Russian Font in LibGDX (any size)

package ru.codeuniverse.gdx.utils;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.files.FileHandle;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator;
import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator.FreeTypeFontParameter;

/**
 * My utilities to work with Fonts in LibGDX
 *
 */
public final class GDXFontUtils {

     private final static String tag = GDXFontUtils.class.getName(); // for logging

    /**
     * Takes TTF Font and font size and returns Bitmap with the font scaled to that
     * size. Given TTF Font shall support Russian. Returned BitmapFont has Russian
     * (and English) characters enabled.
     *
     * Uses Gdx-freetype Genertor - see
     * https://github.com/libgdx/libgdx/wiki/Gdx-freetype
     *
     * @param ttfFontPathAndName - just "Roboto_Black.ttf" if inside assets folder
     *                           root, "fonts/Roboto_Black.ttf" if inside
     *                           assets/fonts, "mydir1/dir2/file.ttf" in any
     *                           non-assets folder
     */
    public static BitmapFont generateFont(String ttfFontPathAndName, int fontSize) {
        BitmapFont result = new BitmapFont();

        String ruCharacters = "АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ" + "абвгдеёжзийклмнопрстуфхцчшщъыьэюя";

        String engCharacters = "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz";

        String extraCharacters = "1234567890.,:;_!?\\\\";

        // https://github.com/libgdx/libgdx/wiki/Gdx-freetype
        FileHandle fontFileHandle = Gdx.files.internal(ttfFontPathAndName);
        Gdx.app.log(tag, "fontFileHandle is: " + fontFileHandle);
        FreeTypeFontGenerator fontGenerator = new FreeTypeFontGenerator(fontFileHandle);
        Gdx.app.log(tag, "fontGenerator is: " + fontGenerator);
        FreeTypeFontParameter fontParameters = new FreeTypeFontParameter();
        fontParameters.characters = ruCharacters + engCharacters + extraCharacters;
        fontParameters.size = fontSize;

        result = fontGenerator.generateFont(fontParameters);
        Gdx.app.log(tag, "generateFontFrom() given ttfFontPathAndName = " + ttfFontPathAndName + ", fontSize = " + fontSize
            + ", generated font: " + result);
        fontGenerator.dispose(); // don't forget to dispose to avoid memory leaks!

        return result;
    }

    /**
     * Like generateFont(), but allows to specify font color + adds some nice border
     * and shadow to font.
     */
    public static BitmapFont generateFontEx(String ttfFontPathAndName, int fontSize, Color gdxColor) {
        BitmapFont result = new BitmapFont();

        String ruCharacters = "АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ" + "абвгдеёжзийклмнопрстуфхцчшщъыьэюя";

        String engCharacters = "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz";

        String extraCharacters = "1234567890.,:;_!?\\\\";

        // https://github.com/libgdx/libgdx/wiki/Gdx-freetype
        FileHandle fontFileHandle = Gdx.files.internal(ttfFontPathAndName);
        Gdx.app.log(tag, "fontFileHandle is: " + fontFileHandle);
        FreeTypeFontGenerator fontGenerator = new FreeTypeFontGenerator(fontFileHandle);
        Gdx.app.log(tag, "fontGenerator is: " + fontGenerator);
        FreeTypeFontParameter fontParameters = new FreeTypeFontParameter();
        fontParameters.characters = ruCharacters + engCharacters + extraCharacters;
        fontParameters.size = fontSize;
        // nice enhancements
        fontParameters.color = gdxColor;
        // border
        fontParameters.borderColor = Color.BLACK;
        fontParameters.borderWidth = 3;
        //shadow
        fontParameters.shadowColor = Color.BLACK;
        fontParameters.shadowOffsetX = 3;
        fontParameters.shadowOffsetY = 3;

        result = fontGenerator.generateFont(fontParameters);
        Gdx.app.log(tag, "generateFontFrom() given ttfFontPathAndName = " + ttfFontPathAndName + ", fontSize = " + fontSize
            + ", generated font: " + result);
        fontGenerator.dispose(); // don't forget to dispose to avoid memory leaks!

        return result;
    }

}