first commit

Assets/_Scripts/HintManager.cs

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+using System.Collections;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class HintManager : MonoBehaviour
+{
+    public static HintManager Instance { get; private set; }
+
+    public GameObject hintPanel;
+    public Text hintText;
+
+    private Coroutine hideRoutine;
+
+    private void Awake()
+    {
+        if (Instance != null && Instance != this)
+        {
+            Destroy(gameObject);
+            return;
+        }
+
+        Instance = this;
+        HideHint();
+    }
+
+    public void ShowHint(string text, float duration)
+    {
+        if (hintPanel == null || hintText == null)
+        {
+            return;
+        }
+
+        // Restarting the timer lets stronger narrative hints replace short interaction prompts.
+        hintText.text = text;
+        hintPanel.SetActive(true);
+
+        if (hideRoutine != null)
+        {
+            StopCoroutine(hideRoutine);
+        }
+
+        hideRoutine = StartCoroutine(HideAfterDelay(duration));
+    }
+
+    public void HideHint()
+    {
+        if (hintPanel != null)
+        {
+            hintPanel.SetActive(false);
+        }
+    }
+
+    private IEnumerator HideAfterDelay(float delay)
+    {
+        yield return new WaitForSeconds(delay);
+        HideHint();
+        hideRoutine = null;
+    }
+}