# GameScene (P0，简版) —— 进游戏后的场景装配。
#
# 把已有的件拼成一个能玩的场景：
#   Metin2World + 本地玩家 + GameCamera + PlayerController + NetWorld + HUD
#   + NetPlay（胶水）+ Audio
#
# 由 login.gd 在 entered_game 时实例化：
#   var gs := preload("res://game_scene.gd").new()
#   get_root().add_child(gs)
#   gs.setup(m2client, assets_root)          # map_path 可选，默认 a1
#
# P0 本地玩家用占位胶囊；P2 装备系统落地后换真 Metin2Model（见 set_player_model）。
extends Node3D

const GameCamera = preload("res://game_camera.gd")
const PlayerCtl = preload("res://player_controller.gd")
const NetWorld = preload("res://net_world.gd")
const NetPlay = preload("res://net_play.gd")
const Hud = preload("res://hud.gd")
const UiProfile = preload("res://ui/ui_profile.gd")
const MobileUiRoot = preload("res://ui/mobile/mobile_ui_root.gd")
const Audio = preload("res://audio.gd")
const BgmDirector = preload("res://bgm_director.gd")
const UiManager = preload("res://ui/ui_manager.gd")
const CursorManager = preload("res://ui/cursor_manager.gd")
const MouseController = preload("res://ui/mouse_controller.gd")
const InventoryUI = preload("res://ui/inventory_ui.gd")
const ItemListDB = preload("res://ui/item_list.gd")
const EquipModel = preload("res://ui/equip_model.gd")
const PlayerView = preload("res://ui/player_view.gd")
const RemotePlayerView = preload("res://ui/remote_player_view.gd")
const MobView = preload("res://ui/mob_view.gd")
const GroundItems = preload("res://ui/ground_items.gd")
const ViewEquipmentUI = preload("res://ui/view_equipment_ui.gd")
const ChatUI = preload("res://ui/chat_ui.gd")
const DeathUI = preload("res://ui/death_ui.gd")
const EffectRegistry = preload("res://fx/effect_registry.gd")
const SkillFx = preload("res://fx/skill_fx.gd")
const SkillTable = preload("res://ui/skill_table.gd")
const SkillUI = preload("res://ui/skill_ui.gd")
const CharStatusUI = preload("res://ui/char_status_ui.gd")
const SystemOptionUI = preload("res://ui/system_option_ui.gd")
const GameOptionUI = preload("res://ui/game_option_ui.gd")
const SystemMenuUI = preload("res://ui/system_menu_ui.gd")
const Quickbar = preload("res://ui/quickbar.gd")
const QuestDialog = preload("res://ui/quest_dialog.gd")
const QuestLog = preload("res://ui/quest_log.gd")
const DungeonResultUI = preload("res://ui/dungeon_result_ui.gd")
const SelectItemUI = preload("res://ui/select_item_ui.gd")
const PartyUI = preload("res://ui/party_ui.gd")
const FriendUI = preload("res://ui/friend_ui.gd")
const LoveUI = preload("res://ui/love_ui.gd")
const ShopUI = preload("res://ui/shop_ui.gd")
const ExchangeUI = preload("res://ui/exchange_ui.gd")
const SafeboxUI = preload("res://ui/safebox_ui.gd")
const MallUI = preload("res://ui/mall_ui.gd")
const CubeUI = preload("res://ui/cube_ui.gd")
const PrivateShopUI = preload("res://ui/private_shop_ui.gd")
const GuildUI = preload("res://ui/guild_ui.gd")
const RefineUI = preload("res://ui/refine_ui.gd")
const DragonSoulUI = preload("res://ui/dragon_soul_ui.gd")
const Minimap = preload("res://ui/minimap.gd")
const AtlasUI = preload("res://ui/atlas_ui.gd")
const DungeonState = preload("res://dungeon_state.gd")
const WorldTime = preload("res://world/world_time.gd")
const Weather = preload("res://fx/weather.gd")

# 龙魂是协议兼容层的一部分，但龙魂 40250 服务器没有这个功能。
# 保留 DragonSoulUI / ds_refine 代码供后续兼容，当前客户端不创建入口、不消费背包右键。
const ENABLE_DRAGON_SOUL := false

var client: Node
var world: Node
var player: Node3D
var cam: Camera3D
var pc: Node
var net_world: Node
var net_play: Node
var hud: Node
var ui: CanvasLayer          # UiManager
var cursor_manager: Node
var mouse_controller: Node
var proto: Node              # Metin2Proto
var inventory: Node          # InventoryUI
var item_list: RefCounted    # ItemList
var equip_model: Node        # EquipModel
var ground_items: Node       # GroundItems
var view_equipment_ui: Node  # ViewEquipmentUI
var chat: Node               # ChatUI
var fx: RefCounted           # EffectRegistry
var skill_fx: RefCounted     # SkillFx
var skill_table: RefCounted  # SkillTable
var skills: Node             # SkillUI
var char_status_ui: Node     # CharStatusUI
var system_option_ui: Node   # SystemOptionUI
var game_option_ui: Node      # GameOptionUI
var system_menu_ui: Node      # SystemMenuUI
var quickbar: Node           # Quickbar
var quest_dialog: Node       # QuestDialog
var quest_log: Node          # QuestLog
var dungeon_result_ui: Node  # DungeonResultUI
var select_item_ui: Node     # SelectItemUI
var party_ui: Node           # PartyUI
var friend_ui: Node          # FriendUI
var love_ui: Node            # LoveUI
var shop_ui: Node            # ShopUI
var exchange_ui: Node        # ExchangeUI
var safebox_ui: Node         # SafeboxUI
var mall_ui: Node            # MallUI
var cube_ui: Node            # CubeUI
var private_shop_ui: Node    # PrivateShopUI
var guild_ui: Node           # GuildUI
var refine_ui: Node          # RefineUI
var dragon_soul_ui: Node     # DragonSoulUI
var minimap: Node            # Minimap
var atlas_ui: Node           # AtlasUI
var dungeon_state: Node      # GC_DUNGEON destination / compass state
var world_time: Node         # WorldTime
var weather: Node3D          # Weather
var _assets := ""
var map_path := ""
var _model_built := false
var _main_model_attempted := false
var _main_sync_ready := false
var _main_loading := false
var _main_generation := 0
var _main_view_key := ""
var _main_attempts := 0
var _main_retry_at := 0
var _main_placed_vid := 0
var _main_map_vid := 0
const MAIN_MODEL_MAX_ATTEMPTS := 3
const MAIN_MODEL_RETRY_MS := 1000
var _audio: Node
var _bgm_director: Node
var _mount: Node3D
var _sun: DirectionalLight3D
var _env: Environment
var _env_from_msenv := false   # true = 用 Metin2World 从 .msenv 建的 Sun/WorldEnv
# CNormalBowAttack_FlyEventHandler_AutoClear 的等价：每次弓挥击 / 弓技能起手压一个
# uSkill，`.msa` MOTION_EVENT_TYPE_FLY 帧（_on_local_motion_event 的 type 6）按 FIFO 弹一个
# 发 CG_SHOOT —— pop 即自清（AutoClear），队列天然支持连射多箭在途。§3.6
# 上限兜底：真客户端每个动作必到 FLY 帧，headless / 缺 `.msa` 时丢最旧的，避免无界增长。
var _pending_shots: Array[int] = []
const MAX_PENDING_SHOTS := 8
var _guild_invite_dialog: ConfirmationDialog
var _gift_dialog: AcceptDialog
var _quick_page_mode := false
var _show_names := false
var _ui_mobile := false

func setup(m2client: Node, assets_root: String,
		initial_map_path: String = "OutdoorA1/metin2_map_a1") -> void:
	client = m2client
	_assets = assets_root
	_ui_mobile = UiProfile.resolve() == UiProfile.Mode.MOBILE
	# 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(initial_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"）。
	await _yield()
	_build_world(assets_root, map_path)
	await _yield()

	player = _make_placeholder_player()
	add_child(player)

	cam = GameCamera.new()
	cam.target = player
	cam.world = world
	add_child(cam)
	cam.make_current()

	pc = PlayerCtl.new()
	pc.player = player
	pc.camera = cam
	pc.world = world
	add_child(pc)

