save project

snake.py

@@ -13,9 +13,17 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.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')
 seatheading = "right"
 x,y=240,120
-position = [(180,90),(180,120),(210,210),(x,y)]
+position = [(180,90),(180,120),(210,120),(x,y)]
+apple_x = 360
+apple_y = 300
+
+setheading = "right"
+snake_head = right
 
 while True:
     for event in pygame.event.get():
@@ -25,12 +33,16 @@ while True:
         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 != "dwon":
                 setheading = 'up'
+                snake_head = up
             if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
+                snake_head = down
 
     if seatheading == "right":
         x += 30
@@ -42,11 +54,15 @@ while True:
         y += 30
 
     position.append((x,y))
+    
+    if x == apple_x and y == apple_y:
+        apple_x = random.randint(0,660)
+        apple_y = random.randint(0,480)
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 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
     for i in range(len(position)-1):
         screen.blit(body,position[i])
@@ -54,7 +70,7 @@ while True:
     #screen.blit(body, (180, 120))
     #screen.blit(body, (180, 90))
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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