From dc1fd2dbe685cb15e53fea2bc5d21e196dc301e4 Mon Sep 17 00:00:00 2001
From: yexo <yexo@openttd.org>
Date: Tue, 8 Nov 2011 15:00:55 +0000
Subject: [PATCH] (svn r23131) -Fix (r16165):
 AIOrder::IsCurrentOrderPartOfOrderList return false for valid vehicles and
 crashed for invalid ones

---
 src/ai/api/ai_order.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ai/api/ai_order.cpp b/src/ai/api/ai_order.cpp
index f02932ac2b..8757c7bebf 100644
--- a/src/ai/api/ai_order.cpp
+++ b/src/ai/api/ai_order.cpp
@@ -128,7 +128,7 @@ static const Order *ResolveOrder(VehicleID vehicle_id, AIOrder::OrderPosition or
 
 /* static */ bool AIOrder::IsCurrentOrderPartOfOrderList(VehicleID vehicle_id)
 {
-	if (AIVehicle::IsValidVehicle(vehicle_id)) return false;
+	if (!AIVehicle::IsValidVehicle(vehicle_id)) return false;
 	if (GetOrderCount(vehicle_id) == 0) return false;
 
 	const Order *order = &::Vehicle::Get(vehicle_id)->current_order;