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-rw-r--r--src/aircraft_cmd.cpp15
-rw-r--r--src/autoreplace_cmd.cpp5
-rw-r--r--src/company_cmd.cpp10
-rw-r--r--src/functions.h2
-rw-r--r--src/order_cmd.cpp103
-rw-r--r--src/road_cmd.cpp10
-rw-r--r--src/roadveh_cmd.cpp20
-rw-r--r--src/ship_cmd.cpp14
-rw-r--r--src/station_cmd.cpp53
-rw-r--r--src/timetable_cmd.cpp24
-rw-r--r--src/train_cmd.cpp39
-rw-r--r--src/tunnelbridge_cmd.cpp12
-rw-r--r--src/vehicle.cpp5
-rw-r--r--src/vehicle_cmd.cpp22
-rw-r--r--src/waypoint_cmd.cpp14
15 files changed, 268 insertions, 80 deletions
diff --git a/src/aircraft_cmd.cpp b/src/aircraft_cmd.cpp
index d53cdb900..52a011673 100644
--- a/src/aircraft_cmd.cpp
+++ b/src/aircraft_cmd.cpp
@@ -405,13 +405,17 @@ CommandCost CmdBuildAircraft(TileIndex tile, DoCommandFlag flags, uint32 p1, uin
CommandCost CmdSellAircraft(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Aircraft *v = Aircraft::GetIfValid(p1);
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
if (!v->IsStoppedInDepot()) return_cmd_error(STR_ERROR_AIRCRAFT_MUST_BE_STOPPED);
if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_SELL_DESTROYED_VEHICLE);
- CommandCost ret(EXPENSES_NEW_VEHICLES, -v->value);
+ ret = CommandCost(EXPENSES_NEW_VEHICLES, -v->value);
if (flags & DC_EXEC) {
delete v;
@@ -480,7 +484,12 @@ CommandCost CmdRefitAircraft(TileIndex tile, DoCommandFlag flags, uint32 p1, uin
byte new_subtype = GB(p2, 8, 8);
Aircraft *v = Aircraft::GetIfValid(p1);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+
if (!v->IsStoppedInDepot()) return_cmd_error(STR_ERROR_AIRCRAFT_MUST_BE_STOPPED);
if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_REFIT_DESTROYED_VEHICLE);
diff --git a/src/autoreplace_cmd.cpp b/src/autoreplace_cmd.cpp
index 26a92e519..bce3f1ea5 100644
--- a/src/autoreplace_cmd.cpp
+++ b/src/autoreplace_cmd.cpp
@@ -628,7 +628,10 @@ CommandCost CmdAutoreplaceVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1
Vehicle *v = Vehicle::GetIfValid(p1);
if (v == NULL) return CMD_ERROR;
- if (!CheckOwnership(v->owner)) return CMD_ERROR;
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+
if (!v->IsInDepot()) return CMD_ERROR;
if (v->vehstatus & VS_CRASHED) return CMD_ERROR;
diff --git a/src/company_cmd.cpp b/src/company_cmd.cpp
index e1b3e34f5..39a889e5e 100644
--- a/src/company_cmd.cpp
+++ b/src/company_cmd.cpp
@@ -248,17 +248,17 @@ void GetNameOfOwner(Owner owner, TileIndex tile)
* @param owner the owner of the thing to check.
* @param tile optional tile to get the right town.
* @pre if tile == 0 then the owner can't be OWNER_TOWN.
- * @return true iff it's owned by the current company.
+ * @return A succeeded command iff it's owned by the current company, else a failed command.
