From e2df1d71d5ec39f89c540f116c1cb0b765a74229 Mon Sep 17 00:00:00 2001
From: hackykid <hackykid@openttd.org>
Date: Tue, 21 Jun 2005 14:50:08 +0000
Subject: (svn r2467)  - Fix: [newgrf] Prevent trains with shorter wagons
 breaking apart when reversing in some cases. (Therax)

---
 train_cmd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/train_cmd.c b/train_cmd.c
index 414c34b43..9b5192e61 100644
--- a/train_cmd.c
+++ b/train_cmd.c
@@ -2643,7 +2643,7 @@ static void *CheckVehicleAtSignal(Vehicle *v, void *data)
 
 static void TrainController(Vehicle *v)
 {
-	Vehicle *prev = NULL;
+	Vehicle *prev;
 	GetNewVehiclePosResult gp;
 	uint32 r, tracks,ts;
 	int i, enterdir, newdir, dir;
@@ -2652,7 +2652,7 @@ static void TrainController(Vehicle *v)
 	byte old_z;
 
 	/* For every vehicle after and including the given vehicle */
-	for (; v != NULL; prev = v, v = v->next) {
+	for (prev = GetPrevVehicleInChain(v); v != NULL; prev = v, v = v->next) {
 		BeginVehicleMove(v);
 
 		if (v->u.rail.track != 0x40) {
-- 
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