Removed TOTU 103

Assets/Common/Scripts/ScrollingLog.cs

@@ -0,0 +1,94 @@
+// Copyright 2022-2024 Niantic.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace Niantic.ARDKExamples.Helpers
+{
+  // Simple scrolling window that prints to the application screen whatever is printed through
+  // calls to the UnityEngine.Debug.Log method.
+  [DefaultExecutionOrder(Int32.MinValue)]
+  public class ScrollingLog:
+    MonoBehaviour
+  {
+    /// Font size for log text entries. Spacing between log entries is also set to half this value.
+    [SerializeField]
+    private int LogEntryFontSize = 32;
+
+    /// The maximum number of log entries to keep history of
+    [SerializeField][Range(1, 100)]
+    private int MaxLogCount = 100;
+
+    /// Layout box containing the log entries
+    [SerializeField]
+    private VerticalLayoutGroup LogHistory = null;
+
+    /// Log entry prefab used to generate new entries when requested
+    [SerializeField]
+    private Text LogEntryPrefab = null;
+
+    private readonly List<Text> _logEntries = new List<Text>();
+
+    private static ScrollingLog _instance;
+
+    private void Awake()
+    {
+      _instance = this;
+      LogHistory.spacing = LogEntryFontSize / 2f;
+    }
+
+    private void OnEnable()
+    {
+        // Using logMessageReceived (instead of logMessageReceivedThreaded) to ensure that
+        // HandleDebugLog is only called from one thread (the main thread).
+        Application.logMessageReceived += AddLogEntry;
+    }
+
+    private void OnDisable()
+    {
+        Application.logMessageReceived -= AddLogEntry;
+    }
+
+    private void OnDestroy()
+    {
+      _instance = null;
+    }
+
+    // Creates a new log entry using the provided string.
+    private void AddLogEntry(string str, string stackTrace, LogType type)
+    {
+      var newLogEntry = Instantiate(LogEntryPrefab, Vector3.zero, Quaternion.identity);
+      newLogEntry.text = str;
+      newLogEntry.fontSize = LogEntryFontSize;
+      newLogEntry.color = Color.white;
+
+      var transform = newLogEntry.transform;
+      transform.SetParent(LogHistory.transform);
+      transform.localScale = Vector3.one;
+
+      _logEntries.Add(newLogEntry);
+
+      if (_logEntries.Count > MaxLogCount)
+      {
+        var textObj = _logEntries.First();
+        _logEntries.RemoveAt(0);
+        Destroy(textObj.gameObject);
+      }
+    }
+
+    public static void Clear()
+    {
+      if (_instance == null)
+        return;
+
+      foreach (var entry in _instance._logEntries)
+        Destroy(entry.gameObject);
+
+      _instance._logEntries.Clear();
+    }
+  }
+}