public override async Task <DialogTurnResult> BeginDialogAsync(
DialogContext dc,
object options = null,
CancellationToken cancellationToken = default(CancellationToken))
{
if (dc == null)
{
throw new ArgumentNullException(nameof(dc));
}
// We load the object and actor positions from the room state.
var roomStates = await _roomStateAccessor.GetAsync(dc.Context, () => new Dictionary <string, RoomState>());
// If there's no room state found, use the initial room state.
RoomState roomState;
if (!roomStates.TryGetValue(_roomId, out roomState))
{
roomState = _gameInfo.InitialRoomStates[_roomId];
roomStates.Add(_roomId, roomState);
}
// When the player enters a new room, send a RoomEntered event to
// populate the room.
await dc.Context.SendActivityAsync(_activityFactory.RoomEntered(dc, _roomId, roomState));
// There may be some actions that must be performed immediately after the player
// enters the room (e.g. walk to a specific spot).
var actions = await GetActionsAsync(dc, Command.EnterRoom);
if (actions.Any())
{
// Map the actions to Bot Framework activities and send them to the client.
if (!await ExecuteActionsAsync(dc, actions))
{
// If ExecuteActionsAsync returns false, don't send anymore activities
// to the client. Control is handed over to a different dialog.
return(new DialogTurnResult(DialogTurnStatus.Waiting));
}
}
// Send an Idle activity to let the GUI know that we're waiting for user interaction.
await dc.Context.SendActivityAsync(_activityFactory.Idle(dc));
return(new DialogTurnResult(DialogTurnStatus.Waiting));
}