From e557c88667206f9db5c8ed5958d2ca0279aefa87 Mon Sep 17 00:00:00 2001 From: rubidium Date: Sun, 4 Jan 2009 15:53:43 +0000 Subject: (svn r14830) -Fix [FS#2495]: overflow of number of orders per vehicle (based on patch by Swallow) --- src/order_cmd.cpp | 1 + src/order_type.h | 8 +++++--- 2 files changed, 6 insertions(+), 3 deletions(-) (limited to 'src') diff --git a/src/order_cmd.cpp b/src/order_cmd.cpp index 4686a564d..a14468b07 100644 --- a/src/order_cmd.cpp +++ b/src/order_cmd.cpp @@ -567,6 +567,7 @@ CommandCost CmdInsertOrder(TileIndex tile, uint32 flags, uint32 p1, uint32 p2, c if (sel_ord > v->GetNumOrders()) return CMD_ERROR; + if (v->GetNumOrders() >= MAX_VEH_ORDER_ID) return_cmd_error(STR_8832_TOO_MANY_ORDERS); if (!Order::CanAllocateItem()) return_cmd_error(STR_8831_NO_MORE_SPACE_FOR_ORDERS); if (v->orders.list == NULL && !OrderList::CanAllocateItem()) return_cmd_error(STR_8831_NO_MORE_SPACE_FOR_ORDERS); diff --git a/src/order_type.h b/src/order_type.h index 55653b825..0a43dc8f7 100644 --- a/src/order_type.h +++ b/src/order_type.h @@ -12,10 +12,12 @@ typedef uint16 OrderID; typedef uint16 OrderListID; typedef uint16 DestinationID; -enum { - INVALID_VEH_ORDER_ID = 0xFF, -}; +/** Invalid vehicle order index (sentinel) */ +static const VehicleOrderID INVALID_VEH_ORDER_ID = 0xFF; +/** Last valid VehicleOrderID. */ +static const VehicleOrderID MAX_VEH_ORDER_ID = INVALID_VEH_ORDER_ID - 1; +/** Invalid order (sentinel) */ static const OrderID INVALID_ORDER = 0xFFFF; /* Order types */ -- cgit v1.2.3-70-g09d2