*/
-bool CheckOwnership(Owner owner, TileIndex tile)
+CommandCost CheckOwnership(Owner owner, TileIndex tile)
{
assert(owner < OWNER_END);
assert(owner != OWNER_TOWN || tile != 0);
- if (owner == _current_company) return true;
- _error_message = STR_ERROR_OWNED_BY;
+ if (owner == _current_company) return CommandCost();
+
GetNameOfOwner(owner, tile);
- return false;
+ return_cmd_error(STR_ERROR_OWNED_BY);
}
/**
diff --git a/src/functions.h b/src/functions.h
index 6acbb9af7..a6743b2ac 100644
--- a/src/functions.h
+++ b/src/functions.h
@@ -24,7 +24,7 @@ void TileLoopClearHelper(TileIndex tile);
bool CheckCompanyHasMoney(CommandCost &cost);
void SubtractMoneyFromCompany(CommandCost cost);
void SubtractMoneyFromCompanyFract(CompanyID company, CommandCost cost);
-bool CheckOwnership(Owner owner, TileIndex tile = 0);
+CommandCost CheckOwnership(Owner owner, TileIndex tile = 0);
CommandCost CheckTileOwnership(TileIndex tile);
/* misc functions */
diff --git a/src/order_cmd.cpp b/src/order_cmd.cpp
index e1985893e..bd84015d2 100644
--- a/src/order_cmd.cpp
+++ b/src/order_cmd.cpp
@@ -468,7 +468,11 @@ CommandCost CmdInsertOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
Order new_order(p2);
Vehicle *v = Vehicle::GetIfValid(veh);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
/* Check if the inserted order is to the correct destination (owner, type),
* and has the correct flags if any */
@@ -477,7 +481,11 @@ CommandCost CmdInsertOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
const Station *st = Station::GetIfValid(new_order.GetDestination());
if (st == NULL) return CMD_ERROR;
- if (st->owner != OWNER_NONE && !CheckOwnership(st->owner)) return CMD_ERROR;
+ if (st->owner != OWNER_NONE) {
+ CommandCost ret = CheckOwnership(st->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+ }
if (!CanVehicleUseStation(v, st)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
for (Vehicle *u = v->FirstShared(); u != NULL; u = u->NextShared()) {
@@ -521,15 +529,23 @@ CommandCost CmdInsertOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
if (v->type == VEH_AIRCRAFT) {
const Station *st = Station::GetIfValid(new_order.GetDestination());
- if (st == NULL || !CheckOwnership(st->owner) ||
- !CanVehicleUseStation(v, st) ||
- st->GetAirportSpec()->nof_depots == 0) {
+ if (st == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(st->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+
+ if (!CanVehicleUseStation(v, st) || st->GetAirportSpec()->nof_depots == 0) {
return CMD_ERROR;
}
} else {
const Depot *dp = Depot::GetIfValid(new_order.GetDestination());
- if (dp == NULL || !CheckOwnership(GetTileOwner(dp->xy))) return CMD_ERROR;
+ if (dp == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(GetTileOwner(dp->xy));
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
switch (v->type) {
case VEH_TRAIN:
@@ -565,14 +581,22 @@ CommandCost CmdInsertOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
switch (v->type) {
default: return CMD_ERROR;
- case VEH_TRAIN:
+ case VEH_TRAIN: {
if (!(wp->facilities & FACIL_TRAIN)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
- if (!CheckOwnership(wp->owner)) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(wp->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
break;
+ }
case VEH_SHIP:
if (!(wp->facilities & FACIL_DOCK)) return_cmd_error(STR_ERROR_CAN_T_ADD_ORDER);
- if (!CheckOwnership(wp->owner) && wp->owner != OWNER_NONE) return CMD_ERROR;
+ if (wp->owner != OWNER_NONE) {
+ CommandCost ret = CheckOwnership(wp->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+ }
