STMRubyText.cs

//Copyright (c) 2019 Kai Clavier [kaiclavier.com] Do Not Distribute
using UnityEngine;
using System.Collections;
using System.Collections.Generic;
/*
Preparse STM, insert events at specific characters (H becomes <e=rt,aytch>H)
If auto parse is off, manually type ruby text like "<e=rt,aytch>H" ("rt" means ruby text event, "aytch" is the ruby text to be shown.)
these new events spawn temporary STM objects
 */
[RequireComponent(typeof(SuperTextMesh))]
public class STMRubyText : MonoBehaviour {
    private SuperTextMesh stm;
    public bool autoParse = true;

    public void OnEnable()
    {
        //get stm component
        stm = GetComponent<SuperTextMesh>();
        //set up events
        stm.OnCustomEvent += Event;
        if(autoParse)
        {
            stm.OnPreParse += Parse;
        }
        stm.OnRebuildEvent += ClearRubyText;
    }
    public void OnDisable()
    {
        stm.OnCustomEvent -= Event;
        if(autoParse)
        {
            stm.OnPreParse -= Parse;
        }
        stm.OnRebuildEvent -= ClearRubyText;
    }
    [System.Serializable]
    public class Ruby
    {
        public char ch;
        public string text;
    }
    public float verticalOffset = 0f;
    public float rubyTextSize = 0.25f;
    public Ruby[] ruby;
    private List<SuperTextMesh> rubyText = new List<SuperTextMesh>();

    public void Parse(STMTextContainer x)
    {
        //go thru each letter, searching ruby
        for(int i=0; i<x.text.Length; i++)
        {
            //search ruby to see if this letter is a match
            for(int j=0; j<ruby.Length; j++)
            {
                if(x.text[i] == ruby[j].ch)
                {
                    x.text = x.text.Insert(i, "<e=rt," + ruby[j].text + ">");
                    //skip over this new tag
                    i += 7 + ruby[j].text.Length;
                }
            }
        }
    }
    private string[] split;
    private SuperTextMesh tempStm;
    private Vector3 tmpPos;
    public void Event(string text, STMTextInfo info)
    {
        split = text.Split(',');
        //if exactly two strings and first is the rt tag...
        if(split.Length == 2 && split[0] == "rt")
        {
            //create a new STM, and assign the remaining text to it
            tempStm = new GameObject().AddComponent<SuperTextMesh>();
            tempStm.t.SetParent(this.transform); //parent it to this
            tempStm.t.name = split[1];
            //center above letter
            tmpPos.x = info.Middle.x;
            tmpPos.y = info.pos.y + info.size + verticalOffset;
            tempStm.t.localPosition = tmpPos;

            tempStm.size = rubyTextSize;
            tempStm.font = stm.font;
            tempStm.color = stm.color;

            tempStm.anchor = TextAnchor.LowerCenter;
            tempStm.alignment = SuperTextMesh.Alignment.Center; //center above letter
            tempStm.autoWrap = info.RelativeWidth; //max width is letter width
            tempStm.bestFit = SuperTextMesh.BestFitMode.OverLimit; //shrink to fit if it goes over

            tempStm.text = split[1];

            rubyText.Add(tempStm); //add to list
        }
    }
    public void ClearRubyText()
    {
        //destroy gameobjects
        for(int i=0; i<rubyText.Count; i++){
            Destroy(rubyText[i].gameObject);
        }
        //clear list
        rubyText.Clear();
    }
}