	_mount = Node3D.new()
	_mount.name = "Entities"
	add_child(_mount)
	net_world = NetWorld.new()
	add_child(net_world)
	net_world.world = world
	net_world.setup(client, _mount)
	# §8.8 屏幕空间实体血条：明确绑定轨道相机，避免依赖 viewport 当前相机，
	# 也让地图切换 / 多视口时投影来源稳定。
	if net_world.has_method("set_camera"):
		net_world.set_camera(cam)
	net_world.set_local_node(player)
	net_world.entity_added.connect(_on_pickable_added)
	net_world.entity_removed.connect(_on_pickable_removed)

	if _ui_mobile:
		hud = MobileUiRoot.new()
		add_child(hud)
		hud.setup(world, player, client)
	else:
		hud = Hud.new()
		add_child(hud)
		if _map_loaded():
			hud.setup(world, player)      # 含小地图 / 快捷栏 / 背包
		else:
			hud.call("_build_status")     # 无地图兜底：只搭状态栏（血 / 蓝 / 经验 / 等级）

	net_play = NetPlay.new()
	add_child(net_play)
	net_play.setup(client, pc, net_world, hud)
	net_play.camera = cam
	# §8.6 targetBoard.GetTargetVID() -> net_world：选中目标始终强显名字。
	if net_play.has_signal("target_changed") and net_world and net_world.has_method("set_target_vid"):
		net_play.target_changed.connect(func(vid: int): net_world.set_target_vid(int(vid)))
	# §8.8 game.py OnRender chr.Pick() -> ShowCharacterTextTail：悬停角色也强显名字（pick_show.gd）。
	if pc.has_signal("hover_entity_changed") and net_world and net_world.has_method("set_hover_vid"):
		pc.hover_entity_changed.connect(func(vid: int): net_world.set_hover_vid(int(vid)))
	if _assets != "":
		net_play.set_asset_root(_assets)   # §3.5：加载 playersettingmodule.py 连击段表

	await _yield()
	_audio = Audio.new()
	add_child(_audio)
	if assets_root != "":
		_audio.setup(assets_root)
	await _yield()

	# §9.1 地图 BGM：M2Client.bgm_changed -> Audio。放在独立节点里，W4 补全曲目解析。
	_bgm_director = BgmDirector.new()
	add_child(_bgm_director)
	_bgm_director.bind(client, _audio)

	# UI 层 + 物品 proto + 背包窗（I 键开关）
	ui = UiManager.new()
	add_child(ui)
	cursor_manager = CursorManager.new()
	add_child(cursor_manager)
	mouse_controller = MouseController.new()
	add_child(mouse_controller)
	mouse_controller.setup(ui, cursor_manager, _audio)

	# 聊天窗（Enter 聚焦输入）
	chat = ChatUI.new()
	add_child(chat)
	chat.setup(client, ui, _assets)
	if net_play and net_play.has_signal("fishing_feedback") and chat.has_method("on_fishing_feedback"):
		net_play.fishing_feedback.connect(chat.on_fishing_feedback)
	# §8.8 / §5.4 game.py SetPCTargetBoard :804 —— 按住 LCONTROL 点同阵营他人 PC 时
	#   self.interface.OpenWhisperDialog(name)。chat.start_whisper 打开独立私聊窗口。
	if net_play and net_play.has_signal("whisper_requested") and chat.has_method("start_whisper"):
		net_play.whisper_requested.connect(chat.start_whisper)
	if net_world and net_world.has_signal("main_bubble"):
		net_world.main_bubble.connect(_player_bubble)

	# 特效注册表（P5）—— GC_SPECIFIC_EFFECT(.mse 路径) / GC_SPECIAL_EFFECT(内建 id) 在实体上播
	fx = EffectRegistry.new()
	fx.setup(_assets)

	# 技能（P6）—— K 键技能窗，数字键 1-4 → 快捷栏 0-3 / F1-F4 → 4-7 / Ctrl+数字 = 表情，+ 技能特效表
	if assets_root != "":
		skill_table = SkillTable.new()
		for lang in ["en", "common"]:
			if skill_table.load_file(assets_root.path_join("locale/locale/%s/skilldesc.txt" % lang)):
				break
		skill_fx = SkillFx.new()
		skill_fx.setup(fx, skill_table)
		skills = SkillUI.new()
		add_child(skills)
		skills.setup(client, skill_table, ui)
		char_status_ui = CharStatusUI.new()
		add_child(char_status_ui)
		char_status_ui.setup(ui, client, assets_root)
		quickbar = Quickbar.new()
		add_child(quickbar)
		quickbar.item_mouse = mouse_controller
		quickbar.net_play = net_play   # §3.8 修改 1：技能三层校验的运行期上下文
		quickbar.setup(client, skill_table, ui, func() -> Node: return player, assets_root)
		# §3.4 MODE_USE_SKILL：预约技能进射程后由 quickbar 执行实际施法。
		if net_play:
			net_play.use_skill_hook = func(slot: int) -> bool: return quickbar.activate_reserved(slot)
		if quickbar.has_signal("skill_rejected"):
			quickbar.skill_rejected.connect(func(_sid: int, code: String):
				if net_play and net_play.has_signal("cannot_act"):
					net_play.cannot_act.emit(code)   # HUD 走同一条 OnCannotUseSkill 文案通道
			)
		if net_play and net_play.has_signal("fishing_feedback") and net_play.has_signal("cannot_act"):
			net_play.fishing_feedback.connect(func(code: String): net_play.cannot_act.emit(code))
		if quickbar.has_signal("skill_activated"):
			quickbar.skill_activated.connect(func(sid: int):
				if skill_fx and player:
					skill_fx.spawn_skill(sid, _skill_master(sid), player)
				# Bow skills send CG_SHOOT from the .msa FLY frame, matching
				# CNormalBowAttack_FlyEventHandler_AutoClear::OnShoot —— 压队列，
				# 不再用 1.5s 定时器兜底（AutoClear 由 FLY 帧 pop 自清）。§3.6
				if skill_table and skill_table.has_method("is_ranged") and skill_table.is_ranged(sid):
					_queue_shot(sid)
			)

	# 弓普攻起手（net_play._emit_swing）：OnSetFlyTarget 已在那里发过 CG_FLY_TARGETING，
	# 这里只把 uSkill 压进 FLY 帧待发队列（普攻恒 0）。§3.6
	if net_play and net_play.has_signal("bow_shot_fired"):
		net_play.bow_shot_fired.connect(_queue_shot)

	if client.has_signal("effect_cue"):
		client.effect_cue.connect(func(vid: int, name: String, special: int):
			var host: Node3D = _fx_host(vid)
			if host == null:
				return
			if name != "":
				fx.spawn(name, host, true)              # GC_SPECIFIC_EFFECT
			elif special >= 0 and skill_fx:
				skill_fx.spawn_special(special, host))  # GC_SPECIAL_EFFECT 内建 id
	if client.has_signal("emoticon_requested"):
		client.emoticon_requested.connect(_play_emoticon)
	if client.has_signal("gift_available"):
		client.gift_available.connect(_on_gift_available)

	# 任务 / NPC（P7）—— 对话窗自动弹，J 键任务日志
	quest_dialog = QuestDialog.new()
	add_child(quest_dialog)
	quest_dialog.setup(client, ui, proto, assets_root)
	if quest_dialog.has_signal("camera_event_requested_full"):
		quest_dialog.camera_event_requested_full.connect(_on_quest_camera_event)
	if quest_dialog.has_signal("fade_event_requested_full"):
		quest_dialog.fade_event_requested_full.connect(_on_quest_fade_event)
	if quest_dialog.has_signal("dungeon_result_requested"):
		quest_dialog.dungeon_result_requested.connect(_on_dungeon_result)
	dungeon_result_ui = DungeonResultUI.new()
	add_child(dungeon_result_ui)
	dungeon_result_ui.setup(ui)
	quest_log = QuestLog.new()
	add_child(quest_log)
	quest_log.setup(client, ui)
	if quest_dialog.has_signal("quest_button_received"):
		quest_dialog.quest_button_received.connect(func(index: int, title: String, icon_type: String, icon_name: String):
			if quest_log and quest_log.has_method("recv_quest"):
				quest_log.recv_quest(index, title, icon_type, icon_name))
		quest_dialog.quest_button_cleared.connect(func(index: int):
			if quest_log and quest_log.has_method("clear_quest"):
				quest_log.clear_quest(index))
		quest_dialog.opened.connect(func():
			if quest_log and quest_log.has_method("set_buttons_suppressed"):
				quest_log.set_buttons_suppressed(true))
		quest_dialog.closed.connect(func():
			if quest_log and quest_log.has_method("set_buttons_suppressed"):
				quest_log.set_buttons_suppressed(false))

