Initial commit: Unity 프로젝트 셋업 + 다이얼로그 시스템 이전

Assets/02_Scripts/UI/Communication/ChoiceHud.cs

@@ -0,0 +1,104 @@
+using System.Collections.Generic;
+using TMPro;
+using UnityEngine;
+
+// World-space 선택지 UI 싱글턴.
+// DialogPlayer가 Show()를 await해서 선택된 인덱스를 받아감.
+// 배치(Placement)는 DialogHud가 담당하므로, 이 오브젝트를 DialogHud의 자식으로 두면 함께 따라온다.
+public class ChoiceHud : MonoBehaviour
+{
+    public static ChoiceHud Instance { get; private set; }
+
+    [Header("Refs")]
+    [SerializeField] private GameObject _root;
+    [SerializeField] private Transform _rowContainer;
+    [SerializeField] private DialogChoiceRow _rowPrefab;
+    [SerializeField] private TMP_Text ChoiceQuestion;
+
+    private readonly List<DialogChoiceRow> _rows = new();
+    private AwaitableCompletionSource<int> _completion;
+
+    private void Awake()
+    {
+        if (Instance != null && Instance != this) { Destroy(gameObject); return; }
+        Instance = this;
+        if (_root == null) _root = gameObject;
+        Hide();
+    }
+
+    private void OnDestroy()
+    {
+        if (Instance == this) Instance = null;
+    }
+
+    private void OnDisable()
+    {
+        // 진행 중 대기 정리 (씬 전환 등으로 비활성화될 때)
+        _completion?.TrySetCanceled();
+        _completion = null;
+    }
+
+    public async Awaitable<int> Show(string choiceQuestion, List<DialogChoice> choices)
+    {
+        if (choices == null || choices.Count == 0) return 0;
+
+        SetQuestion(choiceQuestion);
+        ClearRows();
+        for (int i = 0; i < choices.Count; i++)
+        {
+            var row = Instantiate(_rowPrefab, _rowContainer);
+            row.Bind(i, DialogVariables.Format(choices[i].ChoiceText));   // {key} 토큰 치환
+            row.OnClicked += HandleClicked;
+            _rows.Add(row);
+        }
+
+        _root.SetActive(true);
+        _completion = new AwaitableCompletionSource<int>();
+
+        int result;
+        try
+        {
+            result = await _completion.Awaitable;
+        }
+        finally
+        {
+            _completion = null;
+            Hide();
+        }
+        return result;
+    }
+
+    private void HandleClicked(int index)
+    {
+        _completion?.TrySetResult(index);
+    }
+
+    private void Hide()
+    {
+        SetQuestion(null);
+        ClearRows();
+        if (_root != null) _root.SetActive(false);
+    }
+
+    // 질문이 비어 있으면 질문 텍스트 자체를 숨긴다. (기본값: 질문 없음 → 안 보임)
+    // 질문은 보통 노드의 대사(TalkText)로 대신하므로 ChoiceQuestion은 비워둬도 된다.
+    private void SetQuestion(string question)
+    {
+        if (ChoiceQuestion == null) return;
+        string text = DialogVariables.Format(question);   // {key} 토큰 치환
+        bool hasQuestion = !string.IsNullOrWhiteSpace(text);
+        ChoiceQuestion.text = hasQuestion ? text : string.Empty;
+        ChoiceQuestion.gameObject.SetActive(hasQuestion);
+    }
+
+    private void ClearRows()
+    {
+        foreach (var row in _rows)
+        {
+            if (row == null) continue;
+            row.OnClicked -= HandleClicked;
+            Destroy(row.gameObject);
+        }
+        _rows.Clear();
+    }
+}