Easily reference individual sprites from a spritesheet.

SpriteSheet.java

import com.badlogic.gdx.assets.AssetManager;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.TextureRegion;

/**
 * @author brokenbeach
 * @since 12/09/2016
 */
public class SpriteSheet {

    private Texture tex;
    private int nSpritesWide;
    private int nSpritesHigh;
    private int padding;
    private int spriteWidth;
    private int spriteHeight;

    public SpriteSheet(AssetManager assets, String ref, int nSpritesWide, int nSpritesHigh, int padding) {

        tex = assets.get(ref, Texture.class);
        this.nSpritesWide = nSpritesWide;
        this.nSpritesHigh = nSpritesHigh;
        this.padding = padding;
        spriteWidth  = ((tex.getWidth()  - padding) / nSpritesWide) - padding;
        spriteHeight = ((tex.getHeight() - padding) / nSpritesHigh) - padding;
    }

    public TextureRegion getTexture(int index) {

        int x = index % nSpritesWide;
        int y = index / nSpritesHigh;
        int spriteX = x * (spriteWidth  + padding) + padding;
        int spriteY = y * (spriteHeight + padding) + padding;
        return new TextureRegion(tex, spriteX, spriteY, spriteWidth, spriteHeight);
    }

}