	# 死亡窗 + 状态图标条（P4）
	var death := DeathUI.new()
	add_child(death)
	death.setup(client, ui)
	if client.has_signal("affect_added"):
		var refresh_affects := func(_a = null): if hud and hud.has_method("set_affects"): hud.set_affects(client.get_affects())
		client.affect_added.connect(refresh_affects)
		client.affect_removed.connect(refresh_affects)
	await _yield()
	if ClassDB.class_exists("Metin2Proto") and assets_root != "":
		proto = ClassDB.instantiate("Metin2Proto")
		add_child(proto)
		var ip := assets_root.path_join("locale/locale/en/item_proto")
		if FileAccess.file_exists(ip):
			proto.call("load_item_proto", ip)
		await _yield()
		if chat and chat.has_method("set_proto"):
			chat.set_proto(proto)
		if quest_dialog and quest_dialog.has_method("set_proto"):
			quest_dialog.set_proto(proto)
		var mp := assets_root.path_join("locale/locale/en/mob_proto")
		if FileAccess.file_exists(mp):
			proto.call("load_mob_proto", mp)
		await _yield()
		net_play.proto = proto   # 按 race 分类 NPC/怪（bType 在本 fork 不可靠）
		if net_world and "name_resolver" in net_world:
			net_world.name_resolver = net_play._entity_name   # 头顶名字：怪走 mob_proto
		if net_world and "kind_resolver" in net_world:
			net_world.kind_resolver = net_play._entity_kind   # §8.8 名字色分类：怪 / NPC 走 mob_proto bType
		if net_world and "title_name_resolver" in net_world and assets_root != "":
			# §8.8 称号名：introloading.__RegisterTitleName -> localeInfo.PVP_LEVEL<grade>
			var _tt_loc: RefCounted = load("res://locale.gd").new()
			_tt_loc.setup(assets_root, "en")
			net_world.title_name_resolver = func(g: int) -> String:
				var k := "PVP_LEVEL%d" % g
				return _tt_loc.t(k) if _tt_loc.has(k) else ""
		# 怪 / NPC 真模型：race -> mob_proto.name -> monster/npc 目录
		net_world.set_model_factory(_make_entity_model)
	if assets_root != "":
		item_list = ItemListDB.new()
		item_list.load_file(assets_root.path_join("locale/locale/common/item_list.txt"))
		await _yield()
		if quest_log and quest_log.has_method("set_item_sources"):
			quest_log.set_item_sources(proto, item_list, assets_root)
		inventory = InventoryUI.new()
		add_child(inventory)
		inventory.item_mouse = mouse_controller
		inventory.setup(ui, client, proto, assets_root, item_list)
		# 装备 → 模型部件：武器 / 盾 / 身体 / 头盔 / 头发
		equip_model = EquipModel.new()
		add_child(equip_model)
		equip_model.setup(client, item_list, func() -> Node: return player, assets_root)
		equip_model.main_getter = func() -> int: return client.get_main_vid()
		equip_model.proto = proto   # armor shape 走 item_proto values[3] + specular
		# 地面掉落物
		ground_items = GroundItems.new()
		add_child(ground_items)
		# SetItemTextTailOwner :722：strOwnership = ApplicationStringTable(IDS_POSSESSIVE_MORPHENE)
		#   为空则字面 "'s"。poc 用 EterLocale 的 POSSESSIVE_MORPHENE 键作对应物（缺则回 ""）。
		var _possessive := ""
		if assets_root != "":
			var _poss_loc: RefCounted = load("res://locale.gd").new()
			_poss_loc.setup(assets_root, "en")
			if _poss_loc.has("POSSESSIVE_MORPHENE"):
				_possessive = _poss_loc.t("POSSESSIVE_MORPHENE")
		ground_items.setup(client, _mount, func() -> Node: return player, proto, item_list,
				func() -> Camera3D: return cam, _possessive)
		pc.set_input_surfaces(cursor_manager, ui, ground_items,
				Callable(net_play, "cancel_fishing"), Callable(net_play, "on_ground_click"))
		view_equipment_ui = ViewEquipmentUI.new()
		add_child(view_equipment_ui)
		view_equipment_ui.setup(client, ui, proto, item_list)

	# 选魔石窗（EventManager [SELECT_ITEM] -> interfacemodule.BINARY_OpenSelectItemWindow）
	select_item_ui = SelectItemUI.new()
	add_child(select_item_ui)
	select_item_ui.setup(ui, client, proto, assets_root, item_list)
	if quest_dialog and quest_dialog.has_signal("select_item_requested"):
		quest_dialog.select_item_requested.connect(select_item_ui.open)

	# 社交 / 商店 / 仓库（P8）
	party_ui = PartyUI.new()
	add_child(party_ui)
	party_ui.setup(client, ui)
	# __ArrangeQuestButton 的 xPos 随组队窗可见性移位；party_ui 无信号，用探针轮询。
	if quest_log and quest_log.has_method("set_party_probe"):
		quest_log.set_party_probe(func() -> bool:
			return party_ui != null and party_ui.has_method("is_open") and party_ui.is_open())
	friend_ui = FriendUI.new()
	add_child(friend_ui)
	friend_ui.setup(client, ui)
	love_ui = LoveUI.new()
	add_child(love_ui)
	love_ui.setup(client, ui)
	if chat and friend_ui.has_signal("whisper_to"):
		friend_ui.whisper_to.connect(func(nm: String):
			if chat.has_method("start_whisper"):
				chat.start_whisper(nm))
	shop_ui = ShopUI.new()
	add_child(shop_ui)
	shop_ui.item_mouse = mouse_controller
	shop_ui.audio = _audio
	shop_ui.setup(client, ui, proto, item_list)
	exchange_ui = ExchangeUI.new()
	add_child(exchange_ui)
	exchange_ui.item_mouse = mouse_controller
	exchange_ui.setup(client, ui, proto)
	safebox_ui = SafeboxUI.new()
	add_child(safebox_ui)
	safebox_ui.item_mouse = mouse_controller
	safebox_ui.setup(client, ui, proto)
	mall_ui = MallUI.new()
	add_child(mall_ui)
	mall_ui.item_mouse = mouse_controller
	mall_ui.setup(client, ui, proto)
	cube_ui = CubeUI.new()
	add_child(cube_ui)
	cube_ui.setup(client, ui, proto)
	private_shop_ui = PrivateShopUI.new()
	add_child(private_shop_ui)
	private_shop_ui.item_mouse = mouse_controller
	private_shop_ui.setup(client, ui, proto, assets_root)
	guild_ui = GuildUI.new()
	add_child(guild_ui)
	guild_ui.setup(client, ui, skill_table)
	guild_ui.mark_image_provider = _guild_mark_upload_image
	if client.has_signal("guild_invite_ask"):
		client.guild_invite_ask.connect(_on_guild_invite)
	refine_ui = RefineUI.new()
	add_child(refine_ui)
	refine_ui.setup(client, ui, proto)
	if ENABLE_DRAGON_SOUL:
		dragon_soul_ui = DragonSoulUI.new()
		add_child(dragon_soul_ui)
		dragon_soul_ui.setup(client, ui, proto)
	else:
		dragon_soul_ui = null
	await _yield()
	if inventory and "context_consumer" in inventory:
		inventory.context_consumer = _on_inv_context

