save project

snake.py

@@ -13,23 +13,52 @@ 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')
+left=pygame.image.load('left.png')
+up=pygame.image.load('up.png')
+down=pygame.image.load('down.png')
 x=240
 x=240
 y=120
 y=120
 positon=[(180,90),(180,120),(210,120),(x,y)]
 positon=[(180,90),(180,120),(210,120),(x,y)]
 FPS=pygame.time.Clock()
 FPS=pygame.time.Clock()
+
+setheading="right"
+snake_head=right
+
 while True:
 while True:
-    x += 30
-    
+
     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()
+        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
+
     
     
     
     
     # 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,positon[-1])
+    screen.blit(snake_head,positon[-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     for i in range(3):
     for i in range(3):
         screen.blit(body,positon[i])
         screen.blit(body,positon[i])
@@ -40,6 +69,6 @@ while True:
     positon.append((x,y))
     positon.append((x,y))
     positon.pop(0)
     positon.pop(0)
     pygame.display.update()
     pygame.display.update()
-    FPS.tick(3)
+    FPS.tick(5)