Revamp floor tiling system with auto-tile solution

.gitattributes

@@ -5,3 +5,5 @@
 *.ttf filter=lfs diff=lfs merge=lfs -text
 *.scn filter=lfs diff=lfs merge=lfs -text
 *.res filter=lfs diff=lfs merge=lfs -text
+*.glb filter=lfs diff=lfs merge=lfs -text
+

interior/floors/dungeon_01/detail_albedo.png.import

@@ -2,8 +2,8 @@
 
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-uid="uid://3m7gvnsmb4g"
+uid="uid://chujdd7dvyclj"
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@@ -11,8 +11,8 @@ metadata={
 
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-source_file="res://interior/tiles/limestone_dungeon/hole_albedo.png"
+source_file="res://interior/floors/dungeon_01/detail_albedo.png"
-dest_files=["res://.godot/imported/hole_albedo.png-ef88dfc602c85c58e849d6654804eb67.s3tc.ctex"]
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 [params]
 

interior/floors/dungeon_01/detail_displacement.png.import

@@ -0,0 +1,35 @@
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+dest_files=["res://.godot/imported/detail_displacement.png-47cde77fb53fc7ae6babfbbfef6cdb4f.s3tc.ctex"]
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+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=true
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=0

interior/floors/dungeon_01/detail_normal.png.import

@@ -2,8 +2,8 @@
 
 importer="texture"
 type="CompressedTexture2D"
-uid="uid://c4eby3i7q2wts"
+uid="uid://waqtv8flqslo"
-path.s3tc="res://.godot/imported/hole_normal.png-9c2f1eac05804bab609d1c67adcf7dba.s3tc.ctex"
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@@ -11,8 +11,8 @@ metadata={
 
 [deps]
 
-source_file="res://interior/tiles/limestone_dungeon/hole_normal.png"
+source_file="res://interior/floors/dungeon_01/detail_normal.png"
-dest_files=["res://.godot/imported/hole_normal.png-9c2f1eac05804bab609d1c67adcf7dba.s3tc.ctex"]
+dest_files=["res://.godot/imported/detail_normal.png-7595efd28a96c6bf905bfa3c115551eb.s3tc.ctex"]
 
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@@ -25,7 +25,7 @@ compress/channel_pack=0
 mipmaps/generate=true
 mipmaps/limit=-1
 roughness/mode=1
-roughness/src_normal="res://tiles/tiles/limestone_dungeon/hole_normal.png"
+roughness/src_normal="res://interior/base/dungeon_01/detail_normal.png"
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/normal_map_invert_y=false

interior/floors/dungeon_01/detail_roughness.png.import

@@ -2,8 +2,8 @@
 
 importer="texture"
 type="CompressedTexture2D"
-uid="uid://bkpucv0ydae5v"
+uid="uid://drq7jupbmwjil"
-path.s3tc="res://.godot/imported/piping_orm.png-7131df07403ecb346d6a4793ca7929cb.s3tc.ctex"
+path.s3tc="res://.godot/imported/detail_roughness.png-a65497af25f070db34e2dc4c6cdc9e62.s3tc.ctex"
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 "vram_texture": true
@@ -11,8 +11,8 @@ metadata={
 
 [deps]
 
-source_file="res://interior/tiles/limestone_dungeon/piping_orm.png"
+source_file="res://interior/floors/dungeon_01/detail_roughness.png"
-dest_files=["res://.godot/imported/piping_orm.png-7131df07403ecb346d6a4793ca7929cb.s3tc.ctex"]
+dest_files=["res://.godot/imported/detail_roughness.png-a65497af25f070db34e2dc4c6cdc9e62.s3tc.ctex"]
 
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interior/floors/dungeon_01/floor_albedo.png.import

@@ -2,8 +2,8 @@
 
 importer="texture"
 type="CompressedTexture2D"
-uid="uid://leoab2fjmxgk"
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-path.s3tc="res://.godot/imported/tiling_orm.png-48bc1a5d8b2eae43d49ed818fa664d0d.s3tc.ctex"
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@@ -11,8 +11,8 @@ metadata={
 
 [deps]
 
-source_file="res://interior/tiles/limestone_dungeon/tiling_orm.png"
+source_file="res://interior/floors/dungeon_01/floor_albedo.png"
-dest_files=["res://.godot/imported/tiling_orm.png-48bc1a5d8b2eae43d49ed818fa664d0d.s3tc.ctex"]
+dest_files=["res://.godot/imported/floor_albedo.png-599373c4c817157e929da39c9a51e0ca.s3tc.ctex"]
 