break;
}
@@ -729,7 +753,11 @@ CommandCost CmdDeleteOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
Vehicle *v = Vehicle::GetIfValid(veh_id);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
/* If we did not select an order, we maybe want to de-clone the orders */
if (sel_ord >= v->GetNumOrders())
@@ -795,10 +823,11 @@ CommandCost CmdSkipToOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
Vehicle *v = Vehicle::GetIfValid(veh_id);
- if (v == NULL || !CheckOwnership(v->owner) || sel_ord == v->cur_order_index ||
- sel_ord >= v->GetNumOrders() || v->GetNumOrders() < 2) {
- return CMD_ERROR;
- }
+ if (v == NULL || sel_ord == v->cur_order_index || sel_ord >= v->GetNumOrders() || v->GetNumOrders() < 2) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
if (flags & DC_EXEC) {
v->cur_order_index = sel_ord;
@@ -835,7 +864,11 @@ CommandCost CmdMoveOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
VehicleOrderID target_order = GB(p2, 16, 16);
Vehicle *v = Vehicle::GetIfValid(veh);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
/* Don't make senseless movements */
if (moving_order >= v->GetNumOrders() || target_order >= v->GetNumOrders() ||
@@ -916,7 +949,11 @@ CommandCost CmdModifyOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
if (mof >= MOF_END) return CMD_ERROR;
Vehicle *v = Vehicle::GetIfValid(veh);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
/* Is it a valid order? */
if (sel_ord >= v->GetNumOrders()) return CMD_ERROR;
@@ -1139,17 +1176,22 @@ CommandCost CmdCloneOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
VehicleID veh_dst = GB(p1, 0, 16);
Vehicle *dst = Vehicle::GetIfValid(veh_dst);
+ if (dst == NULL) return CMD_ERROR;
- if (dst == NULL || !CheckOwnership(dst->owner)) return CMD_ERROR;
+ CommandCost ret = CheckOwnership(dst->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
switch (p2) {
case CO_SHARE: {
Vehicle *src = Vehicle::GetIfValid(veh_src);
/* Sanity checks */
- if (src == NULL || !CheckOwnership(src->owner) || dst->type != src->type || dst == src) {
- return CMD_ERROR;
- }
+ if (src == NULL || dst->type != src->type || dst == src) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(src->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
/* Trucks can't share orders with busses (and visa versa) */
if (src->type == VEH_ROAD && RoadVehicle::From(src)->IsBus() != RoadVehicle::From(dst)->IsBus()) {
@@ -1188,9 +1230,11 @@ CommandCost CmdCloneOrder(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
Vehicle *src = Vehicle::GetIfValid(veh_src);
/* Sanity checks */
- if (src == NULL || !CheckOwnership(src->owner) || dst->type != src->type || dst == src) {
- return CMD_ERROR;
- }
+ if (src == NULL || dst->type != src->type || dst == src) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(src->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
/* Trucks can't copy all the orders from busses (and visa versa),
* and neither can helicopters and aircarft. */
@@ -1264,7 +1308,11 @@ CommandCost CmdOrderRefit(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
byte subtype = GB(p2, 8, 8);
const Vehicle *v = Vehicle::GetIfValid(veh);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
Order *order = v->GetOrder(order_number);
if (order == NULL) return CMD_ERROR;
@@ -1416,7 +1464,12 @@ CommandCost CmdRestoreOrderIndex(TileIndex tile, DoCommandFlag flags, uint32 p1,
Vehicle *v = Vehicle::GetIfValid(p1);
/* Check the vehicle type and ownership, and if the service interval and order are in range */
