40 lines
1.2 KiB
GDScript
40 lines
1.2 KiB
GDScript
@tool
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extends RefCounted
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class_name ReedSceneIDEditorSystem
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const DB_PATH := "res://addons/reedscene/demo/data_base/GLOBAL_SCENE_ID.tres"
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static func _load_db_readonly() -> SceneIDDatabase:
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# 忽略缓存，避免拿到同一个共享实例（更稳）
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return ResourceLoader.load(DB_PATH, "", ResourceLoader.CACHE_MODE_IGNORE)
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static func _clone_db_to_new(db_ro: SceneIDDatabase) -> SceneIDDatabase:
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var db := SceneIDDatabase.new()
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if db_ro:
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db.next_id = db_ro.next_id
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# 深拷贝 Dictionary，彻底断开只读引用链
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db.scene_map = db_ro.scene_map.duplicate(true)
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return db
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static func request_id_for_scene(scene_path: String) -> int:
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var db_ro := _load_db_readonly()
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if db_ro == null:
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push_error("[ReedSceneIDEditorSystem] Database not found: " + DB_PATH)
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return -1
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var db : SceneIDDatabase = _clone_db_to_new(db_ro)
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if db.scene_map.has(scene_path):
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return int(db.scene_map[scene_path])
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var new_id :int = db.next_id
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db.next_id += 1
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db.scene_map[scene_path] = new_id
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var err := ResourceSaver.save(db, DB_PATH)
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if err != OK:
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push_error("[ReedSceneIDEditorSystem] Failed to save DB (%s), err=%d" % [DB_PATH, err])
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return -1
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return new_id
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