Pathfinder rework (#11452)

Content.Shared/NPC/Events/HTNMessage.cs

@@ -0,0 +1,13 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.NPC;
+
+/// <summary>
+/// Has debug information for HTN NPCs.
+/// </summary>
+[Serializable, NetSerializable]
+public sealed class HTNMessage : EntityEventArgs
+{
+    public EntityUid Uid;
+    public string Text = string.Empty;
+}

Content.Shared/NPC/Events/PathBreadcrumbsMessage.cs

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+using Robust.Shared.Serialization;
+
+namespace Content.Shared.NPC;
+
+[Serializable, NetSerializable]
+public sealed class PathBreadcrumbsMessage : EntityEventArgs
+{
+    public Dictionary<EntityUid, Dictionary<Vector2i, List<PathfindingBreadcrumb>>> Breadcrumbs = new();
+}
+
+[Serializable, NetSerializable]
+public sealed class PathBreadcrumbsRefreshMessage : EntityEventArgs
+{
+    public EntityUid GridUid;
+    public Vector2i Origin;
+    public List<PathfindingBreadcrumb> Data = new();
+}
+
+[Serializable, NetSerializable]
+public sealed class PathPolysMessage : EntityEventArgs
+{
+    public Dictionary<EntityUid, Dictionary<Vector2i, Dictionary<Vector2i, List<DebugPathPoly>>>> Polys = new();
+}

Content.Shared/NPC/Events/PathPolysRefreshMessage.cs

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+using Robust.Shared.Serialization;
+
+namespace Content.Shared.NPC;
+
+[Serializable, NetSerializable]
+public sealed class PathPolysRefreshMessage : EntityEventArgs
+{
+    public EntityUid GridUid;
+    public Vector2i Origin;
+
+    /// <summary>
+    /// Multi-dimension arrays aren't supported so
+    /// </summary>
+    public Dictionary<Vector2i, List<DebugPathPoly>> Polys = new();
+}

Content.Shared/NPC/Events/PathRouteMessage.cs

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+using Robust.Shared.Serialization;
+
+namespace Content.Shared.NPC;
+
+/// <summary>
+/// Debug message containing a pathfinding route.
+/// </summary>
+[Serializable, NetSerializable]
+public sealed class PathRouteMessage : EntityEventArgs
+{
+    public List<DebugPathPoly> Path;
+    public Dictionary<DebugPathPoly, float> Costs;
+
+    public PathRouteMessage(List<DebugPathPoly> path, Dictionary<DebugPathPoly, float> costs)
+    {
+        Path = path;
+        Costs = costs;
+    }
+}

Content.Shared/NPC/Events/RequestPathfindingDebugMessage.cs

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+using Robust.Shared.Serialization;
+
+namespace Content.Shared.NPC;
+
+[Serializable, NetSerializable]
+public sealed class RequestPathfindingDebugMessage : EntityEventArgs
+{
+    public PathfindingDebugMode Mode;
+}