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interior/floors/dungeon_01/floor_displacement.png.import

@@ -2,8 +2,8 @@
 
 importer="texture"
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+uid="uid://dfqtk4fo4t06c"
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@@ -11,8 +11,8 @@ metadata={
 
 [deps]
 
-source_file="res://interior/tiles/limestone_dungeon/piping_albedo.png"
+source_file="res://interior/floors/dungeon_01/floor_displacement.png"
-dest_files=["res://.godot/imported/piping_albedo.png-e55409f9baf27938796d954b957086ac.s3tc.ctex"]
+dest_files=["res://.godot/imported/floor_displacement.png-f55e2b97692cdec8c2f27530099f39e7.s3tc.ctex"]
 
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interior/floors/dungeon_01/floor_normal.png.import

@@ -2,8 +2,8 @@
 
 importer="texture"
 type="CompressedTexture2D"
-uid="uid://bypqkn1tm036p"
+uid="uid://tjepq8p30cxx"
-path.s3tc="res://.godot/imported/piping_normal.png-4b6b5fc6d6cbc5e05f054f9e19463644.s3tc.ctex"
+path.s3tc="res://.godot/imported/floor_normal.png-7eb4d134761af85dcd1aaa7f0004dc65.s3tc.ctex"
 metadata={
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 "vram_texture": true
@@ -11,8 +11,8 @@ metadata={
 
 [deps]
 
-source_file="res://interior/tiles/limestone_dungeon/piping_normal.png"
+source_file="res://interior/floors/dungeon_01/floor_normal.png"
-dest_files=["res://.godot/imported/piping_normal.png-4b6b5fc6d6cbc5e05f054f9e19463644.s3tc.ctex"]
+dest_files=["res://.godot/imported/floor_normal.png-7eb4d134761af85dcd1aaa7f0004dc65.s3tc.ctex"]
 
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@@ -25,7 +25,7 @@ compress/channel_pack=0
 mipmaps/generate=true
 mipmaps/limit=-1
 roughness/mode=1
-roughness/src_normal="res://tiles/tiles/limestone_dungeon/piping_normal.png"
+roughness/src_normal="res://interior/base/dungeon_01/floor_normal.png"
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/normal_map_invert_y=false

interior/floors/dungeon_01/floor_orm.png.import

@@ -2,8 +2,8 @@
 
 importer="texture"
 type="CompressedTexture2D"
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+uid="uid://gry3ow88pjud"
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+path.s3tc="res://.godot/imported/floor_orm.png-ad734700b85932ea8fe8e780643641b4.s3tc.ctex"
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@@ -11,8 +11,8 @@ metadata={
 
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-source_file="res://interior/tiles/limestone_dungeon/hole_orm.png"
+source_file="res://interior/floors/dungeon_01/floor_orm.png"
-dest_files=["res://.godot/imported/hole_orm.png-00b1427da2cca528c854a97655dfff24.s3tc.ctex"]
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interior/floors/dungeon_01/pillar_albedo.png.import

@@ -2,8 +2,8 @@
 
 importer="texture"
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 metadata={
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@@ -11,8 +11,8 @@ metadata={
 
 [deps]
 
-source_file="res://interior/tiles/limestone_dungeon/hole_height.png"
+source_file="res://interior/floors/dungeon_01/pillar_albedo.png"
-dest_files=["res://.godot/imported/hole_height.png-875fd265b9470b3f52656ba603fc8eae.s3tc.ctex"]
+dest_files=["res://.godot/imported/pillar_albedo.png-5307fa2f26f1bff72deafa48c97429c8.s3tc.ctex"]
 
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@@ -2,8 +2,8 @@
 
 importer="texture"
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@@ -11,8 +11,8 @@ metadata={
 
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-source_file="res://interior/tiles/limestone_dungeon/piping_height.png"
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-dest_files=["res://.godot/imported/piping_height.png-d458ffb714345b35977ee0de9b01359f.s3tc.ctex"]
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interior/floors/dungeon_01/pillar_normal.png.import

@@ -2,8 +2,8 @@
 
 importer="texture"
 type="CompressedTexture2D"
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@@ -11,8 +11,8 @@ metadata={
 
