public async Task SendRoundComplete(string group)
{
try
{
// this method is callable by any connection
GroupDetails.TryGetInRound(group, out bool inround, out bool atendofround, out RoundDetails round);
// stop round
GroupDetails.SetInRound(group, inround: false);
// send a round done notification
await Clients.Group(group).SendAsync("ReceiveRoundComplete", round != null ? round.Word : "");
// refresh the user list (with scores)
await Clients.Group(group).SendAsync("ReceiveJoin", GetSortedUsers(GroupDetails.GetUsers(group)));
}
catch (Exception e)
{
await Clients.Group(group).SendAsync("ReceiveMessage", $"failed to complete round: {e.Message}");
}
}
public async Task SendJoin(string group, string username)
{
try
{
// associate username with group
if (!GroupDetails.AddUser(group: group, connectionId: Context.ConnectionId, username))
{
await Clients.Group(group).SendAsync("ReceiveMessage", $"failed to add {username}");
return;
}
// associate connection with group
await Groups.AddToGroupAsync(Context.ConnectionId, group);
// broadcast current players to everyone in the group
await Clients.Group(group).SendAsync("ReceiveJoin", GetSortedUsers(GroupDetails.GetUsers(group)));
// check if a round is in flight
GroupDetails.TryGetInRound(group, out bool inround, out bool atendofround, out RoundDetails round);
if (inround && !atendofround && round != null)
{
await Clients.Client(Context.ConnectionId).SendAsync("ReceiveNextRound", round.Username, round.Timeout, round.ObfuscatedWord, false /* candraw */);
return;
}
// make sure the player get the game start notification
if (GroupDetails.IsGroupStarted(group))
{
// send the game start inidcator
await Clients.Client(Context.ConnectionId).SendAsync("ReceiveStartGame");
}
}
catch (Exception e)
{
await Clients.Group(group).SendAsync("ReceiveMessage", $"failed to join game: {e.Message}");
}
}
public override async Task OnDisconnectedAsync(Exception exception)
{
try
{
// get the group and username associated with this connectionid
GroupDetails.TryGetUsername(Context.ConnectionId, out string group, out string username);
try
{
// what if the owner drops?
if (!string.IsNullOrWhiteSpace(group) && GroupDetails.TryGetOwner(group, out string ownerconnectionid))
{
if (string.Equals(Context.ConnectionId, ownerconnectionid, StringComparison.OrdinalIgnoreCase))
{
// ugh - we cannot proceed
await SendMessage(group, "I left the game and no more rounds can be played (sorry)");
}
else
{
// notify that you left
await SendMessage(group, $"I left the game");
}
}
// clean up
GroupDetails.Purge(Context.ConnectionId);
// broadcast the updated group
if (!string.IsNullOrWhiteSpace(group))
{
await Clients.Group(group).SendAsync("ReceiveJoin", GetSortedUsers(GroupDetails.GetUsers(group)));
}
await base.OnDisconnectedAsync(exception);
}
catch (Exception e)
{
await Clients.Group(group).SendAsync("ReceiveMessage", $"failed to disconnect: {e.Message}");
}
}
catch (Exception e)
{
await Clients.All.SendAsync("ReceiveMessage", $"Catastrophic failure: {e.Message}");
}
}