/**
* Calculates how much of the given goods type this settlement wants and should retain.
*
* @param type The <code>GoodsType</code>.
* @return The amount of goods wanted.
*/
protected int getWantedGoodsAmount(GoodsType type) {
if (getUnitCount() <= 0) return 0;
final Specification spec = getSpecification();
final UnitType unitType = getFirstUnit().getType();
final Role militaryRole =
Role.getAvailableRoles(getOwner(), unitType, spec.getMilitaryRoles()).get(0);
if (type.isMilitaryGoods()) {
// Retain enough goods to fully arm.
int need = 0;
for (Unit u : ownedUnits) {
if (u.getRole() == militaryRole) continue;
List<AbstractGoods> required = u.getGoodsDifference(militaryRole, 1);
need += AbstractGoods.getCount(type, required);
}
return need;
}
int consumption = getConsumptionOf(type);
if (type == spec.getPrimaryFoodType()) {
// Food is perishable, do not try to retain that much
return Math.max(40, consumption * 3);
}
if (type.isTradeGoods() || type.isNewWorldLuxuryType() || type.isRefined()) {
// Aim for 10 years supply, resupply is doubtful
return Math.max(80, consumption * 20);
}
// Just keep some around
return 2 * getUnitCount();
}
/**
* Gets the amount of gold this <code>IndianSettlment</code> is willing to sell the given <code>
* Goods</code> for.
*
* <p>It is only meaningful to call this method from the server, since the settlement's {@link
* GoodsContainer} is hidden from the clients.
*
* @param type The type of <code>Goods</code> to price.
* @param amount The amount of <code>Goods</code> to price.
* @return The price.
*/
public int getPriceToSell(GoodsType type, int amount) {
if (amount > GoodsContainer.CARGO_SIZE) {
throw new IllegalArgumentException("Amount > " + GoodsContainer.CARGO_SIZE);
}
final int full = GOODS_BASE_PRICE + getType().getTradeBonus();
// Base price is purchase price plus delta.
// - military goods at double value
// - trade goods at +50%
int price = amount + Math.max(0, 11 * getPriceToBuy(type, amount) / 10);
if (type.isMilitaryGoods()) {
price = Math.max(price, amount * full * 2);
} else if (type.isTradeGoods()) {
price = Math.max(price, 150 * amount * full / 100);
}
return price;
}
/** {@inheritDoc} */
@Override
public int getImportAmount(GoodsType goodsType, int turns) {
if (goodsType.limitIgnored()) return Integer.MAX_VALUE;
int present = Math.max(0, getGoodsCount(goodsType) - turns * getTotalProductionOf(goodsType));
int capacity = getWarehouseCapacity();
return capacity - present;
}
/**
* Price some goods according to the amount present in the settlement.
*
* @param type The type of goods for sale.
* @param amount The amount of goods for sale.
* @return A price for the goods.
*/
private int getNormalGoodsPriceToBuy(GoodsType type, int amount) {
final int tradeGoodsAdd = 20; // Fake additional trade goods present
final int capacity = getGoodsCapacity();
int current = getGoodsCount(type);
// Increase effective stock if its raw material is produced here.
GoodsType rawType = type.getInputType();
if (rawType != null) {
int rawProduction = getMaximumProduction(rawType);
int add =
(rawProduction < 5)
? 10 * rawProduction
: (rawProduction < 10)
? 5 * rawProduction + 25
: (rawProduction < 20) ? 2 * rawProduction + 55 : 100;
// Decrease bonus in proportion to current stock, up to capacity.
add = add * Math.max(0, capacity - current) / capacity;
current += add;
} else if (type.isTradeGoods()) {
// Small artificial increase of the trade goods stored.
current += tradeGoodsAdd;
}
// Only interested in the amount of goods that keeps the
// total under the threshold.
int retain = Math.min(getWantedGoodsAmount(type), capacity);
int valued = (retain <= current) ? 0 : Math.min(amount, retain - current);
// Unit price then is maximum price plus the bonus for the
// settlement type, reduced by the proportion of goods present.
int unitPrice =
(GOODS_BASE_PRICE + getType().getTradeBonus()) * Math.max(0, capacity - current) / capacity;
// But farmed goods are always less interesting.
// and small settlements are not interested in building.
if (type.isFarmed() || type.isRawBuildingMaterial()) unitPrice /= 2;
// Only pay for the portion that is valued.
return (unitPrice < 0) ? 0 : valued * unitPrice;
}
/**
* Price some goods that have military value to the settlement.
*
* @param type The type of goods for sale.
* @param amount The amount of goods for sale.
* @return A price for the goods.
*/
private int getMilitaryGoodsPriceToBuy(GoodsType type, int amount) {
final int full = GOODS_BASE_PRICE + getType().getTradeBonus();
int required = getWantedGoodsAmount(type);
if (required == 0) return 0; // Do not pay military price
// If the settlement can use more than half of the goods on offer,
// then pay top dollar for the lot. Otherwise only pay the premium
// price for the part they need and refer the remaining amount to
// the normal goods pricing.
int valued = Math.max(0, required - getGoodsCount(type));
int price =
(valued > amount / 2)
? full * amount
: valued * full + getNormalGoodsPriceToBuy(type, amount - valued);
logger.finest(
"Military price(" + amount + " " + type + ")" + " valued=" + valued + " -> " + price);
return price;
}
/** {@inheritDoc} */
@Override
public int getExportAmount(GoodsType goodsType, int turns) {
int present = Math.max(0, getGoodsCount(goodsType) + turns * getTotalProductionOf(goodsType));
int wanted = getWantedGoodsAmount(goodsType);
return present - wanted;
}
