save project

snake.py

@@ -11,47 +11,53 @@ FPS=pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
-down = pygame.image.load('down.png')
-left = pygame.image.load('left.png')
-up = pygame.image.load('up.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')
-startfx='right'
-snakehead=right
-x,y=240,120
+
+y=180
+x=240
 shechang=[(210,120),(180,120),(180,90),(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()
-        if event.type == locals.KEYDOWN:
-            if event.type == locals.K_RIGHT and startfx != 'left':
-                startfx='right'
-                snakehead=right
-            if event.type == locals.K_LEFT and startfx != 'right':
-                startfx='left'
-                snakehead=left
-            if event.type == locals.K_DOWN and startfx != 'up':
-                startfx='down'
-                snakehead=down
-            if event.type == locals.K_UP and startfx != 'down':
-                startfx='up'
-                snakehead=up
-    if startfx=='right':
-        x+=30
-    elif startfx=='left':
-        x-=30
-    elif startfx=='up':
-        y-=30
-    else:
-        y+=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_DOWN and setheading !='up':
+                setheading='down'
+                snake_head=down
+            if event.key==locals.K_UP and setheading !='down':
+                setheading='up'
+                snake_head=up
+    if setheading=='right':
+        x +=30
+    if setheading=='left':
+        x -=30
+    if setheading=='up':
+        y -=30
+    if setheading=='down':
+        y +=30
+
+
+
+
     shechang.append((x,y))
     shechang.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(snakehead, shechang[-1])
+    screen.blit(snake_head, (shechang[-1]))
     # 将贪吃蛇的身体画上去
     for i in range(len(shechang)-1):
         screen.blit(body,shechang[i])
@@ -61,6 +67,5 @@ while True:
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    FPS.tick(3)
     pygame.display.update()
-    
\ No newline at end of file
+    FPS.tick(5)
\ No newline at end of file