288 lines
9.3 KiB
GDScript
288 lines
9.3 KiB
GDScript
class_name BaseLevel
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extends Node2D
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# 基础关卡脚本
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# 负责处理通用的关卡逻辑，如玩家生成
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const CHAT_UI_SCENE: PackedScene = preload("res://scenes/ui/ChatUI.tscn")
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const CHAT_UI_NODE_NAME: String = "ChatUI"
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const UI_LAYER_NODE_NAME: String = "UILayer"
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const UI_LAYER_ORDER: int = 10
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func _ready():
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_ensure_chat_ui()
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# 延时一帧确保所有子节点就绪
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call_deferred("_spawn_player")
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# 连接到多人会话
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# 获取当前场景名字作为 Session ID
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_current_session_id = SceneManager.get_current_scene_name()
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if _current_session_id == "":
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_current_session_id = "square"
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# 如果是私人场景，生成唯一的 Session ID (e.g., room_123)
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if _current_session_id in PRIVATE_SCENES:
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_current_session_id = _current_session_id + "_" + str(AuthManager.current_user_id)
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# 如果 WebSocket 已连接，直接加入
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if LocationManager._socket.get_ready_state() == WebSocketPeer.STATE_OPEN:
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_join_session_with_player(_current_session_id)
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else:
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# 否则等待连接成功信号
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LocationManager.connected_to_server.connect(func(): _join_session_with_player(_current_session_id))
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# 连接远程玩家相关信号
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LocationManager.session_joined.connect(_on_session_joined)
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LocationManager.user_joined.connect(_on_user_joined)
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LocationManager.user_left.connect(_on_user_left)
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LocationManager.position_updated.connect(_on_position_updated)
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func _ensure_chat_ui() -> void:
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var ui_layer := get_node_or_null(UI_LAYER_NODE_NAME) as CanvasLayer
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if ui_layer == null:
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ui_layer = CanvasLayer.new()
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ui_layer.name = UI_LAYER_NODE_NAME
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ui_layer.layer = UI_LAYER_ORDER
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add_child(ui_layer)
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var chat_ui := ui_layer.get_node_or_null(CHAT_UI_NODE_NAME)
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if chat_ui == null:
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chat_ui = CHAT_UI_SCENE.instantiate()
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chat_ui.name = CHAT_UI_NODE_NAME
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ui_layer.add_child(chat_ui)
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if chat_ui.has_method("hide_chat"):
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chat_ui.call_deferred("hide_chat")
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var remote_players: Dictionary = {} # userId -> RemotePlayer instance
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var remote_player_scene = preload("res://scenes/characters/remote_player.tscn")
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var _player_spawned: bool = false # Track if local player has been spawned
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var _local_player: Node = null # Reference to the local player node
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var _position_update_timer: float = 0.0 # Throttle timer for position updates
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var _current_session_id: String = "" # Cache session ID to avoid race condition on exit
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const POSITION_UPDATE_INTERVAL: float = 0.125 # Send at most 8 times per second
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const PRIVATE_SCENES = ["room"] # List of scenes that should be private instances
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func _on_session_joined(data: Dictionary):
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# 对账远程玩家列表，使用 position.mapId 过滤
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if not data.has("users"):
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return
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var current_map = _current_session_id
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if current_map == "":
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current_map = SceneManager.get_current_scene_name()
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if current_map == "":
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current_map = "square"
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# 1. 收集服务器返回的、且 mapId 匹配当前场景的用户ID
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var valid_user_ids: Array = []
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var valid_users: Dictionary = {} # userId -> user data
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for user in data.users:
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if not user.has("userId") or str(user.userId) == str(AuthManager.current_user_id):
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continue
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# 检查 position.mapId 是否匹配当前场景
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var user_map_id = ""
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if user.has("position") and user.position != null:
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if typeof(user.position) == TYPE_DICTIONARY and user.position.has("mapId"):
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user_map_id = str(user.position.mapId)
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if user_map_id == current_map:
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var uid = str(user.userId)
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valid_user_ids.append(uid)
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valid_users[uid] = user
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# 2. 清理幽灵：移除本地有但不在有效列表中的玩家
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var local_user_ids = remote_players.keys()
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for user_id in local_user_ids:
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if str(user_id) not in valid_user_ids:
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_remove_remote_player(user_id)
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# 3. 添加或更新有效的玩家
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for uid in valid_user_ids:
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var user = valid_users[uid]
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if remote_players.has(uid):
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# 已存在，更新位置
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_update_remote_player_position(user)
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else:
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_add_remote_player(user)
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func _on_user_joined(data: Dictionary):
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var user = data.get("user", {})
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if user.has("userId"):
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if user.userId == AuthManager.current_user_id:
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return
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# 将 position 数据合并到 user 字典中，以便 _add_remote_player 统一处理
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if data.has("position"):
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user["position"] = data.position
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_add_remote_player(user)
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func _on_user_left(data: Dictionary):
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var user_id = data.get("userId")
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if user_id:
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_remove_remote_player(user_id)
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func _on_position_updated(data: Dictionary):
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var user_id = data.get("userId")
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if user_id and remote_players.has(user_id):
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var player = remote_players[user_id]
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# 数据可能直接是位置（扁平）或者包含在 position 字段中
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# 根据后端协议: { userId:..., position: {x,y...}, ... }
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var pos_data = data.get("position", {})
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if pos_data.is_empty():
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pos_data = data
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# 检查 mapId 是否匹配当前场景
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if pos_data.has("mapId") and str(pos_data.mapId) != "":
