# NetWorld —— 把 M2Client 的网络实体镜像成 Godot 场景节点。
#
# 消费 M2Client 的 entity_spawned / entity_despawned / entity_moved /
# entity_main_set / chat 信号：每个 vid 一个子节点，位置向 client.get_entity(vid).pos
# 平滑逼近，rotation.y 取自 angle_deg，动画状态取自 func（FUNC_*）。
#
# 默认生成「占位胶囊 + 名字牌」（快、无依赖，先跑通同步/插值/状态循环）。
# 要换成真模型：set_model_factory(func(entity_dict) -> Node3D)，返回的节点若有
# set_anim_state(name:String) 方法就会被驱动。
#
# 用法：
#   var nw := preload("res://net_world.gd").new()
#   add_child(nw)
#   nw.setup(m2client, self)            # self = 实体挂载父节点(Node3D)
#   nw.world = metin2_world             # 可选：贴地
#   nw.main_entity_ready.connect(func(node, vid): _cam.target = node)
extends Node

const FlyObject = preload("res://fly_object.gd")
const NameColor = preload("res://name_color.gd")
const TextTail = preload("res://text_tail.gd")
const ChatTail = preload("res://chat_tail.gd")
const NameShow = preload("res://name_show.gd")
const DamageEffect = preload("res://damage_effect.gd")
const EntityRules = preload("res://entity_rules.gd")
const PickShow = preload("res://pick_show.gd")
const NameTailLayout = preload("res://name_tail_layout.gd")
const TextMetrics = preload("res://text_metrics.gd")
const ScreenHpBar = preload("res://screen_hp_bar.gd")

signal entity_added(node: Node3D, vid: int)
signal entity_removed(vid: int)
signal main_entity_ready(node: Node3D, vid: int)
signal chat_line(type: int, vid: int, text: String)
signal fly_targeting(shooter_vid: int, target_vid: int, target_cm: Vector2, append: bool)
signal fly_exploded(world_pos: Vector3, cause: String)   # §3.6 飞行物命中 / 超程 / 触地
signal fishing_event(vid: int, subheader: int, dir: int)
signal motion_event(vid: int, victim_vid: int, motion: int)
signal vitals(vid: int, hp: int, max_hp: int, dead: bool)
signal damage_number(vid: int, amount: int, crit: bool, dodge: bool)

# CInstanceBase::FUNC_*
const FUNC_WAIT := 0
const FUNC_MOVE := 1
const FUNC_ATTACK := 2
const FUNC_COMBO := 3
const FUNC_MOB_SKILL := 4
const FUNC_EMOTION := 5
const FUNC_SKILL := 0x80

# EDamageFlag / IsShowDamage / ProcessDamage 分类见 damage_effect.gd（DamageEffect.DAMAGE_*）。

# §8.8 头顶名字 / 聊天气泡 billboard 的默认局部 y（世界单位）。seam ⑨（name_tail_layout.gd）：
#   有「聊天」气泡时名字尾标顶到气泡上方 17px（换算按名字 Label3D 的 pixel_size）。
const NAME_TAG_DEFAULT_Y := 2.1
const BUBBLE_TAG_Y := 2.35

# §8.8 公会名 / 称号 / 等级子标签的默认局部 y（竖排近似：公会名在名字上、称号 / 等级在下）。
#   seam ⑦（name_tail_layout.gd）：参考端 ArrangeTextTail 把它们锚在名字尾标 pTextTail->y 上，
#   名字因聊天气泡上移时三者整体跟随——_reposition_name_tag 按 name_tail_lift_delta 补这段位移。
const SUBTAG_DEFAULT_Y := {"GuildTag": 2.34, "TitleTag": 1.86, "LevelTag": 1.74}
# seam ⑦ 水平排版（增量 121）：ArrangeTextTail 按 GetTextSize 精确像素排称号 / 等级，
#   poc 无字体度量 -> 按「字符数 * 约 7px」估文本宽（与 ground_items 的 TAG_CHAR_W_PX 同源）。
const SUBTAG_CHAR_W_PX := 7.0

# §8.8：参考端的实体 HP 条属于屏幕尾标，而不是 3D billboard。条的锚点
# 保持在原占位条高度附近；实际像素位置由 Camera3D.unproject_position() 计算。
const HP_BAR_WORLD_Y := 1.95
const HP_BAR_SCREEN_MARGIN := 32.0

# CLIENT-GAP §2.1 two-layer model. The data layer (M2Client / EntityStore) always
# holds every known entity; a scene node under `parent` exists only while the
# entity is visible: it is the main character, force-visible, a wall, or within
# CHAR_STAGE_VIEW_BOUND of the main character.
#   CPythonCharacterManager.cpp:13   -> CHAR_STAGE_VIEW_BOUND = 200*100 (cm; px==cm)
#   PythonCharacterManager.cpp:182   -> cull past (CHAR_STAGE_VIEW_BOUND + 10)
const CHAR_STAGE_VIEW_BOUND := 200 * 100
# CInstanceBase AFFECT enum, ordinal 7 (bit 7) == AFFECT_SHOW_ALWAYS. The 40250
# ClientVS22 tree keeps the enum in AffectFlagContainer.h and does not spell the
# member out; this mirrors the m2dev sibling source (InstanceBase.h) and is the
# force-visible bit checked by CNetworkActorManager::__IsVisibleActor.
const AFFECT_SHOW_ALWAYS := 1 << 7
# CInstanceBase::IsWall race ids (InstanceBase.cpp) — always mirrored regardless
# of distance so map geometry never pops.
const WALL_RACES := [14201, 14202, 14203, 14204]

var client: Node                       # M2Client
var parent: Node3D                     # 实体挂这下面
var world: Node                        # Metin2World（可空，用 sample_height 贴地）
# §3.2 后位置插值全在 C++ EntityStore::tick() 里做，这里直接跟随 e.pos。
# 两个字段保留只为兼容外部读取 / 旧测试，_process 不再使用。
var follow_lerp := 14.0
var snap_dist := 6.0

var _by_vid := {}                      # vid:int -> Node3D
var _main_vid := 0
var _local_vid := 0                    # 由 net_play 设：这个 vid 由本地 player 代表，不生成节点
var _local_node: Node3D                # 本地玩家的真模型（不挂在 _mount 下）
var _model_factory: Callable          # func(Dictionary) -> Node3D
var name_resolver: Callable = Callable()  # func(entity_dict) -> String（怪名走 mob_proto）
var kind_resolver: Callable = Callable()  # §8.8 func(entity_dict) -> int（0 PC/1 NPC/2 怪/3 石/4 warp；net_play._entity_kind）
var title_name_resolver: Callable = Callable()  # §8.8 func(grade:int) -> String（PVP_LEVEL<grade> 本地化；未注入回退裸 key，seam ⑧）
var _name_color_accum := 0.0             # §8.8 头顶名字色 / 称号标签的节流刷新累加器（~2Hz）
var _chat_tails := {}                    # §8.8 vid:int -> {text,color,name_flag,living_time}（CPythonTextTail::m_ChatTailMap）
var _pvp_relations := {}              # unordered pair key -> {src_vid,dst_vid,mode}
var _duel_opponents := {}             # server-provided duel opponent VID set
var _duel_cannot_attack := false
var _fading := {}                     # vid:int -> true while a culled node tweens out (not re-created until done)
# §8.4 / §8.6 头顶名字「是否显示」（name_show.gd）。game.py::__IsShowName() 的两个来源：
#   _always_show_name —— uigameoption「总显示名字」radio（CPythonSystem::IsAlwaysShowName）
#   _alt_held         —— LALT 按住（game.py ShowName/HideName 的 ShowNameFlag）
# 另加 forced 路径：_target_vid（targetBoard.GetTargetVID()）+ chat 尾标 bNameFlag +
#   _hover_vid（game.py OnRender chr.Pick() -> ShowCharacterTextTail，见 pick_show.gd）。
var _always_show_name := NameShow.ALWAYS_SHOW_NAME_DEFAULT
var _alt_held := false
var _target_vid := 0
var _hover_vid := 0                     # player_controller._update_hover_cursor 射线拾到的角色 vid（0 = 无）
# §8.8 / §5.4 伤害飘字（damage_effect.gd）。CPythonSystem::IsShowDamage 门（uigameoption
#   「伤害数字」radio）+ CInstanceBase::m_DamageQueue（每帧 pop 一条）+ ProcessDamage 分类。
var _show_damage := DamageEffect.SHOW_DAMAGE_DEFAULT
var _damage_queue: Array = []           # m_DamageQueue：{vid, amount, flag, self, target}
var _dmg_self_toggle := false           # m_bDamageEffectType（SELFDAMAGE / SELFDAMAGE2 交替）
var _fly_mgr: Node                    # FlyManager（fly_object.gd）—— GC_CREATE_FLY 的真实弹道 + 命中判定。§3.6
var _hp_layer: CanvasLayer            # 屏幕空间尾标层（低于 HUD / UiManager）
var _hp_overlay: Control
var _hp_bars := {}                    # vid:int -> ScreenHpBar
var _camera: Camera3D

