private static void HandleLeave(GameSession session, PacketReader packet)
{
int groupChatId = packet.ReadInt();
GroupChat groupChat = GameServer.GroupChatManager.GetGroupChatById(groupChatId);
if (groupChat is null)
{
return;
}
groupChat.RemoveMember(session.Player);
session.Send(GroupChatPacket.Leave(groupChat));
groupChat.BroadcastPacketGroupChat(GroupChatPacket.LeaveNotice(groupChat, session.Player));
}