	# 世界系统（P9）—— 小地图、昼夜、天气、传送
	minimap = Minimap.new()
	add_child(minimap)
	minimap.setup(client, ui, func() -> Node3D: return player)
	dungeon_state = DungeonState.new()
	add_child(dungeon_state)
	dungeon_state.setup(client, func() -> Node3D: return player)
	if dungeon_state.has_signal("destination_changed") and hud and hud.has_method("set_dungeon_destination"):
		dungeon_state.destination_changed.connect(hud.set_dungeon_destination)
	atlas_ui = AtlasUI.new()
	add_child(atlas_ui)
	atlas_ui.setup(world, ui, func() -> Node3D: return player, map_path.get_file(), client)
	if quest_dialog:
		quest_dialog.map_signal_added.connect(func(x: float, y: float):
			if minimap and minimap.has_method("add_signal_point"):
				minimap.add_signal_point(x, y)
			if atlas_ui and atlas_ui.has_method("open"):
				atlas_ui.open())
		quest_dialog.map_signals_cleared.connect(func():
			if minimap and minimap.has_method("clear_signal_points"):
				minimap.clear_signal_points())
		quest_dialog.atlas_center_requested.connect(func(x: int, y: int):
			if atlas_ui and atlas_ui.has_method("set_center_position_adjust"):
				atlas_ui.set_center_position_adjust(x, y))
	world_time = WorldTime.new()
	add_child(world_time)
	# .msenv 已经给了固定的白天关照（A1 没有昼夜预设）——别让 world_time 每帧覆盖它。
	# 只在走兜底关照时驱动昼夜。
	world_time.setup(client, _sun if not _env_from_msenv else null,
			_env if not _env_from_msenv else null)
	weather = Weather.new()
	add_child(weather)
	weather.setup(cam)
	# 系统设置 / 游戏设置 / ESC 系统菜单（uisystem.SystemDialog + uiSystemOption + uiGameOption）
	system_option_ui = SystemOptionUI.new()
	add_child(system_option_ui)
	system_option_ui.setup(ui, assets_root, _audio,
			func() -> Camera3D: return cam,
			func() -> Environment: return _env)
	game_option_ui = GameOptionUI.new()
	add_child(game_option_ui)
	game_option_ui.setup(ui, client, assets_root)
	# §8.4「总显示名字」radio -> net_world（CPythonSystem::SetAlwaysShowNameFlag）。
	if game_option_ui.has_signal("display_option_changed"):
		game_option_ui.display_option_changed.connect(_on_display_option)
	if net_world and net_world.has_method("set_always_show_name") and game_option_ui.has_method("display_value"):
		net_world.set_always_show_name(game_option_ui.display_value("always_show_name") == 1)
	# §8.8 / §5.4「伤害数字」radio -> net_world（CPythonSystem::SetShowDamageFlag）。
	if net_world and net_world.has_method("set_show_damage") and game_option_ui.has_method("display_value"):
		net_world.set_show_damage(game_option_ui.display_value("show_damage") == 1)
	# §8.4「名字色」radio -> net_world（uigameoption.__SetNameColorMode → chrmgr.SetEmpireNameMode）。
	if net_world and net_world.has_method("set_empire_name_mode") and game_option_ui.has_method("display_value"):
		net_world.set_empire_name_mode(game_option_ui.display_value("name_color") == 1)
	# §8.4「看他国玩家目标框」radio -> net_play（uitarget.TargetBoard.Open 前置过滤）。
	if net_play and net_play.has_method("set_view_other_empire_target") and game_option_ui.has_method("display_value"):
		net_play.set_view_other_empire_target(game_option_ui.display_value("target_board") == 1)
	system_menu_ui = SystemMenuUI.new()
	add_child(system_menu_ui)
	system_menu_ui.setup(ui, client, assets_root, system_option_ui, game_option_ui)
	if client.has_signal("warp"):
		client.warp.connect(_on_warp)
	if client.has_signal("world_reset"):
		client.world_reset.connect(_on_world_reset)
	if client.has_signal("channel_changed") and hud and hud.has_method("set_channel"):
		client.channel_changed.connect(func(c): hud.set_channel(c))

	if _ui_mobile and hud and hud.has_method("bind_controls"):
		_setup_mobile_ui()

	client.entity_main_set.connect(_on_main_set)
	_main_sync_ready = true
	if client.get_main_vid() != 0:      # 重连 / 已在局内
		# net_play._on_main_set 的信号早在它连上前就发过了 —— 手动补上关键那步：
		# 告诉 net_world 主角 vid 由本地 player 代表，别给它生成节点（否则 catch_up 会
		# 在玩家身上叠一个大蓝胶囊）。
		if net_world and net_world.has_method("set_local_vid"):
			net_world.set_local_vid(client.get_main_vid())
		if net_play and net_play.has_method("_on_main_set"):
			net_play._on_main_set(client.get_main_vid())
		_on_main_set(client.get_main_vid())

	# setup() 是协程 —— 进来时进游戏的 spawn burst 早被 M2Client.pump_game 抽干、
	# net_world 还没连上信号。把当前所有实体（怪 / NPC / 别的玩家）补建一遍。
	if net_world and net_world.has_method("catch_up"):
		net_world.catch_up()

	set_process_unhandled_input(true)

func _setup_mobile_ui() -> void:
	# MobileUiRoot owns the presentation and touch layer; every feature node in
	# this dictionary remains the existing PC/business controller.
	hud.bind_controls({
		"client": client,
		"ui": ui,
		"lifecycle": _lifecycle_node(),
		"player_controller": pc,
		"net_play": net_play,
		"quickbar": quickbar,
		"ground_items": ground_items,
		"inventory": inventory,
		"atlas_ui": atlas_ui,
		"quest_log": quest_log,
		"party_ui": party_ui,
		"char_status_ui": char_status_ui,
		"skills": skills,
		"chat": chat,
		"friend_ui": friend_ui,
		"guild_ui": guild_ui,
		"love_ui": love_ui,
		"refine_ui": refine_ui,
		"cube_ui": cube_ui,
		"mall_ui": mall_ui,
		"shop_ui": shop_ui,
		"exchange_ui": exchange_ui,
		"safebox_ui": safebox_ui,
		"private_shop_ui": private_shop_ui,
		"system_menu_ui": system_menu_ui,
		"system_option_ui": system_option_ui,
		"game_option_ui": game_option_ui,
		"minimap": minimap,
	})
	set_process(true)

# 可点选实体列表维护。pickables 是 Array[Node3D]（TypedArray），对已释放的实例
# 调用 erase()/has() 会被类型校验拒绝并报错，所以一律按下标倒序 remove_at()。
func _drop_stale_pickables(drop_vid: int = -1) -> void:
	if pc == null:
		return
	var list: Array = pc.pickables
	for i in range(list.size() - 1, -1, -1):
		# 不要把元素赋给 Node3D 类型的变量：已释放的实例会在类型校验时再次报错。
		var n = list[i]
		if n == null or not is_instance_valid(n):
			list.remove_at(i)
		elif n.is_queued_for_deletion():
			list.remove_at(i)
		elif drop_vid >= 0 and int(n.get_meta("vid", -1)) == drop_vid:
			list.remove_at(i)

# 模型工厂升级会原地替换先前的占位节点，注册新的点选目标前先清掉待删条目。
func _on_pickable_added(node: Node3D, _vid: int) -> void:
	if pc == null or node == null:
		return
	_drop_stale_pickables()
	var list: Array = pc.pickables
	for existing in list:
		if existing == node:
			return
	list.append(node)

func _on_pickable_removed(vid: int) -> void:
	_drop_stale_pickables(vid)

func _lifecycle_node() -> Node:
	# AppFlow owns the single lifecycle observer across login/select/game.  The
	# game scene only borrows it for Android back and focus recovery.
	var owner := get_parent()
	if owner:
		return owner.get_node_or_null("AppLifecycle")
	return null

func _process(_dt: float) -> void:
	# `entered_game` is emitted by the phase transition, while the first
	# GC_MAIN_CHARACTER / EntityStore change is drained later in the same or a
	# following frame.  The setup-time catch-up below cannot see that packet in
	# all server timings, so keep the event path and add this idempotent fallback.
	# Without it the local player stays as the blue CapsuleMesh forever and the
	# camera follows an ungrounded placeholder, which makes the map look empty.
	_sync_main_character()
	# MilesLib::CSoundManager::SetPosition/SetDirection + Update. The audio
	# node keeps its listener at the origin and rebases active 3D instances.
	if _audio == null or player == null or not is_instance_valid(player):
		return
	var basis := player.global_transform.basis
	_audio.set_listener(player.global_position, -basis.z, basis.y)
	if world and world.has_method("get_ambience_sources") and _audio.has_method("update_ambience_sources"):
		_audio.update_ambience_sources(world.call("get_ambience_sources"))