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 process/fix_alpha_border=true
 process/premult_alpha=false
 process/normal_map_invert_y=false

interior/floors/dungeon_01/pillar_roughness.png.import

@@ -0,0 +1,34 @@
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+"save_to_file/enabled": true,
+"save_to_file/make_streamable": "",
+"save_to_file/path": "res://interior/base/dungeon_01/tiles_path_horizontal.res"
+},
+"tiles_path_vertical": {
+"generate/lightmap_uv": 0,
+"generate/lods": 0,
+"generate/shadow_meshes": 0,
+"lods/normal_merge_angle": 60.0,
+"lods/normal_split_angle": 25.0,
+"save_to_file/enabled": true,
+"save_to_file/make_streamable": "",
+"save_to_file/path": "res://interior/base/dungeon_01/tiles_path_vertical.res"
+}
+}
+}
+gltf/embedded_image_handling=0

interior/floors/dungeon_01_tiles_height.png.import

@@ -3,7 +3,7 @@
 importer="texture"
 type="CompressedTexture2D"
 uid="uid://didp3nfacohwd"
-path.s3tc="res://.godot/imported/tiling_height.png-2ead72b43d4a6de847e50bcbd8e8c7f7.s3tc.ctex"
+path.s3tc="res://.godot/imported/dungeon_01_tiles_height.png-7733c18dddd7d5bf80deae891d3de52e.s3tc.ctex"
 metadata={
 "imported_formats": ["s3tc_bptc"],
 "vram_texture": true
@@ -11,8 +11,8 @@ metadata={
 
 [deps]
 
-source_file="res://interior/tiles/limestone_dungeon/tiling_height.png"
+source_file="res://interior/base/dungeon_01_tiles_height.png"
-dest_files=["res://.godot/imported/tiling_height.png-2ead72b43d4a6de847e50bcbd8e8c7f7.s3tc.ctex"]
+dest_files=["res://.godot/imported/dungeon_01_tiles_height.png-7733c18dddd7d5bf80deae891d3de52e.s3tc.ctex"]
 
 [params]
 

interior/floors/interior_floor.gd

@@ -0,0 +1,49 @@
+class_name InteriorFloor extends Resource
+
+@export
+var corner_north_east_mesh: Mesh = null
+
+@export
+var corner_north_west_mesh: Mesh = null
+
+@export
+var corner_south_east_mesh: Mesh = null
+
+@export
+var corner_south_west_mesh: Mesh = null
+
+@export
+var edge_east_mesh: Mesh = null
+
+@export
+var edge_north_mesh: Mesh = null
+
+@export
+var edge_south_mesh: Mesh = null
+
+@export
+var edge_west_mesh: Mesh = null
+
+@export
+var endcap_east_mesh: Mesh = null
+
+@export
+var endcap_north_mesh: Mesh = null
+
+@export
+var endcap_south_mesh: Mesh = null
+
+@export
+var endcap_west_mesh: Mesh = null
+
+@export
+var fill_mesh: Mesh = null
+
+@export
+var island_mesh: Mesh = null
+
+@export
+var path_horizontal_mesh: Mesh = null
+
+@export
+var path_vertical_mesh: Mesh = null

interior/interior_map.gd

@@ -2,173 +2,212 @@ class_name InteriorMap extends Node3D
 
 const _CHUNK_SIZE := 32
 
+const _HALF_PI := PI / 2
+
 const _GRID_ORIGIN := Vector2(0.5, 0.5)
 
 ##
-## Cardinal orientation referencing the direction of a tile.
 ##
+##
+enum FloorTile {
+	ISLAND,
+	ENDCAP_WEST,
+	ENDCAP_NORTH,
+	CORNER_NORTH_WEST,
+	ENDCAP_EAST,
+	PATH_HORIZONTAL,
+	CORNER_NORTH_EAST,
+	EDGE_NORTH,
+	ENDCAP_SOUTH,
+	CORNER_SOUTH_WEST,
+	PATH_VERTICAL,
+	EDGE_WEST,
+	CORNER_SOUTH_EAST,
+	EDGE_SOUTH,
+	EDGE_EAST,
+	FILL,
+}
+
 enum Orientation {
-	NORTH,
+	EAST = 2 ** 0,
-	EAST,
+	SOUTH = 2 ** 1,
-	SOUTH,
+	WEST = 2 ** 2,
-	WEST,
+	NORTH = 2 ** 3,
 }
 
 ##
 ## Baked block of meshes making up a segment of the grid.
 ##
 class Chunk:
-	var _floor_meshes: Array[Mesh] = []
+	var _coordinates := Vector2i.ZERO
 
-	var _floor_orientation := PackedInt32Array()
+	var _interior_map: InteriorMap = null
 
