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osu-lazer/osu.Game/Screens/Multi/RoomManager.cs
2019-10-30 14:41:54 +09:00

187 lines
5.3 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Linq;
using System.Threading.Tasks;
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Logging;
using osu.Game.Beatmaps;
using osu.Game.Online;
using osu.Game.Online.API;
using osu.Game.Online.API.Requests;
using osu.Game.Online.Multiplayer;
using osu.Game.Rulesets;
using osu.Game.Screens.Multi.Lounge.Components;
namespace osu.Game.Screens.Multi
{
public class RoomManager : PollingComponent, IRoomManager
{
public event Action RoomsUpdated;
private readonly BindableList<Room> rooms = new BindableList<Room>();
public IBindableList<Room> Rooms => rooms;
private Room joinedRoom;
[Resolved]
private Bindable<FilterCriteria> currentFilter { get; set; }
[Resolved]
private IAPIProvider api { get; set; }
[Resolved]
private RulesetStore rulesets { get; set; }
[Resolved]
private BeatmapManager beatmaps { get; set; }
[BackgroundDependencyLoader]
private void load()
{
currentFilter.BindValueChanged(_ =>
{
if (IsLoaded)
PollImmediately();
});
}
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
PartRoom();
}
public void CreateRoom(Room room, Action<Room> onSuccess = null, Action<string> onError = null)
{
room.Host.Value = api.LocalUser.Value;
var req = new CreateRoomRequest(room);
req.Success += result =>
{
joinedRoom = room;
update(room, result);
addRoom(room);
RoomsUpdated?.Invoke();
onSuccess?.Invoke(room);
};
req.Failure += exception =>
{
if (req.Result != null)
onError?.Invoke(req.Result.Error);
else
Logger.Log($"Failed to create the room: {exception}", level: LogLevel.Important);
};
api.Queue(req);
}
private JoinRoomRequest currentJoinRoomRequest;
public void JoinRoom(Room room, Action<Room> onSuccess = null, Action<string> onError = null)
{
currentJoinRoomRequest?.Cancel();
currentJoinRoomRequest = new JoinRoomRequest(room, api.LocalUser.Value);
currentJoinRoomRequest.Success += () =>
{
joinedRoom = room;
onSuccess?.Invoke(room);
};
currentJoinRoomRequest.Failure += exception =>
{
if (!(exception is OperationCanceledException))
Logger.Log($"Failed to join room: {exception}", level: LogLevel.Important);
onError?.Invoke(exception.ToString());
};
api.Queue(currentJoinRoomRequest);
}
public void PartRoom()
{
currentJoinRoomRequest?.Cancel();
if (joinedRoom == null)
return;
api.Queue(new PartRoomRequest(joinedRoom, api.LocalUser.Value));
joinedRoom = null;
}
private GetRoomsRequest pollReq;
protected override Task Poll()
{
if (!api.IsLoggedIn)
return base.Poll();
var tcs = new TaskCompletionSource<bool>();
pollReq?.Cancel();
pollReq = new GetRoomsRequest(currentFilter.Value.PrimaryFilter);
pollReq.Success += result =>
{
// Remove past matches
foreach (var r in rooms.ToList())
{
if (result.All(e => e.RoomID.Value != r.RoomID.Value))
rooms.Remove(r);
}
for (int i = 0; i < result.Count; i++)
{
var r = result[i];
r.Position.Value = i;
update(r, r);
addRoom(r);
}
RoomsUpdated?.Invoke();
tcs.SetResult(true);
};
pollReq.Failure += _ => tcs.SetResult(false);
api.Queue(pollReq);
return tcs.Task;
}
/// <summary>
/// Updates a local <see cref="Room"/> with a remote copy.
/// </summary>
/// <param name="local">The local <see cref="Room"/> to update.</param>
/// <param name="remote">The remote <see cref="Room"/> to update with.</param>
private void update(Room local, Room remote)
{
foreach (var pi in remote.Playlist)
pi.MapObjects(beatmaps, rulesets);
local.CopyFrom(remote);
}
/// <summary>
/// Adds a <see cref="Room"/> to the list of available rooms.
/// </summary>
/// <param name="room">The <see cref="Room"/> to add.</param>
private void addRoom(Room room)
{
var existing = rooms.FirstOrDefault(e => e.RoomID.Value == room.RoomID.Value);
if (existing == null)
rooms.Add(room);
else
existing.CopyFrom(room);
}
}
}