Revert biome rework (#38724)

* Revert "Fix world generation (#38713)"

This reverts commit 10fa6ff4af.

* Revert "Biome rework (#37735)"

This reverts commit fe7b96147c.

Content.Server/Procedural/DungeonJob/DungeonJob.BiomeMarkerLayer.cs

@@ -0,0 +1,105 @@
+using System.Threading.Tasks;
+using Content.Server.Parallax;
+using Content.Shared.Parallax.Biomes;
+using Content.Shared.Parallax.Biomes.Markers;
+using Content.Shared.Procedural;
+using Content.Shared.Procedural.PostGeneration;
+using Content.Shared.Random.Helpers;
+using Robust.Shared.Map;
+using Robust.Shared.Utility;
+
+namespace Content.Server.Procedural.DungeonJob;
+
+public sealed partial class DungeonJob
+{
+    /// <summary>
+    /// <see cref="BiomeMarkerLayerDunGen"/>
+    /// </summary>
+    private async Task PostGen(BiomeMarkerLayerDunGen dunGen, Dungeon dungeon, HashSet<Vector2i> reservedTiles, Random random)
+    {
+        // If we're adding biome then disable it and just use for markers.
+        if (_entManager.EnsureComponent(_gridUid, out BiomeComponent biomeComp))
+        {
+            biomeComp.Enabled = false;
+        }
+
+        var biomeSystem = _entManager.System<BiomeSystem>();
+        var weightedRandom = _prototype.Index(dunGen.MarkerTemplate);
+        var xformQuery = _entManager.GetEntityQuery<TransformComponent>();
+        var templates = new Dictionary<string, int>();
+
+        for (var i = 0; i < dunGen.Count; i++)
+        {
+            var template = weightedRandom.Pick(random);
+            var count = templates.GetOrNew(template);
+            count++;
+            templates[template] = count;
+        }
+
+        foreach (var (template, count) in templates)
+        {
+            var markerTemplate = _prototype.Index<BiomeMarkerLayerPrototype>(template);
+
+            var bounds = new Box2i();
+
+            foreach (var tile in dungeon.RoomTiles)
+            {
+                bounds = bounds.UnionTile(tile);
+            }
+
+            await SuspendDungeon();
+            if (!ValidateResume())
+                return;
+
+            biomeSystem.GetMarkerNodes(_gridUid, biomeComp, _grid, markerTemplate, true, bounds, count,
+                random, out var spawnSet, out var existing, false);
+
+            await SuspendDungeon();
+            if (!ValidateResume())
+                return;
+
+            var checkTile = reservedTiles.Count > 0;
+
+            foreach (var ent in existing)
+            {
+                if (checkTile && reservedTiles.Contains(_maps.LocalToTile(_gridUid, _grid, _xformQuery.GetComponent(ent).Coordinates)))
+                {
+                    continue;
+                }
+
+                _entManager.DeleteEntity(ent);
+
+                await SuspendDungeon();
+                if (!ValidateResume())
+                    return;
+            }
+
+            foreach (var (node, mask) in spawnSet)
+            {
+                if (reservedTiles.Contains(node))
+                    continue;
+
+                string? proto;
+
+                if (mask != null && markerTemplate.EntityMask.TryGetValue(mask, out var maskedProto))
+                {
+                    proto = maskedProto;
+                }
+                else
+                {
+                    proto = markerTemplate.Prototype;
+                }
+
+                var ent = _entManager.SpawnAtPosition(proto, new EntityCoordinates(_gridUid, node + _grid.TileSizeHalfVector));
+                var xform = xformQuery.Get(ent);
+
+                if (!xform.Comp.Anchored)
+                    _transform.AnchorEntity(ent, xform);
+
+                await SuspendDungeon();
+                if (!ValidateResume())
+                    return;
+            }
+        }
+    }
+}