-	var _multi_mesh_instances: Array[MultiMeshInstance] = []
+	var _meshes_by_floor_tile: Array[Mesh] = []
 
-	var _wall_meshes: Array[Mesh] = []
+	var _renderable_by_floor_tile: Array[Renderable] = []
 
-	var _wall_orientation := PackedInt32Array()
+	func _init(interior_map: InteriorMap, coordinates: Vector2i) -> void:
+		_interior_map = interior_map
+		_coordinates = coordinates
 
-	func _init() -> void:
+		var floor_tile_count := FloorTile.size()
-		var buffer_size := _CHUNK_SIZE * _CHUNK_SIZE
 
-		_floor_meshes.resize(buffer_size)
+		_renderable_by_floor_tile.resize(floor_tile_count)
-		_floor_orientation.resize(buffer_size)
+		_meshes_by_floor_tile.resize(floor_tile_count)
-		_wall_meshes.resize(buffer_size)
-		_wall_orientation.resize(buffer_size)
 
 	##
 	## Invalidates the mesh block, re-baking its contents from the current mesh data set.
 	##
-	func invalidate(interior_map: InteriorMap, coordinate: Vector2i) -> void:
+	func invalidate() -> void:
-		# TODO: Once this is all lowered into native code, look for ways to parallelize the loops.
+		_renderable_by_floor_tile.fill(null)
-		for multi_mesh_instance in _multi_mesh_instances:
-			RenderingServer.free_rid(multi_mesh_instance._instance_rid)
-			RenderingServer.free_rid(multi_mesh_instance._multimesh_rid)
 
-		_multi_mesh_instances.clear()
+		var interior_floor := _interior_map.interior_floor
 
-		# Normalize mesh instance data for the chunk.
+		if interior_floor == null:
-		var transforms_by_mesh := {}
+			_meshes_by_floor_tile.fill(null)
-		var grid_size := interior_map.size
-		var half_pi := PI / 2
 
-		for i in _floor_meshes.size():
+		else:
-			var mesh := _floor_meshes[i]
+			_meshes_by_floor_tile[FloorTile.CORNER_NORTH_EAST] = interior_floor.corner_north_east_mesh
+			_meshes_by_floor_tile[FloorTile.CORNER_NORTH_WEST] = interior_floor.corner_north_west_mesh
+			_meshes_by_floor_tile[FloorTile.CORNER_SOUTH_EAST] = interior_floor.corner_south_east_mesh
+			_meshes_by_floor_tile[FloorTile.CORNER_SOUTH_WEST] = interior_floor.corner_south_west_mesh
+			_meshes_by_floor_tile[FloorTile.EDGE_EAST] = interior_floor.edge_east_mesh
+			_meshes_by_floor_tile[FloorTile.EDGE_NORTH] = interior_floor.edge_north_mesh
+			_meshes_by_floor_tile[FloorTile.EDGE_SOUTH] = interior_floor.edge_south_mesh
+			_meshes_by_floor_tile[FloorTile.EDGE_WEST] = interior_floor.edge_west_mesh
+			_meshes_by_floor_tile[FloorTile.ENDCAP_EAST] = interior_floor.endcap_east_mesh
+			_meshes_by_floor_tile[FloorTile.ENDCAP_NORTH] = interior_floor.endcap_north_mesh
+			_meshes_by_floor_tile[FloorTile.ENDCAP_SOUTH] = interior_floor.endcap_south_mesh
+			_meshes_by_floor_tile[FloorTile.ENDCAP_WEST] = interior_floor.endcap_west_mesh
+			_meshes_by_floor_tile[FloorTile.FILL] = interior_floor.fill_mesh
+			_meshes_by_floor_tile[FloorTile.ISLAND] = interior_floor.island_mesh
+			_meshes_by_floor_tile[FloorTile.PATH_HORIZONTAL] = interior_floor.path_horizontal_mesh
+			_meshes_by_floor_tile[FloorTile.PATH_VERTICAL] = interior_floor.path_vertical_mesh
+
+			var floor_map := _interior_map._floor_map
+			var map_size := _interior_map.size
+			var offset := _coordinates * _CHUNK_SIZE
+			var positions_by_floor_tile: Array[PackedVector2Array] = []
+
+			positions_by_floor_tile.resize(FloorTile.size())
+
+			# Find floor tile types.
+			for y in _CHUNK_SIZE:
+				for x in _CHUNK_SIZE:
+					if floor_map.get_bitv(offset + Vector2i(x, y)):
+						var tile := 0
+
+						for i in Orientation.values().size():
+							var delta_x := roundi(cos(i * PI / 2.0))
+							var delta_y := roundi(sin(i * PI / 2.0))
+
+							if (0 <= (y + int(delta_y < map_size.y))) and (0 <= (x + int(delta_x < map_size.x))):
+								tile += int(floor_map.get_bit(x + delta_x, y + delta_y)) * 2 ** i
+
+						positions_by_floor_tile[tile].append(Vector2(x, y))
+
+			# (Re)-bake tiles into multimesh instances for the chunk.
+			var scenario_rid := _interior_map.get_world_3d().scenario
+
+			for i in FloorTile.size():
+				var floor_positions := positions_by_floor_tile[i]
+
+				if not(floor_positions.is_empty()):
+					var mesh := _meshes_by_floor_tile[i]
 