# Fishing surface provider bridge. NetWorld owns entity presentation while
# Metin2World owns map data; keep the ClientVS22 GetFishingRot query on the
# latter and expose it without making NetPlay depend on the native class.
func get_fishing_rotation(gx_m: float, gz_m: float, heading_deg: float) -> float:
	if world == null or not world.has_method("get_fishing_rotation"):
		return -2.0 # provider unavailable; NetPlay keeps the protocol-only fallback
	return float(world.call("get_fishing_rotation", gx_m, gz_m, heading_deg))

func can_fishing_position(gx_m: float, gz_m: float, heading_deg: float) -> bool:
	if world == null or not world.has_method("can_fishing_position"):
		return true
	return bool(world.call("can_fishing_position", gx_m, gz_m, heading_deg))

func setup(m2client: Node, mount: Node3D) -> void:
	client = m2client
	parent = mount
	client.entity_spawned.connect(_on_spawn)
	client.entity_despawned.connect(_on_despawn)
	client.entity_main_set.connect(_on_main_set)
	if client.has_signal("entity_info"):
		client.entity_info.connect(_on_info)
	client.chat.connect(func(t, v, s):
		chat_line.emit(t, v, s)
		# §8.8 RecvChatPacket:1372 —— 带 VID 的聊天里，除 SHOUT / COMMAND 外都进头顶「聊天尾标」
		# （line 去掉 "名字: " 前缀，INFO/NOTICE 类不去）
		if int(v) != 0 and ChatTail.wants_chat_tail(int(t)):
			_bubble(int(v), ChatTail.line_for_tail(int(t), String(s))))
	# entity_moved 不强依赖：_process 每帧统一插值。留个钩子便于调试。
	client.entity_moved.connect(_on_moved)
	client.vitals_changed.connect(_on_vitals)
	client.entity_dead.connect(_on_dead)
	client.damage.connect(_on_damage)
	if client.has_signal("motion"):
		client.motion.connect(_on_motion)
	if client.has_signal("dig_motion"):
		client.dig_motion.connect(_on_dig_motion)
	if client.has_signal("fly_cue"):
		client.fly_cue.connect(_on_fly)
	if client.has_signal("fly_targeting"):
		client.fly_targeting.connect(_on_fly_targeting)
	if client.has_signal("fishing_event"):
		client.fishing_event.connect(_on_fishing_event)
	if client.has_signal("pvp_changed"):
		client.pvp_changed.connect(_on_pvp_changed)
	if client.has_signal("duel_changed"):
		client.duel_changed.connect(_on_duel_changed)
	# Guild marks are downloaded by AppFlow on the side connection.  The mark
	# store is independent from the entity stream, so a character can already
	# be visible when its 16x12 image arrives; refresh the affected text tails
	# on both the initial completion and an incremental GC_MARK_UPDATE.
	if client.has_signal("guild_marks_ready"):
		client.guild_marks_ready.connect(func(_count: int): _retint_all_text_tails())
	if client.has_signal("guild_mark_updated"):
		client.guild_mark_updated.connect(func(guild_id: int, _img_idx: int): _refresh_guild_mark(guild_id))
	# §3.6 飞行物实体：GC_CREATE_FLY 之后由 FlyManager 跑真实弹道 + 线段命中判定。
	_fly_mgr = FlyObject.new()
	_fly_mgr.name = "FlyManager"
	add_child(_fly_mgr)
	_fly_mgr.setup(parent, world)
	_fly_mgr.exploded.connect(func(wp: Vector3, cause: String): fly_exploded.emit(wp, cause))
	_ensure_hp_overlay()

# GameScene normally calls this after creating the orbit camera. Keeping the
# setter explicit makes camera hand-off / map reload deterministic and leaves
# headless tests independent of the active viewport camera.
func set_camera(camera: Camera3D) -> void:
	_camera = camera
	_update_hp_bars()

# 已在局内（重连 / setup 是协程，进来时 spawn burst 已被 pump 抽干）——
# 把当前所有实体补建一遍，别漏掉进游戏那一批怪 / NPC / 玩家。
func catch_up() -> void:
	if client == null or not client.has_method("get_entities"):
		return
	for e in client.get_entities():
		var vid := int(e.get("vid", 0))
		if vid != 0 and not _by_vid.has(vid) and vid != _local_vid:
			_on_spawn(e)
	if client.has_method("get_pvp_relations"):
		for relation in client.get_pvp_relations():
			_on_pvp_changed(int(relation.get("src_vid", 0)), int(relation.get("dst_vid", 0)),
					int(relation.get("mode", 0)))
	if client.has_method("get_duel"):
		_on_duel_changed(client.get_duel())

func set_model_factory(f: Callable) -> void:
	_model_factory = f
	# The game server can send the initial actor burst before GameScene has
	# finished loading mob/item proto tables. Those actors were necessarily made
	# as capsules; once the real factory is available, replace them from the
	# authoritative EntityStore rows instead of leaving mixed placeholder/GR2
	# models on screen.
	_refresh_existing_model_views()

func _refresh_existing_model_views() -> void:
	if not _model_factory.is_valid() or client == null or not client.has_method("get_entity"):
		return
	for vid in _by_vid.keys().duplicate():
		var id := int(vid)
		if id == _local_vid:
			continue
		var d: Dictionary = client.get_entity(id)
		if not d.is_empty():
			_on_spawn(d)

# 本地玩家用 player_controller 的节点代表，这里就不要再画一个。
func set_local_vid(vid: int) -> void:
	_local_vid = vid
	var n: Node3D = _by_vid.get(vid, null)
	if n:
		_by_vid.erase(vid)
		n.queue_free()
	_remove_hp_bar(vid)

func set_local_node(node: Node3D) -> void:
	_local_node = node

# game.py ShowName/HideName toggles actor name plates without changing the
# network data layer. Shop/PVP labels and chat bubbles remain independent.
# LALT 按 / 抬 -> game.py ShowNameFlag（__IsShowName 的一半）。
func set_names_visible(visible: bool) -> void:
	_alt_held = visible
	_refresh_all_name_visibility()

func names_visible() -> bool:
	return _alt_held

# uigameoption「总显示名字」radio -> CPythonSystem::SetAlwaysShowNameFlag（__IsShowName 的另一半）。
func set_always_show_name(on: bool) -> void:
	_always_show_name = on
	_refresh_all_name_visibility()

# uigameoption「伤害数字」radio -> CPythonSystem::SetShowDamageFlag（AddDamageEffect 的入队门）。
func set_show_damage(on: bool) -> void:
	_show_damage = on

# targetBoard.GetTargetVID()：目标始终强显名字（game.py OnRender ShowCharacterTextTail(targetVID)）。
func set_target_vid(vid: int) -> void:
	if _target_vid == vid:
		return
	var prev := _target_vid
	_target_vid = vid
	for v in [prev, vid]:
		if v != 0 and _by_vid.has(v):
			_set_name_visibility(_by_vid[v])

# game.py OnRender：wndMgr.IsPickedWindow 门内 chr.Pick() 命中的角色 -> ShowCharacterTextTail
#   （强显名字，绕过 __IsShowName()）。poc 由 player_controller 的射线悬停拾取喂入。
#   见 pick_show.gd（第 27 个 canonical）与增量 113 的 _target_vid 同路数。
func set_hover_vid(vid: int) -> void:
	if _hover_vid == vid:
		return
	var prev := _hover_vid
	_hover_vid = vid
	for v in [prev, vid]:
		if v != 0 and _by_vid.has(v):
			_set_name_visibility(_by_vid[v])

func _refresh_all_name_visibility() -> void:
	for node in _by_vid.values():
		_set_name_visibility(node)

# game.py OnRender：本地主角平面坐标（ShowAllTextTail 的距离中心）；未知返回 (INF,INF)。
func _main_planar_cm() -> Vector2:
	if client and client.has_method("get_entity") and _main_vid != 0:
		var m: Dictionary = client.get_entity(_main_vid)
		if not m.is_empty() and m.get("pos_cm", null) is Vector3:
			var mc: Vector3 = m["pos_cm"]
			return Vector2(mc.x, mc.y)
	return Vector2(INF, INF)

