diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/engine.cpp | 70 | ||||
| -rw-r--r-- | src/engine_base.h | 18 |
2 files changed, 31 insertions, 57 deletions
diff --git a/src/engine.cpp b/src/engine.cpp index 96654b63b..55930083c 100644 --- a/src/engine.cpp +++ b/src/engine.cpp @@ -200,27 +200,28 @@ bool Engine::CanCarryCargo() const /** * Determines capacity of a given vehicle from scratch. * For aircraft the main capacity is determined. Mail might be present as well. - * @note Keep this function consistent with Engine::GetDisplayDefaultCapacity(). - * @param v Vehicle of interest + * @param v Vehicle of interest; NULL in purchase list * @param mail_capacity returns secondary cargo (mail) capacity of aircraft * @return Capacity */ uint Engine::DetermineCapacity(const Vehicle *v, uint16 *mail_capacity) const { - assert(this->index == v->engine_type); + assert(v == NULL || this->index == v->engine_type); if (mail_capacity != NULL) *mail_capacity = 0; if (!this->CanCarryCargo()) return 0; - if (mail_capacity != NULL && this->type == VEH_AIRCRAFT && IsCargoInClass(v->cargo_type, CC_PASSENGERS)) { + CargoID default_cargo = this->GetDefaultCargoType(); + CargoID cargo_type = (v != NULL) ? v->cargo_type : default_cargo; + + if (mail_capacity != NULL && this->type == VEH_AIRCRAFT && IsCargoInClass(cargo_type, CC_PASSENGERS)) { *mail_capacity = GetEngineProperty(this->index, PROP_AIRCRAFT_MAIL_CAPACITY, this->u.air.mail_capacity, v); } - CargoID default_cargo = this->GetDefaultCargoType(); /* Check the refit capacity callback if we are not in the default configuration. * Note: This might change to become more consistent/flexible/sane, esp. when default cargo is first refittable. */ if (HasBit(this->info.callback_mask, CBM_VEHICLE_REFIT_CAPACITY) && - (default_cargo != v->cargo_type || v->cargo_subtype != 0)) { + (default_cargo != cargo_type || (v != NULL && v->cargo_subtype != 0))) { uint16 callback = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, this->index, v); if (callback != CALLBACK_FAILED) return callback; } @@ -230,6 +231,9 @@ uint Engine::DetermineCapacity(const Vehicle *v, uint16 *mail_capacity) const switch (this->type) { case VEH_TRAIN: capacity = GetEngineProperty(this->index, PROP_TRAIN_CARGO_CAPACITY, this->u.rail.capacity, v); + + /* In purchase list add the capacity of the second head. Always use the plain property for this. */ + if (v == NULL && this->u.rail.railveh_type == RAILVEH_MULTIHEAD) capacity += this->u.rail.capacity; break; case VEH_ROAD: @@ -242,10 +246,10 @@ uint Engine::DetermineCapacity(const Vehicle *v, uint16 *mail_capacity) const case VEH_AIRCRAFT: capacity = GetEngineProperty(this->index, PROP_AIRCRAFT_PASSENGER_CAPACITY, this->u.air.passenger_capacity, v); - if (!IsCargoInClass(v->cargo_type, CC_PASSENGERS)) { + if (!IsCargoInClass(cargo_type, CC_PASSENGERS)) { capacity += GetEngineProperty(this->index, PROP_AIRCRAFT_MAIL_CAPACITY, this->u.air.mail_capacity, v); } - if (v->cargo_type == CT_MAIL) return capacity; + if (cargo_type == CT_MAIL) return capacity; default_cargo = CT_PASSENGERS; // Always use 'passengers' wrt. cargo multipliers break; @@ -254,14 +258,14 @@ uint Engine::DetermineCapacity(const Vehicle *v, uint16 *mail_capacity) const /* Apply multipliers depending on cargo- and vehicletype. * Note: This might change to become more consistent/flexible. */ - if (this->type != VEH_SHIP) { + if (this->type != VEH_SHIP && default_cargo != cargo_type) { switch (default_cargo) { case CT_PASSENGERS: break; case CT_MAIL: case CT_GOODS: capacity *= 2; break; default: capacity *= 4; break; } - switch (v->cargo_type) { + switch (cargo_type) { case CT_PASSENGERS: break; case CT_MAIL: case CT_GOODS: capacity /= 2; break; @@ -273,52 +277,6 @@ uint Engine::DetermineCapacity(const Vehicle *v, uint16 *mail_capacity) const } /** - * Determines the default cargo capacity of an engine for display purposes. - * - * For planes carrying both passenger and mail this is the passenger capacity. - * For multiheaded engines this is the capacity of both heads. - * For articulated engines use GetCapacityOfArticulatedParts - * - * @note Keep this function consistent with Engine::DetermineCapacity(). - * @param mail_capacity returns secondary cargo (mail) capacity of aircraft - * @return The default capacity - * @see GetDefaultCargoType - */ -uint Engine::GetDisplayDefaultCapacity(uint16 *mail_capacity) const -{ - if (mail_capacity != NULL) *mail_capacity = 0; - if (!this->CanCarryCargo()) return 0; - switch (type) { - case VEH_TRAIN: - return GetEngineProperty(this->index, PROP_TRAIN_CARGO_CAPACITY, this->u.rail.capacity) + (this->u.rail.railveh_type == RAILVEH_MULTIHEAD ? this->u.rail.capacity : 0); - - case VEH_ROAD: - return GetEngineProperty(this->index, PROP_ROADVEH_CARGO_CAPACITY, this->u.road.capacity); - - case VEH_SHIP: - return GetEngineProperty(this->index, PROP_SHIP_CARGO_CAPACITY, this->u.ship.capacity); - - case VEH_AIRCRAFT: { - uint capacity = GetEngineProperty(this->index, PROP_AIRCRAFT_PASSENGER_CAPACITY, this->u.air.passenger_capacity); - CargoID cargo = this->GetDefaultCargoType(); - if (IsCargoInClass(cargo, CC_PASSENGERS)) { - if (mail_capacity != NULL) *mail_capacity = GetEngineProperty(this->index, PROP_AIRCRAFT_MAIL_CAPACITY, this->u.air.mail_capacity); - } else { - capacity += GetEngineProperty(this->index, PROP_AIRCRAFT_MAIL_CAPACITY, this->u.air.mail_capacity); - } - switch (cargo) { - case CT_PASSENGERS: - case CT_MAIL: return capacity; - case CT_GOODS: return capacity / 2; - default: return capacity / 4; - } - } - - default: NOT_REACHED(); - } -} - -/** * Return how much the running costs of this engine are. * @return Yearly running cost of the engine. */ diff --git a/src/engine_base.h b/src/engine_base.h index 9a6930868..1c798ccf1 100644 --- a/src/engine_base.h +++ b/src/engine_base.h @@ -86,7 +86,23 @@ struct Engine : EnginePool::PoolItem<&_engine_pool> { uint DetermineCapacity(const Vehicle *v, uint16 *mail_capacity = NULL) const; bool CanCarryCargo() const; - uint GetDisplayDefaultCapacity(uint16 *mail_capacity = NULL) const; + + /** + * Determines the default cargo capacity of an engine for display purposes. + * + * For planes carrying both passenger and mail this is the passenger capacity. + * For multiheaded engines this is the capacity of both heads. + * For articulated engines use GetCapacityOfArticulatedParts + * + * @param mail_capacity returns secondary cargo (mail) capacity of aircraft + * @return The default capacity + * @see GetDefaultCargoType + */ + uint GetDisplayDefaultCapacity(uint16 *mail_capacity = NULL) const + { + return this->DetermineCapacity(NULL, mail_capacity); + } + Money GetRunningCost() const; Money GetCost() const; uint GetDisplayMaxSpeed() const; |