0.22.1

Assets/AddressableAssetsData/AssetGroups/Default Local Group.asset

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Assets/Scenes/Test.meta

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Assets/Scenes/Test/TrieTest.unity.meta

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Assets/Scripts/XRLib/DataStructure.meta

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Assets/Scripts/XRLib/DataStructure/Trie.cs

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+using System.Collections.Generic;
+
+namespace XRLib.Collections
+{
+    public class Trie
+    {
+        private readonly TrieNode root;
+
+        public Trie()
+        {
+            root = new TrieNode();
+        }
+
+        public void Insert(string word)
+        {
+            var currentNode = root;
+            foreach (var ch in word)
+            {
+                if (!currentNode.Children.ContainsKey(ch))
+                {
+                    currentNode.Children[ch] = new TrieNode();
+                }
+                currentNode = currentNode.Children[ch];
+            }
+            currentNode.IsEndOfWord = true;
+        }
+
+        public bool Search(string word)
+        {
+            var currentNode = root;
+            foreach (var ch in word)
+            {
+                if (!currentNode.Children.ContainsKey(ch))
+                {
+                    return false;
+                }
+                currentNode = currentNode.Children[ch];
+            }
+            return currentNode.IsEndOfWord;
+        }
+
+        public bool TryGetContainingWords(string substring, out List<string> result)
+        {
+            result = new List<string>();
+            CollectWordsContainingSubstring(root, "", substring, result);
+
+            if(result.Count == 0)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void CollectWordsContainingSubstring(TrieNode node, string currentWord, string substring, List<string> result)
+        {
+            if (node.IsEndOfWord && currentWord.Contains(substring))
+            {
+                result.Add(currentWord);
+            }
+
+            foreach (var child in node.Children)
+            {
+                CollectWordsContainingSubstring(child.Value, currentWord + child.Key, substring, result);
+            }
+        }
+    }
+}

Assets/Scripts/XRLib/DataStructure/Trie.cs.meta

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Assets/Scripts/XRLib/DataStructure/TrieNode.cs

@@ -0,0 +1,16 @@
+using System.Collections.Generic;
+
+namespace XRLib.Collections
+{
+    public class TrieNode
+    {
+        public Dictionary<char, TrieNode> Children { get; private set; }
+        public bool IsEndOfWord { get; set; }
+
+        public TrieNode()
+        {
+            Children = new Dictionary<char, TrieNode>();
+            IsEndOfWord = false;
+        }
+    }
+}

Assets/Scripts/XRLib/DataStructure/TrieNode.cs.meta

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Assets/Scripts/XRLib/DataStructure/TrieTest.cs

@@ -0,0 +1,57 @@
+using System.Collections.Generic;
+using TMPro;
+using UnityEngine;
+
+namespace XRLib.Collections
+{
+    public class TrieTest : MonoBehaviour
+    {
+        public TMP_InputField input;
+        public TMP_InputField search;
+        public TextMeshProUGUI prf_InputText;
+        public TextMeshProUGUI searchResult;
+        public List<TextMeshProUGUI> inputs = new ();
+
+        private Trie trie;
+
+        private void Awake()
+        {
+            trie = new Trie();
+            input.onEndEdit.AddListener((s) => Insert());
+            search.onValueChanged.AddListener((s) => Search());
+        }
+
+        public void Insert()
+        {
+            if(input.text.Length == 0)
+            {
+                return;
+            }
+
+            if(trie.Search(input.text))
+            {
+                return;
+            }
+
+            trie.Insert(input.text);
+            var t = Instantiate(prf_InputText, prf_InputText.transform.parent);
+            t.GetComponent<TextMeshProUGUI>().SetText(input.text);
+            inputs.Add(t);
+            t.transform.position = new Vector3(t.transform.position.x, t.transform.position.y + inputs.Count * 30, t.transform.position.z);
+            input.text = "";
+        }
+
+        public void Search()
+        {
+            if(search.text.Length == 0)
+            {
+                searchResult.SetText("");
+                return;
+            }
+            if (trie.TryGetContainingWords(search.text, out var words))
+            {
+                searchResult.SetText(string.Join(", ", words));
+            }
+        }
+    }
+}

Assets/Scripts/XRLib/DataStructure/TrieTest.cs.meta

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README.md

@@ -1,3 +1,8 @@
+### 0.22.1 03-18
+```
+1. 검색용 자료구조 Trie 추가
+```
+
 ### 0.21.1 03-12
 ```
 1. 자산 속성창 추가