# name_show.name_visible_for 的 net_world 侧组装：forced（target / hover / chat bNameFlag）+
# __IsShowName()（_always_show_name or _alt_held）+ 3500 平面距 + isShow/wall/CanPick 资格。
func _name_shown(root: Node3D) -> bool:
	if root == null or not is_instance_valid(root):
		return false
	var vid := int(root.get_meta("vid", 0))
	var e: Dictionary = {}
	if vid != 0 and client and client.has_method("get_entity"):
		e = client.get_entity(vid)
	var dead := bool(e.get("dead", false))
	var is_wall := _is_wall(int(e.get("race", 0)))
	# CanPickInstance() 更细（隐身 / 特定 affect 亦不可拾取）—— 这里只按死透近似，记 seam ⑩。
	var alive := not dead
	# game.py OnRender：targetBoard.GetTargetVID()（增量 113）+ chr.Pick() 悬停命中
	#   （_hover_vid，增量 116 / pick_show.gd）都走 ShowCharacterTextTail 强显。
	var forced := vid != 0 and (vid == _target_vid or vid == _hover_vid)
	var ct: Variant = _chat_tails.get(vid, null)
	if ct is Dictionary and bool(ct.get("name_flag", false)):
		forced = true
	var show_name := NameShow.is_show_name(_always_show_name, _alt_held)
	var dist := 0.0   # 主角位置未知 -> 不按距离裁剪（fail-open，同 _is_visible_entity）
	if not e.is_empty() and e.get("pos_cm", null) is Vector3:
		var mc := _main_planar_cm()
		if mc.x != INF:
			dist = NameShow.planar_distance_cm(_planar_cm(e), mc)
	return NameShow.name_visible_for(forced, show_name, dist, alive, is_wall, alive)

func _set_name_visibility(root: Node3D) -> void:
	if root == null or not is_instance_valid(root):
		return
	var shown := _name_shown(root)
	var tag := root.get_node_or_null("Label3D") as Label3D
	if tag:
		tag.visible = shown
	# §8.8 称号 / 等级 / 公会名子标签随主名字整体开关；各自「是否有内容」仍由
	# _apply_text_tail 按 RefreshTextTail 决定。
	for sub in ["GuildTag", "TitleTag", "LevelTag"]:
		var st := root.get_node_or_null(sub) as Label3D
		if st:
			st.visible = shown and st.text != ""
	var mark := root.get_node_or_null("GuildMark") as Sprite3D
	if mark:
		var guild_tag := root.get_node_or_null("GuildTag") as Label3D
		mark.visible = shown and guild_tag != null and guild_tag.text != ""

# ClientVS22 destroys the network actor manager when Loading starts. This is
# called from M2Client.world_reset before the replacement connection sends its
# first GC_MAIN_CHARACTER/GC_CHARACTER_ADD burst.
func clear_for_map_change() -> void:
	for vid in _by_vid.keys():
		var node: Node3D = _by_vid[vid]
		if is_instance_valid(node):
			node.queue_free()
		entity_removed.emit(int(vid))
	_by_vid.clear()
	_clear_hp_bars()
	_fading.clear()
	_damage_queue.clear()
	_main_vid = 0
	_pvp_relations.clear()
	_duel_opponents.clear()
	_duel_cannot_attack = false

func node_for(vid: int) -> Node3D:
	return _by_vid.get(vid, null)

func main_node() -> Node3D:
	return _by_vid.get(_main_vid, null)

# ---------------------------------------------------------------------------

func _on_spawn(d: Dictionary) -> void:
	var vid := int(d.get("vid", 0))
	if vid == 0 or vid == _local_vid:
		return
	# §2.1: a node that is blending out is still "present" until the tween frees
	# it — don't rebuild it mid-fade (mirrors GetInstancePtr/UpdateDeleting).
	if _fading.has(vid):
		return
	# §2.3 one-overwrite rule: a fresh Spawn for a VID that already has a node
	# destroys and recreates the node (the data row was whole-replaced). The one
	# exception is a mount / dismount driven rebuild, which keeps the old world
	# position (reference: kCreateData.m_lPosX = oldPos.x; m_lPosY = -oldPos.y —
	# the Y flip is the server<->pixel frame, already applied, so in Godot world
	# space this is just the old node's global_position).
	var keep_pos: Variant = null
	var existing: Node3D = _by_vid.get(vid, null)
	if is_instance_valid(existing):
		var old_mount := int(existing.get_meta("mount_vnum", 0))
		var new_mount := int(d.get("mount_vnum", 0))
		if (old_mount == 0) != (new_mount == 0):
			keep_pos = existing.global_position
		_by_vid.erase(vid)
		existing.queue_free()
	elif not _is_visible_entity(d):
		# §2.1: the data row lives in EntityStore; the scene node is only built
		# once the entity is in view. _update_visibility() creates it later when
		# the main character moves into CHAR_STAGE_VIEW_BOUND.
		return
	var node: Node3D = null
	if _model_factory.is_valid():
		node = _model_factory.call(d)
	if node == null:
		node = _make_placeholder(d)
	elif not node.has_node("Label3D"):
		_attach_nameplate(node, d)   # 真模型也要头顶名字 + HP 条
	node.name = "e_%d" % vid
	parent.add_child(node)
	if keep_pos is Vector3:
		node.global_position = keep_pos
	else:
		node.position = _grounded(d.get("pos", Vector3.ZERO))
	node.set_meta("vid", vid)
	node.set_meta("func", int(d.get("func", FUNC_WAIT)))
	node.set_meta("mount_vnum", int(d.get("mount_vnum", 0)))
	var ch_type := int(d.get("ch_type", 0))
	node.set_meta("cursor_shape", "TALK" if ch_type in [1, 4] else "ATTACK")
	_by_vid[vid] = node
	_sync_hp_bar(vid, d)
	_set_name_visibility(node)
	_refresh_shop_sign(node, str(d.get("shop_sign", "")))
	_refresh_pvp_tag(vid)
	_apply_field_updates(node, d)
	_apply_name_color(vid)
	_apply_text_tail(vid)
	entity_added.emit(node, vid)
	if vid == _main_vid:
		main_entity_ready.emit(node, vid)

# GC_CHAR_ADD_INFO 到了：刷新头顶名字 / HP 上限（节点已存在）。
func _on_info(vid: int, d: Dictionary) -> void:
	var n: Node3D = _by_vid.get(vid, null)
	if n == null:
		return
	_sync_hp_bar(vid, d)
	var nm := _display_name(d)
	if nm != "":
		if n.has_node("Label3D"):
			(n.get_node("Label3D") as Label3D).text = nm
		elif n.has_method("set_display_name"):
			n.set_display_name(nm)
	_refresh_shop_sign(n, str(d.get("shop_sign", "")))
	_apply_field_updates(n, d)
	_apply_name_color(vid)
	_apply_text_tail(vid)

# §2.5: push the mutable entity fields onto a live view in the exact order the
# reference client uses (CNetworkActorManager refresh -> NetworkActorManager.cpp
# :470): ChangeArmor -> ChangeWeapon -> ChangeHair -> ChangeGuild ->
# SetAffectFlagContainer -> SetMoveSpeed -> SetAttackSpeed -> SetAlignment ->
# SetPKMode -> SetStateFlags. Every setter is optional: the placeholder capsule
# and views that do not model a field simply skip it.
#
# §4.1 修改 5（远端换装）：armor/weapon/hair 字段顺序已 1:1（上面三行）。变身 / 时装
# 遮挡由模型侧统一处理 —— 真模型（PlayerView + EquipModel）在 refresh() 里过
# part_hiding.gd（见 equip_model.gd）。远端 PC 由 RemotePlayerView 消费
# awPart[CHR_EQUIPPART_ARMOR..HAIR]；本地玩家仍由 EquipModel 读取 get_equipment()。
func _apply_field_updates(n: Node3D, d: Dictionary) -> void:
	var parts: Variant = d.get("parts", [])
	if parts is Array and parts.size() >= 4:
		_set_wear_slot(n, "set_armor", 0, int(parts[0]))
		_set_wear_slot(n, "set_weapon", 1, int(parts[1]))
		_set_wear_slot(n, "set_head", 2, int(parts[2]))
		_set_wear_slot(n, "set_hair", 3, int(parts[3]))
	if n.has_method("set_guild"):
		n.call("set_guild", int(d.get("guild", 0)))
	if n.has_method("set_affect_flags"):
		n.call("set_affect_flags", int(d.get("affect_flags", 0)))
	elif n.has_method("set_affects"):
		n.call("set_affects", int(d.get("affect_flags", 0)))
	if n.has_method("set_move_speed"):
		n.call("set_move_speed", int(d.get("moving_speed", 0)))
	elif n.has_method("set_server_speed"):
		n.call("set_server_speed", int(d.get("moving_speed", 0)))
	if n.has_method("set_attack_speed"):
		n.call("set_attack_speed", int(d.get("attack_speed", 0)))
	if n.has_method("set_alignment"):
		n.call("set_alignment", int(d.get("alignment", 0)))
	if n.has_method("set_pk_mode"):
		n.call("set_pk_mode", int(d.get("pk_mode", 0)))
	if n.has_method("set_state_flags"):
		n.call("set_state_flags", int(d.get("state_flags", 0)))
	# keep the §2.3 mount-toggle rebuild key current
	n.set_meta("mount_vnum", int(d.get("mount_vnum", n.get_meta("mount_vnum", 0))))

func _set_wear_slot(n: Node3D, dedicated: String, slot: int, vnum: int) -> void:
	if n.has_method(dedicated):
		n.call(dedicated, vnum)
	elif n.has_method("set_wear"):
		n.call("set_wear", slot, vnum)

