@Override
public int compareTo(Eye eye) {
double r_diff = this.getColor().getRed() - eye.getColor().getRed();
double g_diff = this.getColor().getGreen() - eye.getColor().getGreen();
double b_diff = this.getColor().getBlue() - eye.getColor().getBlue();
@Override
public int compareTo(Eye eye) {
double r_diff = this.getColor().getRed() - eye.getColor().getRed();
double g_diff = this.getColor().getGreen() - eye.getColor().getGreen();
double b_diff = this.getColor().getBlue() - eye.getColor().getBlue();