 					if mesh != null:
-				if not(mesh in transforms_by_mesh):
+						var floor_position_count := floor_positions.size()
-					transforms_by_mesh[mesh] = []
+						var renderable := Renderable.new(scenario_rid, _meshes_by_floor_tile[i].get_rid(), floor_position_count)
 
-				transforms_by_mesh[mesh].append(Transform3D(
+						for j in floor_position_count:
-					Basis.IDENTITY.rotated(Vector3.UP, half_pi * _floor_orientation[i]), Vector3(
+							var tile_position := floor_positions[j]
-						(float(coordinate.x * _CHUNK_SIZE) + (i % _CHUNK_SIZE)) -
-							(float(grid_size.x) * _GRID_ORIGIN.x) + 0.5, 0.0,
-								(float(coordinate.y * _CHUNK_SIZE) + (i / _CHUNK_SIZE)) - 
-									(float(grid_size.y) * _GRID_ORIGIN.y) + 0.5)))
 
-		for i in _wall_meshes.size():
+							renderable.set_instance_transform(j, Transform3D(Basis.IDENTITY, Vector3(
-			var mesh := _wall_meshes[i]
+								((float(offset.x) + tile_position.x) - (float(map_size.x) * _GRID_ORIGIN.x)) + 0.5,
+									0.0,
+										((float(offset.y) + tile_position.y) - (float(map_size.y) * _GRID_ORIGIN.y)) + 0.5)))
 
-			if mesh != null:
+						_renderable_by_floor_tile[i] = renderable
-				if not(mesh in transforms_by_mesh):
-					transforms_by_mesh[mesh] = []
 
-				transforms_by_mesh[mesh].append(Transform3D(
+	func set_transform(transform: Transform3D) -> void:
-					Basis.IDENTITY.rotated(Vector3.UP, half_pi * _wall_orientation[i]), Vector3(
+		for renderable in _renderable_by_floor_tile:
-						(float(coordinate.x * _CHUNK_SIZE) + (i % _CHUNK_SIZE)) -
+			if renderable != null:
-							(float(grid_size.x) * _GRID_ORIGIN.x) + 0.5, 0.0,
+				renderable.set_transform(transform)
-								(float(coordinate.y * _CHUNK_SIZE) + (i / _CHUNK_SIZE)) - 
-									(float(grid_size.y) * _GRID_ORIGIN.y) + 0.5)))
 
-		# (Re)-bake into multimesh instances for the chunk.
+	func set_visible(visible: bool) -> void:
-		var scenario_rid := interior_map.get_world_3d().scenario
+		for renderable in _renderable_by_floor_tile:
-		var global_transform := interior_map.global_transform
+			if renderable != null:
-
+				renderable.set_visible(visible)
-		for chunk_mesh in transforms_by_mesh:
-			var multi_mesh_instance := MultiMeshInstance.new(
-				scenario_rid, chunk_mesh.get_rid(), transforms_by_mesh[chunk_mesh])
-
-			multi_mesh_instance.set_offset(global_transform)
-			_multi_mesh_instances.append(multi_mesh_instance)
-
-	##
-	## Sets the floor mesh in the chunk at the location relative [code]coordinatess[/code] to
-	## [code]mesh[/code].
-	##
-	## *Note* that [method Chunk.invalidate] must be called at some point after to visually update
-	## the chunk.
-	##
-	func set_floor_mesh(coordinates: Vector2i, orientation: Orientation, mesh: Mesh) -> void:
-		var index := (_CHUNK_SIZE * coordinates.y) + coordinates.x
-
-		_floor_orientation[index] = orientation
-		_floor_meshes[index] = mesh
-
-	##
-	## Sets the wall mesh in the chunk at the location relative [code]coordinatess[/code] to
-	## [code]mesh[/code].
-	##
-	## *Note* that [method Chunk.invalidate] must be called at some point after to visually update
-	## the chunk.
-	##
-	func set_wall_mesh(coordinates: Vector2i, orientation: Orientation, mesh: Mesh) -> void:
-		var index := (_CHUNK_SIZE * coordinates.y) + coordinates.x
-
-		_wall_orientation[index] = orientation
-		_wall_meshes[index] = mesh
 
