save project

snake.py

@@ -4,13 +4,17 @@ pygame.init()
 time=pygame.time.Clock()
 x=240
 y=120
+setheading='right'
 screen=pygame.display.set_mode((660,480))
 shenti=[(180,90),(180,120),(210,120),(x,y)]
 bg = pygame.image.load('bg.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.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')
+snake_head=right
 
 
 
@@ -18,12 +22,31 @@ 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_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
+    elif setheading=="left":
+        x-=30
+    elif setheading=="up":
+        y+=30    
+    else:
+        y-=30
     shenti.append((x,y)) 
     shenti.pop(0)
-
     screen.blit(bg,(0,0))
-    screen.blit(right,shenti[-1])
+    screen.blit(snake_head,shenti[-1])
     for i in range(len(shenti)-1):
         screen.blit(body,shenti[i])
     screen.blit(food,(360,300))