Function CmdEngineCtrl

src/engine.cpp:1057–1072

* Allow or forbid a specific company to use an engine * @param flags operation to perform * @param engine_id engine id * @param company_id Company to allow/forbid the use of an engine. * @param allow false to forbid, true to allow. * @return the cost of this operation or an error */

 * @return the cost of this operation or an error
 */
CommandCost CmdEngineCtrl(DoCommandFlags flags, EngineID engine_id, CompanyID company_id, bool allow)
{
	if (_current_company != OWNER_DEITY) return CMD_ERROR;

	if (!Engine::IsValidID(engine_id) || !Company::IsValidID(company_id)) return CMD_ERROR;

	if (flags.Test(DoCommandFlag::Execute)) {
		if (allow) {
			EnableEngineForCompany(engine_id, company_id);
		} else {
			DisableEngineForCompany(engine_id, company_id);
		}
	}

	return CommandCost();
}

/**
 * An engine has become available for general use.