The "abort_tree " signal may have the wrong target object about godot-behavior-tree

[kagenash1]

It would be best if you create the behavior tree as a separate scene, that way it will have the correct target object.
But anyway I will find a way around this so they can be created locally as well, thank you for reporting!

[MadFlyFish]

Yep, actually I am creating the behavior tree as a separate scene, but the root node isn't the BehaviorTree node.
in my case , using owner.get_node("BehaviorTree") as the target object would solve this problem. : )

[kagenash1]

If the Behavior Tree is a separate scene, then the owner WILL be the root node.

[MadFlyFish]

I create the behavior tree scene by Xmind2Json, which uses recursion in the main processing function and as a result the root node isn't the BehaviorTree node... LOL
Maybe I should refactor it

class_name BtreeHandler
extends Reference

管理ai相关的处理，如从json生成行为树

var json_files_path:String = "res://resource/data/ai/" # ai json 目录
var config_ai_path:String = "res://addons/behavior_tree/src/" # ai节点类目录
var data_ai:Dictionary # ai配置
var root:Node # 根节点

func _init():
data_ai = load("res://resource/data/config/config.gd").new().config_ai.data_ai # 因为这是在tool模式下，所以autoload是无法访问到的。

生成行为树PackedScene至特定目录

func create_tree_scene():
var file_handler = FileHandler.new() # 复用文件管理类
var files = file_handler.show_files("res://resource/data/ai") # 返回路径下的全部文件绝对路径（不包含文件夹）

for file in files:
	if ".json" in file and not ".import" in file: # 筛选json文件
		var file_name = file.split("/")[file.split("/").size() - 1] # 获取json文件命，包括后缀
		var node = Node.new() # 生成根节点
		node.name = file_name.split(".")[0].capitalize().replace(" ", "") # 命名为json的同名节点，去掉.json后缀，并且转换为Pacal模式
		creat_tree_nodes(file_name, node) # 对根节点生成完整的行为树

		var packed_scene = PackedScene.new() # 创建PackedScene对象
		packed_scene.pack(node) # 打包至PackedScene
		ResourceSaver.save("res://resource/btree/" + file_name.split(".")[0] + ".tscn", packed_scene) # 保存为本地文件
		print("保存成功：" + file_name.split(".")[0] + ".tscn")

生成行为树和黑板

func creat_tree_nodes(json_file_name:String, mount:Node):
# 生成黑板
var black_board = Blackboard.new()
black_board.name = "BlackBoard"
mount.add_child(black_board)
root = mount
black_board.owner = root

# 根据json和目标挂载点生成行为树
var json_file = File.new() # 新建文件类
json_file.open(json_files_path + json_file_name, File.READ) # 读取json文件
var json_string = json_file.get_as_text() # json转换为字符串
var json_result = JSON.parse(json_string) # 解析json字符串，转换为列表或者字典，此处是列表
var dict_result = json_result.result[0]["topic"] # 取得要处理的字典，等同于json_result.result[0].topic
creat_tree_by_dict(dict_result, mount)

根据json转成的dict和挂载点生成行为树（递归部分）

func creat_tree_by_dict(result:Dictionary, mount:Node):
var class_info_list:Array = result["title"].split("\n") # 用换行符切割字符串，返回列表
if result.has("note"): # 把笔记部分也考虑进来
class_info_list.append_array(result["note"].split("\n"))

var class_id:String = class_info_list[0] # 类名key
var script_path:String = config_ai_path + data_ai[class_id]["folder"] + data_ai[class_id]["script_name"]
var node = load(script_path).new() # 生成节点
mount.add_child(node) # 挂载节点
node.owner = root # 设置owner，否则保存为packScene将无法包含子节点
node.name = class_id # 命名节点

var class_member_list:Array = class_info_list.slice(1,class_info_list.size())
for member in class_member_list:
	var member_list:Array = member.split("=") # 储存成员-值对
	node.set(member_list[0], member_list[1]) # 为树节点成员赋值
# 递归处理
if result.has("topics"):
	for i in result["topics"]:
		creat_tree_by_dict(i, node)

[kagenash1]

Oh ok. That's because nodes added at runtime do not have a owner unless set explicitly.
But don't worry, I already found a very simple solution and I will push the fix soon. :

[kagenash1]

Fixed by #22

[MadFlyFish]

Oh ok. That's because nodes added at runtime do not have a owner unless set explicitly.
But don't worry, I already found a very simple solution and I will push the fix soon. :

Brilliant solution ^_^