# 会徽上传图源：优先 res://ui/default_guild_mark.png，没有就现造一张 16×12 占位。
func _guild_mark_upload_image() -> Image:
	var p := "res://ui/default_guild_mark.png"
	if ResourceLoader.exists(p):
		var tex: Texture2D = load(p)
		if tex:
			return tex.get_image()
	var img := Image.create(16, 12, false, Image.FORMAT_RGBA8)
	for y in 12:
		for x in 16:
			img.set_pixel(x, y, Color(0.8, 0.2, 0.2) if (x + y) % 2 == 0 else Color(0.9, 0.85, 0.3))
	return img

func _on_guild_invite(guild_id: int, guild_name: String) -> void:
	if _guild_invite_dialog and is_instance_valid(_guild_invite_dialog):
		_guild_invite_dialog.queue_free()
	_guild_invite_dialog = ConfirmationDialog.new()
	_guild_invite_dialog.title = "公会邀请"
	_guild_invite_dialog.dialog_text = "加入公会“%s”？" % guild_name
	_guild_invite_dialog.ok_button_text = "加入"
	_guild_invite_dialog.cancel_button_text = "拒绝"
	_guild_invite_dialog.set_meta("mobile_title", "公会邀请")
	ui.add_child(_guild_invite_dialog)
	if ui.has_method("track_mobile_modal"):
		ui.track_mobile_modal(_guild_invite_dialog)
	_guild_invite_dialog.confirmed.connect(func():
		client.guild_answer_invite(guild_id, true)
		_guild_invite_dialog.queue_free())
	_guild_invite_dialog.canceled.connect(func():
		client.guild_answer_invite(guild_id, false)
		_guild_invite_dialog.queue_free())
	_popup_guild_invite()

func _on_gift_available() -> void:
	# 40250's Gift_Show has no corresponding claim packet in the shipped
	# PythonNetworkStream. Keep the server notification visible instead of
	# silently consuming it; any reward data remains owned by the gift UI/backend.
	if ui == null:
		return
	if _gift_dialog and is_instance_valid(_gift_dialog):
		_popup_gift()
		return
	_gift_dialog = AcceptDialog.new()
	_gift_dialog.title = "礼物"
	_gift_dialog.dialog_text = "有新的礼物可查看。"
	_gift_dialog.ok_button_text = "知道了"
	_gift_dialog.set_meta("mobile_title", "礼物")
	ui.add_child(_gift_dialog)
	if ui.has_method("track_mobile_modal"):
		ui.track_mobile_modal(_gift_dialog)
	_gift_dialog.confirmed.connect(func():
		if is_instance_valid(_gift_dialog):
			_gift_dialog.queue_free())
	_popup_gift()

func _popup_guild_invite() -> void:
	if not is_instance_valid(_guild_invite_dialog):
		return
	if _ui_mobile:
		_guild_invite_dialog.min_size = Vector2i(500, 230)
		_guild_invite_dialog.size = Vector2i(500, 230)
		_guild_invite_dialog.popup_centered(Vector2i(500, 230))
	else:
		_guild_invite_dialog.popup_centered()

func _popup_gift() -> void:
	if not is_instance_valid(_gift_dialog):
		return
	if _ui_mobile:
		_gift_dialog.min_size = Vector2i(460, 210)
		_gift_dialog.size = Vector2i(460, 210)
		_gift_dialog.popup_centered(Vector2i(460, 210))
	else:
		_gift_dialog.popup_centered()

# .msa MotionEventData 分派（对齐 GameLib/RaceMotionData EMotionEventType）：
#   1 EFFECT / 10 EFFECT_TO_TARGET → 挂特效；2 SCREEN_WAVING → 震屏；
#   3 SCREEN_FLASHING → 屏闪；5 SOUND / 有 sound 字段 → 3D 音；6 FLY / 9 WARP → 钩子。
# 数字在 .msa 文本里与运行时枚举有历史偏差，故先按「字段是否有值」再按 type 兜底。
func _on_local_motion_event(type: int, effect: String, sound: String, pos: Vector3) -> void:
	var anchor: Node3D = player
	if sound != "" and _audio:
		# Motion sounds are character sounds in ClientVS22 and use the optional
		# 0.3s / 5000cm frequency-distance guard.
		_audio.play_character_sound_3d(anchor.global_position.x, anchor.global_position.y,
				anchor.global_position.z, sound, true)
	if effect != "" and fx:
		# EffectPosition 是骨骼本地锚点(cm)；简版直接挂角色根 + y 偏移
		var gp := anchor.global_position + Vector3(pos.x, pos.y, pos.z) * 0.01
		fx.spawn_at(effect.get_file().get_basename(), _mount, gp, true)
	match type:
		2:  # SCREEN_WAVING
			if cam and cam.has_method("shake"):
				cam.shake(0.06, 9.0)
		3:  # SCREEN_FLASHING
			_screen_flash(0.12)
		6:  # FLY —— `.msa` MOTION_EVENT_TYPE_FLY 帧：CActorInstance::ProcessMotionEventFly
			# → m_pFlyEventHandler->OnShoot(m_kCurMotNode.uSkill)（ActorInstanceMotionEvent.cpp:290）。
			# FIFO pop = AutoClear + 连射多箭在途各自一发。
			if client and client.has_method("shoot") and not _pending_shots.is_empty():
				client.shoot(_pending_shots.pop_front())
		9:  # WARP —— 传送起点，不是投射物
			pass

# 一次弓挥击 / 弓技能起手 → 压一个待发 uSkill（对齐 AutoClear handler 的 Set()）。
# 满了丢最旧的：真客户端每个动作必到 FLY 帧，headless / 缺 `.msa` 时不至无界增长。§3.6
func _queue_shot(skill: int) -> void:
	_pending_shots.append(skill)
	while _pending_shots.size() > MAX_PENDING_SHOTS:
		_pending_shots.pop_front()

var _flash_rect: ColorRect
var _quest_fade_rect: ColorRect
var _quest_fade_tween: Tween

func _on_quest_camera_event(kind: String, setting: Dictionary, blendtime: float) -> void:
	if cam == null or not is_instance_valid(cam):
		return
	match kind:
		"SET_CAMERA":
			if cam.has_method("set_event_camera"):
				cam.set_event_camera(setting)
		"BLEND_CAMERA":
			if cam.has_method("blend_event_camera"):
				cam.blend_event_camera(setting, blendtime)
		"RESTORE_CAMERA":
			if cam.has_method("set_default_camera"):
				cam.set_default_camera()

func _on_quest_fade_event(kind: String, speed: float) -> void:
	if ui == null:
		if quest_dialog and quest_dialog.has_method("end_event_process"):
			quest_dialog.end_event_process()
		return
	if _quest_fade_rect == null or not is_instance_valid(_quest_fade_rect):
		_quest_fade_rect = ColorRect.new()
		_quest_fade_rect.name = "QuestFade"
		_quest_fade_rect.set_anchors_preset(Control.PRESET_FULL_RECT)
		_quest_fade_rect.mouse_filter = Control.MOUSE_FILTER_IGNORE
		_quest_fade_rect.z_index = 100
		ui.add_child(_quest_fade_rect)
	var white := kind.begins_with("WHITE_")
	_quest_fade_rect.color = Color(1, 1, 1, _quest_fade_rect.color.a) if white \
		else Color(0, 0, 0, _quest_fade_rect.color.a)
	var fade_in := kind.ends_with("_IN")
	var target_alpha := 0.0 if fade_in else 1.0
	_quest_fade_rect.visible = target_alpha > 0.0 or _quest_fade_rect.color.a > 0.001
	if _quest_fade_tween and _quest_fade_tween.is_valid():
		_quest_fade_tween.kill()
	# uiquest.py advances alpha by speed once per frame.  At 60 FPS this is
	# equivalent to 1 / (speed * 60) seconds; malformed zero speeds use the
	# reference default to avoid permanently blocking the event set.
	var frame_speed := maxf(absf(speed), 0.035)
	var duration := absf(target_alpha - _quest_fade_rect.color.a) / (frame_speed * 60.0)
	_quest_fade_tween = create_tween()
	_quest_fade_tween.tween_property(_quest_fade_rect, "color:a", target_alpha, duration)
	_quest_fade_tween.tween_callback(func():
		_quest_fade_rect.visible = target_alpha > 0.0
		if quest_dialog and quest_dialog.has_method("end_event_process"):
			quest_dialog.end_event_process())

func _on_dungeon_result(result: Dictionary) -> void:
	if dungeon_result_ui and dungeon_result_ui.has_method("show_result"):
		dungeon_result_ui.show_result(result)

func _clear_quest_presentation() -> void:
	if _quest_fade_tween and _quest_fade_tween.is_valid():
		_quest_fade_tween.kill()
	_quest_fade_tween = null
	if _quest_fade_rect and is_instance_valid(_quest_fade_rect):
		_quest_fade_rect.color.a = 0.0
		_quest_fade_rect.visible = false
	if cam and cam.has_method("set_default_camera"):
		cam.set_default_camera()

func _screen_flash(secs: float) -> void:
	if hud == null:
		return
	if _flash_rect == null or not is_instance_valid(_flash_rect):
		_flash_rect = ColorRect.new()
		_flash_rect.color = Color(1, 1, 1, 0)
		_flash_rect.set_anchors_preset(Control.PRESET_FULL_RECT)
		_flash_rect.mouse_filter = Control.MOUSE_FILTER_IGNORE
		ui.add_child(_flash_rect)
	_flash_rect.color.a = 0.5
	var tw := create_tween()
	tw.tween_property(_flash_rect, "color:a", 0.0, secs)

