save project

snake.py

@@ -10,23 +10,59 @@ 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')
+sanke_head = right
+heading = "right"
+head_x = 240 
+head_y = 120
+FPS = pygame.time.Clock()
+position = [(180,90),(180,120),(210,120),(head_x,head_y)]
 
 
 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()
+        if event.type == pygame.KEYDOWN:
+            if event.key == pygame.K_RIGHT and heading !="left":
+                heading = "right"
+                sanke_head = right
+            if event.key == pygame.K_LEFT and heading !="right":
+                heading = "left"
+                sanke_head = left
+            if event.key == pygame.K_UP and heading !="down":
+                heading = "up"
+                sanke_head = up
+            if event.key == pygame.K_DOWN and heading !="up":
+                heading = "down"
+                sanke_head = down
+
     # 将背景图画上去
     # 将背景图画上去
-    screen.blit(background, (0, 0))
+    if heading == "right":
+        head_x += 30
+    if heading == "left":
+        head_x -= 30
+    if heading == "up":
+        head_y -= 30
+    if heading == "down":
+        head_y += 30
+    position.append((head_x,head_y))
+    position.pop(0)
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
     # 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, (180, 120))
-    screen.blit(body, (180, 90))
+    screen.blit(background, (0, 0))
+    screen.blit(sanke_head,position[-1])
+    for index in range(len(position)-1):
+        screen.blit(body,position[index])
+
+   
+   
     # 将果实画上去
     # 将果实画上去
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
+    FPS.tick(5)
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
\ No newline at end of file