Fix 40250 classic login and world loading

project/game_scene.gd

@@ -121,6 +121,11 @@ func setup(m2client: Node, assets_root: String,
 		map_path: String = "OutdoorA1/metin2_map_a1") -> void:
 	client = m2client
 	_assets = assets_root
+	# GC_MAIN_CHARACTER only carries the server-space coordinates, not the map
+	# folder.  The old fixed A1 fallback puts characters from A2/A3 outside the
+	# rendered terrain, which looks like an empty map.  Resolve the map from the
+	# character position before constructing Metin2World.
+	map_path = _resolve_map_path(map_path)
 	_build_lighting()
 	# 关键：setup 是协程。每个重活之间让出一帧，好让 M2Client._process 抽 socket
 	# （否则整段 ~5s 同步阻塞会漏 PONG → 服务器 10s 后 "peer closed"）。
@@ -672,6 +677,87 @@ func _map_loaded() -> bool:
 	var rep: Dictionary = world.call("get_load_report")
 	return int(rep.get("map_size_x", 0)) > 0
 
+func _resolve_map_path(requested: String) -> String:
+	if client == null or _assets == "" or not client.has_method("get_main_vid"):
+		return requested
+	var vid := int(client.get_main_vid())
+	if vid == 0 or not client.has_method("get_entity"):
+		return requested
+	var entity: Dictionary = client.get_entity(vid)
+	var pos: Variant = entity.get("pos_cm", null)
+	if not (pos is Vector3):
+		return requested
+
+	var settings: Array[String] = []
+	_collect_map_settings(_assets, settings)
+	var best := requested
+	var best_score := 1000000
+	for setting_path: String in settings:
+		var bounds := _map_bounds(setting_path)
+		if bounds.is_empty():
+			continue
+		var base: Vector2 = bounds["base"]
+		var size: Vector2i = bounds["size"]
+		var max_x := base.x + float(size.x) * 25600.0
+		var max_y := base.y + float(size.y) * 25600.0
+		if pos.x < base.x or pos.x >= max_x or pos.y < base.y or pos.y >= max_y:
+			continue
+		var root := _assets.trim_suffix("/")
+		var rel_setting := setting_path.substr(root.length() + 1)
+		var candidate := rel_setting.get_base_dir()
+		var lower := candidate.to_lower()
+		# Prefer the normal outdoor map over duplicate patch/season copies when
+		# several map packages advertise the same world-space rectangle.
+		var score := candidate.split("/").size()
+		if lower.begins_with("outdoor"):
+			score -= 20
+		if lower.begins_with("season") or lower.begins_with("metin2_patch"):
+			score += 20
+		if candidate == requested:
+			score -= 1000
+		if score < best_score:
+			best_score = score
+			best = candidate
+
+	if best != requested:
+		print("[GameScene] map resolved by server position ", pos, " -> ", best)
+	return best
+
+func _collect_map_settings(dir_path: String, out: Array[String]) -> void:
+	var dir := DirAccess.open(dir_path)
+	if dir == null:
+		return
+	for file_name: String in dir.get_files():
+		if file_name.to_lower() == "setting.txt":
+			out.append(dir_path.path_join(file_name))
+	for child: String in dir.get_directories():
+		if child in [".godot", ".git", "build", "export"]:
+			continue
+		_collect_map_settings(dir_path.path_join(child), out)
+
+func _map_bounds(setting_path: String) -> Dictionary:
+	var f := FileAccess.open(setting_path, FileAccess.READ)
+	if f == null:
+		return {}
+	var base := Vector2.ZERO
+	var size := Vector2i.ZERO
+	var have_base := false
+	var have_size := false
+	while not f.eof_reached():
+		var fields := f.get_line().replace("\t", " ").strip_edges().split(" ", false)
+		if fields.size() < 3:
+			continue
+		match String(fields[0]).to_lower():
+			"baseposition":
+				base = Vector2(float(fields[1]), float(fields[2]))
+				have_base = true
+			"mapsize":
+				size = Vector2i(int(fields[1]), int(fields[2]))
+				have_size = size.x > 0 and size.y > 0
+	if not have_base or not have_size:
+		return {}
+	return {"base": base, "size": size}
+
 func _build_lighting() -> void:
 	var sun := DirectionalLight3D.new()
 	sun.name = "FallbackSun"