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Fix: Resolve cargo-types of default vehicles via their cargo label.

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Default vehicles now behave as if they had a cargo translation table. This fixes default vehicles carrying seemingly random cargos, if NewGRF industry sets are present.
This behavior is disabled, when a NewGRF touches any of the cargo-type or refitting properties. In that case it's up to the NewGRF to define its own cargo translation table.
This commit is contained in:
frosch
2021-04-30 17:35:32 +02:00
committed by frosch
parent a9ff296c3d
commit 9f8d0b1bee
3 changed files with 30 additions and 1 deletions
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8
src/newgrf.cpp
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@@ -8768,6 +8768,12 @@ static void CalculateRefitMasks()
EngineInfo *ei = &e->info;
bool only_defaultcargo; ///< Set if the vehicle shall carry only the default cargo
/* If the NewGRF did not set any cargo properties, we apply default cargo translation. */
if (_gted[engine].defaultcargo_grf == nullptr) {
/* Translate cargo_type using the original climate-specific cargo table. */
ei->cargo_type = GetDefaultCargoID(_settings_game.game_creation.landscape, static_cast<CargoType>(ei->cargo_type));
}
/* Did the newgrf specify any refitting? If not, use defaults. */
if (_gted[engine].refittability != GRFTempEngineData::UNSET) {
CargoTypes mask = 0;
@@ -8814,7 +8820,7 @@ static void CalculateRefitMasks()
}
/* Clear invalid cargoslots (from default vehicles or pre-NewCargo GRFs) */
if (!HasBit(_cargo_mask, ei->cargo_type)) ei->cargo_type = CT_INVALID;
if (ei->cargo_type != CT_INVALID && !HasBit(_cargo_mask, ei->cargo_type)) ei->cargo_type = CT_INVALID;
/* Ensure that the vehicle is either not refittable, or that the default cargo is one of the refittable cargoes.
* Note: Vehicles refittable to no cargo are handle differently to vehicle refittable to a single cargo. The latter might have subtypes. */