1 files changed, 171 insertions, 0 deletions
diff --git a/WorldlineKeepers/Assets/ThirdParty/StringUtil/VTypingString.cs b/WorldlineKeepers/Assets/ThirdParty/StringUtil/VTypingString.cs
new file mode 100644
index 0000000..50b63e6
--- /dev/null
+++ b/WorldlineKeepers/Assets/ThirdParty/StringUtil/VTypingString.cs
@@ -0,0 +1,171 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+/// <summary>
+/// 优化打字功能的字符串
+/// </summary>
+public class VTypingString
+{
+    enum Tags
+    {
+        Color = 0,
+        Size,
+        B,
+        I
+    }
+
+
+    private VString allContentString;
+    private DoubleVString partialDisplayString;
+    private VString willShowString;
+
+    private int _timerMS;
+    private int _factor;
+    private int _miniSecondPerWord;
+
+    private static readonly string[] endTags = new string[] { "</color>", "</size>", "</b>", "</i>" };
+    private static readonly string[] startTags = new string[] { "<color", "<size", "<b", "<i" };
+    
+    List<int> endTagCaches = new List<int>();
+
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="text"></param>
+    /// <param name="miniSecondPerWord">出一个字符需要的毫秒时间</param>
+    public VTypingString(string text, int miniSecondPerWord = 240)
+    {
+        if(string.IsNullOrEmpty(text))
+        {
+            throw new ArgumentException("text is null or empty");
+        }
+
+        _miniSecondPerWord = Mathf.Max(miniSecondPerWord, 10);
+        allContentString = new VString(text.Length);
+        allContentString.Push(text);
+        partialDisplayString = new DoubleVString(text.Length);
+        willShowString = new VString(text.Length);
+        JumpToBegin();
+    }
+
+    public bool IsEnd()
+    {
+        return _factor > allContentString.GetString().Length;
+    }
+        
+    public string GetString()
+    {
+        return partialDisplayString.GetCurrentVString().GetString();
+    }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="deltaTimeMS"></param>
+    /// <returns>true表示触发了一次打字变化</returns>
+    public bool OnUpdate(int deltaTimeMS)
+    {
+        _timerMS += deltaTimeMS;
+        if(_timerMS >= _miniSecondPerWord)
+        {
+            _timerMS = 0;
+            OnTyping();
+            return true;
+        }
+        return false;
+    }
+
+    private void OnTyping()
+    {
+        if (CheckStart(Tags.Color)) { }
+        else if (CheckStart(Tags.Size)) { }
+        else if (CheckStart(Tags.B)) { }
+        else if (CheckStart(Tags.I)) { }
+        else
+        {
+            partialDisplayString.GetCurrentVString().Clear();
+            partialDisplayString.SwapVString();
+            partialDisplayString.GetCurrentVString().CopyFrom(allContentString, 0, Mathf.Min(_factor, allContentString.GetString().Length));
+            for (int i = endTagCaches.Count - 1; i >= 0; --i)
+            {
+                partialDisplayString.GetCurrentVString().Push(endTags[endTagCaches[i]]);
+            }
+            _factor++;
+        }
+    }
+
+    public void JumpToBegin()
+    {
+        _factor = 0;
+        _timerMS = -_miniSecondPerWord;
+        endTagCaches.Clear();
+        partialDisplayString.GetCurrentVString().Clear();
+        partialDisplayString.GetNextVString().Clear();
+    }
+
+    public void JumpToEnd()
+    {
+        _factor = allContentString.GetString().Length;
+        endTagCaches.Clear();
+        OnTyping();
+    }
+
+
+    bool CheckStart(Tags tag)
+    {
+        if (_factor >= allContentString.GetString().Length)
+        {
+            return false;
+        }
+
+        int iTag = (int)tag;
+        willShowString.CopyFrom(allContentString, _factor, allContentString.GetString().Length - _factor);
+        string willShow = willShowString.GetString();
+        string endTag = endTags[iTag];
+        if (willShow.StartsWith(startTags[iTag]))
+        {
+            int tagLeng = willShow.IndexOf(">") + 1;
+            _factor += tagLeng;
+            endTagCaches.Add(iTag);//倒叙
+
+            if (CheckStart(Tags.Color)) { }
+            else if (CheckStart(Tags.Size)) { }
+            else if (CheckStart(Tags.B)) { }
+            else if (CheckStart(Tags.I)) { }
+            else
+            {
+                return false;
+            }
+            return true;
+        }
+        else if (willShow.StartsWith(endTag))
+        {
+            int endleng = endTag.Length;//"</color>"的长度
+            _factor += endleng;
+            for (int i = endTagCaches.Count - 1; i >= 0; --i)
+            {
+                if(iTag == endTagCaches[i])
+                {
+                    endTagCaches.RemoveAt(i);
+                }
+            }
+
+            if (CheckStart(Tags.Color)) { }
+            else if (CheckStart(Tags.Size)) { }
+            else if (CheckStart(Tags.B)) { }
+            else if (CheckStart(Tags.I)) { }
+            else
+            {
+                return false;
+            }
+            return true;
+        }
+        return false;
+    }
+
+
+}