104 lines
2.4 KiB
GDScript
104 lines
2.4 KiB
GDScript
# id (int) -> WeakRef(ReedScene)
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var _by_id: Dictionary = {}
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signal registered(id: int, node: ReedScene)
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signal unregistered(id: int)
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signal conflict(id: int, existing: ReedScene, incoming: ReedScene)
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# -------------------------
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# 注册
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# -------------------------
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func register(id: int, node: ReedScene) -> bool:
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if id < 0:
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push_error("[SceneRegistry] register(): invalid id (<0): %d" % id)
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return false
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if node == null:
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push_error("[SceneRegistry] register(): node is null for id=%d" % id)
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return false
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_cleanup_dead(id)
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if _by_id.has(id):
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var existing: ReedScene = _by_id[id].get_ref()
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if existing == node:
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return true # 重复注册同一个实例，忽略
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emit_signal("conflict", id, existing, node)
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push_error(
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"[SceneRegistry] Duplicate id=%d existing=%s incoming=%s"
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% [id, existing, node]
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)
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return false
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_by_id[id] = weakref(node)
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emit_signal("registered", id, node)
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return true
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# -------------------------
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# 注销
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# -------------------------
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func unregister(id: int, node: ReedScene = null) -> void:
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if not _by_id.has(id):
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return
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var existing: ReedScene = _by_id[id].get_ref()
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if node != null and existing != node:
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# 防止误删
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return
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_by_id.erase(id)
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emit_signal("unregistered", id)
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# -------------------------
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# 查询
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# -------------------------
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func get_scene(id: int) -> ReedScene:
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_cleanup_dead(id)
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var ref: WeakRef = _by_id.get(id)
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return ref.get_ref() if ref else null
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func has(id: int) -> bool:
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return get_scene(id) != null
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# -------------------------
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# 调用
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# -------------------------
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func call_scene(id: int, method: String, args: Array = []) -> Variant:
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var n := get_scene(id)
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if n == null:
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push_warning("[SceneRegistry] call_scene(): id not found: %d" % id)
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return null
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if not n.has_method(method):
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push_warning(
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"[SceneRegistry] call_scene(): id=%d has no method '%s'"
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% [id, method]
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)
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return null
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return n.callv(method, args)
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# -------------------------
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# 列表
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# -------------------------
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func list_ids() -> PackedInt32Array:
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for id in _by_id.keys():
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_cleanup_dead(id)
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var result := PackedInt32Array()
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for id in _by_id.keys():
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result.append(id)
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return result
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# -------------------------
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# 内部：清理死引用
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# -------------------------
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func _cleanup_dead(id: int) -> void:
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if not _by_id.has(id):
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return
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var ref: WeakRef = _by_id[id]
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if ref == null or ref.get_ref() == null:
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_by_id.erase(id)
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