# skill id -> master_type（0 普通 / 1 M / 2 G / 3 P），给 skill_fx 选特效档。
func _skill_master(sid: int) -> int:
	if client and client.has_method("get_skills"):
		for s in client.get_skills():
			if int(s.get("id", -1)) == sid:
				return int(s.get("master", 0))
	return 0

# GC_WARP —— 40250 的参考端无论是否“同服”都会重连到 lAddr:wPort；
# world_reset 先清旧实体，随后这里重载地图并把玩家放到新坐标。
func _on_warp(pos: Vector3, same_server: bool) -> void:
	if not same_server:
		_reload_map_for_warp(pos)
		return
	_place_player_at_net_pos(pos)

func _on_world_reset() -> void:
	_main_generation += 1
	_main_view_key = ""
	_main_attempts = 0
	_main_retry_at = 0
	_main_placed_vid = 0
	_main_map_vid = 0
	_model_built = false
	_main_model_attempted = false
	if net_world and net_world.has_method("clear_for_map_change"):
		net_world.clear_for_map_change()
	if ground_items and ground_items.has_method("clear_for_map_change"):
		ground_items.clear_for_map_change()
	# The reference loading phase closes transient interaction state. Keep
	# persistent account data (inventory, quests, friends) intact.
	for widget in [shop_ui, exchange_ui, safebox_ui, mall_ui, cube_ui,
			private_shop_ui, select_item_ui, quest_dialog, quest_log, party_ui,
			friend_ui, refine_ui, dragon_soul_ui]:
		if widget == null or not is_instance_valid(widget):
			continue
		if widget.has_method("close"):
			widget.call("close")
		elif widget.has_method("_close"):
			widget.call("_close")
	if atlas_ui and atlas_ui.has_method("close"):
		atlas_ui.close()
	if dungeon_result_ui and dungeon_result_ui.has_method("close"):
		dungeon_result_ui.close()
	_clear_quest_presentation()
	if ui and ui.has_method("close_top"):
		while ui.close_top():
			pass
	if _audio and _audio.has_method("stop_bgm"):
		_audio.stop_bgm(0.15)

func _reload_map_for_warp(pos: Vector3) -> void:
	var server_pos := Vector2(pos.x * 100.0, -pos.z * 100.0)
	var next_map := _resolve_map_path(map_path, server_pos)
	var old_world := world
	map_path = next_map
	_build_world(_assets, map_path)
	if old_world and is_instance_valid(old_world) and old_world != world:
		old_world.queue_free()
	if cam:
		cam.world = world
	if pc:
		pc.world = world
	if net_world:
		net_world.world = world
	if hud and hud.has_method("reload_world") and _map_loaded():
		hud.reload_world(world)
	if atlas_ui and atlas_ui.has_method("reload_map"):
		atlas_ui.reload_map(world, map_path.get_file())
	if world_time and world_time.has_method("set_lighting"):
		world_time.set_lighting(_sun if not _env_from_msenv else null,
				_env if not _env_from_msenv else null)
	_place_player_at_net_pos(pos)

func _place_player_at_net_pos(pos: Vector3) -> void:
	if player:
		var wp := MapCoord.to_world(pos)
		if world and world.has_method("set_focus_position"):
			world.call("set_focus_position", wp.x, wp.z)
		if world and world.has_method("sample_height"):
			wp.y = float(world.call("sample_height", wp.x, wp.z))
		player.global_position = wp
		if net_play and "_last_sent_pos" in net_play:
			net_play._last_sent_pos = player.global_position
		if cam and cam.has_method("snap_to_target"):
			cam.snap_to_target()

# 背包道具右键：按当前打开的窗决定动作（商店卖 / 交易放 / 仓库存）。
# 返回 true = 已消费，inventory_ui 不再 use_item。
func _on_inv_context(window: int, cell: int) -> bool:
	if shop_ui and shop_ui.is_open():
		shop_ui.sell(cell)
		return true
	if exchange_ui and exchange_ui.is_open():
		exchange_ui.offer(window, cell)
		return true
	if safebox_ui and safebox_ui.is_open():
		safebox_ui.deposit(window, cell)
		return true
	if ENABLE_DRAGON_SOUL and dragon_soul_ui and dragon_soul_ui.is_open():
		dragon_soul_ui.add_cell(window, cell)
		return true
	return false

func _unhandled_input(e: InputEvent) -> void:
	if not (e is InputEventKey) or e.echo:
		return
	var key: Key = e.keycode
	if ui and ui.has_method("blocks_game_input") and ui.blocks_game_input(e):
		return
	# The reference keeps a different callback for LSHIFT press/release.  The
	# flag is also useful on macOS where Command is the modifier for emotes.
	if key == KEY_SHIFT:
		_quick_page_mode = e.pressed
		return
	# game.py SetPCTargetBoard :807 —— app.IsPressed(app.DIK_LCONTROL)。参考端在点 PC 的
	#   那一刻轮询 LCONTROL 按住态；poc 把按下 / 松开喂给 net_play，点 PC 时再查（seam ⑫）。
	if key == KEY_CTRL:
		if net_play and net_play.has_method("set_lcontrol_down"):
			net_play.set_lcontrol_down(e.pressed)
		return
	if not e.pressed:
		match key:
			KEY_SPACE:
				if net_play and net_play.has_method("set_attack_key"):
					net_play.set_attack_key(false)
			KEY_ALT:
				_set_names(false)
			KEY_Q, KEY_E:
				if cam and cam.has_method("set_key_orbit"):
					cam.set_key_orbit(0)
			KEY_R, KEY_F:
				if cam and cam.has_method("set_key_zoom"):
					cam.set_key_zoom(0)
			KEY_T, KEY_G:
				if cam and cam.has_method("set_key_pitch"):
					cam.set_key_pitch(0)
		return

