Port 2V0-f window input and UI render command bridge

project/ui/ui_assets.gd

@@ -67,11 +67,37 @@ static func _load_uncached(assets_root: String, vpath: String) -> Texture2D:
 			if real != "":
 				break
 	if real == "":
-		return null
+		return _load_pack_image(rel)
 	if real.get_extension().to_lower() == "sub":
 		return _load_sub(real)
 	return _load_image_file(real)
 
+static func _load_pack_image(rel: String) -> Texture2D:
+	if not ClassDB.class_exists("Metin2Pack") or not Metin2Pack.is_ready():
+		return null
+	if not Metin2Pack.exists(rel):
+		return null
+	var ext := rel.get_extension().to_lower()
+	var image: Image
+	if ext == "dds":
+		if not ClassDB.class_exists("Metin2World"):
+			return null
+		var helper: Object = ClassDB.instantiate("Metin2World")
+		image = helper.call("load_dds", "pack://" + rel)
+		helper.free()
+	else:
+		var bytes: PackedByteArray = Metin2Pack.get_bytes(rel)
+		image = Image.new()
+		var err := ERR_FILE_UNRECOGNIZED
+		match ext:
+			"tga": err = image.load_tga_from_buffer(bytes)
+			"png": err = image.load_png_from_buffer(bytes)
+			"jpg", "jpeg": err = image.load_jpg_from_buffer(bytes)
+			"bmp": err = image.load_bmp_from_buffer(bytes)
+		if err != OK:
+			return null
+	return ImageTexture.create_from_image(image) if image != null and not image.is_empty() else null
+
 static func _load_image_file(path: String) -> Texture2D:
 	# .sub 文件可能引用了未随当前资源包发布的共享贴图（例如 Public.tga）。
 	# 先做存在性检查，避免 headless/UI fallback 因缺失可选贴图刷错误日志。