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DarkflameServer/dNet/MasterPackets.h
Aaron Kimbrell 79d69bf4ac fix(master): a rocket launch preps the clone the player is going to 
Launching to a property started an extra clone 0 instance of the zone besides the property's own, because
the prep only carried the zone. PrepZone now carries the clone when there is one (written only then, so a
plain prep is unchanged).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-29 23:11:20 -05:00

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#ifndef MASTERPACKETS_H
#define MASTERPACKETS_H
#include <cstdint>
#include <string>
#include <vector>
#include "RakNetTypes.h"
#include "dCommonVars.h"
#include "BitStreamUtils.h"
#include "MessageType/Master.h"
#include "ServiceType.h"
#include "Stamps.h"
#include "master/DashboardMessages.h"
#include "master/DataChanged.h"
#include "master/InstanceMigration.h"
#include "master/LiveUpdate.h"
#include "master/MessageCapture.h"
#include "master/PlayerAction.h"
#include "master/UgcModelsMade.h"
class dServer;
/**
* Packets between master and the other servers (MessageType::Master). None of them reach a client.
*
* The dashboard's messages and instance migration are MASTER packets too; they live in per-topic headers under
* dNet/master/ (PlayerAction.h, DataChanged.h, DashboardMessages.h, MessageCapture.h, InstanceMigration.h,
* LiveUpdate.h, UgcModelsMade.h), which
* this header includes, so including MasterPackets.h gives every MASTER struct.
*/
namespace MasterPackets {
// Any server -> master, over server's connection to master (Game::server's when null)
void SendToMaster(const LUBitStream& msg, dServer* server = nullptr);
// Master -> one server. Never broadcasts: nothing is sent to UNASSIGNED_SYSTEM_ADDRESS (a server that hasn't
// connected yet), unlike LUBitStream::Send.
void SendTo(const SystemAddress& sysAddr, const LUBitStream& msg);
// World -> master: a player wants to go to zoneID (clone cloneID)
struct RequestZoneTransfer : public LUBitStream {
uint64_t requestID{};
uint8_t mythranShift{};
uint32_t zoneID{};
uint32_t cloneID{};
// The login stamps travelling with the request (see Stamps.h); empty unless auth asks for a world during a
// login. Read leniently: a request without them reads as empty.
Stamps stamps{};
RequestZoneTransfer() : LUBitStream(ServiceType::MASTER, MessageType::Master::REQUEST_ZONE_TRANSFER) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// Master -> world: where to send the player of requestID
struct RequestZoneTransferResponse : public LUBitStream {
uint64_t requestID{};
uint8_t mythranShift{};
uint32_t zoneID{};
uint32_t zoneInstance{};
uint32_t zoneClone{};
uint16_t serverPort{};
LUString serverIP{ 255u };
// The request's login stamps with master's own added (see Stamps.h). Read leniently like the request's.
Stamps stamps{};
RequestZoneTransferResponse() : LUBitStream(ServiceType::MASTER, MessageType::Master::REQUEST_ZONE_TRANSFER_RESPONSE) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// Any server -> master, once connected; master -> dashboard for every other server (ip "offline" when one is gone)
struct ServerInfo : public LUBitStream {
uint32_t port{};
uint32_t zoneID{};
uint32_t instanceID{};
ServiceType serverType{};
LUString ip{};
ServerInfo() : LUBitStream(ServiceType::MASTER, MessageType::Master::SERVER_INFO) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// World -> master: the session key of the account logging in
struct RequestSessionKey : public LUBitStream {
LUWString username{};
RequestSessionKey() : LUBitStream(ServiceType::MASTER, MessageType::Master::REQUEST_SESSION_KEY) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// Auth -> master: an account logged in with this session key
struct SetSessionKey : public LUBitStream {
uint32_t sessionKey{};
LUString username{};
SetSessionKey() : LUBitStream(ServiceType::MASTER, MessageType::Master::SET_SESSION_KEY) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// Master -> world: answer to RequestSessionKey
struct SessionKeyResponse : public LUBitStream {
uint32_t sessionKey{};
LUWString username{};
SessionKeyResponse() : LUBitStream(ServiceType::MASTER, MessageType::Master::SESSION_KEY_RESPONSE) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// Master -> every server: the account logged in again with a new session key
struct NewSessionAlert : public LUBitStream {
uint32_t sessionKey{};
LUString username{};
NewSessionAlert() : LUBitStream(ServiceType::MASTER, MessageType::Master::NEW_SESSION_ALERT) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// World -> master -> dashboard: a player came into (PLAYER_ADDED) or left (PLAYER_REMOVED) a world
struct PlayerCountChange : public LUBitStream {
LWOMAPID zoneID{};
LWOINSTANCEID instanceID{};
PlayerCountChange(MessageType::Master id) : LUBitStream(ServiceType::MASTER, id) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
struct PlayerAdded : public PlayerCountChange {
PlayerAdded() : PlayerCountChange(MessageType::Master::PLAYER_ADDED) {}
};
struct PlayerRemoved : public PlayerCountChange {
PlayerRemoved() : PlayerCountChange(MessageType::Master::PLAYER_REMOVED) {}
};
// World -> master: start a private instance of zoneID that needs `password` to join
struct CreatePrivateZone : public LUBitStream {
// Longer passwords are cut to this when read
static constexpr uint32_t MAX_PASSWORD_LENGTH = 50;
uint32_t zoneID{};
uint32_t cloneID{};
std::string password; // u32 length, then 1 byte per character
