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package eu.equalparts.cardbase.containers;
import java.util.HashMap;
import java.util.Map;
import com.fasterxml.jackson.annotation.JsonProperty;
import eu.equalparts.cardbase.card.Card;
/**
* A class which contains card quantities with absolutely no other
* information about the cards themselves.
*
* @author Eduardo Pedroni
*
*/
public class ReferenceCardContainer {
/**
* Land field initialised to 0, accessed with getter and updated with setter.
*/
private int plains = 0, islands = 0, swamps = 0, forests = 0, mountains = 0;
/**
* A map with card hashes as entry keys (calculated used {@code Card.hashCode()})
* and card amounts as entry values.
*/
@JsonProperty private Map<Integer, Integer> cardReferences = new HashMap<>();
/**
* Returns the amount of the specified card. If the card is not present at all, return 0.
*
* @param cardToCount a card whose count is to be returned.
* @return the count of the returned card in the container.
*/
public int getCount(Card cardToCount){
int cardHash = cardToCount.hashCode();
return cardReferences.containsKey(cardHash) ? cardReferences.get(cardHash) : 0;
}
/**
* @param cardToAdd the card to add the container.
* @param count the amount to add.
*/
public void addCard(Card cardToAdd, int count) {
cardReferences.put(cardToAdd.hashCode(), getCount(cardToAdd) + count);
}
/**
* @param cardToRemove the card to remove from the container.
* @param count the amount to remove.
* @return the amount that was effectively removed. Could be less than {@code count}
* depending on how many of the card were present.
*/
public int removeCard(Card cardToRemove, int count) {
int cardHash = cardToRemove.hashCode();
if (count <= 0 || !cardReferences.containsKey(cardHash)) {
return 0;
}
if (count >= cardReferences.get(cardHash)) {
return cardReferences.remove(cardHash);
} else {
cardReferences.put(cardHash, cardReferences.get(cardHash) - count);
return count;
}
}
/**
* @return the plains
*/
public int getPlains() {
return plains;
}
/**
* @return the islands
*/
public int getIslands() {
return islands;
}
/**
* @return the swamps
*/
public int getSwamps() {
return swamps;
}
/**
* @return the forests
*/
public int getForests() {
return forests;
}
/**
* @return the mountains
*/
public int getMountains() {
return mountains;
}
/**
* @param plains the plains to set
*/
public void setPlains(int plains) {
this.plains = plains;
}
/**
* @param islands the islands to set
*/
public void setIslands(int islands) {
this.islands = islands;
}
/**
* @param swamps the swamps to set
*/
public void setSwamps(int swamps) {
this.swamps = swamps;
}
/**
* @param forests the forests to set
*/
public void setForests(int forests) {
this.forests = forests;
}
/**
* @param mountains the mountains to set
*/
public void setMountains(int mountains) {
this.mountains = mountains;
}
}
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