Add map clearing, handle cells without visible polys, add lighting

project/code/LGS/Database/Chunks/WorldRep.cs

@@ -144,7 +144,7 @@ public class WorldRep : IChunk
         public int LightIndexCount { get; set; }
         public ushort[] LightIndices { get; set; }
 
-        public Cell(BinaryReader reader)
+        public Cell(BinaryReader reader, int bpp)
         {
             VertexCount = reader.ReadByte();
             PolyCount = reader.ReadByte();
@@ -199,7 +199,6 @@ public class WorldRep : IChunk
             for (var i = 0; i < RenderPolyCount; i++)
             {
                 var info = LightList[i];
-                var bpp = 4; // TODO: WREXT only!
                 Lightmaps[i] = new Lightmap(reader, info.Width, info.Height, info.AnimLightBitmask, bpp);
             }
             LightIndexCount = reader.ReadInt32();
@@ -218,10 +217,12 @@ public class WorldRep : IChunk
     public void ReadData(BinaryReader reader, DbFile.TableOfContents.Entry entry)
     {
         DataHeader = new(reader);
+        var bpp = (DataHeader.LightmapFormat == 0) ? 2 : 4;
+
         Cells = new Cell[DataHeader.CellCount];
         for (var i = 0; i < DataHeader.CellCount; i++)
         {
-            Cells[i] = new Cell(reader);
+            Cells[i] = new Cell(reader, bpp);
         }
 
         // TODO: All the other info lol

project/code/LGS/Database/File.cs

@@ -96,8 +96,8 @@ public class DbFile
     {
         return entryName switch
         {
-            "AI_ROOM_DB" => new AiRoomDb(),
-            "AICONVERSE" => new AiConverseChunk(),
+            // "AI_ROOM_DB" => new AiRoomDb(),
+            // "AICONVERSE" => new AiConverseChunk(),
             "WREXT" => new WorldRep(),
             _ => new GenericChunk(),
         };

project/code/Mission.cs

@@ -15,6 +15,8 @@ public partial class Mission : Node3D
 	public string FileName { get; set; }
 	[Export]
 	public bool Build = false;
+	[Export]
+	public bool Clear = false;
 
 
 	DbFile _file;
@@ -31,6 +33,11 @@ public partial class Mission : Node3D
 			RebuildMap();
 			Build = false;
 		}
+		if (Clear)
+		{
+			ClearMap();
+			Clear = false;
+		}
 	}
 
 	public override void _Input(InputEvent @event)
@@ -44,12 +51,17 @@ public partial class Mission : Node3D
 		}
 	}
 
-	public void RebuildMap()
+	public void ClearMap()
 	{
 		foreach (var node in GetChildren())
 		{
 			node.QueueFree();
 		}
+	}
+
+	public void RebuildMap()
+	{
+		ClearMap();
 
 		_file = new(FileName);
 		var wr = (WorldRep)_file.Chunks["WREXT"];
@@ -66,6 +78,11 @@ public partial class Mission : Node3D
 		var numRenderPolys = cell.RenderPolyCount;
 		var numPortalPolys = cell.PortalPolyCount;
 
+		if (numRenderPolys == 0 || numPortalPolys >= numPolys)
+		{
+			return;
+		}
+
 		var vertices = new List<Vector3>();
 		var normals = new List<Vector3>();
 		var idxOffset = 0;
@@ -86,13 +103,10 @@ public partial class Mission : Node3D
 			for (int j = 1; j < numPolyVertices - 1; j++)
 			{
 				foreach (var offset in new int[] { 0, j, j + 1 })
-				// foreach (var offset in new int[] { j + 1, j, 0 })
 				{
 					var vertex = cell.Vertices[cell.Indices[idxOffset + offset]];
 					vertices.Add(vertex.ToGodotVec3(4.0f));
 					normals.Add(normal.ToGodotVec3(4.0f));
-					// vertices.Add(new Vector3(vertex.Y, vertex.Z, vertex.X));
-					// normals.Add(new Vector3(normal.Y, normal.Z, normal.X));
 				}
 			}
 
@@ -111,7 +125,17 @@ public partial class Mission : Node3D
 			Mesh = arrMesh,
 			CastShadow = GeometryInstance3D.ShadowCastingSetting.On
 		};
-
 		AddChild(meshInstance);
+
+		var r = new Random();
+		if (r.NextSingle() > 0.9 && cell.SphereRadius > 5.0)
+		{
+			var light = new OmniLight3D
+			{
+				Position = cell.SphereCenter.ToGodotVec3(4.0f),
+				OmniRange = cell.SphereRadius * (r.NextSingle() + 1.0f) * 0.5f,
+			};
+			AddChild(light);
+		}
 	}
 }

project/scenes/main.tscn

@@ -9,17 +9,10 @@
 
 [node name="Mission" type="Node3D" parent="."]
 script = ExtResource("1_xhqt7")
-FileName = "/home/jarrod/Dev/thief/de-specs/test_data/wr-test.cow"
+FileName = "/home/jarrod/Dev/thief/de-specs/test_data/rose-garden.mis"
 
 [node name="Camera3D" type="Camera3D" parent="."]
 script = ExtResource("2_w5otl")
 
 [node name="WorldEnvironment" type="WorldEnvironment" parent="."]
 environment = SubResource("Environment_oxkvl")
-
-[node name="OmniLight3D" type="OmniLight3D" parent="."]
-shadow_enabled = true
-
-[node name="OmniLight3D3" type="OmniLight3D" parent="."]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -0.509499, 0.98353, 1.1662)
-shadow_enabled = true