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+
if (serv_int != GetServiceIntervalClamped(serv_int, v->owner) || cur_ord >= v->GetNumOrders()) return CMD_ERROR;
if (flags & DC_EXEC) {
diff --git a/src/road_cmd.cpp b/src/road_cmd.cpp
index b58c552f8..c7940cf7f 100644
--- a/src/road_cmd.cpp
+++ b/src/road_cmd.cpp
@@ -131,7 +131,9 @@ CommandCost CheckAllowRemoveRoad(TileIndex tile, RoadBits remove, Owner owner, R
* by a town */
if (owner != OWNER_TOWN) {
if (owner == OWNER_NONE) return CommandCost();
- return CheckOwnership(owner) ? CommandCost() : CMD_ERROR;
+ CommandCost ret = CheckOwnership(owner);
+ ret.SetGlobalErrorMessage();
+ return ret;
}
if (!town_check) return CommandCost();
@@ -502,7 +504,11 @@ CommandCost CmdBuildRoad(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
if (crossing) return_cmd_error(STR_ERROR_ONEWAY_ROADS_CAN_T_HAVE_JUNCTION);
Owner owner = GetRoadOwner(tile, ROADTYPE_ROAD);
- if (owner != OWNER_NONE && !CheckOwnership(owner, tile)) return CMD_ERROR;
+ if (owner != OWNER_NONE) {
+ CommandCost ret = CheckOwnership(owner, tile);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+ }
CommandCost ret = EnsureNoVehicleOnGround(tile);
ret.SetGlobalErrorMessage();
diff --git a/src/roadveh_cmd.cpp b/src/roadveh_cmd.cpp
index 6f54f2ae9..e82bcfcfc 100644
--- a/src/roadveh_cmd.cpp
+++ b/src/roadveh_cmd.cpp
@@ -331,7 +331,11 @@ bool RoadVehicle::IsStoppedInDepot() const
CommandCost CmdSellRoadVeh(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
RoadVehicle *v = RoadVehicle::GetIfValid(p1);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_SELL_DESTROYED_VEHICLE);
@@ -339,7 +343,7 @@ CommandCost CmdSellRoadVeh(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
return_cmd_error(STR_ERROR_ROAD_VEHICLE_MUST_BE_STOPPED_INSIDE_DEPOT);
}
- CommandCost ret(EXPENSES_NEW_VEHICLES, -v->value);
+ ret = CommandCost(EXPENSES_NEW_VEHICLES, -v->value);
if (flags & DC_EXEC) {
delete v;
@@ -406,7 +410,11 @@ CommandCost CmdSendRoadVehToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1
CommandCost CmdTurnRoadVeh(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
RoadVehicle *v = RoadVehicle::GetIfValid(p1);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
if ((v->vehstatus & VS_STOPPED) ||
(v->vehstatus & VS_CRASHED) ||
@@ -1748,8 +1756,12 @@ CommandCost CmdRefitRoadVeh(TileIndex tile, DoCommandFlag flags, uint32 p1, uint
bool only_this = HasBit(p2, 16);
RoadVehicle *v = RoadVehicle::GetIfValid(p1);
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
if (!v->IsStoppedInDepot()) return_cmd_error(STR_ERROR_ROAD_VEHICLE_MUST_BE_STOPPED_INSIDE_DEPOT);
if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_REFIT_DESTROYED_VEHICLE);
diff --git a/src/ship_cmd.cpp b/src/ship_cmd.cpp
index ec907d2d7..6b5cb91f8 100644
--- a/src/ship_cmd.cpp
+++ b/src/ship_cmd.cpp
@@ -709,7 +709,11 @@ CommandCost CmdBuildShip(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
CommandCost CmdSellShip(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Ship *v = Ship::GetIfValid(p1);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_SELL_DESTROYED_VEHICLE);
@@ -717,7 +721,7 @@ CommandCost CmdSellShip(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p
return_cmd_error(STR_ERROR_SHIP_MUST_BE_STOPPED_IN_DEPOT);
}
- CommandCost ret(EXPENSES_NEW_VEHICLES, -v->value);
+ ret = CommandCost(EXPENSES_NEW_VEHICLES, -v->value);
if (flags & DC_EXEC) {
delete v;
@@ -780,8 +784,12 @@ CommandCost CmdRefitShip(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
byte new_subtype = GB(p2, 8, 8);
