From 29fb4ebc5ca42095e6abbb7814abe18aff27acf3 Mon Sep 17 00:00:00 2001
From: MadCamel <madcamel@gmail.com>
Date: Sun, 2 May 2010 14:19:23 -0400
Subject: ChangeDir packets are now rate limited

Breakdancing is fun. Spinbotting isn't..
---
 src/map/clif.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/map/clif.c b/src/map/clif.c
index da26b5d..217c374 100644
--- a/src/map/clif.c
+++ b/src/map/clif.c
@@ -9337,7 +9337,7 @@ func_table clif_parse_func_table[0x220] =
 	{ NULL,					0	},	// 98
 	{ clif_parse_GMmessage,			300	},	// 99
 	{ NULL,					0	},	// 9a
-	{ clif_parse_ChangeDir,			-1	},	// 9b .29 clients spam this packet when walking into a blocked tile
+	{ clif_parse_ChangeDir,			0	},	// 9b
 	{ NULL,					0	},	// 9c
 	{ NULL,					0	},	// 9d
 	{ NULL,					0	},	// 9e
@@ -9763,6 +9763,16 @@ int clif_check_packet_flood(fd, cmd)
             rate = 1000;
     }
 
+    // ChangeDir - only apply limit if not walking
+    if (cmd == 0x9b)
+    {
+        // .29 clients spam this packet when walking into a blocked tile
+        if (RFIFOB(fd, 4) == sd->dir || sd->walktimer != -1)
+            return 0;
+
+        rate = 500;
+    }
+
     // They are flooding
     if (tick < sd->flood_rates[cmd] + rate)
     {
-- 
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