# --- §2.1 per-frame visibility manager ------------------------------------------
# Mirrors CNetworkActorManager::__IsVisibleActor + the CPythonCharacterManager
# cull loop: every data-layer entity is checked each frame; a node is built when
# the entity comes into view and blended out when it leaves. Runs only once the
# main character's position is known (reference cull needs GetMainInstancePtr);
# until then the entity_spawned signal path keeps building nodes as before.
func _update_visibility() -> void:
	if not client.has_method("get_entities") or _main_vid == 0:
		return
	var main: Dictionary = client.get_entity(_main_vid)
	if main.is_empty() or not (main.get("pos_cm", null) is Vector3):
		return
	var mc: Vector3 = main["pos_cm"]
	var main_cm := Vector2(mc.x, mc.y)
	var cull := float(CHAR_STAGE_VIEW_BOUND + 10)
	for e in client.get_entities():
		var vid := int(e.get("vid", 0))
		if vid == 0 or vid == _local_vid or _fading.has(vid):
			continue
		var has_node := _by_vid.has(vid)
		var forced := vid == _main_vid or bool(e.get("is_main", false)) \
				or _show_always(e) or _is_wall(int(e.get("race", 0)))
		var dist := INF
		if e.get("pos_cm", null) is Vector3:
			dist = _planar_cm(e).distance_to(main_cm)
		if forced or dist < CHAR_STAGE_VIEW_BOUND:
			if not has_node:
				_on_spawn(e)
		elif has_node and dist > cull:
			_fade_and_free(vid)

# Distance test used both by the per-frame manager and the _on_spawn gate.
func _is_visible_entity(e: Dictionary) -> bool:
	var vid := int(e.get("vid", 0))
	if vid == _main_vid or bool(e.get("is_main", false)):
		return true
	if _show_always(e) or _is_wall(int(e.get("race", 0))):
		return true
	# Fail open when the data layer can't be queried or the main character has not
	# been located yet — keeps the spawn burst / fake-client tests behaving as
	# before; real gating kicks in once M2Client reports pos_cm + a main vid.
	if client == null or not client.has_method("get_entities") or _main_vid == 0:
		return true
	var main: Dictionary = client.get_entity(_main_vid)
	if main.is_empty() or not (main.get("pos_cm", null) is Vector3) \
			or not (e.get("pos_cm", null) is Vector3):
		return true
	var mc: Vector3 = main["pos_cm"]
	return _planar_cm(e).distance_to(Vector2(mc.x, mc.y)) < CHAR_STAGE_VIEW_BOUND

func _planar_cm(e: Dictionary) -> Vector2:
	var p: Variant = e.get("pos_cm", null)
	return Vector2(p.x, p.y) if p is Vector3 else Vector2.ZERO

func _show_always(e: Dictionary) -> bool:
	return (int(e.get("affect_flags", 0)) & AFFECT_SHOW_ALWAYS) != 0

func _is_wall(race: int) -> bool:
	return race in WALL_RACES

# §2.1 cull: keep the data row, blend the node out. It stays discoverable via
# _fading (so it is not rebuilt mid-blend) until the tween frees it.
func _fade_and_free(vid: int) -> void:
	var n: Node3D = _by_vid.get(vid, null)
	_by_vid.erase(vid)
	if not is_instance_valid(n):
		_fading.erase(vid)
		return
	_fading[vid] = true
	entity_removed.emit(vid)
	var tw := create_tween()
	tw.tween_property(n, "scale", Vector3.ONE * 0.01, 0.3)
	tw.tween_callback(func() -> void:
		if is_instance_valid(n):
			n.queue_free()
		_fading.erase(vid))

func _refresh_shop_sign(root: Node3D, sign: String) -> void:
	var tag := root.get_node_or_null("ShopSign") as Label3D
	var text := sign.strip_edges()
	if text == "":
		if tag:
			tag.queue_free()
		return
	if tag == null:
		tag = Label3D.new()
		tag.name = "ShopSign"
		tag.position.y = 3.0
		tag.billboard = BaseMaterial3D.BILLBOARD_ENABLED
		tag.no_depth_test = true
		tag.pixel_size = 0.0055
		tag.modulate = Color(1.0, 0.82, 0.25)
		tag.outline_size = 8
		root.add_child(tag)
	tag.text = text

func _display_name(d: Dictionary) -> String:
	if name_resolver.is_valid():
		var r: String = name_resolver.call(d)
		if r != "":
			return r
	return str(d.get("name", ""))

# --- §8.8 头顶名字色（CInstanceBase::GetNameColor）--------------------------------
# net_world 直接持有 M2Client，能自建 name_color_index 需要的会话上下文
# （net_play._attack_ctx 同款）。kind_resolver 由 game_scene 注入 net_play._entity_kind
# 以补本 fork「NPC/怪 bType 都是 0」的分类缺口；未注入时退化到 ch_type。

func _entity_kind_of(d: Dictionary) -> int:
	if kind_resolver.is_valid():
		return int(kind_resolver.call(d))
	return int(d.get("ch_type", 0))

func _name_color_ctx() -> Dictionary:
	var duel: Dictionary = client.get_duel() if client and client.has_method("get_duel") else {}
	var duel_mode := EntityRules.DUEL_NONE
	if bool(duel.get("active", false)):
		duel_mode = EntityRules.DUEL_CANNOTATTACK if bool(duel.get("cannot_attack", false)) \
				else EntityRules.DUEL_START
	var pvp_pairs: Array = []
	if client and client.has_method("get_pvp_relations"):
		for r in client.get_pvp_relations():
			if int(r.get("mode", 0)) != 0:
				pvp_pairs.append([int(r.get("src_vid", 0)), int(r.get("dst_vid", 0))])
	var gvg_pairs: Array = []
	if client and client.has_method("get_guild_wars"):
		for w in client.get_guild_wars():
			gvg_pairs.append([int(w.get("src", 0)), int(w.get("dst", 0))])
	var party_vids: Array = []
	if client and client.has_method("get_party"):
		for m in client.get_party():
			party_vids.append(int(m.get("vid", 0)))
	return {
		"main_vid": _main_vid,
		"duel_mode": duel_mode,
		"duel_opponents": duel.get("opponents", []),
		"pvp_pairs": pvp_pairs,
		"gvg_pairs": gvg_pairs,
		"party_vids": party_vids,
	}

func _main_name_snapshot() -> Dictionary:
	if _main_vid == 0 or client == null or not client.has_method("get_entity"):
		return {}
	var m: Dictionary = client.get_entity(_main_vid)
	if m.is_empty():
		return {}
	m = m.duplicate()
	m["kind"] = _entity_kind_of(m)
	return m

func _apply_name_color(vid: int) -> void:
	if vid == 0:
		return
	var n: Node3D = _by_vid.get(vid, null)
	if n == null or not is_instance_valid(n) or not n.has_node("Label3D"):
		return
	if client == null or not client.has_method("get_entity"):
		return
	var e: Dictionary = client.get_entity(vid)
	if e.is_empty():
		return
	var self_e := e.duplicate()
	self_e["kind"] = _entity_kind_of(e)
	var col := NameColor.name_color(self_e, _main_name_snapshot(), _name_color_ctx())
	(n.get_node("Label3D") as Label3D).modulate = col

func _retint_all_names() -> void:
	if client == null or not client.has_method("get_entity"):
		return
	var ctx := _name_color_ctx()
	var main_e := _main_name_snapshot()
	for vid in _by_vid.keys():
		var n: Node3D = _by_vid[vid]
		if not is_instance_valid(n) or not n.has_node("Label3D"):
			continue
		var e: Dictionary = client.get_entity(int(vid))
		if e.is_empty():
			continue
		var self_e := e.duplicate()
		self_e["kind"] = _entity_kind_of(e)
		(n.get_node("Label3D") as Label3D).modulate = NameColor.name_color(self_e, main_e, ctx)

# constinfo.SET_CHRNAME_COLOR_INDEX 对应的运行期开关（默认关）。改后立即整表重刷。
func set_empire_name_mode(enabled: bool) -> void:
	NameColor.set_empire_name_mode(enabled)
	_retint_all_names()

# --- §8.8 头顶「公会名 / 称号 / 等级」标签（CInstanceBase::RefreshTextTail 系）--------
# _apply_name_color 的姊妹：把 self_e 快照喂给 text_tail.gd，落到 GuildTag/TitleTag/LevelTag。

func _resolve_title_name(grade: int) -> String:
	if title_name_resolver.is_valid():
		var s: String = str(title_name_resolver.call(grade))
		if s != "":
			return s
	return TextTail.title_name_key(grade)  # seam ⑧：未注入 Locale -> 裸 key

func _resolve_guild_name(guild_id: int) -> String:
	if guild_id != 0 and client and client.has_method("get_guild_name"):
		return str(client.get_guild_name(guild_id))
	return ""

func _apply_text_tail_to(n: Node3D, e: Dictionary) -> void:
	if n == null or not is_instance_valid(n):
		return
	var alignment := int(e.get("alignment", 0))
	var level := int(e.get("level", 0))
	var guild_id := int(e.get("guild", 0))
	var shown := _name_shown(n)

	var gtag := n.get_node_or_null("GuildTag") as Label3D
	if gtag:
		var g := TextTail.refresh_guild(guild_id, _resolve_guild_name(guild_id))
		gtag.text = g["name"] if g["show_guild"] else ""
		gtag.modulate = g["color"]
		gtag.visible = shown and gtag.text != ""

	var ttag := n.get_node_or_null("TitleTag") as Label3D
	if ttag:
		var t := TextTail.refresh_title(alignment)
		ttag.text = _resolve_title_name(int(t["grade"])) if t["show_title"] else ""
		ttag.modulate = t["color"]
		ttag.visible = shown and ttag.text != ""

	var ltag := n.get_node_or_null("LevelTag") as Label3D
	if ltag:
		var lv := TextTail.refresh_level(level)
		ltag.text = lv["text"] if lv["show_level"] else ""
		ltag.modulate = lv["color"]
		ltag.visible = shown and ltag.text != ""

