Function GetIncompatibleRefitOrderIdForAutoreplace

src/autoreplace_cmd.cpp:205–220

* Gets the index of the first refit order that is incompatible with the requested engine type * @param v The vehicle to be replaced * @param engine_type The type we want to replace with * @return index of the incompatible order or -1 if none were found */

 * @return index of the incompatible order or -1 if none were found
 */
static int GetIncompatibleRefitOrderIdForAutoreplace(const Vehicle *v, EngineID engine_type)
{
	CargoTypes union_refit_mask = GetUnionOfArticulatedRefitMasks(engine_type, false);

	const Vehicle *u = (v->type == VEH_TRAIN) ? v->First() : v;

	const OrderList *orders = u->orders;
	if (orders == nullptr) return -1;
	for (VehicleOrderID i = 0; i < orders->GetNumOrders(); i++) {
		const Order *o = orders->GetOrderAt(i);
		if (!o->IsRefit()) continue;
		if (!HasBit(union_refit_mask, o->GetRefitCargo())) return i;
	}

	return -1;
}

/**
 * Function to find what type of cargo to refit to when autoreplacing