From 12db75f1b128946e38f634a44b467d61bf864584 Mon Sep 17 00:00:00 2001
From: kju <kju@invalid.invalid>
Date: Thu, 14 Jan 2010 01:06:10 +0000
Subject: [PATCH] snake new control: don't allow snake to go to opposite
 direction

---
 games/snake/snake_game.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/games/snake/snake_game.c b/games/snake/snake_game.c
index 6be7026..70bfb5a 100644
--- a/games/snake/snake_game.c
+++ b/games/snake/snake_game.c
@@ -62,6 +62,10 @@ void snake_game() {
 #ifdef GAME_SNAKE_NEWCONTROL			
 		if (joy_cmd != 0xff)
 		{
+			if ( (dir == left  && joy_cmd != right) ||
+			     (dir == right && joy_cmd != left)  ||
+			     (dir == up    && joy_cmd != down)  ||
+			     (dir == down  && joy_cmd != up)    )
 				dir = joy_cmd;
 		}
 #else