	_apply_guild_mark(n, guild_id, gtag, shown)
	_layout_subtags_x(n, ttag, ltag)
	# Keep the mark on the same adjusted screen row as the name immediately on
	# spawn/info refresh, not only after the next chat-tail update.
	_reposition_name_tag(n)

# ArrangeTextTail 角色块（PythonTextTail.cpp:211-320 非 EUROPE 分支）的逐像素水平排布：
#   称号在名字锚点左侧 nameW/2 + 8、等级再往左一个称号宽（无称号时 nameW/2 + 4）、
#   名字本身右移 fxAdd（8 / 4 / 0）。公会名的水平锚点参考端只在「有公会徽记」时才改写，
#   poc 无徽记 -> GuildTag 留 x = 0（名字中线正上方）。文本宽度取各 Label3D 的真实字体度量
#   （TextMetrics.label_width = GetTextSize 1:1，增量 123；SUBTAG_CHAR_W_PX 仅作无字体兜底）。
#   经 name_tail_layout.gd 纯静态镜像。
func _layout_subtags_x(n: Node3D, ttag: Label3D, ltag: Label3D) -> void:
	var nlbl := n.get_node_or_null("Label3D") as Label3D
	var gtag := n.get_node_or_null("GuildTag") as Label3D
	var mark := n.get_node_or_null("GuildMark") as Sprite3D
	var has_title := ttag != null and ttag.text != ""
	var has_level := ltag != null and ltag.text != ""
	var name_w := 0.0
	if nlbl:
		name_w = maxf(1.0, TextMetrics.label_width(nlbl, SUBTAG_CHAR_W_PX))
	var title_w := 0.0
	if has_title:
		title_w = maxf(1.0, TextMetrics.label_width(ttag, SUBTAG_CHAR_W_PX))
	if nlbl:
		nlbl.position.x = NameTailLayout.subtag_world_x(
				NameTailLayout.name_x_shift(has_title, has_level), nlbl.pixel_size)
	if ttag:
		ttag.position.x = NameTailLayout.subtag_world_x(
				NameTailLayout.title_x_offset(name_w), ttag.pixel_size) if has_title else 0.0
	if ltag:
		ltag.position.x = NameTailLayout.subtag_world_x(
				NameTailLayout.level_x_offset(name_w, title_w, has_title), ltag.pixel_size) if has_level else 0.0
	if gtag:
		if mark != null and mark.texture != null and gtag.text != "":
			var guild_w := maxf(1.0, TextMetrics.label_width(gtag, SUBTAG_CHAR_W_PX))
			var mark_w := maxf(1.0, float(mark.texture.get_width()))
			gtag.position.x = NameTailLayout.subtag_world_x(
				NameTailLayout.guild_name_x_offset(mark_w), gtag.pixel_size)
			mark.position.x = NameTailLayout.subtag_world_x(
				NameTailLayout.mark_x_offset(guild_w, mark_w), mark.pixel_size)
		else:
			gtag.position.x = 0.0   # 无已下载会徽时保持参考端 if(pMark && pGuild) 不成立
			if mark:
				mark.position.x = 0.0

func _apply_guild_mark(n: Node3D, guild_id: int, guild_tag: Label3D, shown: bool) -> void:
	# CPythonTextTail only creates pMarkInstance when a guild id resolves to a
	# downloaded mark.  Do not leave a stale image after a guild change or a
	# mark-table refresh that no longer contains this guild.
	var mark := n.get_node_or_null("GuildMark") as Sprite3D
	if guild_id == 0 or guild_tag == null or guild_tag.text == "" \
			or client == null or not client.has_method("get_guild_mark_image"):
		if mark:
			mark.queue_free()
		return
	var img: Image = client.get_guild_mark_image(guild_id)
	if img == null or img.get_width() <= 0 or img.get_height() <= 0:
		if mark:
			mark.queue_free()
		return
	if mark == null:
		mark = Sprite3D.new()
		mark.name = "GuildMark"
		mark.billboard = BaseMaterial3D.BILLBOARD_ENABLED
		mark.no_depth_test = true
		mark.pixel_size = 0.005
		mark.texture_filter = BaseMaterial3D.TEXTURE_FILTER_NEAREST
		n.add_child(mark)
	mark.texture = ImageTexture.create_from_image(img)
	mark.visible = shown
	mark.set_meta("guild_id", guild_id)

func _refresh_guild_mark(guild_id: int) -> void:
	if guild_id == 0 or client == null or not client.has_method("get_entities"):
		return
	for vid in _by_vid.keys():
		var n: Node3D = _by_vid[vid]
		if not is_instance_valid(n):
			continue
		var e: Dictionary = client.get_entity(int(vid))
		if int(e.get("guild", 0)) == guild_id:
			_apply_text_tail_to(n, e)

func _apply_text_tail(vid: int) -> void:
	if vid == 0 or client == null or not client.has_method("get_entity"):
		return
	var n: Node3D = _by_vid.get(vid, null)
	if n == null or not is_instance_valid(n):
		return
	var e: Dictionary = client.get_entity(vid)
	if e.is_empty():
		return
	_apply_text_tail_to(n, e)

func _retint_all_text_tails() -> void:
	if client == null or not client.has_method("get_entity"):
		return
	for vid in _by_vid.keys():
		var n: Node3D = _by_vid[vid]
		if not is_instance_valid(n):
			continue
		var e: Dictionary = client.get_entity(int(vid))
		if e.is_empty():
			continue
		_apply_text_tail_to(n, e)

# CPythonTextTail::EnablePKTitle（game.py:155 用 constInfo.PVPMODE_ENABLE 初始化）。
func set_pk_title_enabled(enabled: bool) -> void:
	TextTail.set_pk_title_enabled(enabled)
	_retint_all_text_tails()

func _on_despawn(vid: int) -> void:
	_duel_opponents.erase(vid)
	_fading.erase(vid)
	_chat_tails.erase(vid)
	_remove_hp_bar(vid)
	var n: Node3D = _by_vid.get(vid, null)
	if n:
		_by_vid.erase(vid)
		n.queue_free()
		entity_removed.emit(vid)

func _on_main_set(vid: int) -> void:
	_main_vid = vid
	var n: Node3D = _by_vid.get(vid, null)
	if n:
		main_entity_ready.emit(n, vid)
	# 主角变化会改写所有 PC 的相对名字色（同帝国 / PVP / 决斗 / 队伍判定都相对主角）。
	_retint_all_names()

func _on_moved(_vid: int) -> void:
	pass   # 插值在 _process 里统一做

# GC_MOTION and ServerCommand emotion commands share CRaceMotionData IDs in
# the 40250 client.  Keep the raw event visible to gameplay and ask real PC
# views to play the matching one-shot action; placeholders still retain the
# authoritative motion metadata and state tint.
func _on_motion(vid: int, victim_vid: int, motion: int) -> void:
	var n: Node3D = _by_vid.get(vid, null)
	if n == null and vid == _local_vid:
		n = _local_node
	motion_event.emit(vid, victim_vid, motion)
	if n == null:
		return
	n.set_meta("last_motion", motion)
	n.set_meta("motion_victim_vid", victim_vid)
	var target: Node3D = _by_vid.get(victim_vid, null)
	if target and target != n:
		var flat := target.global_position
		flat.y = n.global_position.y
		if n.global_position.distance_squared_to(flat) > 0.001:
			n.look_at(flat, Vector3.UP)
	var target_race := -1
	if client:
		var target_entity: Dictionary = client.get_entity(victim_vid)
		if not target_entity.is_empty():
			target_race = int(target_entity.get("race", -1))
	var applied := false
	if n.has_method("set_motion_id"):
		applied = bool(n.call("set_motion_id", motion, target_race))
	if not applied:
		var state := "attack"
		if motion >= 305:
			state = "emotion"
		elif motion >= 1 and motion <= 3:
			state = "wait" if motion == 1 else ("walk" if motion == 2 else "run")
		elif motion == 5 or motion == 6 or motion == 8 or motion == 9:
			state = "damage"
		elif motion == 11 or motion == 12:
			state = "dead"
		if n.has_method("set_anim_state"):
			n.call("set_anim_state", state)
		else:
			n.set_meta("motion_state", state)

