/**
* Chooses a type of goods for some of the natives in a settlement to manufacture. Simple rule:
* choose the refined goods that is the greatest shortage for which there is a surplus of the raw
* material.
*
* @return A <code>GoodsType</code> to manufacture, or null if none suitable.
*/
private GoodsType goodsToMake() {
GoodsType wantGoods = null;
int diff, wantAmount = -1;
for (GoodsType g : getSpecification().getGoodsTypeList()) {
GoodsType produced;
if (g.isRawMaterial()
&& (produced = g.getOutputType()) != null
&& !produced.isBreedable()
&& produced.isStorable()
&& getGoodsCount(g) > getWantedGoodsAmount(g)
&& (diff = getWantedGoodsAmount(produced) - getGoodsCount(produced)) > wantAmount) {
wantGoods = produced;
wantAmount = diff;
}
}
return wantGoods;
}
/**
* Updates the goods wanted by this settlement.
*
* <p>It is only meaningful to call this method from the server, since the settlement's {@link
* GoodsContainer} is hidden from the clients.
*/
public void updateWantedGoods() {
final Specification spec = getSpecification();
final java.util.Map<GoodsType, Integer> prices = new HashMap<>();
for (GoodsType gt : spec.getGoodsTypeList()) {
// The natives do not trade military or non-storable goods.
if (gt.isMilitaryGoods() || !gt.isStorable()) continue;
prices.put(gt, getNormalGoodsPriceToBuy(gt, GoodsContainer.CARGO_SIZE));
}
int wantedIndex = 0;
for (Entry<GoodsType, Integer> e : mapEntriesByValue(prices, descendingIntegerComparator)) {
GoodsType goodsType = e.getKey();
if (e.getValue() <= GoodsContainer.CARGO_SIZE * TRADE_MINIMUM_PRICE
|| wantedIndex >= wantedGoods.length) break;
wantedGoods[wantedIndex] = goodsType;
wantedIndex++;
}
for (; wantedIndex < wantedGoods.length; wantedIndex++) {
wantedGoods[wantedIndex] = null;
}
}