save project

snake.py

@@ -7,23 +7,48 @@ blackground=pygame.image.load('bg.png')
 body=pygame.image.load('body.png')
 right=pygame.image.load('right.png')
 food=pygame.image.load('apple.png')
+left=pygame.image.load('left.png')
+up=pygame.image.load('up.png')
+down=pygame.image.load('down.png')
 # 创建一个窗口
 screen=pygame.display.set_mode((660,480))
 times=pygame.time.Clock()
 
 x, y=240, 120
 position=[(180,90),(180,120),(210,120),(x,y)]
+setheading='right'
+snake_head=right
 
 
 while True:
     for event in pygame.event.get():
         if event.type ==locals.QUIT:
             exit()
-    x += 30
+        elif event.type ==locals.KEYDOWN:
+            if event.key ==locals.K_d and setheading !='left':
+                setheading='right'
+                snake_head=right
+            if event.key ==locals.K_a and setheading !='right':
+                setheading='left'
+                snake_head=left
+            if event.key ==locals.K_w and setheading !='down':
+                setheading='up'
+                snake_head=up
+            if event.key ==locals.K_s and setheading !='up':
+                setheading='down'
+                snake_head=down
+    if setheading == 'right':
+        x+=30
+    elif setheading == 'left':
+        x-=30
+    elif setheading == 'up':
+        y-=30
+    elif setheading == 'down':
+        y+=30
     position.append((x,y))
     position.pop(0)
     screen.blit(blackground,(0,0))
-    screen.blit(right,position[-1])
+    screen.blit(snake_head,position[-1])
     for i in range(len(position)-1):
         screen.blit(body,position[i])
     screen.blit(food,(270,240))