static class Avatar {

// If the texture is to be a permanent part
// of the avatar, instead of supplying the texture
// to the draw function, a PImage field could be
// added at the top of the Avatar class and set
// in the constructor.
Avatar draw(PGraphics2D rndr, PImage texture) {
    rndr.pushStyle();
    rndr.noStroke();

    rndr.pushMatrix();
    rndr.translate(x, y);
    rndr.rotate(rot);
    rndr.scale(size);

    rndr.beginShape(QUADS);
    rndr.texture(texture);
    rndr.vertex(-0.5, 0.5, 0.0, 0.0);
    rndr.vertex(0.5, 0.5, 1.0, 0.0);
    rndr.vertex(0.5, -0.5, 1.0, 1.0);
    rndr.vertex(-0.5, -0.5, 0.0, 1.0);
    rndr.endShape(CLOSE);

    rndr.popMatrix();
    rndr.popStyle();
    return this;
  }
}