 ##
-## Specialized multi-mesh instance convenience for use within the tile grid and its chunks.
 ##
-class MultiMeshInstance:
+##
+class Renderable:
 	var _instance_rid := RID()
 
 	var _multimesh_rid := RID()
 
-	func _init(scenario_rid: RID, mesh_rid: RID, transforms: Array) -> void:
+	func _init(scenario_rid: RID, mesh_rid: RID, transform_count: int) -> void:
 		_multimesh_rid = RenderingServer.multimesh_create()
 		_instance_rid = RenderingServer.instance_create2(_multimesh_rid, scenario_rid)
 
 		RenderingServer.multimesh_set_mesh(_multimesh_rid, mesh_rid)
 
-		var transform_count := transforms.size()
-
 		RenderingServer.multimesh_allocate_data(_multimesh_rid,
 			transform_count, RenderingServer.MULTIMESH_TRANSFORM_3D, true)
 
-		for i in transform_count:
+	func _notification(what: int) -> void:
-			RenderingServer.multimesh_instance_set_transform(_multimesh_rid, i, transforms[i])
+		match what:
+			NOTIFICATION_PREDELETE:
+				RenderingServer.free_rid(_instance_rid)
+				RenderingServer.free_rid(_multimesh_rid)
 
 	##
-	## Sets the transform of the instance to [code]offset[/code].
 	##
-	func set_offset(offset: Transform3D) -> void:
+	##
-		RenderingServer.instance_set_transform(_instance_rid, offset)
+	func set_instance_transform(instance_index: int, transform: Transform3D) -> void:
+		RenderingServer.multimesh_instance_set_transform(_multimesh_rid, instance_index, transform)
 
 	##
-	## Sets the visibility of the instance to [code]is_visible[/code].
 	##
-	func set_visible(is_visible: bool) -> void:
+	##
-		RenderingServer.instance_set_visible(_instance_rid, is_visible)
+	func set_visible(visible: bool) -> void:
+		RenderingServer.instance_set_visible(_instance_rid, visible)
+
+	##
+	##
+	##
+	func set_transform(transform: Transform3D) -> void:
+		RenderingServer.instance_set_transform(_instance_rid, transform)
 
 var _chunks: Array[Chunk] = []
 
 var _chunks_size := Vector2i.ZERO
 
+var _floor_map := BitMap.new()
+
+##
+##
+##
+@export
+var interior_floor: InteriorFloor = null
+
 ##
 ## Size of the tile grid (in engine units).
 ##
 @export
 var size: Vector2i:
 	set(value):
-		var chunk_size_factor := float(_CHUNK_SIZE)
-
-		_chunks.resize(int(ceilf(value.x / chunk_size_factor) * ceilf(value.y / chunk_size_factor)))
-
-		for i in _chunks.size():
-			_chunks[i] = Chunk.new()
-
 		_chunks_size = Vector2i((value / float(_CHUNK_SIZE)).ceil())
+
+		_floor_map.resize(value)
+		_chunks.resize(_chunks_size.x * _chunks_size.y)
+
+		for y in _chunks_size.y:
+			for x in _chunks_size.x:
+				_chunks[(y * _CHUNK_SIZE) + x] = Chunk.new(self, Vector2i(x, y))
+
 		size = value
 
 func _get_chunk(chunk_coordinate: Vector2i) -> Chunk:
@@ -178,13 +217,11 @@ func _notification(what: int) -> void:
 	match what:
 		NOTIFICATION_TRANSFORM_CHANGED:
 			for chunk in _chunks:
-				for multi_mesh_instance in chunk._multi_mesh_instances:
+				chunk.set_transform(global_transform)
-					multi_mesh_instance.set_offset_transform(global_transform)
 
 		NOTIFICATION_VISIBILITY_CHANGED:
 			for chunk in _chunks:
-				for multi_mesh_instance in chunk._multi_mesh_instances:
+				chunk.set_visible(visible)
-					multi_mesh_instance.set_visible(visible)
 