# GC_PVP: 显示当前与任一角色的挑战 / 战斗 / 复仇关系。原客户端同时会影响
# TargetBoard 和名字颜色；这里先提供始终可见的世界标签，避免关系状态无表现。
func _on_pvp_changed(src_vid: int, dst_vid: int, mode: int) -> void:
	if src_vid == 0 or dst_vid == 0:
		return
	var key := _pvp_key(src_vid, dst_vid)
	if mode == 0:
		_pvp_relations.erase(key)
	else:
		_pvp_relations[key] = {"src_vid": src_vid, "dst_vid": dst_vid, "mode": mode}
	_refresh_pvp_tag(src_vid)
	_refresh_pvp_tag(dst_vid)
	_apply_name_color(src_vid)
	_apply_name_color(dst_vid)

func _pvp_key(a: int, b: int) -> String:
	return "%d:%d" % [min(a, b), max(a, b)]

func _pvp_mode_for(vid: int) -> int:
	for relation in _pvp_relations.values():
		if int(relation.get("src_vid", 0)) == vid or int(relation.get("dst_vid", 0)) == vid:
			return int(relation.get("mode", 0))
	return 0

func _refresh_pvp_tag(vid: int) -> void:
	var n: Node3D = _by_vid.get(vid, null)
	if n == null:
		return
	var mode := _pvp_mode_for(vid)
	var tag := n.get_node_or_null("PvpTag") as Label3D
	var in_duel := _duel_opponents.has(vid)
	if mode == 0 and not in_duel:
		if tag:
			tag.queue_free()
		return
	if tag == null:
		tag = Label3D.new()
		tag.name = "PvpTag"
		tag.position.y = 2.7
		tag.billboard = BaseMaterial3D.BILLBOARD_ENABLED
		tag.no_depth_test = true
		tag.pixel_size = 0.0045
		n.add_child(tag)
	if in_duel:
		tag.text = "决斗"
		tag.modulate = Color(0.45, 0.85, 1.0)
		return
	match mode:
		1:
			tag.text = "挑战"
			tag.modulate = Color(1.0, 0.85, 0.25)
		2:
			tag.text = "PVP"
			tag.modulate = Color(1.0, 0.25, 0.25)
		3:
			tag.text = "复仇"
			tag.modulate = Color(1.0, 0.45, 0.1)
		_:
			tag.text = "PVP"
			tag.modulate = Color.WHITE

func _on_duel_changed(duel: Dictionary) -> void:
	_duel_opponents.clear()
	_duel_cannot_attack = bool(duel.get("cannot_attack", false))
	for vid in duel.get("opponents", []):
		var opponent := int(vid)
		if opponent != 0:
			_duel_opponents[opponent] = true
	for vid in _by_vid.keys():
		_refresh_pvp_tag(int(vid))
		_apply_name_color(int(vid))

# 头顶聊天 / 信息尾标（CPythonTextTail::RegisterChatTail / RegisterInfoTail）。
# 每 vid 一条 "bubble" 子节点，LivingTime 到点（默认 5s）由 _expire_chat_tails 硬删——
# 参考端无淡出。本地玩家 vid 走 main_bubble 信号让上层（game_scene._player_bubble）处理。
signal main_bubble(text: String)

func _bubble(vid: int, text: String) -> void:
	# CPythonTextTail::RegisterChatTail —— 普通聊天尾标（白、bNameFlag TRUE）
	if vid == _local_vid or vid == 0:
		main_bubble.emit(text)
		return
	var n: Node3D = _by_vid.get(vid, null)
	if n == null:
		return
	_apply_chat_tail(n, ChatTail.register_chat(_chat_tails, vid, text, Time.get_ticks_msec()))

func register_info_tail(vid: int, text: String) -> void:
	# CPythonTextTail::RegisterInfoTail —— 信息尾标（淡红、bNameFlag FALSE）。
	# game.py:930 / :936 技能 / 射击错误尾标走这里；与聊天尾标共用同一张 _chat_tails。
	if vid == _local_vid or vid == 0:
		main_bubble.emit(text)
		return
	var n: Node3D = _by_vid.get(vid, null)
	if n == null:
		return
	_apply_chat_tail(n, ChatTail.register_info(_chat_tails, vid, text, Time.get_ticks_msec()))

func _apply_chat_tail(n: Node3D, tail: Dictionary) -> void:
	var lbl := n.get_node_or_null("bubble") as Label3D
	if lbl == null:
		lbl = Label3D.new()
		lbl.name = "bubble"
		lbl.position.y = BUBBLE_TAG_Y
		lbl.billboard = BaseMaterial3D.BILLBOARD_ENABLED
		lbl.no_depth_test = true
		lbl.pixel_size = 0.0055
		lbl.outline_size = 6
		n.add_child(lbl)
	lbl.text = String(tail.get("text", ""))
	lbl.modulate = tail.get("color", ChatTail.CHAT_COLOR)
	# UpdateAllTextTail：chat 尾标 bNameFlag TRUE 时强制显示该角色名字（不受 3500 限制）。
	_set_name_visibility(n)
	# UpdateShowingTextTail :110-114：有「聊天」气泡（bNameFlag）时名字尾标顶到气泡上方 17px。
	_reposition_name_tag(n)

func _expire_chat_tails() -> void:
	# UpdateAllTextTail：LivingTime < now 即删除对应 "bubble" 节点
	for vid in ChatTail.expire(_chat_tails, Time.get_ticks_msec()):
		var n: Node3D = _by_vid.get(vid, null)
		if n:
			var lbl := n.get_node_or_null("bubble")
			if lbl:
				lbl.queue_free()
			# 尾标没了 -> bNameFlag 强显撤销，名字回到 __IsShowName / 距离裁决。
			_set_name_visibility(n)
			# 气泡没了 -> 名字尾标从「贴气泡上方」回默认局部 y（chat 尾标不在
			# m_ChatTailMap 里，UpdateShowingTextTail :110 的 find 落空）。
			_reposition_name_tag(n)

# CPythonTextTail::UpdateShowingTextTail :101-118 —— 角色名字尾标投影后，若该 VID 有一条
#   「聊天」气泡（m_ChatTailMap 命中且 bNameFlag TRUE，即 RegisterChatTail 而非
#   RegisterInfoTail），把名字尾标顶到气泡上方 17px（屏幕 y - 17 → poc 世界 y + 17*pixel_size）。
#   经 name_tail_layout.gd 纯静态镜像。
func _reposition_name_tag(n: Node3D) -> void:
	if n == null or not is_instance_valid(n):
		return
	var tag := n.get_node_or_null("Label3D") as Label3D
	if tag == null:
		return
	var vid := int(n.get_meta("vid", 0))
	var ct: Variant = _chat_tails.get(vid, null)
	var has_tail := ct is Dictionary
	var name_flag := has_tail and bool((ct as Dictionary).get("name_flag", false))
	var follows := NameTailLayout.name_follows_bubble(has_tail, name_flag)
	tag.position.y = NameTailLayout.name_tail_world_y(
			NAME_TAG_DEFAULT_Y, BUBBLE_TAG_Y, follows, tag.pixel_size)
	# ArrangeTextTail :228/:258/:283 —— 公会名 / 称号 / 等级子标签都锚在名字尾标 pTextTail->y
	#   上，名字因聊天气泡上移时三者整体跟随同一段位移（seam ⑦ 仅剩竖排像素排布近似）。
	var lift := NameTailLayout.name_tail_lift_delta(
			NAME_TAG_DEFAULT_Y, BUBBLE_TAG_Y, follows, tag.pixel_size)
	for sub_name in SUBTAG_DEFAULT_Y:
		var st := n.get_node_or_null(sub_name) as Label3D
		if st:
			st.position.y = NameTailLayout.subtag_world_y(SUBTAG_DEFAULT_Y[sub_name], lift)
	var mark := n.get_node_or_null("GuildMark") as Sprite3D
	if mark:
		# ArrangeTextTail :227 puts the mark 26 px above the name instance; it
		# follows the same already-adjusted name y when a chat tail is active.
		mark.position.y = NAME_TAG_DEFAULT_Y + NameTailLayout.MARK_ABOVE_NAME_PX * tag.pixel_size + lift

func _on_vitals(vid: int) -> void:
	var n: Node3D = _by_vid.get(vid, null)
	var e: Dictionary = client.get_entity(vid)
	if e.is_empty():
		return
	var hp := int(e.get("hp", 0))
	var max_hp := int(e.get("max_hp", 0))
	var dead := bool(e.get("dead", false))
	vitals.emit(vid, hp, max_hp, dead)
	_sync_hp_bar_values(vid, hp, max_hp, dead)

func _on_dead(vid: int) -> void:
	var n: Node3D = _by_vid.get(vid, null)
	if n == null:
		return
	# 倒地 + 变灰（服务端随后会发 GC_CHARACTER_DEL 再真正移除）
	var t := create_tween()
	t.tween_property(n, "rotation:x", deg_to_rad(-80.0), 0.3)
	if n.has_method("set_anim_state"):
		n.call("set_anim_state", "dead")

