public async Task SendMessage(string group, string message)
{
if (string.IsNullOrWhiteSpace(message))
{
return;
}
// todo there is a corner case with only 1 player where the end will not end by answering the right answer
// the reason is that the round is over but the detection logic does not catch that
try
{
// get username
GroupDetails.TryGetUsername(group, Context.ConnectionId, out string username);
// check if we are in a round, and if so then check if this is a valid guess
GroupDetails.TryGetInRound(group, out bool inround, out bool atendofround, out RoundDetails round);
if (inround && round != null)
{
// check if this guess is currect
if (message.IndexOf(round.Word, StringComparison.OrdinalIgnoreCase) >= 0)
{
// cannot guess for your own question or if you have already gotten it right
if (!atendofround)
{
if (GroupDetails.TryGetHasAnswered(group, Context.ConnectionId, out bool answered) && !answered)
{
// give credit
GroupDetails.AddToScore(group, Context.ConnectionId, (float)(round.End - DateTime.UtcNow).TotalSeconds);
// mark that you answered
GroupDetails.SetHasAnswered(group, Context.ConnectionId);
}
// check again
GroupDetails.TryGetInRound(group, out inround, out atendofround, out round);
}
// remove the correct word from the phrase
message = message.Replace(round.Word, "correct :)", StringComparison.OrdinalIgnoreCase);
}
}
// send the message to everyone in this group
await Clients.Group(group).SendAsync("ReceiveMessage", $"{username}: {message}");
// finish early if done
if (atendofround)
{
await SendRoundComplete(group);
}
}
catch (Exception e)
{
await Clients.Group(group).SendAsync("ReceiveMessage", $"failed to send message: {e.Message}");
}
}
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 SendClear(string group)
{
try
{
// ensure this person is the drawer
GroupDetails.TryGetInRound(group, out bool inround, out bool atendofround, out RoundDetails round);
// exit if this client is not allowed to draw across all the screens
if (!inround || atendofround || !string.Equals(Context.ConnectionId, round.ConnectionId, StringComparison.OrdinalIgnoreCase))
{
return;
}
// send clear to everyone in this group
await Clients.OthersInGroup(group).SendAsync("ReceiveClear");
}
catch (Exception e)
{
await Clients.Group(group).SendAsync("ReceiveMessage", $"failed to clear: {e.Message}");
}
}
public async Task SendLine(string group, double x1, double y1, double x2, double y2, string color, float diameter)
{
try
{
// ensure this person is the drawer
GroupDetails.TryGetInRound(group, out bool inround, out bool atendofround, out RoundDetails round);
// exit if this client is not allowed to draw across all the screens
if (!inround || atendofround || !string.Equals(Context.ConnectionId, round.ConnectionId, StringComparison.OrdinalIgnoreCase))
{
return;
}
// send the point to everyone (except the sender) in this group
await Clients.OthersInGroup(group).SendAsync("ReceiveLine", x1, y1, x2, y2, color, diameter);
}
catch (Exception e)
{
await Clients.Group(group).SendAsync("ReceiveMessage", $"failed to send line: {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}");
}
}