Ship *v = Ship::GetIfValid(p1);
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
if (!v->IsStoppedInDepot()) return_cmd_error(STR_ERROR_SHIP_MUST_BE_STOPPED_IN_DEPOT);
if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_REFIT_DESTROYED_VEHICLE);
diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp
index 3747ae5e1..40efc314c 100644
--- a/src/station_cmd.cpp
+++ b/src/station_cmd.cpp
@@ -865,8 +865,10 @@ static CommandCost CheckFlatLandRoadStop(TileArea tile_area, DoCommandFlag flags
Owner road_owner = GetRoadOwner(cur_tile, ROADTYPE_ROAD);
if (road_owner == OWNER_TOWN) {
if (!_settings_game.construction.road_stop_on_town_road) return_cmd_error(STR_ERROR_DRIVE_THROUGH_ON_TOWN_ROAD);
- } else if (!_settings_game.construction.road_stop_on_competitor_road && road_owner != OWNER_NONE && !CheckOwnership(road_owner)) {
- return CMD_ERROR;
+ } else if (!_settings_game.construction.road_stop_on_competitor_road && road_owner != OWNER_NONE) {
+ CommandCost ret = CheckOwnership(road_owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
}
num_roadbits += CountBits(GetRoadBits(cur_tile, ROADTYPE_ROAD));
}
@@ -874,8 +876,10 @@ static CommandCost CheckFlatLandRoadStop(TileArea tile_area, DoCommandFlag flags
/* There is a tram, check if we can build road+tram stop over it. */
if (HasBit(cur_rts, ROADTYPE_TRAM)) {
Owner tram_owner = GetRoadOwner(cur_tile, ROADTYPE_TRAM);
- if (!_settings_game.construction.road_stop_on_competitor_road && tram_owner != OWNER_NONE && !CheckOwnership(tram_owner)) {
- return CMD_ERROR;
+ if (!_settings_game.construction.road_stop_on_competitor_road && tram_owner != OWNER_NONE) {
+ CommandCost ret = CheckOwnership(tram_owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
}
num_roadbits += CountBits(GetRoadBits(cur_tile, ROADTYPE_TRAM));
}
@@ -1383,7 +1387,14 @@ CommandCost RemoveFromRailBaseStation(TileArea ta, SmallVector<T *, 4> &affected
/* Check ownership of station */
T *st = T::GetByTile(tile);
if (st == NULL) continue;
- if (_current_company != OWNER_WATER && !CheckOwnership(st->owner)) continue;
+
+ if (_current_company != OWNER_WATER) {
+ CommandCost ret = CheckOwnership(st->owner);
+ if (ret.Failed()) {
+ ret.SetGlobalErrorMessage();
+ continue;
+ }
+ }
/* Do not allow removing from stations if non-uniform stations are not enabled
* The check must be here to give correct error message
@@ -1529,7 +1540,11 @@ template <class T>
CommandCost RemoveRailStation(T *st, DoCommandFlag flags)
{
/* Current company owns the station? */
- if (_current_company != OWNER_WATER && !CheckOwnership(st->owner)) return CMD_ERROR;
+ if (_current_company != OWNER_WATER) {
+ CommandCost ret = CheckOwnership(st->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+ }
/* determine width and height of platforms */
TileArea ta = st->train_station;
@@ -1829,8 +1844,10 @@ static CommandCost RemoveRoadStop(TileIndex tile, DoCommandFlag flags)
{
Station *st = Station::GetByTile(tile);
- if (_current_company != OWNER_WATER && !CheckOwnership(st->owner)) {
- return CMD_ERROR;
+ if (_current_company != OWNER_WATER) {
+ CommandCost ret = CheckOwnership(st->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
}
bool is_truck = IsTruckStop(tile);
@@ -2241,8 +2258,10 @@ static CommandCost RemoveAirport(TileIndex tile, DoCommandFlag flags)
{
Station *st = Station::GetByTile(tile);
- if (_current_company != OWNER_WATER && !CheckOwnership(st->owner)) {
- return CMD_ERROR;
+ if (_current_company != OWNER_WATER) {
+ CommandCost ret = CheckOwnership(st->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
