C++ Planet::Invade方法代码示例

//.........这里部分代码省略.........

	long destAmt = dest->GetContain(ct);
	if (GetOwner() != dest->GetOwner() && (ct == POPULATION || !dest->CanLoadBy(GetOwner())))
		destAmt = 0;

	long amount = 0;	// actual amount moved;
	switch (tt) {
	case TRANSFER_LOADALL:
		// processing unloads, skip loads.
		break;

	case TRANSFER_DROPNLOAD:
	case TRANSFER_UNLOADALL:
		amount = TransferAmount(ct, this, dest, GetContain(ct));
		break;

	case TRANSFER_LOADAMT:
		// processing unloads, skip loads.
		break;

	case TRANSFER_UNLOADAMT:
		amount = TransferAmount(ct, this, dest, value);
		break;

	case TRANSFER_FILLPER:
	case TRANSFER_WAITPER:	// affects movement too
		// processing unloads, skip loads.
		break;

	case TRANSFER_LOADDUNN:
		// processing unloads, skip loads.
		break;

	case TRANSFER_SETTOPER:
		if (value > 100) {
			Message * mess = NCGetOwner()->AddMessage("Error: Transfer percent over 100%", this);
			mess->AddLong("Amount transferred", value);
			return;
		}
		value = GetCargoCapacity() * value / 100;
		// drop to a regualr transfer amount
	case TRANSFER_AMOUNTTO:
		if (GetContain(ct) > value)
			amount = TransferAmount(ct, this, dest, GetContain(ct) - value);
		break;

	case TRANSFER_DESTTO:
		// Allow set dest to for pop to do a maximal invade, followed by a setto load
		if (ct == POPULATION && GetOwner() != dest->GetOwner())
			amount = TransferAmount(ct, this, dest, GetContain(ct));
		else if (destAmt < value)
			amount = TransferAmount(ct, this, dest, value - destAmt);
		break;

	default:
		Message * mess = NCGetOwner()->AddMessage("Error: Invalid transfer order", this);
		mess->AddLong("Transfer code", tt);
		return;
	}

	if (amount > 0 && ct == POPULATION && GetOwner() != dest->GetOwner()) {
		// try to drop pop on an uninhabited world
		if (dest->GetOwner() == NULL) {
			Message * mess;
			mess = NCGetOwner()->AddMessage("Warning: Pop drop on unowned world", this);
			return;
		}

		// Dropping pop on a world with a base
		Planet * destP = dynamic_cast<Planet *>(dest);
		if (destP && destP->GetBaseNumber() >= 0) {
			Message * mess;
			mess = NCGetOwner()->AddMessage("Warning: Pop drop with base", this);
			mess->AddItem("", destP);
			return;
		}

		// unloading pop to some one elses fleet
		Fleet * destF = dynamic_cast<Fleet *>(dest);
		if (destF) {
			Message * mess;
			mess = NCGetOwner()->AddMessage("Warning: Transfer pop to unowned fleet", this);
			mess->AddItem("", destF);
			return;
		}

		if (GetOwner()->GroundAttackFactor() <= 0.01) {
			Message * mess;
			mess = NCGetOwner()->AddMessage("Warning: AR trying to invade", this);
			mess->AddItem("", dest);
			return;
		}

		destP->Invade(NCGetOwner(), amount);
	}

	assert(amount >= 0);
	dest->AdjustAmounts(ct, amount);	// add cargo to destination
	AdjustAmounts(ct, -amount);		// remove it from the source
}

void CargoHolder::TransferCargo(CargoHolder * dest, CargoType ct, long * amount, Player * player)
{
	if (*amount == 0)
		return;
	assert(*amount > 0);

	if (GetContain(ct) < *amount) {
		Message * mess = player->AddMessage("Warning: Transfer more then carried", this);
		mess->AddLong("Attempted amount", *amount);
		*amount = GetContain(ct);
		mess->AddLong("Actual amount", *amount);
	}

	if (ct == POPULATION) {
		*amount -= *amount % Rules::PopEQ1kT;	// only transfer full groups
		if (dest->GetCargoCapacity() >= 0 && dest->GetCargoCapacity() < dest->GetCargoMass() + (*amount / Rules::PopEQ1kT)) {
			Message * mess = player->AddMessage("Warning: Transfer more then capacity", this);
			mess->AddItem("", dest);
			mess->AddLong("Attempted amount", *amount);
			*amount = (dest->GetCargoCapacity() - dest->GetCargoMass()) * Rules::PopEQ1kT;
			mess->AddLong("Actual amount", *amount);
		}
	} else if (ct == FUEL) {
		Fleet * destf = dynamic_cast<Fleet *>(dest);
		if (destf->GetFuelCapacity() >= 0 && destf->GetFuelCapacity() < destf->GetFuel() + *amount) {
			Message * mess = player->AddMessage("Warning: Transfer more then capacity", this);
			mess->AddItem("", dest);
			mess->AddLong("Attempted amount", *amount);
			*amount = destf->GetFuelCapacity() - destf->GetFuel();
			mess->AddLong("Actual amount", *amount);
		}
	} else {
		if (dest->GetCargoCapacity() >= 0 && dest->GetCargoCapacity() < dest->GetCargoMass() + *amount) {
			Message * mess = player->AddMessage("Warning: Transfer more then capacity", this);
			mess->AddItem("", dest);
			mess->AddLong("Attempted amount", *amount);
			*amount = dest->GetCargoCapacity() - dest->GetCargoMass();
			mess->AddLong("Actual amount", *amount);
		}
	}

	if (ct == POPULATION && GetOwner() != dest->GetOwner()) {
		assert(false);	// should never get here now
		Planet * destp = dynamic_cast<Planet *>(dest);
		if (destp) {
			if (destp->GetBaseNumber() >= 0) {
				player->AddMessage("Warning: Invading world with base", this);
				return;
			} else {
				AdjustAmounts(ct, -*amount);
				destp->Invade(NCGetOwner(), *amount);
				return;
			}
		} else {
			Message * mess = player->AddMessage("Warning: Transfer pop to unowned fleet", this);
			mess->AddItem("", dest);
			return;
		}
	}

	dest->AdjustAmounts(ct, *amount);
	AdjustAmounts(ct, -*amount);
}