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.Junction.cs

@@ -0,0 +1,137 @@
+using System.Threading.Tasks;
+using Content.Shared.Maps;
+using Content.Shared.Procedural;
+using Content.Shared.Procedural.PostGeneration;
+using Content.Shared.Storage;
+using Robust.Shared.Map.Components;
+
+namespace Content.Server.Procedural.DungeonJob;
+
+public sealed partial class DungeonJob
+{
+    /// <summary>
+    /// <see cref="JunctionDunGen"/>
+    /// </summary>
+    private async Task PostGen(JunctionDunGen gen, Dungeon dungeon, HashSet<Vector2i> reservedTiles, Random random)
+    {
+        var tileDef = _tileDefManager[gen.Tile];
+        var contents = _prototype.Index(gen.Contents);
+
+        // N-wide junctions
+        foreach (var tile in dungeon.CorridorTiles)
+        {
+            if (!_anchorable.TileFree(_grid, tile, DungeonSystem.CollisionLayer, DungeonSystem.CollisionMask))
+                continue;
+
+            // Check each direction:
+            // - Check if immediate neighbors are free
+            // - Check if the neighbors beyond that are not free
+            // - Then check either side if they're slightly more free
+            var exteriorWidth = (int) Math.Floor(gen.Width / 2f);
+            var width = (int) Math.Ceiling(gen.Width / 2f);
+
+            for (var i = 0; i < 2; i++)
+            {
+                var isValid = true;
+                var neighborDir = (Direction) (i * 2);
+                var neighborVec = neighborDir.ToIntVec();
+
+                for (var j = -width; j <= width; j++)
+                {
+                    if (j == 0)
+                        continue;
+
+                    var neighbor = tile + neighborVec * j;
+
+                    // If it's an end tile then check it's occupied.
+                    if (j == -width ||
+                        j == width)
+                    {
+                        if (!HasWall(neighbor))
+                        {
+                            isValid = false;
+                            break;
+                        }
+
+                        continue;
+                    }
+
+                    // If we're not at the end tile then check it + perpendicular are free.
+                    if (!_anchorable.TileFree(_grid, neighbor, DungeonSystem.CollisionLayer, DungeonSystem.CollisionMask))
+                    {
+                        isValid = false;
+                        break;
+                    }
+
+                    var perp1 = tile + neighborVec * j + ((Direction) ((i * 2 + 2) % 8)).ToIntVec();
+                    var perp2 = tile + neighborVec * j + ((Direction) ((i * 2 + 6) % 8)).ToIntVec();
+
+                    if (!_anchorable.TileFree(_grid, perp1, DungeonSystem.CollisionLayer, DungeonSystem.CollisionMask))
+                    {
+                        isValid = false;
+                        break;
+                    }
+
+                    if (!_anchorable.TileFree(_grid, perp2, DungeonSystem.CollisionLayer, DungeonSystem.CollisionMask))
+                    {
+                        isValid = false;
+                        break;
+                    }
+                }
+
+                if (!isValid)
+                    continue;
+
+                // Check corners to see if either side opens up (if it's just a 1x wide corridor do nothing, needs to be a funnel.
+                foreach (var j in new [] {-exteriorWidth, exteriorWidth})
+                {
+                    var freeCount = 0;
+
+                    // Need at least 3 of 4 free
+                    for (var k = 0; k < 4; k++)
+                    {
+                        var cornerDir = (Direction) (k * 2 + 1);
+                        var cornerVec = cornerDir.ToIntVec();
+                        var cornerNeighbor = tile + neighborVec * j + cornerVec;
+
+                        if (_anchorable.TileFree(_grid, cornerNeighbor, DungeonSystem.CollisionLayer, DungeonSystem.CollisionMask))
+                        {
+                            freeCount++;
+                        }
+                    }
+
+                    if (freeCount < gen.Width)
+                        continue;
+
+                    // Valid!
+                    isValid = true;
+
+                    for (var x = -width + 1; x < width; x++)
+                    {
+                        var weh = tile + neighborDir.ToIntVec() * x;
+
+                        if (reservedTiles.Contains(weh))
+                            continue;
+
+                        _maps.SetTile(_gridUid, _grid, weh, _tile.GetVariantTile((ContentTileDefinition) tileDef, random));
+
+                        var coords = _maps.GridTileToLocal(_gridUid, _grid, weh);
+                        _entManager.SpawnEntitiesAttachedTo(coords, _entTable.GetSpawns(contents, random));
+                    }
+
+                    break;
+                }
+
+                if (isValid)
+                {
+                    await SuspendDungeon();
+
+                    if (!ValidateResume())
+                        return;
+                }
+
+                break;
+            }
+        }
+    }
+}