	var command: bool = e.ctrl_pressed or e.meta_pressed
	match key:
		KEY_ENTER, KEY_KP_ENTER:
			if chat and not chat.is_typing():
				chat.focus_input()
				get_viewport().set_input_as_handled()
		KEY_ALT:
			_set_names(true)
		KEY_PRINT:
			_save_screen()
		KEY_SPACE:
			if net_play and net_play.has_method("set_attack_key"):
				net_play.set_attack_key(true)
		KEY_I:
			if inventory: inventory.toggle()
		KEY_K:
			if skills:
				skills.set_job(_job_name())
				skills.toggle()
		KEY_V:
			if char_status_ui: char_status_ui.open("SKILL")
		KEY_C:
			if not command and char_status_ui: char_status_ui.open("STATUS")
		KEY_B:
			if command:
				_send_command("/user_horse_back")
			elif char_status_ui:
				char_status_ui.open("EMOTICON")
		KEY_H:
			if command:
				_send_command("/user_horse_ride")
			elif system_menu_ui:
				# game.py __PressHKey: normal H opens the help window.
				system_menu_ui.toggle_help()
		KEY_J:
			_toggle_horse()
		KEY_N:
			if not command and quest_log: quest_log.toggle()
		KEY_F:
			if command:
				_send_command("/user_horse_feed")
			elif cam and cam.has_method("set_key_zoom"):
				cam.set_key_zoom(1)
		KEY_G:
			if command:
				_send_command("/ride")
			elif _show_names and guild_ui:
				guild_ui.toggle()
			elif cam and cam.has_method("set_key_pitch"):
				cam.set_key_pitch(1)
		KEY_Q:
			if command:
				if quest_log and quest_log.has_method("toggle_buttons"): quest_log.toggle_buttons()
			elif cam and cam.has_method("set_key_orbit"):
				cam.set_key_orbit(-1)
		KEY_E:
			if not command and cam and cam.has_method("set_key_orbit"):
				cam.set_key_orbit(1)
		KEY_R:
			if not command and cam and cam.has_method("set_key_zoom"):
				cam.set_key_zoom(-1)
		KEY_T:
			if not command and cam and cam.has_method("set_key_pitch"):
				cam.set_key_pitch(-1)
		KEY_L:
			if not command and chat and chat.has_method("toggle_log"): chat.toggle_log()
		KEY_M:
			if not command and atlas_ui: atlas_ui.toggle()
		KEY_KP_ADD:
			if minimap and minimap.has_method("get_scale"):
				minimap.set_scale(float(minimap.get_scale()) * 1.15)
		KEY_KP_SUBTRACT:
			if minimap and minimap.has_method("get_scale"):
				minimap.set_scale(float(minimap.get_scale()) / 1.15)
		KEY_Z:
			if not command and ground_items: ground_items.try_pickup()
		KEY_O:
			if not command and ENABLE_DRAGON_SOUL and dragon_soul_ui: dragon_soul_ui.toggle()
		KEY_ESCAPE:
			if system_menu_ui:
				# ui_manager consumes topmost windows before this reaches ESC.
				system_menu_ui.toggle()
		_:
			if int(key) == 96 or int(e.physical_keycode) == 96:
				if not command and ground_items: ground_items.try_pickup()
			elif key >= KEY_F1 and key <= KEY_F4 and quickbar:
				# game.py __PressQuickSlot(4..7), independent of page selection.
				quickbar.activate(4 + (key - KEY_F1))
			elif key >= KEY_1 and key <= KEY_9:
				var n: int = key - KEY_1
				if command:
					_emote(n)
				elif _quick_page_mode and n < 4 and quickbar:
					quickbar.set_page(n)
				elif n < 4 and quickbar:
					quickbar.activate(n)

func _set_names(visible: bool) -> void:
	_show_names = visible
	if net_world and net_world.has_method("set_names_visible"):
		net_world.set_names_visible(visible)

# GameOptionUI 显示开关 radio 选中（uigameoption RefreshAlwaysShowName 系）。
func _on_display_option(key: String, value: int) -> void:
	if key == "always_show_name" and net_world and net_world.has_method("set_always_show_name"):
		net_world.set_always_show_name(value == 1)
	elif key == "show_damage" and net_world and net_world.has_method("set_show_damage"):
		net_world.set_show_damage(value == 1)
	elif key == "name_color" and net_world and net_world.has_method("set_empire_name_mode"):
		net_world.set_empire_name_mode(value == 1)
	elif key == "target_board" and net_play and net_play.has_method("set_view_other_empire_target"):
		net_play.set_view_other_empire_target(value == 1)

func _send_command(text: String) -> void:
	if client and client.has_method("say"):
		client.say(0, text)

func _toggle_horse() -> void:
	if client == null:
		return
	var main: Dictionary = client.get_entity(client.get_main_vid()) if client.has_method("get_entity") else {}
	if int(main.get("mount_vnum", 0)) != 0:
		_send_command("/unmount")
		return
	if private_shop_ui and private_shop_ui.has_method("is_open") and private_shop_ui.is_open():
		return
	if not client.has_method("get_inventory") or not client.has_method("use_item"):
		return
	for item in client.get_inventory():
		if int(item.get("vnum", 0)) in [71114, 71116, 71118, 71120]:
			client.use_item(1, int(item.get("cell", 0)))
			return

func _save_screen() -> void:
	var texture := get_viewport().get_texture()
	if texture == null:
		return
	var dir := OS.get_user_data_dir().path_join("screenshots")
	DirAccess.make_dir_recursive_absolute(dir)
	texture.get_image().save_png(dir.path_join("screen_%d.png" % Time.get_ticks_msec()))

# 表情快捷键（§8.6 / §4.8）—— 参考端 Ctrl+1..9 = chrmgr.SetEmoticon(-1, n) + net.SendEmoticon(n)。
# W3 在 §8.6 里补全：本地立即播表情动作 + 发 classic 表情包。这里先留统一入口。
func _emote(index: int) -> void:
	if client and client.has_method("send_emoticon"):
		client.send_emoticon(index)

func _play_emoticon(index: int) -> void:
	# playersettingmodule.py registers these in this exact order (0..11).
	const EFFECTS := ["sweat", "money", "happy", "like", "love_s", "angry",
			"aha", "gloom", "sorry", "!_mix_back", "question", "fish"]
	if fx and player and index >= 0 and index < EFFECTS.size():
		fx.spawn(EFFECTS[index], player, true)

func _job_name() -> String:
	var r := int(client.get_entity(client.get_main_vid()).get("race", 0)) & 3
	return ["WARRIOR", "ASSASSIN", "SURA", "SHAMAN"][r]

func _fx_host(vid: int) -> Node3D:
	if vid == client.get_main_vid():
		return player
	return net_world.node_for(vid) if net_world else null

func _player_bubble(text: String) -> void:
	if player == null:
		return
	var old := player.get_node_or_null("bubble")
	if old:
		old.queue_free()
	var lbl := Label3D.new()
	lbl.name = "bubble"
	lbl.text = text
	lbl.position.y = 2.35
	lbl.billboard = BaseMaterial3D.BILLBOARD_ENABLED
	lbl.no_depth_test = true
	lbl.pixel_size = 0.0055
	lbl.outline_size = 6
	player.add_child(lbl)
	# §8.8：本地玩家气泡寿命对齐 CPythonTextTail gs_TextTail_LivingTime（默认 5s）
	var tw := create_tween()
	tw.tween_interval(4.0)
	tw.tween_property(lbl, "modulate:a", 0.0, 1.0)
	tw.tween_callback(lbl.queue_free)

# --- 允许 P2 之后注入真模型 --------------------------------------------------

# factory: func(entity_dict) -> Node3D（有 set_anim_state(String) 就被驱动）
func set_entity_model_factory(factory: Callable) -> void:
	if net_world:
		net_world.set_model_factory(factory)

var _mob_view_cache := {}   # race -> bool（该 race 是否有可用模型；失败就别再试）
var _remote_player_view_cache := {}   # race -> bool（远端 PC 真模型可用性）

# 默认工厂：远端 PC -> RemotePlayerView；怪 / NPC -> MobView。失败返回 null 用占位胶囊。
func _make_entity_model(d: Dictionary) -> Node3D:
	if bool(d.get("is_main", false)) or _assets == "":
		return null
	var ch_type := int(d.get("ch_type", -1))
	var race := int(d.get("race", 0))
	var pump: Callable = client.net_poll if client.has_method("net_poll") else Callable()
	if ch_type == 0:
		if race < 0 or _remote_player_view_cache.get(race, true) == false:
			return null
		var pv := RemotePlayerView.new()
		var parts: Array = d.get("parts", []) if d.get("parts", []) is Array else []
		if pv.build_remote(_assets, race, parts, item_list, proto, pump):
			pv.set_audio(_audio)
			_remote_player_view_cache[race] = true
			return pv
		_remote_player_view_cache[race] = false
		pv.free()
		return null
	if proto == null:
		return null
	if race < 1 or _mob_view_cache.get(race, true) == false:
		return null
	var mv := MobView.new()
	if mv.build(_assets, proto, race, pump):
		mv.set_audio(_audio)
		_mob_view_cache[race] = true
		return mv
	_mob_view_cache[race] = false
	mv.free()
	return null

func set_player_model(node: Node3D) -> void:
	if node == null or player == null:
		return
	var old := player
	node.position = old.position
	node.name = "LocalPlayer"
	add_child(node)
	player = node
	cam.target = node
	pc.player = node
	if net_world and net_world.has_method("set_local_node"):
		net_world.set_local_node(node)
	old.queue_free()

