40 lines
1.5 KiB
GDScript
40 lines
1.5 KiB
GDScript
extends Control
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## 测试数据：模拟 sect_data 里的嵌套资源（分类 → 子项）
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var test_resources := [
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{"name": "粮草", "items": [{"name": "米", "quantity": 10}, {"name": "蔬菜", "quantity": 20}]},
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{"name": "丹药", "items": [{"name": "聚气丹", "quantity": 5}]},
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]
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func _ready() -> void:
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var tree: Tree = $ScrollContainer/Tree
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tree.hide_root = true # 隐藏内部根，顶部就是"粮草/丹药"
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tree.columns = 2
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tree.item_selected.connect(_on_item_selected)
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_refresh(tree)
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pass
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## 每次数据变化后全量重建（简单可靠）
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func _refresh(tree: Tree) -> void:
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tree.clear()
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for category: Dictionary in test_resources:
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var cat_item := tree.create_item() # 无父 = 顶级项（挂在隐藏根下）
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cat_item.set_text(0, category["name"])
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cat_item.set_metadata(0, {"type": "category"})
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for sub: Dictionary in category["items"]:
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var item := tree.create_item(cat_item) # 子项
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item.set_text(0, sub["name"])
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item.set_text(1, str(sub["quantity"]))
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item.set_metadata(0, sub) # 存整条数据便于取用
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## 动态新增一项后刷新
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func _on_add_button() -> void: # 测试：手动调一次
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test_resources[0]["items"].append({"name": "灵米", "quantity": 99})
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_refresh($ScrollContainer/Tree)
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func _on_item_selected() -> void:
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var tree: Tree = $ScrollContainer/Tree
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var selected := tree.get_selected()
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if selected != null:
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print(selected.get_text(0), " → ", selected.get_metadata(0))
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