новая структура проекта

src/scenes/preview/adt_tile_preview.gd

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+@tool
+## Editor-time preview for a single ADT tile.
+extends Node3D
+
+const PREVIEW_NODE_NAME := "__adt_tile_preview__"
+const ADT_BUILDER_SCRIPT := preload("res://addons/mpq_extractor/loaders/adt_builder.gd")
+
+@export var extracted_dir: String = "res://data/extracted"
+@export var map_name: String = "Azeroth"
+@export var tile_x: int = 32
+@export var tile_y: int = 48
+@export var auto_rebuild_in_editor: bool = true
+@export var reload_now: bool = false
+
+var _last_signature := ""
+var _rebuild_queued := false
+
+
+func _ready() -> void:
+	set_process(true)
+	_queue_rebuild()
+
+
+func _process(_delta: float) -> void:
+	if reload_now:
+		reload_now = false
+		_queue_rebuild()
+
+	if Engine.is_editor_hint() and auto_rebuild_in_editor:
+		var current_signature := _make_signature()
+		if current_signature != _last_signature:
+			_queue_rebuild()
+
+
+func _queue_rebuild() -> void:
+	if _rebuild_queued or not is_inside_tree():
+		return
+	_rebuild_queued = true
+	call_deferred("_rebuild_preview")
+
+
+func _rebuild_preview() -> void:
+	_rebuild_queued = false
+	_clear_preview()
+	_last_signature = _make_signature()
+
+	if not ClassDB.class_exists("ADTLoader"):
+		push_warning("ADTLoader not found. Rebuild GDExtension first.")
+		return
+
+	var abs_extracted := ProjectSettings.globalize_path(extracted_dir)
+	var adt_path := "%s/World/Maps/%s/%s_%d_%d.adt" % [
+		abs_extracted, map_name, map_name, tile_x, tile_y
+	]
+
+	if not FileAccess.file_exists(adt_path):
+		push_warning("ADT not found: %s" % adt_path)
+		return
+
+	var loader = ClassDB.instantiate("ADTLoader")
+	var data: Dictionary = loader.call("load_adt", adt_path)
+	if data.is_empty() or not data.has("chunks"):
+		push_warning("Failed to load ADT: %s" % adt_path)
+		return
+
+	var builder := ADT_BUILDER_SCRIPT.new()
+	var terrain: Node3D = builder.build_scene(data, abs_extracted)
+	terrain.name = PREVIEW_NODE_NAME
+	add_child(terrain)
+
+
+func _clear_preview() -> void:
+	var preview := get_node_or_null(PREVIEW_NODE_NAME)
+	if preview:
+		remove_child(preview)
+		preview.free()
+
+
+func _make_signature() -> String:
+	return "%s|%s|%d|%d" % [extracted_dir, map_name, tile_x, tile_y]

src/scenes/preview/adt_tile_preview.gd.uid

@@ -0,0 +1 @@
+uid://cacewewk7xgw4

src/scenes/preview/adt_tile_preview.tscn

@@ -0,0 +1,30 @@
+[gd_scene format=3 uid="uid://cbgbp30flxdgx"]
+
+[ext_resource type="Script" uid="uid://cacewewk7xgw4" path="res://src/scenes/preview/adt_tile_preview.gd" id="1_preview"]
+[ext_resource type="Script" uid="uid://bauggobg40psr" path="res://src/scenes/camera/fly_camera.gd" id="2_flycam"]
+
+[sub_resource type="Sky" id="sky_1"]
+
+[sub_resource type="Environment" id="env_1"]
+background_mode = 2
+sky = SubResource("sky_1")
+ambient_light_source = 3
+ambient_light_color = Color(1, 1, 1, 1)
+ambient_light_energy = 0.5
+
+[node name="ADTTilePreview" type="Node3D" unique_id=623058517]
+script = ExtResource("1_preview")
+
+[node name="Camera3D" type="Camera3D" parent="." unique_id=597499101]
+transform = Transform3D(1, 0, 0, 0, 0.906308, 0.422618, 0, -0.422618, 0.906308, 18.5112, 168.016, 111.689)
+current = true
+far = 20000.0
+script = ExtResource("2_flycam")
+
+[node name="Sun" type="DirectionalLight3D" parent="." unique_id=697026372]
+transform = Transform3D(0.866025, -0.353553, 0.353553, 0, 0.707107, 0.707107, -0.5, -0.612372, 0.612372, 0, 0, 0)
+light_energy = 1.5
+shadow_enabled = true
+
+[node name="WorldEnvironment" type="WorldEnvironment" parent="." unique_id=1785163215]
+environment = SubResource("env_1")