Method ResetToCurrentNewGRFConfig

src/engine.cpp:584–595

* Tries to reset the engine mapping to match the current NewGRF configuration. * This is only possible when there are currently no vehicles in the game. * @return false if resetting failed due to present vehicles. */

 * @return false if resetting failed due to present vehicles.
 */
bool EngineOverrideManager::ResetToCurrentNewGRFConfig()
{
	for (const Vehicle *v : Vehicle::Iterate()) {
		if (IsCompanyBuildableVehicleType(v)) return false;
	}

	/* Reset the engines, they will get new EngineIDs */
	_engine_mngr.ResetToDefaultMapping();
	ReloadNewGRFData();

	return true;
}

/**
 * Initialise the engine pool with the data from the original vehicles.