}
tile = st->airport.tile;
@@ -2456,12 +2475,14 @@ CommandCost CmdBuildDock(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
static CommandCost RemoveDock(TileIndex tile, DoCommandFlag flags)
{
Station *st = Station::GetByTile(tile);
- if (!CheckOwnership(st->owner)) return CMD_ERROR;
+ CommandCost ret = CheckOwnership(st->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
TileIndex tile1 = st->dock_tile;
TileIndex tile2 = tile1 + TileOffsByDiagDir(GetDockDirection(tile1));
- CommandCost ret = EnsureNoVehicleOnGround(tile1);
+ ret = EnsureNoVehicleOnGround(tile1);
if (ret.Succeeded()) ret = EnsureNoVehicleOnGround(tile2);
ret.SetGlobalErrorMessage();
if (ret.Failed()) return ret;
@@ -3194,7 +3215,11 @@ static bool IsUniqueStationName(const char *name)
CommandCost CmdRenameStation(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Station *st = Station::GetIfValid(p1);
- if (st == NULL || !CheckOwnership(st->owner)) return CMD_ERROR;
+ if (st == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(st->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
bool reset = StrEmpty(text);
@@ -3441,7 +3466,7 @@ static bool CanRemoveRoadWithStop(TileIndex tile, DoCommandFlag flags)
if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
- if ((road_owner != OWNER_TOWN && !CheckOwnership(road_owner)) || !CheckOwnership(tram_owner)) return false;
+ if ((road_owner != OWNER_TOWN && CheckOwnership(road_owner).Failed()) || CheckOwnership(tram_owner).Failed()) return false;
return road_owner != OWNER_TOWN || CheckAllowRemoveRoad(tile, GetAnyRoadBits(tile, ROADTYPE_ROAD), OWNER_TOWN, ROADTYPE_ROAD, flags).Succeeded();
}
diff --git a/src/timetable_cmd.cpp b/src/timetable_cmd.cpp
index 548e3237e..80f8a39bc 100644
--- a/src/timetable_cmd.cpp
+++ b/src/timetable_cmd.cpp
@@ -68,7 +68,11 @@ CommandCost CmdChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, u
VehicleID veh = GB(p1, 0, 16);
Vehicle *v = Vehicle::GetIfValid(veh);
- if (v == NULL || !CheckOwnership(v->owner) || !v->IsPrimaryVehicle()) return CMD_ERROR;
+ if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
VehicleOrderID order_number = GB(p1, 16, 8);
Order *order = v->GetOrder(order_number);
@@ -128,7 +132,11 @@ CommandCost CmdSetVehicleOnTime(TileIndex tile, DoCommandFlag flags, uint32 p1,
VehicleID veh = GB(p1, 0, 16);
Vehicle *v = Vehicle::GetIfValid(veh);
- if (v == NULL || !CheckOwnership(v->owner) || !v->IsPrimaryVehicle()) return CMD_ERROR;
+ if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
if (flags & DC_EXEC) {
v->lateness_counter = 0;
@@ -150,7 +158,11 @@ CommandCost CmdSetTimetableStart(TileIndex tile, DoCommandFlag flags, uint32 p1,
if (!_settings_game.order.timetabling) return CMD_ERROR;
Vehicle *v = Vehicle::GetIfValid(GB(p1, 0, 16));
- if (v == NULL || !CheckOwnership(v->owner) || !v->IsPrimaryVehicle()) return CMD_ERROR;
+ if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
/* Don't let a timetable start more than 15 years into the future or 1 year in the past. */
Date start_date = (Date)p2;
@@ -190,7 +202,11 @@ CommandCost CmdAutofillTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1,
VehicleID veh = GB(p1, 0, 16);
Vehicle *v = Vehicle::GetIfValid(veh);
- if (v == NULL || !CheckOwnership(v->owner) || !v->IsPrimaryVehicle()) return CMD_ERROR;
+ if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
if (flags & DC_EXEC) {
if (HasBit(p2, 0)) {
diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp
index b4f9689c4..c3e19eb37 100644
--- a/src/train_cmd.cpp
+++ b/src/train_cmd.cpp