CreatePrivateZone() : LUBitStream(ServiceType::MASTER, MessageType::Master::CREATE_PRIVATE_ZONE) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// World -> master: send the player of requestID to the private instance with this password
struct RequestPrivateZone : public LUBitStream {
// Longer passwords are cut to this when read
static constexpr uint32_t MAX_PASSWORD_LENGTH = 50;
uint64_t requestID{};
uint8_t mythranShift{};
std::string password; // u32 length, then 1 byte per character
RequestPrivateZone() : LUBitStream(ServiceType::MASTER, MessageType::Master::REQUEST_PRIVATE_ZONE) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// World -> master: the world finished loading and takes players
struct WorldReady : public LUBitStream {
LWOMAPID zoneID{};
LWOINSTANCEID instanceID{};
WorldReady() : LUBitStream(ServiceType::MASTER, MessageType::Master::WORLD_READY) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// Master -> dashboard (WORLD_READY): a world is ready, and where it is
struct WorldReadyInfo : public LUBitStream {
LWOMAPID zoneID{};
LWOINSTANCEID instanceID{};
LWOCLONEID cloneID{};
LUString ip{};
uint32_t port{};
uint8_t isPrivate{};
WorldReadyInfo() : LUBitStream(ServiceType::MASTER, MessageType::Master::WORLD_READY) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// World -> master: start an instance of zoneID now, players are about to ask for it. cloneID: the clone they will ask
// for (a property), written only when not 0 so a plain prep stays as it always was
struct PrepZone : public LUBitStream {
int32_t zoneID{};
uint32_t cloneID{};
PrepZone() : LUBitStream(ServiceType::MASTER, MessageType::Master::PREP_ZONE) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// Master -> any server: shut down
struct Shutdown : public LUBitStream {
Shutdown() : LUBitStream(ServiceType::MASTER, MessageType::Master::SHUTDOWN) {}
};
// World -> master: shutting down
struct ShutdownResponse : public LUBitStream {
ShutdownResponse() : LUBitStream(ServiceType::MASTER, MessageType::Master::SHUTDOWN_RESPONSE) {}
};
// Master -> dashboard (SHUTDOWN_RESPONSE): a world is gone
struct WorldShutDown : public LUBitStream {
LWOMAPID zoneID{};
LWOINSTANCEID instanceID{};
WorldShutDown() : LUBitStream(ServiceType::MASTER, MessageType::Master::SHUTDOWN_RESPONSE) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// World -> master: a GM asked to shut every server down in 10 minutes
struct ShutdownUniverse : public LUBitStream {
ShutdownUniverse() : LUBitStream(ServiceType::MASTER, MessageType::Master::SHUTDOWN_UNIVERSE) {}
};
// Master -> world: can you take the player of requestID? (AFFIRM_TRANSFER_REQUEST); world -> master: yes
// (AFFIRM_TRANSFER_RESPONSE)
struct AffirmTransfer : public LUBitStream {
uint64_t requestID{};
AffirmTransfer(MessageType::Master id) : LUBitStream(ServiceType::MASTER, id) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
struct AffirmTransferRequest : public AffirmTransfer {
AffirmTransferRequest() : AffirmTransfer(MessageType::Master::AFFIRM_TRANSFER_REQUEST) {}
};
struct AffirmTransferResponse : public AffirmTransfer {
AffirmTransferResponse() : AffirmTransfer(MessageType::Master::AFFIRM_TRANSFER_RESPONSE) {}
};
// Dashboard -> master: which servers are running (answered with ServerListResponse)
struct RequestServerList : public LUBitStream {
RequestServerList() : LUBitStream(ServiceType::MASTER, MessageType::Master::REQUEST_SERVER_LIST) {}
};
// Master -> dashboard
struct ServerListResponse : public LUBitStream {
// More than this many worlds is a broken packet
static constexpr uint32_t MAX_INSTANCES = 10000;
// Where a world is: connected, launched but not connected yet, shutting down, or connected but having its
// players moved to a new instance (a live update or instance migration; nobody new is sent there)
enum class eState : uint8_t { READY = 0, STARTING = 1, STOPPING = 2, DRAINING = 3 };
struct Instance {
LWOMAPID mapID{};
LWOINSTANCEID instanceID{};
LWOCLONEID cloneID{};
uint32_t players{};
LUString ip{};
uint32_t port{};
uint8_t isPrivate{};
eState state{ eState::READY }; // written after the UGC fields, one byte per instance
};
uint8_t authOnline{};
uint8_t chatOnline{};
std::vector<Instance> instances; // u32 count
// The UGC server (docs/UgcServer.md), after the instances: whether master starts it (enable_ugc_server),
// whether it is connected, and the process id master last started it as (0: unknown)
uint8_t ugcEnabled{};
uint8_t ugcOnline{};
uint32_t ugcPid{};
ServerListResponse() : LUBitStream(ServiceType::MASTER, MessageType::Master::SERVER_LIST_RESPONSE) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
// Dashboard -> master: shut the whole server down now (scheduled restarts)
struct DashboardShutdown : public LUBitStream {
DashboardShutdown() : LUBitStream(ServiceType::MASTER, MessageType::Master::DASHBOARD_SHUTDOWN) {}
};
// Dashboard -> master -> every server: settings changed on the dashboard, reload the config
struct ConfigReload : public LUBitStream {
ConfigReload() : LUBitStream(ServiceType::MASTER, MessageType::Master::CONFIG_RELOAD) {}
};
// Dashboard -> master: shut down one world instance
struct InstanceShutdown : public LUBitStream {
uint32_t zoneID{};
uint32_t instanceID{};
InstanceShutdown() : LUBitStream(ServiceType::MASTER, MessageType::Master::INSTANCE_SHUTDOWN) {}
void Serialize(RakNet::BitStream& bitStream) const override;
bool Deserialize(RakNet::BitStream& bitStream) override;
};
}
#endif // MASTERPACKETS_H
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