nicoloddo/x-tree-search
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h� � �& � d dl mZ G d� de� Zy)� )� MarkovChainc �f � � e Zd ZdZ� fd�Z G d� dej � Zd d�Zd� Z d� Z3d� Z � xZ S )4�TreeaW 5 Manages the tree structure including the root and the ability to expand the tree from each node.6 The nodes names are ids that refer to the path needed to reach them.7 The root node has id=0.8 A subsequent node would be for example:9 "0102" which means that to get there you need: root.children[1].children[0].children[2]10 c �L �� t �| � � | j � | _ y �N)�super�__init__�_Tree__add_node�root)�self� __class__s ��TC:\Users\nicom\Projects\x-tree-search\workspace\x-tree-search\src\structures\tree.pyr z
Tree.__init__ s �� �
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Tree.TreeNodea� 11 Represents a single node in a tree.12 13 Attributes:14 parent (TreeNode): The TreeNode parent of this node. If it is None, this is the root node, identified with the id:"0".15 is_leaf (bool): Indicates whether this node is a leaf of the tree.16 value (object): Any object can be assigned to a node value.17 children (list) (derived): A list of Node instances that are the children of this node (derived property from the original MarkovNode.connections attribute)18 children_and_probs (list) (derived): List of tuples containing children of this node and the respective transition probability19 c �� �� || _ || _ d| _ g | _ g | _ |d k( rd}n.|j20 dz t
t |j � � z }t �| �% |� y )NT�0�_)21�parent�value�is_leaf�children_and_probs�children�id�str�lenr r )r r r �node_idr
s �r r zTree.TreeNode.__init__ s` �� � �D�K� �D�J� �D�L�&(�D� #� �D�M���~� �� �)�)�c�/�C��F�O�O�0D�,E�E�� �G� �W� %r c � � | j ||� t | j � dkD rd| _ | j � y )Nr F)�_MarkovNode__add_connectionr � connectionsr �update_children_and_probs)r �child� probabilitys r �22_add_childzTree.TreeNode._add_child( s8 � � � ,� ,�U�K� @��4�#�#�$�q�(� $�� � � *� *� ,r c �b � | j j � | _ | j � y)zeUpdates the list of tuples containing children of this node and the respective transition probabilityN)r �itemsr �update_children�r s r r! z'Tree.TreeNode.update_children_and_probs. s% � �&*�&6�&6�&<�&<�&>�D� #� � � � "r c �R � | j D �cg c] }|d �� c}| _ yc c}w )z/Updates the list of children nodes of this noder N)r r )r �ts r r' z Tree.TreeNode.update_children3 s' � �+/�+B�+B� C�+B�a�Q�q�T�+B� C�D�M�� Cs � $c � � | j S r ��namer( s r r zTree.TreeNode.id7 s � ��9�9� r c � � || _ y r r, )r r s r r zTree.TreeNode.id; s � � �D�Ir ) �__name__�23__module__� __qualname__�__doc__r r$ r! r' �propertyr �setter�
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s @r �TreeNoder sI �� � � &� -� #�24 D� 25� � 26� � 27 ��� � 28� r r7 c �\ � | j ||� }|| j |j < |S )zEOverrides the add_node method to ensure TreeNode objects are created.)r7 �nodesr )r r r �new_nodes r �29__add_nodezTree.__add_node? s) � ��=�=���/��"*��30�31�8�;�;� ��r c � � | j | }|D ]5 }| j ||�� }dt |� z }|j ||� �7 y)z�32 Expands a node with a given amount of children and their values33 34 Args:35 node (str): The id of the node to expand with new children.36 children_values (list of numbers): Values to assign to the children nodes.37 )r r � N)r9 r38 r r$ )r r �children_valuesr r r" r# s r � set_childrenzTree.set_childrenE sM � � ���G�$��$�E��O�O�6��O�?�E��C�� 0�0�K� � � �e�[� 1� %r c � � | j | S )zp39 Returns a node given its id.40 41 Args:42 node (str): The id of the node to get.43 )r9 )r r s r �get_nodez
Tree.get_nodeS s � � �z�z�'�"�"r c �� � d}| j j � D ]R \ }}|d|� d�z
}|j D ]5 \ }}||j � d|j � � d|j44 � d�z
}�7 �T |S )NzTree45z46Node: z 47Children:48z49 with P = z and value V = �50)r9 r& r r �itemr )r �resultr �noder" �probs r �__str__z Tree.__str__\ s| � ��� !�Z�Z� -� -� /�M�G�T� ��� � �7� 7�F� #� 6� 6� ��t��U�X�X�J�j�����
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r/ r0 r1 r2 r r �51MarkovNoder7 r52 r? rA rH r5 r6 s @r r r s4 �� ��&�. �;�)�)� . �`� 2� #�r r N)�src.structures.markov_chainr r � r r �<module>rL s �� 3�_�;� _r