Visualized regions for NavMapControl (#31910)

* Atmospheric alerts computer

* Moved components, restricted access to them

* Minor tweaks

* The screen will now turn off when the computer is not powered

* Bug fix

* Adjusted label

* Updated to latest master version

* Initial commit

* Tidy up

* Add firelocks to the nav map

* Add nav map regions to atmos alerts computer

* Added support for multiple region overlay sets per grid

* Fixed issue where console values were not updating correctly

* Fixing merge conflict

* Fixing merge conflicts

* Finished all major features

* Removed station map regions (to be re-added in a separate PR)

* Improved clarity

* Adjusted the color saturation of the regions displayed on the atmos alerts computer

Content.Client/Pinpointer/NavMapSystem.cs

@@ -1,3 +1,4 @@
+using System.Linq;
 using Content.Shared.Pinpointer;
 using Robust.Shared.GameStates;
 
@@ -16,6 +17,7 @@ public sealed partial class NavMapSystem : SharedNavMapSystem
     {
         Dictionary<Vector2i, int[]> modifiedChunks;
         Dictionary<NetEntity, NavMapBeacon> beacons;
+        Dictionary<NetEntity, NavMapRegionProperties> regions;
 
         switch (args.Current)
         {
@@ -23,6 +25,8 @@ public sealed partial class NavMapSystem : SharedNavMapSystem
             {
                 modifiedChunks = delta.ModifiedChunks;
                 beacons = delta.Beacons;
+                regions = delta.Regions;
+
                 foreach (var index in component.Chunks.Keys)
                 {
                     if (!delta.AllChunks!.Contains(index))
@@ -35,6 +39,8 @@ public sealed partial class NavMapSystem : SharedNavMapSystem
             {
                 modifiedChunks = state.Chunks;
                 beacons = state.Beacons;
+                regions = state.Regions;
+
                 foreach (var index in component.Chunks.Keys)
                 {
                     if (!state.Chunks.ContainsKey(index))
@@ -47,13 +53,54 @@ public sealed partial class NavMapSystem : SharedNavMapSystem
                 return;
         }
 
+        // Update region data and queue new regions for flooding
+        var prevRegionOwners = component.RegionProperties.Keys.ToList();
+        var validRegionOwners = new List<NetEntity>();
+
+        component.RegionProperties.Clear();
+
+        foreach (var (regionOwner, regionData) in regions)
+        {
+            if (!regionData.Seeds.Any())
+                continue;
+
+            component.RegionProperties[regionOwner] = regionData;
+            validRegionOwners.Add(regionOwner);
+
+            if (component.RegionOverlays.ContainsKey(regionOwner))
+                continue;
+
+            if (component.QueuedRegionsToFlood.Contains(regionOwner))
+                continue;
+
+            component.QueuedRegionsToFlood.Enqueue(regionOwner);
+        }
+
+        // Remove stale region owners
+        var regionOwnersToRemove = prevRegionOwners.Except(validRegionOwners);
+
+        foreach (var regionOwnerRemoved in regionOwnersToRemove)
+            RemoveNavMapRegion(uid, component, regionOwnerRemoved);
+
+        // Modify chunks
         foreach (var (origin, chunk) in modifiedChunks)
         {
             var newChunk = new NavMapChunk(origin);
             Array.Copy(chunk, newChunk.TileData, chunk.Length);
             component.Chunks[origin] = newChunk;
+
+            // If the affected chunk intersects one or more regions, re-flood them
+            if (!component.ChunkToRegionOwnerTable.TryGetValue(origin, out var affectedOwners))
+                continue;
+
+            foreach (var affectedOwner in affectedOwners)
+            {
+                if (!component.QueuedRegionsToFlood.Contains(affectedOwner))
+                    component.QueuedRegionsToFlood.Enqueue(affectedOwner);
+            }
         }
 
+        // Refresh beacons
         component.Beacons.Clear();
         foreach (var (nuid, beacon) in beacons)
         {