diff options
| -rw-r--r-- | vehicle.c | 6 |
1 files changed, 5 insertions, 1 deletions
@@ -1352,8 +1352,12 @@ int32 CmdReplaceVehicle(int x, int y, uint32 flags, uint32 p1, uint32 p2) if (!CheckOwnership(v->owner)) return CMD_ERROR; // makes sure that we do not replace a plane with a helicopter or vise versa - if (HASBIT(AircraftVehInfo(old_engine_type)->subtype, 0) != HASBIT(AircraftVehInfo(new_engine_type)->subtype, 0)) return CMD_ERROR; + if (v->type == VEH_Aircraft) { + if (HASBIT(AircraftVehInfo(old_engine_type)->subtype, 0) != HASBIT(AircraftVehInfo(new_engine_type)->subtype, 0)) return CMD_ERROR; + } + // makes sure that the player can actually buy the new engine. Renewing is still allowed to outdated engines + if (!HASBIT(DEREF_ENGINE(new_engine_type)->player_avail, v->owner) && old_engine_type != new_engine_type) return CMD_ERROR; switch (v->type) { case VEH_Train: build_cost = EstimateTrainCost(RailVehInfo(new_engine_type)); break; |