ItemComparator.java

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package com.runehive.game.world.items;
 
import com.runehive.game.world.items.containers.pricechecker.PriceType;
 
import java.util.Comparator;
 
public enum ItemComparator implements Comparator<Item> {
    HIGH_ALCH_COMPARATOR,
    LOW_ALCH_COMPARATOR,
    ITEM_WEIGHT_COMPARATOR,
    SHOP_VALUE_COMPARATOR,
    ITEM_ID_COMPARATOR,
    ITEM_AMOUNT_COMPARATOR;
 
    @Override
    public int compare(Item first, Item second) {
        double firstValue = 0;
        double secondValue = 0;
 
        if (first == null && second == null) {
            return 0;
        }
 
        if (first == null) {
            return 1;
        }
 
        if (second == null) {
            return -1;
        }
 
        switch (this) {
 
        case HIGH_ALCH_COMPARATOR:
            firstValue = first.getValue(PriceType.HIGH_ALCH_VALUE);
            secondValue = second.getValue(PriceType.HIGH_ALCH_VALUE);
            break;
 
        case ITEM_AMOUNT_COMPARATOR:
            firstValue = first.getAmount();
            secondValue = second.getAmount();
            break;
 
        case ITEM_ID_COMPARATOR:
            firstValue = first.getId();
            secondValue = second.getId();
            break;
 
        case ITEM_WEIGHT_COMPARATOR:
            firstValue = first.getWeight();
            secondValue = second.getWeight();
            break;
 
        case LOW_ALCH_COMPARATOR:
            firstValue = first.getLowAlch();
            secondValue = second.getLowAlch();
            break;
 
        case SHOP_VALUE_COMPARATOR:
            firstValue = first.getValue(PriceType.VALUE);
            secondValue = second.getValue(PriceType.VALUE);
            break;
 
        }
 
        return Integer.signum((int) (secondValue - firstValue));
    }
}