Text image format converter

ConvertImagesToTest.cs

#if UNITY_EDITOR

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using System;

using System.IO;

[ExecuteInEditMode]
public class ConvertImagesToText : MonoBehaviour {

    /// <summary>
    /// Texture that will be converted into text. It needs Read/Write Enabled or the script won't be able to read pixels
    /// </summary>
    public Texture2D sourceTexture;

    /// <summary>
    /// Text file that will be converted back into a PNG
    /// </summary>
    public TextAsset sourceText;
    
    public bool convertNow = false;
	
	void Update () {
        if (convertNow)
        {
            if (sourceTexture!=null)
            {
                SaveImageAsText();
            } else if (sourceText!=null)
            {
                SaveTextAsImage();
            }
            convertNow = false;
        }
	}

    private void SaveTextAsImage()
    {
        //load height and width of image
        //generate new image
        //write pixel based on R G B values for each pixel
        //save as PNG 
        var filePath = string.Format("{0}/{1}.png", Application.dataPath, sourceText.name);
        var splitFile = new string[] { "\r\n", "\r", "\n" };
        var splitLine = new char[] { '|' };
        var lines = sourceText.text.Split(splitFile, StringSplitOptions.RemoveEmptyEntries);
        var dimensions = lines[0].Split(',');
        var temptexture = new Texture2D( int.Parse(dimensions[0]), int.Parse(dimensions[1]), TextureFormat.RGB24, false);
        for (int y = 0; y < temptexture.height; y++)
        {
            var currentLine = (lines[y + 1]).Split(splitLine);
            for (int x = 0; x < temptexture.width; x++)
            {
                var newColour = Color.white;
                ColorUtility.TryParseHtmlString("#"+currentLine[x], out newColour);
                temptexture.SetPixel(x, y, newColour);
            }
        }
        var outputBytes = ImageConversion.EncodeToPNG(temptexture);
        File.WriteAllBytes(filePath, outputBytes);
    }

    private void SaveImageAsText()
    {
        //create new text file
        //save height and width of image
        //save R G B values for each pixel in image
        //close text file        
        var filePath = string.Format("{0}/{1}.txt", Application.dataPath, sourceTexture.name);
        Debug.Log(filePath);
        StreamWriter writer = new StreamWriter(filePath, true);
        writer.WriteLine(string.Format("{0},{1}, Text image format, converter here: https://gist.github.com/partybusiness/9d32e50f65fd923f087d1c39420a4285 ", sourceTexture.width, sourceTexture.height));
        for (int y = 0; y < sourceTexture.height; y++)
        {
            var stringList = new List<string>();
            for (int x = 0; x < sourceTexture.width; x++)
            {
                var col = sourceTexture.GetPixel(x, y);
                stringList.Add(ColorUtility.ToHtmlStringRGB(col));
            }
            writer.WriteLine(string.Join("|", stringList.ToArray()));
        }
        writer.Close();
    }
}
#endif