Method GetCost

src/engine.cpp:317–351

* Return how much a new engine costs. * @return Cost of the engine. */

 * @return Cost of the engine.
 */
Money Engine::GetCost() const
{
	Price base_price;
	uint cost_factor;
	switch (this->type) {
		case VEH_ROAD:
			base_price = PR_BUILD_VEHICLE_ROAD;
			cost_factor = GetEngineProperty(this->index, PROP_ROADVEH_COST_FACTOR, this->VehInfo<RoadVehicleInfo>().cost_factor);
			break;

		case VEH_TRAIN:
			if (this->VehInfo<RailVehicleInfo>().railveh_type == RAILVEH_WAGON) {
				base_price = PR_BUILD_VEHICLE_WAGON;
				cost_factor = GetEngineProperty(this->index, PROP_TRAIN_COST_FACTOR, this->VehInfo<RailVehicleInfo>().cost_factor);
			} else {
				base_price = PR_BUILD_VEHICLE_TRAIN;
				cost_factor = GetEngineProperty(this->index, PROP_TRAIN_COST_FACTOR, this->VehInfo<RailVehicleInfo>().cost_factor);
			}
			break;

		case VEH_SHIP:
			base_price = PR_BUILD_VEHICLE_SHIP;
			cost_factor = GetEngineProperty(this->index, PROP_SHIP_COST_FACTOR, this->VehInfo<ShipVehicleInfo>().cost_factor);
			break;

		case VEH_AIRCRAFT:
			base_price = PR_BUILD_VEHICLE_AIRCRAFT;
			cost_factor = GetEngineProperty(this->index, PROP_AIRCRAFT_COST_FACTOR, this->VehInfo<AircraftVehicleInfo>().cost_factor);
			break;

		default: NOT_REACHED();
	}

	return GetPrice(base_price, cost_factor, this->GetGRF(), -8);
}

/**
 * Returns max speed of the engine for display purposes