@@ -1169,7 +1169,11 @@ CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, u
bool move_chain = HasBit(p2, 0);
Train *src = Train::GetIfValid(s);
- if (src == NULL || !CheckOwnership(src->owner)) return CMD_ERROR;
+ if (src == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(src->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
/* Do not allow moving crashed vehicles inside the depot, it is likely to cause asserts later */
if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
@@ -1180,7 +1184,11 @@ CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, u
dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
} else {
dst = Train::GetIfValid(d);
- if (dst == NULL || !CheckOwnership(dst->owner)) return CMD_ERROR;
+ if (dst == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(dst->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
/* Do not allow appending to crashed vehicles, too */
if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
@@ -1342,7 +1350,11 @@ CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uin
Window *w = NULL;
Train *v = Train::GetIfValid(p1);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
/* Sell a chain of vehicles or not? */
bool sell_chain = HasBit(p2, 0);
@@ -1372,7 +1384,7 @@ CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uin
ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
/* We don't need to validate the second train; it's going to be sold. */
- CommandCost ret = ValidateTrains(NULL, NULL, first, new_head);
+ ret = ValidateTrains(NULL, NULL, first, new_head);
if (ret.Failed()) {
/* Restore the train we had. */
RestoreTrainBackup(original);
@@ -1815,7 +1827,11 @@ static void ReverseTrainDirection(Train *v)
CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Train *v = Train::GetIfValid(p1);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
if (p2 != 0) {
/* turn a single unit around */
@@ -1882,7 +1898,12 @@ CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32
CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Train *t = Train::GetIfValid(p1);
- if (t == NULL || !CheckOwnership(t->owner)) return CMD_ERROR;
+ if (t == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(t->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+
if (flags & DC_EXEC) {
/* If we are forced to proceed, cancel that order.
@@ -1915,7 +1936,11 @@ CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1,
bool only_this = HasBit(p2, 16);
Train *v = Train::GetIfValid(p1);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
if (!v->IsStoppedInDepot()) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_REFIT_DESTROYED_VEHICLE);
diff --git a/src/tunnelbridge_cmd.cpp b/src/tunnelbridge_cmd.cpp
index 654a5db3e..5bf567eda 100644
--- a/src/tunnelbridge_cmd.cpp
+++ b/src/tunnelbridge_cmd.cpp
@@ -613,12 +613,18 @@ static inline CommandCost CheckAllowRemoveTunnelBridge(TileIndex tile)
if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
if (tram_owner == OWNER_NONE) tram_owner = _current_company;
- return (CheckOwnership(road_owner, tile) && CheckOwnership(tram_owner, tile)) ? CommandCost() : CMD_ERROR;
+ CommandCost ret = CheckOwnership(road_owner, tile);
+ if (ret.Succeeded()) ret = CheckOwnership(tram_owner, tile);
+ ret.SetGlobalErrorMessage();
+ return ret;
}
case TRANSPORT_RAIL:
- case TRANSPORT_WATER:
- return CheckOwnership(GetTileOwner(tile)) ? CommandCost() : CMD_ERROR;
+ case TRANSPORT_WATER: {
+ CommandCost ret = CheckOwnership(GetTileOwner(tile));
+ ret.SetGlobalErrorMessage();
+ return ret;
+ }
default: NOT_REACHED();
}
