public World First(string simulationId)
{
var filePath = _filePathBuilder.Build(simulationId);
var snapshotAsJson = ReadNthLineFromFile(filePath, 0);
var world = JsonConvert.DeserializeObject <World>(snapshotAsJson);
return(world);
}
public async Task SaveAsync(World world, string simulationId)
{
var filePath = _filePathBuilder.Build(simulationId);
EnsureDirectoryExists(_filePathBuilder);
EnsureFileExists(filePath);
await using var file = File.AppendText(filePath);
var worldAsJson = JsonConvert.SerializeObject(world);
await file.WriteLineAsync(worldAsJson);
}