 ##
 ## Clears the entirety of the tile grid to only contain tiles of instance [code]tile[/code] pointing
@@ -192,42 +229,14 @@ func _notification(what: int) -> void:
 ##
 ## For clearing a specific region of the mesh grid, see [method fill_mesh].
 ##
-func clear_tiles(orientation: Orientation, tile: InteriorTile) -> void:
+func clear() -> void:
-	if tile == null:
 	for y in size.y:
 		for x in size.x:
-				var coordinates := Vector2i(x, y)
+			_floor_map.set_bit(x, y, false)
-				var chunk := _get_chunk(coordinates / _CHUNK_SIZE)
-				var chunk_coordinates := coordinates % _CHUNK_SIZE
-
-				chunk.set_floor_mesh(chunk_coordinates, orientation, null)
-				chunk.set_wall_mesh(chunk_coordinates, orientation, null)
-
-	else:
-		var mesh := tile.mesh
-
-		match tile.kind:
-			InteriorTile.Kind.FLOOR:
-				for y in size.y:
-					for x in size.x:
-						var coordinate := Vector2i(x, y)
-
-						_get_chunk(coordinate / _CHUNK_SIZE).\
-							set_floor_mesh(coordinate % _CHUNK_SIZE, orientation, mesh)
-
-			InteriorTile.Kind.WALL:
-				for y in size.y:
-					for x in size.x:
-						var coordinate := Vector2i(x, y)
-
-						_get_chunk(coordinate / _CHUNK_SIZE).\
-							set_floor_mesh(coordinate % _CHUNK_SIZE, orientation, mesh)
 
 	for y in _chunks_size.y:
 		for x in _chunks_size.x:
-			var chunk_coordinate := Vector2i(x, y)
+			_get_chunk(Vector2i(x, y)).invalidate()
-
-			_get_chunk(chunk_coordinate).invalidate(self, chunk_coordinate)
 
 ##
 ## Clears the region of the tile grid at [code]area[/code] to only contain instances of
@@ -239,66 +248,22 @@ func clear_tiles(orientation: Orientation, tile: InteriorTile) -> void:
 ##
 ## For clearing the whole of the mesh grid, see [method clear_mesh].
 ##
-func fill_tiles(area: Rect2i, orientation: Orientation, tile: InteriorTile) -> void:
+func fill_floor(area: Rect2i, exists: bool) -> void:
-	assert(get_area().encloses(area), "area must be within grid")
+	assert(Rect2i(Vector2i.ZERO, size).encloses(area), "area must be within grid")
 
 	var filled_chunks := BitMap.new()
 
 	filled_chunks.resize(_chunks_size)
 
-	if tile == null:
 	for y in range(area.position.y, area.end.y):
 		for x in range(area.position.x, area.end.x):
-				var coordinates := Vector2i(x, y)
+			_floor_map.set_bit(x, y, exists)
-				var chunk_coordinates := coordinates / _CHUNK_SIZE
+			filled_chunks.set_bitv(Vector2i(x, y) / _CHUNK_SIZE, true)
-				var chunk := _get_chunk(coordinates / _CHUNK_SIZE)
-				var local_coordinates := coordinates % _CHUNK_SIZE
-
-				chunk.set_floor_mesh(local_coordinates, orientation, null)
-				chunk.set_wall_mesh(local_coordinates, orientation, null)
-				filled_chunks.set_bitv(chunk_coordinates, true)
-
-	else:
-		var mesh := tile.mesh
-
-		if tile.fixed_orientation:
-			orientation = Orientation.NORTH
-
-		match tile.kind:
-			InteriorTile.Kind.FLOOR:
-				for y in range(area.position.y, area.end.y):
-					for x in range(area.position.x, area.end.x):
-						var coordinate := Vector2i(x, y)
-						var chunk_coordinate := coordinate / _CHUNK_SIZE
-
-						_get_chunk(chunk_coordinate).set_floor_mesh(
-							coordinate % _CHUNK_SIZE, orientation, mesh)
-
-						filled_chunks.set_bitv(chunk_coordinate, true)
-
-			InteriorTile.Kind.WALL:
-				for y in range(area.position.y, area.end.y):
-					for x in range(area.position.x, area.end.x):
-						var coordinate := Vector2i(x, y)
-						var chunk_coordinate := coordinate / _CHUNK_SIZE
-
-						_get_chunk(chunk_coordinate).set_wall_mesh(
-							coordinate % _CHUNK_SIZE, orientation, mesh)
-
-						filled_chunks.set_bitv(chunk_coordinate, true)
 
