Function CmdSetVehicleVisibility

src/engine.cpp:1018–1030

* Set the visibility of an engine. * @param flags Operation to perform. * @param engine_id Engine id.. * @param hide Set for hidden, unset for visible. * @return The cost of this operation or an error. */

 * @return The cost of this operation or an error.
 */
CommandCost CmdSetVehicleVisibility(DoCommandFlags flags, EngineID engine_id, bool hide)
{
	Engine *e = Engine::GetIfValid(engine_id);
	if (e == nullptr || _current_company >= MAX_COMPANIES) return CMD_ERROR;
	if (!IsEngineBuildable(e->index, e->type, _current_company)) return CMD_ERROR;

	if (flags.Test(DoCommandFlag::Execute)) {
		e->company_hidden.Set(_current_company, hide);
		AddRemoveEngineFromAutoreplaceAndBuildWindows(e->type);
	}

	return CommandCost();
}

/**
 * Accept an engine prototype. XXX - it is possible that the top-company