小编Aea*_*awe的帖子

我的印象是这段代码可以通过某种方式利用多态来更清晰,但我似乎无法找到一种正确的方法.我尝试使用访问者模式,但没有设法使用它.

具有开关的"Hero"类:

public class Hero {
    private Equipment equipment = new Equipment();
    // other fields

    public void equipArmor(Armor armor) {
        findCorrespondingArmorSlot(armor).equipItem(armor);
    }

    private ItemSlot findCorrespondingArmorSlot(Armor armor) {
        switch (armor.getArmorType()) {
        case SHIELD:
            return equipment.offHand;
        case BODY:
            return equipment.body;
        case HEAD:
            return equipment.head;
        case GLOVES:
            return equipment.hands;
        case BOOTS:
            return equipment.feet;
        case BELT:
            return equipment.waist;
        case AMULET:
            return equipment.neck;
        case RING:
            return equipment.finger;
        case TRINKET:
            return equipment.special;
        }
        throw new NullPointerException();
    }

    public Equipment getEquipment() {
        return equipment;
    }

    // other …