 	for y in _chunks_size.y:
 		for x in _chunks_size.x:
 			if filled_chunks.get_bit(x, y):
-				var chunk_coordinate := Vector2i(x, y)
+				_get_chunk(Vector2i(x, y)).invalidate()
-
-				_get_chunk(chunk_coordinate).invalidate(self, chunk_coordinate)
-
-##
-## Returns the area of the interior map based on its current size.
-##
-func get_area() -> Rect2i:
-	return Rect2i(Vector2i.ZERO, size)
 
 ##
 ## Plots a single tile at [code]coordinates[/code] to be an instance of [code]tile[/code] pointing
@@ -310,30 +275,7 @@ func get_area() -> Rect2i:
 ##
 ## For bulk-setting many meshes at once, see [method fill_mesh] and [method clear_mesh].
 ##
-func plot_tile(coordinates: Vector2i, orientation: Orientation, tile: InteriorTile) -> void:
+func plot_floor(coordinates: Vector2i, exists: bool) -> void:
-	assert(get_area().has_point(coordinates), "coordinate must be within grid")
+	assert(Rect2i(Vector2i.ZERO, size).has_point(coordinates), "coordinate must be within grid")
-
+	_floor_map.set_bitv(coordinates, exists)
-	var chunk_coordinates := coordinates / _CHUNK_SIZE
+	_get_chunk(coordinates / _CHUNK_SIZE).invalidate()
-	var chunk := _get_chunk(chunk_coordinates)
-
-	if tile == null:
-		var local_coordinates := coordinates % _CHUNK_SIZE
-
-		chunk.set_floor_mesh(local_coordinates, orientation, null)
-		chunk.set_wall_mesh(local_coordinates, orientation, null)
-		chunk.invalidate(self, chunk_coordinates)
-
-	else:
-		var mesh := tile.mesh
-
-		if tile.fixed_orientation:
-			orientation = Orientation.NORTH
-
-		match tile.kind:
-			InteriorTile.Kind.FLOOR:
-				chunk.set_floor_mesh(coordinates % _CHUNK_SIZE, orientation, mesh)
-				chunk.invalidate(self, chunk_coordinates)
-
-			InteriorTile.Kind.WALL:
-				chunk.set_wall_mesh(coordinates % _CHUNK_SIZE, orientation, mesh)
-				chunk.invalidate(self, chunk_coordinates)

interior/interior_tile.gd

@@ -1,29 +0,0 @@
-class_name InteriorTile extends Resource
-
-##
-## Identifier for the kind of interior tile.
-##
-enum Kind {
-	FLOOR,
-	WALL,
-}
-
-##
-## Flag for determining if the tile is affected by orientations specified in an [InteriorMap].
-##
-@export
-var fixed_orientation := false
-
-##
-## See [enum Kind].
-##
-## Interior tiles of different kinds will not conflict when placing them.
-##
-@export
-var kind := Kind.FLOOR
-
-##
-## Used to visualize the interior tile.
-##
-@export
-var mesh: Mesh = null

interior/tiles/limestone_dungeon/tiling_albedo.png.import

@@ -1,35 +0,0 @@
-[remap]
-
-importer="texture"
-type="CompressedTexture2D"
-uid="uid://bydc62557j2d0"
-path.s3tc="res://.godot/imported/tiling_albedo.png-1570a8acdedf3400258f8b15e49e5d5b.s3tc.ctex"
-metadata={
-"imported_formats": ["s3tc_bptc"],
-"vram_texture": true
-}
-
-[deps]
-
-source_file="res://interior/tiles/limestone_dungeon/tiling_albedo.png"
-dest_files=["res://.godot/imported/tiling_albedo.png-1570a8acdedf3400258f8b15e49e5d5b.s3tc.ctex"]
-
-[params]
-
-compress/mode=2
-compress/high_quality=false
-compress/lossy_quality=0.7
-compress/hdr_compression=1
-compress/normal_map=0
-compress/channel_pack=0
-mipmaps/generate=true
-mipmaps/limit=-1
-roughness/mode=0
-roughness/src_normal=""
-process/fix_alpha_border=true
-process/premult_alpha=false
-process/normal_map_invert_y=false
-process/hdr_as_srgb=false
-process/hdr_clamp_exposure=false
-process/size_limit=0
-detect_3d/compress_to=0