Function GetPreviewRunningCostString

src/engine_gui.cpp:173–176

* Get preview running cost string for an engine. * @param e Engine. * @returns Formatted string of running cost. */

 * @returns Formatted string of running cost.
 */
static std::string GetPreviewRunningCostString(const Engine &e)
{
	return GetString(TimerGameEconomy::UsingWallclockUnits() ? STR_ENGINE_PREVIEW_RUNCOST_PERIOD : STR_ENGINE_PREVIEW_RUNCOST_YEAR, e.GetRunningCost());
}

static std::string GetTrainEngineInfoString(const Engine &e)
{