save project

snake.py

@@ -20,16 +20,16 @@ while True:
         if event.type == locals.QUIT:
             exit()
         if event.type == locals.KEYDOWN:
-            if event.key == locals.K_RIGHT:
+            if event.key == locals.K_RIGHT and setheading != "left":
                 setheading = 'right'
                 snake_head = right
-            if event.key == locals.K_LEFT:
+            if event.key == locals.K_LEFT and setheading != "right":
                 setheading = 'left'
                 snake_head = left
-            if event.key == locals.K_UP:
+            if event.key == locals.K_UP and setheading != "down":
                 setheading = 'up'
                 snake_head = up
-            if event.key == locals.K_LEFT:
+            if event.key == locals.K_down and setheading != "up":
                 setheading = 'down'
                 snake_head = down