Method IsVariantHidden

src/engine.cpp:486–503

* Check whether the engine variant chain is hidden in the GUI for the given company. * @param c Company to check. * @return \c true iff the engine variant chain is hidden in the GUI for the given company. */

 * @return \c true iff the engine variant chain is hidden in the GUI for the given company.
 */
bool Engine::IsVariantHidden(CompanyID c) const
{
	/* In case company is spectator. */
	if (c >= MAX_COMPANIES) return false;

	/* Shortcut if this engine is explicitly hidden. */
	if (this->IsHidden(c)) return true;

	/* Check for hidden parent variants. This is a bit convoluted as we must check hidden status of
	 * the last display variant rather than the actual parent variant. */
	const Engine *re = this;
	const Engine *ve = re->GetDisplayVariant();
	while (!(ve->IsHidden(c)) && re->info.variant_id != EngineID::Invalid()) {
		re = Engine::Get(re->info.variant_id);
		ve = re->GetDisplayVariant();
	}
	return ve->IsHidden(c);
}

/**
 * Initializes the #EngineOverrideManager with the default engines.