public async Task SendNextRound(string group)
{
try
{
// check that this is initiated by the owner
if (!GroupDetails.TryGetOwner(group, out string ownerconnectionid) ||
!string.Equals(Context.ConnectionId, ownerconnectionid, StringComparison.OrdinalIgnoreCase))
{
return;
}
// choose details about the next round
if (!GroupDetails.StartNextRound(group, out RoundDetails round))
{
await Clients.Group(group).SendAsync("ReceiveMessage", "failed to start round");
return;
}
// give credit for the drawer
GroupDetails.AddToScore(group, round.ConnectionId, round.Timeout / 3f);
GroupDetails.SetHasAnswered(group, round.ConnectionId);
// notify everyone except the drawer
await Clients.GroupExcept(group, round.ConnectionId).SendAsync("ReceiveNextRound", round.Username, round.Timeout, round.ObfuscatedWord, false /* candraw */);
// notify the drawer
await Clients.Client(round.ConnectionId).SendAsync("ReceiveNextRound", round.Username, round.Timeout, round.Word, true /* candraw */);
}
catch (Exception e)
{
await Clients.Group(group).SendAsync("ReceiveMessage", $"failed to start next round: {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}");
}
}