/// <summary>
/// Initializes a new <see cref="WaitForTrigger"/>.
/// </summary>
/// <param name="usersToWaitFor">Function returning users to wait for, null indicates to use all currently registered users upon first caller. Called ONCE when first user hits waiting state.</param>
/// <param name="waitingPromptGenerator">The waiting state to use while waiting for the trigger. The outlet of this state will be overwritten</param>
public WaitForUsers_StateExit(
Lobby lobby,
WaitForUsersType usersToWaitFor = WaitForUsersType.Active,
Func <User, UserPrompt> waitingPromptGenerator = null)
: base(waitingPromptGenerator)
{
this.Lobby = lobby;
this.UsersToWaitForType = usersToWaitFor;
}
// TODO: move this to lobby and optimize.
private HashSet <User> GetUsers(WaitForUsersType type)
{
switch (type)
{
// TODO: no need to call this multiple times if not looking at active users.
case WaitForUsersType.All:
return(new HashSet <User>(this.Lobby.GetAllUsers()));
case WaitForUsersType.Active:
return(new HashSet <User>(this.Lobby.GetUsers(UserActivity.Active)));
default:
throw new Exception(Invariant($"Something went wrong. Unknown WaitForUsersType '{type}'"));
}
}