# --- internals -------------------------------------------------------------

# setup() 协程用：让出一帧（在树里才 await，测试里直接返回）。
func _yield() -> void:
	if is_inside_tree() and get_tree() != null:
		await get_tree().process_frame

func _build_world(assets_root: String, map_path: String) -> void:
	if not ClassDB.class_exists("Metin2World"):
		push_warning("GameScene: Metin2World 未注册（扩展没编？）")
		return
	_env_from_msenv = false
	world = ClassDB.instantiate("Metin2World")
	world.set("auto_load", false)   # 别让 _ready() 自动加载一遍，下面显式调一次拿返回值
	world.set("assets_root", assets_root)
	world.set("map_path", map_path)
	add_child(world)
	var ok: bool = world.call("load_map")
	if not ok:
		push_warning("GameScene: load_map 失败：" + map_path + "（在平地上继续）")
	# 网络实体坐标要对齐地图本地帧（否则角色飘在几公里外的黑 void）
	if world.has_method("get_map_base_cm"):
		MapCoord.set_base(world.get_map_base_cm())
	# Metin2World 会从 .msenv 建自己的 Sun / WorldEnv（真实关照参数）。有就用它，
	# 丢掉 _build_lighting() 的兜底 —— 两套光 + 两个 WorldEnvironment 会互相打架、
	# 也让 world_time 每帧把 .msenv 的色调冲掉。
	var msenv_sun := world.get_node_or_null("Sun") as DirectionalLight3D
	var msenv_we := world.get_node_or_null("WorldEnv")
	if msenv_sun != null and msenv_we != null and msenv_we.environment != null:
		if is_instance_valid(_sun):
			_sun.queue_free()
		for c in get_children():
			if c is WorldEnvironment:   # 兜底那个（.msenv 的挂在 world 下，不是这里的直接子）
				c.queue_free()
		_sun = msenv_sun
		_env = msenv_we.environment
		_env_from_msenv = true
	elif _sun == null or not is_instance_valid(_sun) or _sun.get_parent() != self:
		# A map without .msenv still needs the fallback lighting. This branch is
		# mainly for a cross-map reload from an outdoor .msenv map.
		_build_lighting()
	# .msenv 换过 Environment 后，把持久化的雾等设置重新贴上去
	if system_option_ui and system_option_ui.has_method("_apply_all"):
		system_option_ui._apply_all()

func _map_loaded() -> bool:
	if world == null:
		return false
	var rep: Dictionary = world.call("get_load_report")
	return int(rep.get("map_size_x", 0)) > 0

func _resolve_map_path(requested: String, forced_pos: Variant = null) -> String:
	var pos: Variant = forced_pos
	if pos == null:
		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)
		pos = entity.get("pos_cm", null)
	if not (pos is Vector3):
		if not (pos is Vector2):
			return requested
	var map_pos := Vector2(pos.x, pos.y)

	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 map_pos.x < base.x or map_pos.x >= max_x or map_pos.y < base.y or map_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 ", map_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"
	sun.rotation = Vector3(deg_to_rad(-50), deg_to_rad(40), 0)
	sun.light_energy = 1.1
	sun.shadow_enabled = true
	add_child(sun)
	_sun = sun
	var we := WorldEnvironment.new()
	var e := Environment.new()
	e.background_mode = Environment.BG_COLOR
	e.background_color = Color(0.55, 0.62, 0.72)
	e.ambient_light_source = Environment.AMBIENT_SOURCE_COLOR
	e.ambient_light_color = Color(0.5, 0.55, 0.62)
	e.ambient_light_energy = 0.42
	e.tonemap_mode = Environment.TONE_MAPPER_LINEAR
	e.tonemap_exposure = 0.82
	e.adjustment_enabled = true
	e.adjustment_saturation = 1.05
	e.adjustment_contrast = 1.08
	e.adjustment_brightness = 0.88
	we.environment = e
	add_child(we)
	_env = e

func _on_main_set(vid: int) -> void:
	if not _main_sync_ready or _main_loading or vid <= 0 or client == null:
		return
	if vid != int(client.get_main_vid()):
		return # A queued event may belong to the previous character.
	# GC_MAIN_CHARACTER can arrive after GameScene has subscribed.  Mark this VID
	# as local before building its view so NetWorld removes (and never recreates)
	# the generic remote-player capsule for our own character.
	if net_world and net_world.has_method("set_local_vid"):
		net_world.set_local_vid(vid)
	if net_world and net_world.has_method("set_local_node") and player:
		net_world.set_local_node(player)
	var e: Dictionary = client.get_entity(vid)
	if e.is_empty() or player == null:
		return
	var net_pos: Variant = e.get("pos", null)
	if not net_pos is Vector3 or not net_pos.is_finite():
		return
	# setup can only choose a map from data already received. Resolve again
	# once the late authoritative position is available, before placing/viewing.
	if _main_map_vid != vid:
		_main_map_vid = vid
		if _assets != "":
			var next_map := _resolve_map_path(map_path, Vector2(net_pos.x * 100.0, -net_pos.z * 100.0))
			if next_map != map_path:
				_main_loading = true
				_reload_map_for_warp(net_pos)
				_main_loading = false
	var key := "%d:%d:%s" % [vid, int(e.get("race", -1)), _assets]
	if key != _main_view_key:
		_main_view_key = key
		_main_attempts = 0
		_main_retry_at = 0
		_main_model_attempted = false
		_model_built = false
	# 首次拿到 race -> 换成真 Metin2Model
	if not _model_built and _assets != "" and int(e.get("race", -1)) in range(8) \
			and _main_attempts < MAIN_MODEL_MAX_ATTEMPTS and Time.get_ticks_msec() >= _main_retry_at:
		_main_model_attempted = true
		_main_attempts += 1
		_main_loading = true
		var generation := _main_generation
		var pv = _create_main_view()
		var pump: Callable = client.net_poll if client.has_method("net_poll") else Callable()
		var built: bool = pv.build(_assets, int(e.get("race", 0)), pump)
		_main_loading = false
		# build() polls the network. World reset / new main data may arrive
		# inside it; do not publish a view belonging to an obsolete generation.
		if generation != _main_generation or is_queued_for_deletion() \
				or vid != int(client.get_main_vid()) \
				or int(client.get_entity(vid).get("race", -1)) != int(e.get("race", -1)):
			pv.free()
			return
		if built:
			pv.set_audio(_audio)
			set_player_model(pv)
			_model_built = true
			if net_play:
				net_play.player_view = pv
			if pv.anim and pv.anim.has_signal("motion_event"):
				pv.anim.motion_event.connect(_on_local_motion_event)
			if pc and pc.has_signal("anim_state") and not pc.anim_state.is_connected(_on_main_anim_state):
				pc.anim_state.connect(_on_main_anim_state)
			if equip_model:
				equip_model.set_race(int(e.get("race", 0)))
				equip_model.refresh()
		else:
			_main_retry_at = Time.get_ticks_msec() + MAIN_MODEL_RETRY_MS
			push_warning("GameScene: 主角模型加载失败（vid=%d race=%d attempt=%d/%d）" % [vid, int(e.get("race", 0)), _main_attempts, MAIN_MODEL_MAX_ATTEMPTS])
			pv.free()
	# Polling for model readiness must not snap a moving player to the initial
	# server position on every frame or on duplicate main-character events.
	if _main_placed_vid == vid:
		return
	_place_player_at_net_pos(net_pos)
	_main_placed_vid = vid

func _create_main_view() -> Node3D:
	return PlayerView.new()

func _on_main_anim_state(state: String) -> void:
	if is_instance_valid(player) and player.has_method("set_anim_state"):
		player.set_anim_state(state)

func _sync_main_character() -> void:
	if not _main_sync_ready or _main_loading or player == null or not is_instance_valid(player):
		return
	if client == null or not client.has_method("get_main_vid") or not client.has_method("get_entity"):
		return
	var vid := int(client.get_main_vid())
	if vid == 0:
		return
	var e: Dictionary = client.get_entity(vid)
	# Do not mark the attempt until the authoritative character row exists. The
	# phase packet can precede the row by several frames on a busy connection.
	if e.is_empty():
		return
	_on_main_set(vid)

# AppFlow 的唯一生命周期协调者在 GameScene 装配完成后调用，绑定当前场景的音频对象。
# GameScene 不创建 AppLifecycle，避免切屏时重复监听暂停 / 恢复通知。
func lifecycle_audio() -> Node:
	return _audio

func _make_placeholder_player() -> Node3D:
	var root := Node3D.new()
	root.name = "LocalPlayer"
	var mesh := MeshInstance3D.new()
	var cap := CapsuleMesh.new()
	cap.radius = 0.35
	cap.height = 1.8
	mesh.mesh = cap
	mesh.position.y = 0.9
	var mat := StandardMaterial3D.new()
	mat.albedo_color = Color(0.35, 0.6, 1.0)
	mesh.material_override = mat
	root.add_child(mesh)
	return root