public static Texture TextToTexture(string text, string alphabetTextureName)
{
string[] guids = AssetDatabase.FindAssets(alphabetTextureName + " t:texture");
if (guids.Length > 0)
{
string path = null;
foreach (string g in guids)
{
string p = AssetDatabase.GUIDToAssetPath(g);
if (p.Contains("/" + alphabetTextureName + "."))
{
path = p;
}
}
if (path == null)
{
Debug.LogWarning("Alphabet texture could not be found.");
return(null);
}
TextureImporter importer = (TextureImporter)TextureImporter.GetAtPath(path);
importer.isReadable = true;
importer.SaveAndReimport();
Texture2D alphabet_texture = AssetDatabase.LoadAssetAtPath <Texture2D>(path);
Color background = alphabet_texture.GetPixel(0, 0);
//load letter data from alphabet
int padding = 0;
int[][] letterSpaces = new int[62][];
int currentLetterIndex = -1;
bool wasLetter = false;
int pixelLetterFreshhold = 3;
for (int x = 0; x < alphabet_texture.width; x++)
{
int pixelIsLetter = 0;
for (int y = 0; y < alphabet_texture.height; y++)
{
if (Helper.ColorDifference(background, alphabet_texture.GetPixel(x, y)) > 0.01)
{
pixelIsLetter += 1;
}
}
bool isLetter = pixelIsLetter > pixelLetterFreshhold;
if (isLetter && !wasLetter)
{
currentLetterIndex += 1;
if (currentLetterIndex >= letterSpaces.Length)
{
break;
}
letterSpaces[currentLetterIndex] = new int[2];
letterSpaces[currentLetterIndex][0] = x;
}
else if (isLetter && wasLetter)
{
letterSpaces[currentLetterIndex][1] += 1;
}
else if (!isLetter)
{
padding += 1;
}
wasLetter = isLetter;
}
int spaceWidth = 0;
foreach (int[] s in letterSpaces)
{
if (s != null)
{
spaceWidth += s[1];
}
}
spaceWidth /= 62;
padding /= 61;
int a = 97;
int A = 65;
int zero = 48;
int space = 32;
int totalWidth = 0;
int[] letterIndecies = new int[text.Length];
// text to alphabet texture letter indecies
int i = 0;
foreach (char c in text)
{
if ((int)c == 10)
{
continue;
}
int letterIndex = 0;
if ((int)c - a >= 0)
{
letterIndex = ((int)c - a) * 2 + 1;
}
else if ((int)c - A >= 0)
{
letterIndex = ((int)c - A) * 2;
}
else if ((int)c - zero >= 0)
{
letterIndex = 52 + (int)c - zero;
}
else if ((int)c - space >= 0)
{
letterIndex = -1;
}
//Debug.Log("Char: " + c +","+ (int)c+","+letterIndex);
letterIndecies[i] = letterIndex;
if (letterIndex == -1)
{
totalWidth += spaceWidth;
}
else
{
totalWidth += letterSpaces[letterIndex][1] + padding;
}
i++;
}
Texture2D text_texture = new Texture2D(totalWidth, alphabet_texture.height);
Debug.Log("Padding: " + padding);
Debug.Log("Total width: " + totalWidth);
// indecies to texture
int letterX = 0;
for (i = 0; i < letterIndecies.Length; i++)
{
//Debug.Log(i + "," + letterIndecies[i]);
if (letterIndecies[i] == -1)
{
for (int x = 0; x < spaceWidth; x++)
{
for (int y = 0; y < text_texture.height; y++)
{
text_texture.SetPixel(letterX + x, y, background);
}
}
letterX += spaceWidth;
}
else
{
for (int x = 0; x < letterSpaces[letterIndecies[i]][1] + padding; x++)
{
for (int y = 0; y < text_texture.height; y++)
{
text_texture.SetPixel(letterX + x, y, alphabet_texture.GetPixel(letterSpaces[letterIndecies[i]][0] + x - padding / 2, y));
}
}
letterX += letterSpaces[letterIndecies[i]][1] + padding;
}
}
string file_name = "text_" + Regex.Replace(text, @"\s", "_");
string save_path = "Assets/Textures/Text/" + file_name + ".png";
return(Helper.SaveTextureAsPNG(text_texture, save_path, null));
}
else
{
Debug.LogWarning("Alphabet texture could not be found.");
}
return(null);
}
