Deepen faction economy and station planning

apps/backend/Simulation/Core/SimulationEngine.cs

@@ -39,8 +39,13 @@ public sealed class SimulationEngine
     _commanderPlanning.UpdateCommanders(this, world, deltaSeconds, events);
     _stationLifecycle.UpdateStations(world, deltaSeconds, events);
 
-    foreach (var ship in world.Ships)
+    foreach (var ship in world.Ships.ToList())
     {
+      if (ship.Health <= 0f)
+      {
+        continue;
+      }
+
       var previousPosition = ship.Position;
       var previousState = ship.State;
       var previousBehavior = ship.DefaultBehavior.Kind;
@@ -58,6 +63,7 @@ public sealed class SimulationEngine
     }
 
     _orbitalStateUpdater.SyncSpatialState(world);
+    CleanupDestroyedEntities(world, events);
     world.GeneratedAtUtc = nowUtc;
 
     return _projection.BuildDelta(world, sequence, events);
@@ -75,6 +81,60 @@ public sealed class SimulationEngine
   internal void PlanStationConstruction(ShipRuntime ship, SimulationWorld world) =>
     _shipControl.PlanStationConstruction(ship, world);
 
+  internal void PlanAttackTarget(ShipRuntime ship, SimulationWorld world) =>
+    _shipControl.PlanAttackTarget(ship, world);
+
+  internal void PlanTransportHaul(ShipRuntime ship, SimulationWorld world) =>
+    _shipControl.PlanTransportHaul(ship, world);
+
   internal static float GetShipCargoAmount(ShipRuntime ship) =>
     SimulationRuntimeSupport.GetShipCargoAmount(ship);
+
+  private static void CleanupDestroyedEntities(SimulationWorld world, ICollection<SimulationEventRecord> events)
+  {
+    foreach (var ship in world.Ships.Where(candidate => candidate.Health <= 0f).ToList())
+    {
+      world.Ships.Remove(ship);
+      if (ship.DockedStationId is not null && world.Stations.FirstOrDefault(station => station.Id == ship.DockedStationId) is { } dockedStation)
+      {
+        dockedStation.DockedShipIds.Remove(ship.Id);
+        dockedStation.DockingPadAssignments.Remove(ship.AssignedDockingPadIndex ?? -1);
+      }
+
+      if (world.Factions.FirstOrDefault(candidate => candidate.Id == ship.FactionId) is { } faction)
+      {
+        faction.ShipsLost += 1;
+      }
+
+      if (ship.CommanderId is not null && world.Commanders.FirstOrDefault(candidate => candidate.Id == ship.CommanderId) is { } commander)
+      {
+        commander.IsAlive = false;
+      }
+
+      events.Add(new SimulationEventRecord("ship", ship.Id, "destroyed", $"{ship.Definition.Label} was destroyed.", DateTimeOffset.UtcNow));
+    }
+
+    foreach (var station in world.Stations.Where(candidate => candidate.Health <= 0f).ToList())
+    {
+      world.Stations.Remove(station);
+
+      if (station.CelestialId is not null && world.Celestials.FirstOrDefault(candidate => candidate.Id == station.CelestialId) is { } celestial)
+      {
+        celestial.OccupyingStructureId = null;
+      }
+
+      foreach (var claim in world.Claims.Where(candidate => candidate.CelestialId == station.CelestialId))
+      {
+        claim.Health = 0f;
+        claim.State = ClaimStateKinds.Destroyed;
+      }
+
+      foreach (var site in world.ConstructionSites.Where(candidate => candidate.StationId == station.Id))
+      {
+        site.State = ConstructionSiteStateKinds.Destroyed;
+      }
+
+      events.Add(new SimulationEventRecord("station", station.Id, "destroyed", $"{station.Label} was destroyed.", DateTimeOffset.UtcNow));
+    }
+  }
 }

apps/backend/Simulation/Core/SimulationProjectionService.cs

@@ -101,6 +101,7 @@ internal sealed class SimulationProjectionService
             station.Id,
             station.Label,
             station.Category,
+            station.Objective,
             station.SystemId,
             station.LocalPosition,
             station.CelestialId,
@@ -544,6 +545,7 @@ internal sealed class SimulationProjectionService
       station.Id,
       station.Label,
       station.Category,
+      station.Objective,
       station.SystemId,
       ToDto(station.Position),
       station.CelestialId,
@@ -770,8 +772,16 @@ internal sealed class SimulationProjectionService
           ps.ControlledSystemCount,
           ps.TargetSystemCount,
           ps.HasShipFactory,
-          ps.OreStockpile,
-          ps.RefinedMetalsStockpile);
+          NormalizeFiniteFloat(ps.OreStockpile),
+          NormalizeFiniteFloat(ps.RefinedMetalsStockpile),
+          NormalizeFiniteFloat(ps.RefinedMetalsProductionRate),
+          NormalizeFiniteFloat(ps.HullpartsStockpile),
+          NormalizeFiniteFloat(ps.HullpartsProductionRate),
+          NormalizeFiniteFloat(ps.ClaytronicsStockpile),
+          NormalizeFiniteFloat(ps.ClaytronicsProductionRate),
+          NormalizeFiniteFloat(ps.WaterStockpile),
+          NormalizeFiniteFloat(ps.WaterProductionRate),
+          NormalizeFiniteFloat(ps.WaterShortageHorizonSeconds));
     }
 
     if (commander?.LastGoalPriorities is { } prios)
@@ -811,4 +821,7 @@ internal sealed class SimulationProjectionService
           state.Transit.Progress));
 
   private static Vector3Dto ToDto(Vector3 value) => new(value.X, value.Y, value.Z);
+
+  private static float NormalizeFiniteFloat(float value) =>
+      float.IsFinite(value) ? value : -1f;
 }