internal void SendObeliskBroken(IWorldClient client, Obelisk obelisk)
{
using var packet = new Packet(PacketType.OBELISK_CHANGE);
packet.Write(obelisk.Id);
packet.Write((byte)obelisk.ObeliskCountry);
client.SendPacket(packet);
}
internal void SendUseVehicle(IWorldClient client, bool success, bool status)
{
using var packet = new Packet(PacketType.USE_VEHICLE);
packet.Write(success);
packet.Write(status);
client.SendPacket(packet);
}
internal void SendQuestStarted(IWorldClient client, ushort questId, int npcId)
{
using var packet = new Packet(PacketType.QUEST_START);
packet.Write(npcId);
packet.Write(questId);
client.SendPacket(packet);
}
internal void SendFriendOnline(IWorldClient client, int id, bool isOnline)
{
using var packet = new Packet(PacketType.FRIEND_ONLINE);
packet.Write(id);
packet.Write(isOnline);
client.SendPacket(packet);
}
internal void SendItemDoesNotBelong(IWorldClient client)
{
using var packet = new Packet(PacketType.ADD_ITEM);
packet.WriteByte(0);
packet.WriteByte(0); // Item doesn't belong to player.
client.SendPacket(packet);
}
internal void SendFullInventory(IWorldClient client)
{
using var packet = new Packet(PacketType.ADD_ITEM);
packet.WriteByte(0);
packet.WriteByte(1); // Inventory is full.
client.SendPacket(packet);
}
internal void SendMobRecover(IWorldClient client, IKillable sender)
{
using var packet = new Packet(PacketType.MOB_RECOVER);
packet.Write(sender.Id);
packet.Write(sender.CurrentHP);
client.SendPacket(packet);
}
internal void SendShapeUpdate(IWorldClient client, Character sender)
{
using var packet = new Packet(PacketType.CHARACTER_SHAPE_UPDATE);
packet.Write(sender.Id);
packet.Write((byte)sender.Shape);
client.SendPacket(packet);
}
internal void SendPortalTeleportNotAllowed(IWorldClient client, PortalTeleportNotAllowedReason reason)
{
using var packet = new Packet(PacketType.CHARACTER_ENTERED_PORTAL);
packet.Write(false); // success
packet.Write((byte)reason);
client.SendPacket(packet);
}
internal void SendAddGem(IWorldClient client, bool success, Item gem, Item destinationItem, byte gemSlot, uint gold, Item saveItem, Item hammer)
{
using var packet = new Packet(PacketType.GEM_ADD);
packet.Write(success);
packet.Write(gem.Bag);
packet.Write(gem.Slot);
packet.Write(gem.Count);
packet.Write(destinationItem.Bag);
packet.Write(destinationItem.Slot);
packet.Write(gemSlot);
packet.Write(gem.TypeId);
packet.WriteByte(0); // unknown, old eps: byBag
packet.WriteByte(0); // unknown, old eps: bySlot
packet.WriteByte(0); // unknown, old eps: byTypeID; maybe in new ep TypeId is int?
packet.Write(gold);
if (hammer is null)
{
packet.WriteByte(0);
packet.WriteByte(0);
}
else
{
packet.Write(hammer.Bag);
packet.Write(hammer.Slot);
}
client.SendPacket(packet);
}
public void OnPlayerMoved(IWorldClient client, PlayerMovedPacket packet)
{
if (client.Player.IsDead)
{
_logger.LogError($"Player {client.Player.Object.Name} is dead, he cannot move with keyboard.");
return;
}
// TODO: Check if player is flying
client.Player.Follow.Reset();
client.Player.Battle.Reset();
client.Player.Object.Position = packet.BeginPosition + packet.DestinationPosition;
client.Player.Object.Angle = packet.Angle;
client.Player.Object.MovingFlags = (ObjectState)packet.State;
client.Player.Object.MotionFlags = (StateFlags)packet.StateFlag;
client.Player.Moves.IsMovingWithKeyboard = client.Player.Object.MovingFlags.HasFlag(ObjectState.OBJSTA_FMOVE) ||
client.Player.Object.MovingFlags.HasFlag(ObjectState.OBJSTA_BMOVE);
client.Player.Moves.DestinationPosition = packet.BeginPosition + packet.DestinationPosition;
_moverPacketFactory.SendMoverMoved(client.Player,
packet.BeginPosition,
packet.DestinationPosition,
client.Player.Object.Angle,
(uint)client.Player.Object.MovingFlags,
(uint)client.Player.Object.MotionFlags,
packet.Motion,
packet.MotionEx,
packet.Loop,
packet.MotionOption,
packet.TickCount);
}
public void OnJoin(IWorldClient client, JoinPacket packet)
{
DbCharacter character = _database.Characters.Include(x => x.User).FirstOrDefault(x => x.Id == packet.PlayerId);
if (character == null)
{
_logger.LogError($"Invalid player id received from client; cannot find player with id: {packet.PlayerId}");
return;
}
if (character.IsDeleted)
{
_logger.LogWarning($"Cannot connect with character '{character.Name}' for user '{character.User.Username}'. Reason: character is deleted.");
return;
}
if (character.User.Authority <= 0)
{
_logger.LogWarning($"Cannot connect with '{character.Name}'. Reason: User {character.User.Username} is banned.");
// TODO: send error to client
return;
}
client.Player = _playerFactory.CreatePlayer(character);
client.Player.Connection = client;
_worldSpawnPacketFactory.SendPlayerSpawn(client.Player);
client.Player.Object.Spawned = true;
client.Player.PlayerData.LoggedInAt = DateTime.UtcNow;
}
/// <summary>
/// Cancels duel.
