save project

snake.py

@@ -7,20 +7,47 @@ 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')
+up = pygame.image.load('up.png')
+left = pygame.image.load('left.png')
+down = pygame.image.load('down.png')
 # 创建一个窗口
 # 创建一个窗口
 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
 screen=pygame.display.set_mode((660,480))
 screen=pygame.display.set_mode((660,480))
 FPSCLOCK=pygame.time.Clock()
 FPSCLOCK=pygame.time.Clock()
 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:
             exit()
             exit()
-    x +=30
+        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
+        
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)
     screen.blit(background, (0,0))
     screen.blit(background, (0,0))
-    screen.blit(right,position[-1])
+    screen.blit(snake_head,position[-1])
     for i in range(len(position)-1):
     for i in range(len(position)-1):
         screen.blit(body,position[i])
         screen.blit(body,position[i])
     #screen.blit(right,(x,y))
     #screen.blit(right,(x,y))