public static void Main(string[] args)
{
// Doing this "properly" is super crap. (Why again?)
string workDir = File.Exists("work/simdb.sqlite") ? "work" : "../work";
// 0. init internals
using var log = new LoggingManager(Path.Join(workDir, "simlog_dummy.csv"));
// 1. open pre-initialized DB
var db = SqliteSimDatabase.Open(Path.Join(workDir, "simdb.sqlite"));
// 2. simulate
var sim = new Simulation(db.GetCoordinateSpace(), db, db, log);
// 3. add agents
for (int unitIndex = 0; unitIndex < db.GetNumUnits(); unitIndex++)
{
// FIXME: StationToStationAgent will be extremely slow if there are no easily reachable stations
//sim.AddAgent(new StationToStationAgent(db, db, log, unitIndex));
}
uglyGlobalSimulation = sim;
Subscribe(sim);
// now start web server
CreateHostBuilder(args).Build().Run();
}
static void Main(string[] args)
{
Parser.Default.ParseArguments <Options>(args)
.WithParsed <Options>(o =>
{
// import GeoJSON data to SQLite
if (o.ImportScenario != null)
{
InitializeDatabaseFrom(o.DbFile, o.ImportScenario);
}
// open database
var db = SqliteSimDatabase.Open(o.DbFile);
// simulate
if (o.Simulate)
{
var logFileName = o.DbFile + ".csv";
using var log = new LoggingManager(logFileName);
var sw = new Stopwatch();
sw.Restart();
var sim = new Simulation(db.GetCoordinateSpace(), db, db, log);
var steps = 50;
var dt = 1.0f;
for (var i = 0; i < steps; i++)
{
sim.Step(dt);
}
Console.WriteLine($"Took {sw.ElapsedMilliseconds * 0.001:F2} s to simulate {steps * dt:F2} s");
}
// render 2D/3D view
if (o.RenderSvg != null)
{
GraphicsOutput.RenderSvg(db.GetCoordinateSpace(), db, db, o.RenderSvg);
}
});
}
private static void InitializeDatabaseFrom(string dbPath, string scenarioJsonFilename)
{
var scenario = ScenarioLoader.LoadScenario(scenarioJsonFilename);
using (var db = SqliteSimDatabase.New(dbPath, scenario.coordinateSpace))
{
db.AddSegments(scenario.networkDatabase.EnumerateSegments());
db.AddSegmentLinks(scenario.networkDatabase.EnumerateSegmentLinks());
db.AddStations(scenario.networkDatabase.EnumerateStations());
// This is super weird. GetQuadTree shouldn't be normally exposed. At the same time, we do not want
// to do duplicate work. Possible solutions:
// - do not expose the methods on the interface, but do so on the implementation (but then we're bound to a specific impl)
// - move the processing from GeoJsonDatabase's constructor to NetworkImportUtility so that code
// doesn't have to be repeated
db.PutQuadTree(((GeoJsonNetworkDatabase)scenario.networkDatabase).GetQuadTree());
db.AddUnits(scenario.units);
}
}
public static void Main(float simStep = 0.2F, int publishInterval = 5)
{
// Doing this "properly" is super crap. (Why again?)
string workDir = File.Exists("work/simdb.sqlite") ? "work" : "../work";
// 0. init internals
using var log = new LoggingManager(Path.Join(workDir, "simlog.csv"));
var cp = new LoggingManager.ClassPolicy(acceptByDefault: false, acceptId: new int[] { 0 });
// cp.SetThrottleRate(1);
// log.SetClassPolicy(typeof(StationToStationAgent), cp);
// 1. open pre-initialized DB
var db = SqliteSimDatabase.Open(Path.Join(workDir, "simdb.sqlite"));
// 2. simulate
var sim = new Simulation(db.GetCoordinateSpace(), db, db, log);
// 3. add agents
for (int unitIndex = 0; unitIndex < db.GetNumUnits(); unitIndex++)
{
// FIXME: StationToStationAgent will be extremely slow if there are no easily reachable stations
//sim.AddAgent(new StationToStationAgent(db, db, log, unitIndex));
}
// Init RabbitMQ
var factory = new ConnectionFactory()
{
HostName = "localhost"
};
var connection = factory.CreateConnection();
var channel = connection.CreateModel();
channel.ExchangeDeclare(exchange: "SimState_full.cbor",
type: ExchangeType.Fanout);
// Init Signal log
var eh = log.GetEntityHandle(typeof(Program), -1);
var perfPin = log.GetSignalPin(eh, "timeUtilization");
float?lastPerfValue = null;
var sw = new Stopwatch();
var lastReport = DateTime.Now;
var simTimeSinceLastReportMs = 0;
long realTimeSinceLastReportMs = 0;
for (int simStepNum = 0; ; simStepNum++)
{
sw.Restart();
sim.Step(simStep);
sw.Stop();
var realTimeMs = sw.ElapsedMilliseconds;
simTimeSinceLastReportMs += (int)(simStep * 1000);
realTimeSinceLastReportMs += realTimeMs;
if (DateTime.Now > lastReport + TimeSpan.FromSeconds(1))
{
// Console.WriteLine($"Took {realTimeSinceLastReportMs * 0.001:F2} s to simulate {simTimeSinceLastReportMs * 0.001:F2} s");
var perf = (float)realTimeSinceLastReportMs / simTimeSinceLastReportMs;
log.Feed(perfPin, perf);
lastPerfValue = perf;
lastReport = DateTime.Now;
simTimeSinceLastReportMs = 0;
realTimeSinceLastReportMs = 0;
}
if (simStepNum % publishInterval == 0)
{
var unitsSnapshot = sim.Units.SnapshotFullMake();
var controllerMap = sim.GetControllerStateSummary();
var controlSnapshot = Serialization.SerializeTrainControlStateToJsonUtf8Bytes(controllerMap);
var simInfoSnapshot = Serialization.MakeSimInfoSnapshot(sim, lastPerfValue);
var fullSnapshot = Serialization.GlueFullSimSnapshot(unitsSnapshot, controlSnapshot, simInfoSnapshot);
channel.BasicPublish(exchange: "SimState_full.cbor",
routingKey: "",
basicProperties: null,
body: fullSnapshot);
// Console.WriteLine($"Pub {sim.SimTimeElapsed}");
}
var sleepTimeMs = simStep * 1000 - realTimeMs;
if (sleepTimeMs > 0)
{
Thread.Sleep((int)sleepTimeMs);
}
}
// TODO: save end state
}
