save project

tcs.py

@@ -4,20 +4,45 @@ pygame.init()
 screen=pygame.display.set_mode((660,480))
 background=pygame.image.load('bg.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')
 body=pygame.image.load('body.png')
 food=pygame.image.load('apple.png')
 t=pygame.time.Clock()
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
+setheading='right'
+snakehead=right
 while True:
     for event in pygame.event.get():
         if event.type==locals.QUIT:
             exit()
-    x+=30
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading!='left':
+                setheading='right'
+                snakehead=right
+            if event.key==locals.K_LEFT and setheading!='right':
+                setheading='left'
+                snakehead=left
+            if event.key==locals.K_UP and setheading!='down':
+                setheading='up'
+                snakehead=up
+            if event.key==locals.K_DOWN and setheading!='up':
+                setheading='down'
+                snakehead=down
+    if setheading=='right':
+        x+=30
+    elif setheading=='left':
+        x-=30
+    elif setheading=='up':
+        y-=30
+    else:
+        y+=30
     screen.blit(background,(0,0))
     position.append((x,y))
     position.pop(0)
-    screen.blit(right,position[-1])
+    screen.blit(snakehead,position[-1])
     for i in range(len(position)-1):
         screen.blit(body,position[i])
     screen.blit(food,(330,360))