DungeonData rework (#37172)

* DungeonData rework

Back to fields, serializes better, just make new layers dumby.

* wawawewa

* Fix this

* Fixes

* review

* thanks fork

* fix

Content.Server/Procedural/DungeonJob/DungeonJob.Biome.cs

@@ -0,0 +1,74 @@
+using System.Threading.Tasks;
+using Content.Server.Parallax;
+using Content.Shared.Maps;
+using Content.Shared.Parallax.Biomes;
+using Content.Shared.Procedural;
+using Content.Shared.Procedural.PostGeneration;
+using Robust.Shared.Map;
+using Robust.Shared.Utility;
+
+namespace Content.Server.Procedural.DungeonJob;
+
+public sealed partial class DungeonJob
+{
+    /// <summary>
+    /// <see cref="BiomeDunGen"/>
+    /// </summary>
+    private async Task PostGen(BiomeDunGen dunGen, Dungeon dungeon, HashSet<Vector2i> reservedTiles, Random random)
+    {
+        if (!_prototype.TryIndex(dunGen.BiomeTemplate, out var indexedBiome))
+            return;
+
+        var biomeSystem = _entManager.System<BiomeSystem>();
+
+        var seed = random.Next();
+        var xformQuery = _entManager.GetEntityQuery<TransformComponent>();
+
+        var tiles = _maps.GetAllTilesEnumerator(_gridUid, _grid);
+        while (tiles.MoveNext(out var tileRef))
+        {
+            var node = tileRef.Value.GridIndices;
+
+            if (reservedTiles.Contains(node))
+                continue;
+
+            if (dunGen.TileMask is not null)
+            {
+                if (!dunGen.TileMask.Contains(((ContentTileDefinition) _tileDefManager[tileRef.Value.Tile.TypeId]).ID))
+                    continue;
+            }
+
+            // Need to set per-tile to override data.
+            if (biomeSystem.TryGetTile(node, indexedBiome.Layers, seed, _grid, out var tile))
+            {
+                _maps.SetTile(_gridUid, _grid, node, tile.Value);
+            }
+
+            if (biomeSystem.TryGetDecals(node, indexedBiome.Layers, seed, _grid, out var decals))
+            {
+                foreach (var decal in decals)
+                {
+                    _decals.TryAddDecal(decal.ID, new EntityCoordinates(_gridUid, decal.Position), out _);
+                }
+            }
+
+            if (biomeSystem.TryGetEntity(node, indexedBiome.Layers, tile ?? tileRef.Value.Tile, seed, _grid, out var entityProto))
+            {
+                var ent = _entManager.SpawnEntity(entityProto, new EntityCoordinates(_gridUid, node + _grid.TileSizeHalfVector));
+                var xform = xformQuery.Get(ent);
+
+                if (!xform.Comp.Anchored)
+                {
+                    _transform.AnchorEntity(ent, xform);
+                }
+
+                // TODO: Engine bug with SpawnAtPosition
+                DebugTools.Assert(xform.Comp.Anchored);
+            }
+
+            await SuspendDungeon();
+            if (!ValidateResume())
+                return;
+        }
+    }
+}