public async Task <Result <Player, JoinGameError> > JoinGameAsync(GameId gameId, string playerName)
{
var result = await _gameRepository.GetGameAndVersionAsync(gameId);
return(await result.Map <Task <Result <Player, JoinGameError> > >(
async gameAndVersion =>
{
var(game, version) = gameAndVersion;
if (game.Players.Count >= Models.Game.MaxNumberOfPlayers)
{
return JoinGameError.GameFull;
}
var playerJoined = new PlayerJoined(playerName);
await _eventRepository.AddEventAsync(gameId, playerJoined, version);
var changedResources = playerJoined.ApplyAndGetModifiedResources(game);
var changedResourceNames = ChangedResourcesResolver.GetResourceNames(changedResources);
await _gameEventService.NotifyWorldUpdatedAsync(game.Id, changedResourceNames.ToArray());
return Convert(game.Players.Last());
},
readGameError =>
{
return readGameError switch
{
ReadGameError.NotFound => Task.FromResult(new Result <Player, JoinGameError>(JoinGameError.GameNotFound)),
_ => throw new ArgumentOutOfRangeException(nameof(readGameError), readGameError, null)
};
}));
public async Task <Result <Character, ExecuteActionError> > ExecuteActionAsync(GameId gameId, CharacterId characterId, Union <Move, UsePortal, ClearObstacle> action)
{
var result = await _gameRepository.GetGameAndVersionAsync(gameId);
return(await result.Map(
async gameAndVersion =>
{
var(game, version) = gameAndVersion;
var character = game.World.Characters.SingleOrDefault(characterCandidate => characterCandidate.Id == characterId);
if (character == null)
{
return ExecuteActionError.CharacterNotFound;
}
var createEventResult = action.Map(
move => Move(game, character, move.ActionName, move.NumberOfPathsToTravel),
usePortal => UsePortal(game, character, usePortal.PortalPath),
clearObstacle => ClearObstacle(game, character, clearObstacle.Obstacle));
return await createEventResult.Map <Task <Result <Character, ExecuteActionError> > >(
async @event =>
{
await _eventRepository.AddEventAsync(game.Id, @event, version);
var changedResources = @event.ApplyAndGetModifiedResources(game);
var changedResourceNames = ChangedResourcesResolver.GetResourceNames(changedResources);
await _gameEventService.NotifyWorldUpdatedAsync(game.Id, changedResourceNames.ToArray());
return CreateCharacter(character, game.World);
},
error => Task.FromResult(new Result <Character, ExecuteActionError>(error)));
},
readGameError => Task.FromResult(new Result <Character, ExecuteActionError>(ConvertToMoveCharacterError(readGameError)))));
}