# P6：飞行道具（GC_CREATE_FLY）—— 从 start 实体飞向 end 实体 / 坐标。原客户端在
# GC_CREATE_FLY 之前可能只收到 FLY_TARGETING（target VID=0 时是坐标），所以这里也消费
# shooter 的目标队列，避免远端技能没有终点被静默丢弃。§3.6：交给 FlyManager 跑真实弹道
# （CFlyingManager::CreateIndexedFly 的 INDEX_FLY_TYPE_NORMAL 分支：起点取射手像素位、
# 终点取目标 actor、canAttack=false —— 命中 / 伤害是服务端权威，客户端只做可视 + 命中时机）。
func _on_fly(_type: int, start_vid: int, end_vid: int) -> void:
	var a: Vector3 = _entity_pos(start_vid)
	var b: Vector3 = _entity_pos(end_vid)
	var target_node: Node3D = _by_vid.get(end_vid, null)
	var shooter: Node3D = _by_vid.get(start_vid, null)
	if b == Vector3.INF and shooter:
		var target: Dictionary = {}
		var queued: Variant = shooter.get_meta("fly_target_queue", [])
		if queued is Array and not queued.is_empty():
			target = queued.pop_front()
			shooter.set_meta("fly_target_queue", queued)
		var target_vid := int(target.get("vid", 0))
		if target_vid != 0:
			b = _entity_pos(target_vid)
			target_node = _by_vid.get(target_vid, null)
		else:
			var target_cm: Variant = target.get("cm", null)
			if target_cm is Vector2:
				b = _server_cm_to_world(target_cm)
				target_node = null
	if a == Vector3.INF or b == Vector3.INF or parent == null:
		return
	if _fly_mgr == null:
		return
	_fly_mgr.parent = parent
	_fly_mgr.world = world
	var start_w := a + Vector3(0, 1.0, 0)
	var goal_w := b + Vector3(0, 1.0, 0)
	# POC 无 .fly 加载器：合成一组弓箭弹道参数（换算成米），其余留 CFlyingData 默认。
	var d = FlyObject.FlyData.new()
	d.init_vel = 45.0                                        # ~4500 cm/s 的箭速
	d.flat_range = maxf(start_w.distance_to(goal_w) * 1.5, 30.0)
	d.bomb_range = 0.6                                       # 60 cm 命中球
	d.pierce_count = 0
	var tgt: Variant = target_node if is_instance_valid(target_node) else goal_w
	_fly_mgr.spawn(start_w, tgt, false, d, _type)

# GC_FLY_TARGETING / GC_ADD_FLY_TARGETING — retain the authoritative target on
# the shooter node so a later projectile cue can use it even before a target
# entity exists (target VID 0 carries an explicit coordinate).
func _on_fly_targeting(shooter_vid: int, target_vid: int, target_cm: Vector2, append: bool) -> void:
	var shooter: Node3D = _by_vid.get(shooter_vid, null)
	if shooter:
		var queued: Array = []
		var previous: Variant = shooter.get_meta("fly_target_queue", [])
		if append and previous is Array:
			queued = previous
		queued.append({"vid": target_vid, "cm": target_cm})
		shooter.set_meta("fly_target_queue", queued)
		shooter.set_meta("fly_target_vid", target_vid)
		shooter.set_meta("fly_target_cm", target_cm)
		shooter.set_meta("fly_target_append", append)
	fly_targeting.emit(shooter_vid, target_vid, target_cm, append)

func _server_cm_to_world(cm: Vector2) -> Vector3:
	var p := MapCoord.to_world(Vector3(cm.x * 0.01, 0.0, -cm.y * 0.01))
	if world and world.has_method("sample_height"):
		p.y = float(world.call("sample_height", p.x, p.z)) + 0.6
	else:
		p.y = 0.6
	return p

# 实体世界坐标（Godot 米）；找不到返回 Vector3.INF
func _entity_pos(vid: int) -> Vector3:
	var e: Dictionary = client.get_entity(vid) if client else {}
	if not e.is_empty() and e.get("pos", null) is Vector3:
		return MapCoord.to_world(e["pos"])
	var n = _by_vid.get(vid, null)
	if is_instance_valid(n):
		return (n as Node3D).global_position
	return Vector3.INF

func _on_dig_motion(vid: int, target_vid: int, count: int) -> void:
	var n: Node3D = _by_vid.get(vid, null)
	if n == null:
		return
	n.set_meta("dig_count", count)
	n.set_meta("dig_target_vid", target_vid)
	var target: Node3D = _by_vid.get(target_vid, null)
	if target and target != n:
		var flat := target.global_position
		flat.y = n.global_position.y
		if n.global_position.distance_squared_to(flat) > 0.001:
			n.look_at(flat, Vector3.UP)
	if n.has_method("set_anim_state"):
		n.call("set_anim_state", "dig")

# GC_FISHING: `info` is the fisher VID for motion subheaders. Keep the
# authoritative direction and state on the entity; real PlayerView/MobView
# assets may provide matching fishing animations, while placeholders still
# expose the event to gameplay/UI code.
func _on_fishing_event(subheader: int, info: int, dir: int) -> void:
	# FISH carries an item vnum in `info`, not a fisher VID; leave it to the
	# fishing UI / inventory event consumer.
	if info == 0 or subheader == 5:
		return
	var n: Node3D = _by_vid.get(info, null)
	if n == null:
		return
	n.set_meta("fishing_subheader", subheader)
	n.set_meta("fishing_dir", dir)
	var state := "fishing"
	match subheader:
		1: state = "wait"          # STOP
		2: state = "fishing_react" # REACT
		3: state = "fishing_catch" # SUCCESS
		4: state = "fishing_fail"  # FAIL
	if n.has_method("set_anim_state"):
		n.call("set_anim_state", state)
	fishing_event.emit(info, subheader, dir)

# GC_DAMAGE_INFO -> RecvDamageInfoPacket -> CInstanceBase::AddDamageEffect。
#   damage_number 信号是本移植扩展（战斗日志 / 测试消费），始终发；
#   飘字本体照 AddDamageEffect：仅 IsShowDamage() 时入 m_DamageQueue，ProcessDamage 每帧 pop 一条。
func _on_damage(vid: int, amount: int, flag: int) -> void:
	var crit := (flag & DamageEffect.DAMAGE_CRITICAL) != 0
	var dodge := (flag & DamageEffect.DAMAGE_DODGE) != 0
	damage_number.emit(vid, amount, crit, dodge)
	if not DamageEffect.valid_amount(amount):
		return                              # RecvDamageInfoPacket：damage < 0 -> TraceError，不处理
	if not DamageEffect.should_queue(_show_damage):
		return                              # AddDamageEffect：!IsShowDamage() -> 不入队
	_damage_queue.append({
		"vid": vid, "amount": amount, "flag": flag,
		"self": DamageEffect.is_self(vid, _main_vid),
		"target": DamageEffect.is_target(vid, _target_vid),
	})

# ProcessDamage：每帧 pop_front 一条。DODGE|BLOCK -> "MISS"；nontarget 数字 -> 不渲染；
#   其余把 amount 铺一块 billboard Label3D（seam ⑪：无 damagevalue dds 图集 / 逐位特效）。
func _process_damage_queue() -> void:
	if _damage_queue.is_empty():
		return
	var d: Dictionary = _damage_queue.pop_front()
	var n: Node3D = _by_vid.get(int(d["vid"]), null)
	if n == null or not is_instance_valid(n) or parent == null:
		return
	var info := DamageEffect.classify(int(d["flag"]), bool(d["self"]), bool(d["target"]))
	if not info["show"]:
		return                              # ProcessDamage：nontarget_ 后直接 return（不渲染）
	var text := "MISS"
	if info["kind"] == DamageEffect.Kind.DIGITS:
		if DamageEffect.digits(int(d["amount"])).is_empty():
			return                          # while(damage>0) 零次 -> 无贴图
		text = str(int(d["amount"]))
	# self 数字：SELFDAMAGE / SELFDAMAGE2 交替（seam ⑪：退化成落字水平抖动符号交替）。
	var jitter := 0.0
	if bool(d["self"]) and info["kind"] == DamageEffect.Kind.DIGITS:
		jitter = 0.3 if DamageEffect.self_damage_slot(_dmg_self_toggle) == 0 else -0.3
		_dmg_self_toggle = not _dmg_self_toggle
	var lbl := Label3D.new()
	lbl.text = text
	lbl.modulate = Color(1, 1, 1)           # 该 build 无独立暴击 / self 颜色（ProcessDamage）
	lbl.font_size = 32
	lbl.billboard = BaseMaterial3D.BILLBOARD_ENABLED
	lbl.no_depth_test = true
	lbl.pixel_size = 0.007
	parent.add_child(lbl)
	lbl.global_position = n.global_position + Vector3(jitter, 1.9, 0)
	var tw := create_tween()
	tw.set_parallel(true)
	tw.tween_property(lbl, "global_position:y", lbl.global_position.y + 1.2, 0.8)
	tw.tween_property(lbl, "modulate:a", 0.0, 0.8).set_delay(0.3)
	tw.chain().tween_callback(lbl.queue_free)