/// </summary>
/// <param name="cancelReason">player is too far away; player was attacked etc.</param>
private void SendDuelCancel(IWorldClient client, DuelCancelReason cancelReason, int playerId)
{
using var packet = new Packet(PacketType.DUEL_CANCEL);
packet.Write((byte)cancelReason);
packet.Write(playerId);
client.SendPacket(packet);
}
/// <summary>
/// Removes item from trade.
/// </summary>
private void SendRemovedItemFromTrade(IWorldClient client, byte slotInTradeWindow, byte senderType)
{
using var packet = new Packet(PacketType.DUEL_TRADE_REMOVE_ITEM);
packet.Write(senderType);
packet.Write(slotInTradeWindow);
client.SendPacket(packet);
}
/// <summary>
/// "Ok" button change in trade window.
/// </summary>
private void SendDuelApprove(IWorldClient client, byte senderType, bool isDuelDeclined)
{
using var packet = new Packet(PacketType.DUEL_TRADE_OK);
packet.Write(senderType);
packet.Write(isDuelDeclined);
client.SendPacket(packet);
}
internal void SendCharacterMotion(IWorldClient client, int characterId, Motion motion)
{
using var packet = new Packet(PacketType.CHARACTER_MOTION);
packet.Write(characterId);
packet.WriteByte((byte)motion);
client.SendPacket(packet);
}
/// <summary>
/// Sends duel response.
/// </summary>
private void SendDuelResponse(IWorldClient client, DuelResponse response, int characterId)
{
using var packet = new Packet(PacketType.DUEL_RESPONSE);
packet.Write((byte)response);
packet.Write(characterId);
client.SendPacket(packet);
}
private void SendTradeConfirm(byte senderId, bool isDeclined, IWorldClient client)
{
using var packet = new Packet(PacketType.TRADE_FINISH);
packet.WriteByte(senderId);
packet.Write(isDeclined);
client.SendPacket(packet);
}
/// <summary>
/// Adds money to trade.
/// </summary>
private void SendAddedMoneyToTrade(IWorldClient client, byte senderType, uint tradeMoney)
{
using var packet = new Packet(PacketType.DUEL_TRADE_ADD_MONEY);
packet.Write(senderType);
packet.Write(tradeMoney);
client.SendPacket(packet);
}
public void OnProjectileLaunched(IWorldClient client, SfxIdPacket packet)
{
var projectile = _projectileSystem.GetProjectile <ProjectileInfo>(client.Player, packet.IdSfxHit);
if (projectile != null)
{
bool isProjectileValid = true;
if (projectile.Target.Id != packet.TargetId)
{
_logger.LogError($"Invalid projectile target for '{client.Player}'");
isProjectileValid = false;
}
if (projectile.Type != (AttackFlags)packet.Type)
{
_logger.LogError($"Invalid projectile type for '{client.Player}'");
isProjectileValid = false;
}
if (!isProjectileValid)
{
_projectileSystem.RemoveProjectile(client.Player, packet.IdSfxHit);
}
}
}
private void SendTradeDecide(byte senderId, bool isDecided, IWorldClient client)
{
using var packet = new Packet(PacketType.TRADE_DECIDE);
packet.WriteByte(senderId);
packet.Write(isDecided);
client.SendPacket(packet);
}
/// <summary>
/// Sends duel position, in 5 seconds duel will start.