diff --git a/src/vehicle.cpp b/src/vehicle.cpp
index 44e3991ff..0797ee131 100644
--- a/src/vehicle.cpp
+++ b/src/vehicle.cpp
@@ -1665,7 +1665,10 @@ void Vehicle::HandleLoading(bool mode)
CommandCost Vehicle::SendToDepot(DoCommandFlag flags, DepotCommand command)
{
- if (!CheckOwnership(this->owner)) return CMD_ERROR;
+ CommandCost ret = CheckOwnership(this->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+
if (this->vehstatus & VS_CRASHED) return CMD_ERROR;
if (this->IsStoppedInDepot()) return CMD_ERROR;
diff --git a/src/vehicle_cmd.cpp b/src/vehicle_cmd.cpp
index f4527696b..0f96e4615 100644
--- a/src/vehicle_cmd.cpp
+++ b/src/vehicle_cmd.cpp
@@ -74,7 +74,11 @@ CommandCost CmdStartStopVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1,
if ((flags & DC_AUTOREPLACE) == 0) SetBit(p2, 0);
Vehicle *v = Vehicle::GetIfValid(p1);
- if (v == NULL || !CheckOwnership(v->owner) || !v->IsPrimaryVehicle()) return CMD_ERROR;
+ if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
switch (v->type) {
case VEH_TRAIN:
@@ -406,7 +410,9 @@ CommandCost CmdCloneVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint
* w_rear is the rear end of the cloned train. It's used to add more cars and is only used by trains
*/
- if (!CheckOwnership(v->owner)) return CMD_ERROR;
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
if (v->type == VEH_TRAIN && (!Train::From(v)->IsFrontEngine() || Train::From(v)->crash_anim_pos >= 4400)) return CMD_ERROR;
@@ -607,7 +613,11 @@ CommandCost SendAllVehiclesToDepot(VehicleType type, DoCommandFlag flags, bool s
CommandCost CmdRenameVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Vehicle *v = Vehicle::GetIfValid(p1);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
bool reset = StrEmpty(text);
@@ -638,7 +648,11 @@ CommandCost CmdRenameVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uin
CommandCost CmdChangeServiceInt(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Vehicle *v = Vehicle::GetIfValid(p1);
- if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
+ if (v == NULL) return CMD_ERROR;
+
+ CommandCost ret = CheckOwnership(v->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
uint16 serv_int = GetServiceIntervalClamped(p2, v->owner); // Double check the service interval from the user-input
if (serv_int != p2) return CMD_ERROR;
diff --git a/src/waypoint_cmd.cpp b/src/waypoint_cmd.cpp
index 04db4fc93..f9f0b4362 100644
--- a/src/waypoint_cmd.cpp
+++ b/src/waypoint_cmd.cpp
@@ -178,9 +178,11 @@ static CommandCost IsValidTileForWaypoint(TileIndex tile, Axis axis, StationID *
if (GetAxisForNewWaypoint(tile) != axis) return_cmd_error(STR_ERROR_NO_SUITABLE_RAILROAD_TRACK);
Owner owner = GetTileOwner(tile);
- if (!CheckOwnership(owner)) return CMD_ERROR;
+ CommandCost ret = CheckOwnership(owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
- CommandCost ret = EnsureNoVehicleOnGround(tile);
+ ret = EnsureNoVehicleOnGround(tile);
ret.SetGlobalErrorMessage();
if (ret.Failed()) return ret;
@@ -445,7 +447,13 @@ static bool IsUniqueWaypointName(const char *name)
CommandCost CmdRenameWaypoint(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Waypoint *wp = Waypoint::GetIfValid(p1);
- if (wp == NULL || !(CheckOwnership(wp->owner) || wp->owner == OWNER_NONE)) return CMD_ERROR;
+ if (wp == NULL) return CMD_ERROR;
+
+ if (wp->owner != OWNER_NONE) {
+ CommandCost ret = CheckOwnership(wp->owner);
+ ret.SetGlobalErrorMessage();
+ if (ret.Failed()) return ret;
+ }
bool reset = StrEmpty(text);
generated by cgit v1.2.3-54-g00ecf (git 2.44.0) at 2024-07-07 06:15:14 +0000