Split viewer and simulation into separate apps

apps/backend/Simulation/RuntimeModels.cs

@@ -0,0 +1,134 @@
+using SpaceGame.Simulation.Api.Data;
+
+namespace SpaceGame.Simulation.Api.Simulation;
+
+public sealed class SimulationWorld
+{
+  public required string Label { get; init; }
+  public required int Seed { get; init; }
+  public required BalanceDefinition Balance { get; init; }
+  public required List<SystemRuntime> Systems { get; init; }
+  public required List<ResourceNodeRuntime> Nodes { get; init; }
+  public required List<StationRuntime> Stations { get; init; }
+  public required List<ShipRuntime> Ships { get; init; }
+  public required List<FactionRuntime> Factions { get; init; }
+  public required Dictionary<string, ShipDefinition> ShipDefinitions { get; init; }
+  public DateTimeOffset GeneratedAtUtc { get; set; }
+}
+
+public sealed class SystemRuntime
+{
+  public required SolarSystemDefinition Definition { get; init; }
+  public required Vector3 Position { get; init; }
+}
+
+public sealed class ResourceNodeRuntime
+{
+  public required string Id { get; init; }
+  public required string SystemId { get; init; }
+  public required Vector3 Position { get; init; }
+  public required string ItemId { get; init; }
+  public float OreRemaining { get; set; }
+  public float MaxOre { get; init; }
+}
+
+public sealed class StationRuntime
+{
+  public required string Id { get; init; }
+  public required string SystemId { get; init; }
+  public required ConstructibleDefinition Definition { get; init; }
+  public required Vector3 Position { get; init; }
+  public required string FactionId { get; init; }
+  public float OreStored { get; set; }
+  public float RefinedStock { get; set; }
+  public float ProcessTimer { get; set; }
+  public HashSet<string> DockedShipIds { get; } = [];
+}
+
+public sealed class ShipRuntime
+{
+  public required string Id { get; init; }
+  public required string SystemId { get; set; }
+  public required ShipDefinition Definition { get; init; }
+  public required string FactionId { get; init; }
+  public required Vector3 Position { get; set; }
+  public required Vector3 TargetPosition { get; set; }
+  public string State { get; set; } = "idle";
+  public ShipOrderRuntime? Order { get; set; }
+  public required DefaultBehaviorRuntime DefaultBehavior { get; set; }
+  public required ControllerTaskRuntime ControllerTask { get; set; }
+  public float ActionTimer { get; set; }
+  public float Cargo { get; set; }
+  public string? DockedStationId { get; set; }
+  public float Health { get; set; }
+  public List<string> History { get; } = [];
+  public string LastSignature { get; set; } = string.Empty;
+}
+
+public sealed class FactionRuntime
+{
+  public required string Id { get; init; }
+  public required string Label { get; init; }
+  public required string Color { get; init; }
+  public float Credits { get; set; }
+  public float OreMined { get; set; }
+  public float GoodsProduced { get; set; }
+  public int ShipsBuilt { get; set; }
+  public int ShipsLost { get; set; }
+}
+
+public sealed class ShipOrderRuntime
+{
+  public required string Kind { get; init; }
+  public string Status { get; set; } = "accepted";
+  public required string DestinationSystemId { get; init; }
+  public required Vector3 DestinationPosition { get; init; }
+}
+
+public sealed class DefaultBehaviorRuntime
+{
+  public required string Kind { get; set; }
+  public string? AreaSystemId { get; set; }
+  public string? RefineryId { get; set; }
+  public string? NodeId { get; set; }
+  public string? Phase { get; set; }
+  public List<Vector3> PatrolPoints { get; set; } = [];
+  public int PatrolIndex { get; set; }
+}
+
+public sealed class ControllerTaskRuntime
+{
+  public required string Kind { get; set; }
+  public string? TargetEntityId { get; set; }
+  public string? TargetSystemId { get; set; }
+  public Vector3? TargetPosition { get; set; }
+  public float Threshold { get; set; }
+}
+
+public readonly record struct Vector3(float X, float Y, float Z)
+{
+  public static Vector3 Zero => new(0f, 0f, 0f);
+
+  public float DistanceTo(Vector3 other)
+  {
+    var dx = X - other.X;
+    var dy = Y - other.Y;
+    var dz = Z - other.Z;
+    return MathF.Sqrt((dx * dx) + (dy * dy) + (dz * dz));
+  }
+
+  public Vector3 MoveToward(Vector3 target, float maxDistance)
+  {
+    var distance = DistanceTo(target);
+    if (distance <= maxDistance || distance <= 0.0001f)
+    {
+      return target;
+    }
+
+    var t = maxDistance / distance;
+    return new Vector3(
+      X + ((target.X - X) * t),
+      Y + ((target.Y - Y) * t),
+      Z + ((target.Z - Z) * t));
+  }
+}