/// </summary>
private void SendReady(IWorldClient client, float x, float z)
{
using var packet = new Packet(PacketType.DUEL_READY);
packet.Write(x);
packet.Write(z);
client.SendPacket(packet);
}
public void OnSnapshot(IWorldClient client, INetPacketStream packet)
{
var snapshotCount = packet.Read <byte>();
while (snapshotCount > 0)
{
var snapshotHeaderNumber = packet.Read <short>();
try
{
var snapshotHeader = (SnapshotType)snapshotHeaderNumber;
_handlerInvoker.Invoke(snapshotHeader, client, packet);
}
catch (ArgumentNullException)
{
if (Enum.IsDefined(typeof(SnapshotType), snapshotHeaderNumber))
{
_logger.LogWarning("Received an unimplemented World snapshot {0} (0x{1}) from {2}.", Enum.GetName(typeof(SnapshotType), snapshotHeaderNumber), snapshotHeaderNumber.ToString("X4"), client.Socket.RemoteEndPoint);
}
else
{
_logger.LogWarning("[SECURITY] Received an unknown World snapshot 0x{0} from {1}.", snapshotHeaderNumber.ToString("X4"), client.Socket.RemoteEndPoint);
}
}
catch (Exception exception)
{
_logger.LogError(exception, $"An error occured while handling a world snapshot.");
_logger.LogDebug(exception.InnerException?.StackTrace);
}
snapshotCount--;
}
}
internal void SendCharacterPartyChanged(IWorldClient client, int characterId, PartyMemberType type)
{
using var packet = new Packet(PacketType.MAP_PARTY_SET);
packet.Write(characterId);
packet.Write((byte)type);
client.SendPacket(packet);
}
private void SendStartTrade(IWorldClient client, int characterId)
{
using var packet = new Packet(PacketType.DUEL_TRADE);
packet.Write(characterId);
packet.WriteByte(0); // ?
client.SendPacket(packet);
}
/// <summary>
/// Send duel approval request.
/// </summary>
private void SendWaitingDuel(IWorldClient client, int duelStarterId, int duelOpponentId)
{
using var packet = new Packet(PacketType.DUEL_REQUEST);
packet.Write(duelStarterId);
packet.Write(duelOpponentId);
client.SendPacket(packet);
}
internal void SendRemoveGem(IWorldClient client, bool success, Item item, byte gemPosition, List <Item> savedGems, uint gold)
{
using var packet = new Packet(PacketType.GEM_REMOVE);
packet.Write(success);
packet.Write(item.Bag);
packet.Write(item.Slot);
packet.Write(gemPosition);
for (var i = 0; i < 6; i++)
{
if (savedGems[i] is null)
{
packet.WriteByte(0); // bag
}
else
{
packet.Write(savedGems[i].Bag);
}
}
for (var i = 0; i < 6; i++)
{
if (savedGems[i] is null)
{
packet.WriteByte(0); // slot
}
else
{
packet.Write(savedGems[i].Slot);
}
}
for (var i = 0; i < 6; i++) // NB! in old eps this value was byte.
{
if (savedGems[i] is null)
{
packet.Write(0); // type id
}
else
{
packet.Write((int)savedGems[i].TypeId);
}
}
for (var i = 0; i < 6; i++)
{
if (savedGems[i] is null)
{
packet.WriteByte(0); // count
}
else
{
packet.Write(savedGems[i].Count);
}
}
packet.Write(gold);
client.SendPacket(packet);
}
/// <inheritdoc />
public void SendWelcome(IWorldClient client, uint sessionId)
{
using var packet = new FFPacket(PacketType.WELCOME);
packet.Write(sessionId);
client.Send(packet);
}
internal void SendCharacterKilled(IWorldClient client, Character character, IKiller killer)
{
using var packet = new Packet(PacketType.CHARACTER_DEATH);
packet.Write(character.Id);
packet.WriteByte(1); // killer type. 1 - another player.
packet.Write(killer.Id);
client.SendPacket(packet);
}
public void OnSnapshotSetDestPosition(IWorldClient client, SetDestPositionPacket packet)
{
client.Player.Object.MovingFlags = ObjectState.OBJSTA_FMOVE;
client.Player.Moves.DestinationPosition = new Vector3(packet.X, packet.Y, packet.Z);
client.Player.Follow.Reset();
_moverPacketFactory.SendDestinationPosition(client.Player);
}