func _process(dt: float) -> void:
	if client == null or parent == null:
		return
	_update_visibility()
	_process_damage_queue()   # §8.8：m_DamageQueue 每帧 pop 一条（CInstanceBase::ProcessDamage）
	# §8.8：名字色随队伍 / 帝国名色模式 / PVP·决斗边沿变化——用 ~2Hz 节流整表刷新
	# 兜底（单发路径已覆盖 spawn/info/pvp/duel/main_set；参考端每帧都算 GetNameColor）。
	_name_color_accum += dt
	if _name_color_accum >= 0.5:
		_name_color_accum = 0.0
		_retint_all_names()
		_retint_all_text_tails()
		_expire_chat_tails()
		# §8.4 / §8.6：ShowAllTextTail 的 3500 平面距随主角 / 实体移动变化 —— 逐帧太密，
		# 用同一 ~2Hz 节流兜底（LALT / 选项 / 选中 / 尾标切换已各自即时刷新）。
		_refresh_all_name_visibility()
	for vid in _by_vid.keys():
		var n: Node3D = _by_vid[vid]
		if not is_instance_valid(n):
			_by_vid.erase(vid)
			continue
		var e: Dictionary = client.get_entity(vid)
		if e.is_empty():
			continue
		# §3.2：位置插值现在完全在 C++ EntityStore::tick() 里做（命令队列 +
		# SNetworkActorData::UpdatePosition 式线性插值），这里只跟随 e.pos，不再
		# 叠第二层 follow_lerp——否则会把 C++ 的到达时机拖慢、和动作事件脱节。
		var want := _grounded(e.get("pos", n.position))
		n.position = want
		# 朝向：Metin2 heading(度) -> Godot yaw。经验换算，真机再校准。
		var yaw := MapCoord.heading_to_yaw(float(e.get("angle_deg", 0.0)))
		n.rotation.y = lerp_angle(n.rotation.y, yaw, clampf(10.0 * dt, 0.0, 1.0))
		# 动画状态
		var f := int(e.get("func", FUNC_WAIT))
		var moving := bool(e.get("moving", false))
		var walk_mode := int(e.get("walk_mode", 1))
		if f != int(n.get_meta("func", -1)) or moving != bool(n.get_meta("moving", false)) \
				or walk_mode != int(n.get_meta("walk_mode", -1)):
			n.set_meta("func", f)
			n.set_meta("moving", moving)
			n.set_meta("walk_mode", walk_mode)
			_apply_anim(n, f, moving, walk_mode)
	_update_hp_bars()

func _apply_anim(n: Node3D, f: int, moving: bool, walk_mode := 1) -> void:
	var state := "wait"
	if f == FUNC_MOVE or (f == FUNC_WAIT and moving):
		state = "walk" if walk_mode == 0 else "run"
	elif f == FUNC_ATTACK or f == FUNC_COMBO:
		state = "attack"
	elif f == FUNC_MOB_SKILL or (f & FUNC_SKILL) != 0:
		state = "skill"
	elif f == FUNC_EMOTION:
		state = "emotion"
	if n.has_method("set_anim_state"):
		n.call("set_anim_state", state)
	# 占位胶囊（无 set_anim_state）不再借头顶名字 Label3D 的 modulate 表现动作态——
	# 该 modulate 现在专属 §8.8 名字色（GetNameColor）。

func _grounded(p: Variant) -> Vector3:
	# p 是 M2Client 的网络帧 pos —— 先转到 Metin2World 本地帧，再贴地。
	var v: Vector3 = MapCoord.to_world(p) if p is Vector3 else Vector3.ZERO
	if world and world.has_method("sample_height"):
		v.y = float(world.call("sample_height", v.x, v.z))
	return v

func _make_placeholder(d: Dictionary) -> Node3D:
	var root := Node3D.new()
	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()
	var is_main := bool(d.get("is_main", false))
	mat.albedo_color = Color(0.35, 0.6, 1.0) if is_main else Color(0.85, 0.4, 0.35)
	mesh.material_override = mat
	root.add_child(mesh)
	_attach_nameplate(root, d)
	return root

# 头顶名字 Label3D + 屏幕空间 HP 条（占位胶囊和真模型共用）。HP 条由
# _ensure_hp_overlay() 创建到 CanvasLayer，_update_hp_bars() 负责世界坐标投影。
func _attach_nameplate(root: Node3D, d: Dictionary) -> void:
	var tag := Label3D.new()
	tag.name = "Label3D"
	var nm := _display_name(d)
	tag.text = nm if nm != "" else "vid %d" % int(d.get("vid", 0))
	tag.position.y = NAME_TAG_DEFAULT_Y
	tag.billboard = BaseMaterial3D.BILLBOARD_ENABLED
	tag.no_depth_test = true
	tag.pixel_size = 0.006
	tag.visible = false   # _on_spawn 随后 _set_name_visibility(node) 按 __IsShowName / 距离定夺
	root.add_child(tag)
	# §8.8 头顶「公会名 / 称号 / 等级」子标签（CPythonTextTail 的 pGuildNameTextInstance /
	# pTitleTextInstance / pLevelTextInstance）。参考端是屏幕空间：公会名在名字上方
	# c_fyGuildNamePosition(15px)、称号 / 等级贴右侧。这里在 billboard 3D 里近似成竖排
	# （公会名上、称号 / 等级下），精确像素排版差异记为 §8.8 seam ⑦。内容 / 颜色由
	# _apply_text_tail 按 RefreshTextTail / AttachTitle / AttachLevel 决定，初始空 = 隐藏。
	root.add_child(_mk_sub_tag("GuildTag", SUBTAG_DEFAULT_Y["GuildTag"], TextTail.GUILD_NAME_COLOR))
	root.add_child(_mk_sub_tag("TitleTag", SUBTAG_DEFAULT_Y["TitleTag"], Color(1, 1, 1)))
	root.add_child(_mk_sub_tag("LevelTag", SUBTAG_DEFAULT_Y["LevelTag"], TextTail.LEVEL_COLOR))

func _mk_sub_tag(sub_name: String, y: float, col: Color) -> Label3D:
	var t := Label3D.new()
	t.name = sub_name
	t.text = ""
	t.position.y = y
	t.billboard = BaseMaterial3D.BILLBOARD_ENABLED
	t.no_depth_test = true
	t.pixel_size = 0.005
	t.modulate = col
	t.visible = false
	return t

func _ensure_hp_overlay() -> void:
	if _hp_layer != null and is_instance_valid(_hp_layer):
		return
	_hp_layer = CanvasLayer.new()
	_hp_layer.name = "ScreenHpLayer"
	_hp_layer.layer = 5
	add_child(_hp_layer)
	_hp_overlay = Control.new()
	_hp_overlay.name = "HpOverlay"
	_hp_overlay.set_anchors_preset(Control.PRESET_FULL_RECT)
	_hp_overlay.mouse_filter = Control.MOUSE_FILTER_IGNORE
	_hp_layer.add_child(_hp_overlay)

func _make_hp_bar(vid: int, e: Dictionary) -> Control:
	_ensure_hp_overlay()
	var bar := _hp_bars.get(vid, null) as Control
	if bar == null or not is_instance_valid(bar):
		bar = ScreenHpBar.new()
		bar.name = "hp_%d" % vid
		_hp_overlay.add_child(bar)
		_hp_bars[vid] = bar
	_sync_hp_bar_values(vid, int(e.get("hp", 0)), int(e.get("max_hp", 0)),
			bool(e.get("dead", false)))
	return bar

func _sync_hp_bar(vid: int, e: Dictionary) -> void:
	if vid == 0 or e.is_empty():
		return
	_make_hp_bar(vid, e)
	_sync_hp_bar_values(vid, int(e.get("hp", 0)), int(e.get("max_hp", 0)),
			bool(e.get("dead", false)))

func _sync_hp_bar_values(vid: int, hp: int, max_hp: int, dead: bool) -> void:
	var bar := _hp_bars.get(vid, null) as Control
	if bar == null or not is_instance_valid(bar):
		return
	if bar.has_method("set_vitals"):
		bar.call("set_vitals", hp, max_hp, dead)
	bar.visible = max_hp > 0 and not dead

func _remove_hp_bar(vid: int) -> void:
	var bar := _hp_bars.get(vid, null) as Control
	_hp_bars.erase(vid)
	if bar != null and is_instance_valid(bar):
		bar.queue_free()

func _clear_hp_bars() -> void:
	for vid in _hp_bars.keys():
		var bar := _hp_bars[vid] as Control
		if bar != null and is_instance_valid(bar):
			bar.queue_free()
	_hp_bars.clear()

func _update_hp_bars() -> void:
	if _hp_bars.is_empty():
		return
	var cam := _camera
	if cam == null or not is_instance_valid(cam):
		cam = get_viewport().get_camera_3d()
	var viewport_size := get_viewport().get_visible_rect().size
	if cam == null or viewport_size.x <= 0.0 or viewport_size.y <= 0.0:
		for bar in _hp_bars.values():
			if is_instance_valid(bar):
				bar.visible = false
		return
	var viewport_rect := Rect2(Vector2.ZERO, viewport_size).grow(HP_BAR_SCREEN_MARGIN)
	for vid in _hp_bars.keys():
		var bar := _hp_bars[vid] as Control
		var node := _by_vid.get(vid, null) as Node3D
		if bar == null or not is_instance_valid(bar) or node == null \
				or not is_instance_valid(node):
			if bar != null and is_instance_valid(bar):
				bar.visible = false
			continue
		var e: Dictionary = client.get_entity(int(vid))
		var max_hp := int(e.get("max_hp", 0))
		var dead := bool(e.get("dead", false))
		if max_hp <= 0 or dead:
			bar.visible = false
			continue
		var anchor := node.global_position + Vector3(0.0, HP_BAR_WORLD_Y, 0.0)
		if cam.is_position_behind(anchor):
			bar.visible = false
			continue
		var screen_pos := cam.unproject_position(anchor)
		if not viewport_rect.has_point(screen_pos):
			bar.visible = false
			continue
		bar.position = screen_pos - Vector2(bar.size.x * 0.5, 0.0)
		bar.visible = true