLOCK=pygame.time.Clock()
 FPSCLOCK=pygame.time.Clock()
 
 
 x,y=240,120
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
 position=[(180,90),(180,120),(210,120),(x,y)]
 
 
+setheading="right"
+snake_head=right
+
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         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()
+        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
 
 
-    x=x+30
+    if setheading=="right":
+        x=x+30
+    elif setheading=="left":
+        x=x-30
+    elif setheading=="up":
+        y=y-30
+    else:
+        y=y+30
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 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
     # 将贪吃蛇的身体画上去
     # screen.blit(body, (210, 120))
     # screen.blit(body, (210, 120))
     # screen.blit(body, (180, 120))
     # screen.blit(body, (180, 120))
@@ -41,4 +67,4 @@ while True:
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    FPSCLOCK.tick(5)
+    FPSCLOCK.tick(3)
\ No newline at end of file