logic for dial bg image

DialView.java

// dial bgImage
    switch (score.getMaxScore().intValue()) {
      case Score.MAX_SCORE_3:
        if (scoreValue < 2) {
          mDialImageView.setImageResource(R.drawable.scale_3_1);
        } else if (scoreValue < 3) {
          mDialImageView.setImageResource(R.drawable.scale_3_2);
        } else {
          mDialImageView.setImageResource(R.drawable.scale_3_3);
        }
        break;
      case Score.MAX_SCORE_4:
        if (scoreValue < 2) {
          mDialImageView.setImageResource(R.drawable.scale_4_1);
        } else if (scoreValue < 3) {
          mDialImageView.setImageResource(R.drawable.scale_4_2);
        } else if (scoreValue < 4) {
          mDialImageView.setImageResource(R.drawable.scale_4_3);
        } else {
          mDialImageView.setImageResource(R.drawable.scale_4_4);
        }
        break;
      case Score.MAX_SCORE_10:
        if (scoreValue < 2) {
          mDialImageView.setImageResource(R.drawable.scale_10_1);
        } else if (scoreValue < 3) {
          mDialImageView.setImageResource(R.drawable.scale_10_2);
        } else if (scoreValue < 4) {
          mDialImageView.setImageResource(R.drawable.scale_10_3);
        } else if (scoreValue < 5) {
          mDialImageView.setImageResource(R.drawable.scale_10_4);
        } else if (scoreValue < 6) {
          mDialImageView.setImageResource(R.drawable.scale_10_5);
        } else if (scoreValue < 7) {
          mDialImageView.setImageResource(R.drawable.scale_10_6);
        } else if (scoreValue < 8) {
          mDialImageView.setImageResource(R.drawable.scale_10_7);
        } else if (scoreValue < 9) {
          mDialImageView.setImageResource(R.drawable.scale_10_8);
        } else if (scoreValue < 10) {
          mDialImageView.setImageResource(R.drawable.scale_10_9);
        } else {
          mDialImageView.setImageResource(R.drawable.scale_10_10);
        }
        break;
      default:
        throw new AssertionError("unknown max score");
    }