Shitty Java class

package com.sholnk.box2dtry;

import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.physics.box2d.Body;
import com.badlogic.gdx.physics.box2d.BodyDef;
import com.badlogic.gdx.physics.box2d.BodyDef.BodyType;
import com.badlogic.gdx.physics.box2d.CircleShape;
import com.badlogic.gdx.physics.box2d.Fixture;
import com.badlogic.gdx.physics.box2d.FixtureDef;
import com.badlogic.gdx.physics.box2d.World;

public abstract class EntityBase {

    protected BodyDef bodyDef = new BodyDef();
    protected Body body;
    protected Texture texture;
    protected CircleShape circle = new CircleShape();
    protected FixtureDef fixtureDef = new FixtureDef();
    protected Fixture fixture;
    protected Vector2 vel = new Vector2();
    protected Vector2 pos = new Vector2();
    protected Vector2 dimensions = new Vector2();

    public EntityBase(World world, Texture texture) {
        this.texture = texture;
        bodyDef.type = BodyType.DynamicBody;
        bodyDef.position.set(0, 0);
        body = world.createBody(bodyDef);
        circle.setRadius(texture.getWidth() / 2f);
        dimensions.x = circle.getRadius() * 2;
        dimensions.y = circle.getRadius() * 2;
        fixtureDef.shape = circle;
        fixtureDef.density = 0.5f;
        fixtureDef.friction = 0.4f;
        fixtureDef.restitution = 0.6f; // Make it bounce a little bit
        fixture = body.createFixture(fixtureDef);
    }

    public void render(SpriteBatch batch) {
        batch.draw(texture, body.getPosition().x, body.getPosition().y);
    }

    public abstract void update();

    public Vector2 getPosition() {
        return body.getPosition();
    }

    public float getWidth() {
        return dimensions.x;
    }

    public float getHeight() {
        return dimensions.y;
    }

    public void setPosition(Vector2 pos) {
        body.setTransform(pos, 0);
        this.pos = pos;
    }

    public void setPosition(float x, float y) {
        pos.x = x; pos.y = y;
        body.setTransform(pos, 0);
    }

    public Body getBody() {
        return body;
    }

    public void dispose() {
        circle.dispose();
    }

}