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var current_map = _current_session_id
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if current_map == "":
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current_map = "square"
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if str(pos_data.mapId) != current_map:
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_remove_remote_player(user_id)
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return
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if player.has_method("update_position") and pos_data.has("x") and pos_data.has("y"):
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player.update_position(Vector2(pos_data.x, pos_data.y))
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func _add_remote_player(user_data: Dictionary):
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var user_id = str(user_data.get("userId", ""))
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if user_id == "":
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return
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# 防止重复创建
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if remote_players.has(user_id):
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return
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var remote_player = remote_player_scene.instantiate()
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# 使用统一的 setup 方法
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if remote_player.has_method("setup"):
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remote_player.setup(user_data)
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else:
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# 回退到手动设置位置
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remote_player.position = Vector2.ZERO
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if user_data.has("position"):
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var p = user_data.position
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if p.has("x") and p.has("y"):
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remote_player.position = Vector2(p.x, p.y)
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# 添加到场景玩家容器
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if has_node("Objects/Players"):
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$Objects/Players.add_child(remote_player)
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else:
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add_child(remote_player)
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remote_players[user_id] = remote_player
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func _remove_remote_player(user_id):
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var uid = str(user_id)
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if remote_players.has(uid):
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var player = remote_players[uid]
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if is_instance_valid(player):
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player.queue_free()
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remote_players.erase(uid)
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func _update_remote_player_position(user: Dictionary):
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var user_id = str(user.get("userId", ""))
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var player = remote_players.get(user_id)
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if not player or not is_instance_valid(player):
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return
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if user.has("position"):
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var pos = user.position
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if pos.has("x") and pos.has("y") and player.has_method("update_position"):
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player.update_position(Vector2(pos.x, pos.y))
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func _join_session_with_player(session_id: String):
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# 检查是否有Token，如果没有则等待
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if LocationManager._auth_token == "":
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# 轮询等待Token就绪 (简单重试机制)
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await get_tree().create_timer(0.5).timeout
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_join_session_with_player(session_id)
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return
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# 等待玩家生成完毕
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if not _player_spawned or not _local_player:
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await get_tree().process_frame
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_join_session_with_player(session_id)
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return
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var pos = _local_player.global_position if is_instance_valid(_local_player) else Vector2.ZERO
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LocationManager.join_session(session_id, pos)
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# 进入会话后立即同步一次位置
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await get_tree().create_timer(0.1).timeout
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LocationManager.send_position_update(session_id, pos)
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func _process(delta):
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# 发送位置更新 (节流机制)
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if not _player_spawned or not _local_player:
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return # Wait for player to be spawned
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if LocationManager._socket.get_ready_state() != WebSocketPeer.STATE_OPEN:
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return # WebSocket not connected
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if not is_instance_valid(_local_player):
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return # Player was freed
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# 检查 velocity 属性
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if not "velocity" in _local_player:
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return
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# 只有在移动时才更新计时器和发送
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if _local_player.velocity.length() > 0:
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_position_update_timer += delta
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if _position_update_timer >= POSITION_UPDATE_INTERVAL:
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_position_update_timer = 0.0
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var map_id = _current_session_id if _current_session_id != "" else "square"
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LocationManager.send_position_update(map_id, _local_player.global_position)
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func _spawn_player():
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# 1. 确定出生位置
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var spawn_pos = Vector2.ZERO
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var spawn_name = SceneManager.get_next_spawn_name()
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# 查找逻辑：优先查找名为 spawn_name 的节点，其次找 DefaultSpawn
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var target_node_name = spawn_name if spawn_name != "" else "DefaultSpawn"
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var marker_node = null
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# 策略 A: 在 SpawnPoints 容器中查找
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if has_node("SpawnPoints"):
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marker_node = $SpawnPoints.get_node_or_null(target_node_name)
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# 策略 B: 如果没找到，在当前节点(根节点)下查找
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if marker_node == null:
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marker_node = get_node_or_null(target_node_name)
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# 如果找到了标记点，使用其位置
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if marker_node:
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spawn_pos = marker_node.global_position
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else:
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# 策略 C: 检查 SceneManager 是否有备用坐标
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var pos_param = SceneManager.get_next_scene_position()
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if pos_param != null:
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spawn_pos = pos_param
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else:
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push_warning("BaseLevel: 出生点 '%s' 不存在，使用默认坐标 (0, 0)" % target_node_name)
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# 2. 实例化玩家
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var player_scene = preload("res://scenes/characters/player.tscn")
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var player = player_scene.instantiate()
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player.global_position = spawn_pos
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# 添加到场景
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# 如果有Objects/Players容器则添加进去，否则直接添加到当前节点
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if has_node("Objects/Players"):
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$Objects/Players.add_child(player)
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else:
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add_child(player)
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_local_player = player
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_player_spawned = true
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