import java.awt.Color;
-import java.util.List;
public class Eye implements Comparable<Eye> {
private Color color;
- private List<Color> colorList;
+ private String[] colorsList = {"black", "green", "blue", "brown"};
+ Eye() {
+ }
+
+ /**
+ * @param color
+ */
Eye(String color) {
setColor(color);
}
+ public String[] getColorsList() {
+ return colorsList;
+ }
+
+ /**
+ * @return
+ */
public Color getColor() {
return color;
}
+ /**
+ * @param color
+ */
public void setColor(String color) {
- this.color = Color.getColor(color);
+ if (validateColor(color)) {
+ if (color.equals("brown"))
+ this.color = new Color(88, 41, 0);
+ else
+ this.color = Color.getColor(color);
+
+ } else {
+ throw new IllegalArgumentException("Color must be " + colorsList);
+ }
+ }
+
+ /**
+ * @param color
+ * @return
+ */
+ private boolean validateColor(String color) {
+ for (String c : colorsList) {
+ if (color.equals(c)) {
+ return true;
+ }
+ }
+ return false;
}
+ /**
+ * @param eye
+ * @return
+ */
@Override
public int compareTo(Eye eye) {
- return 0;
+ 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();
+ //See https://en.wikipedia.org/wiki/Color_difference
+ Double distance = Math.sqrt(2 * Math.pow(r_diff, 2) + 4 * Math.pow(g_diff, 2) + 3 * Math.pow(b_diff, 2));
+ return distance.intValue();
}
}