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package bjc.dicelang.dicev2;
import bjc.utils.funcutils.ListUtils;
import java.util.ArrayList;
import java.util.List;
import java.util.function.LongPredicate;
/**
* An exploding die pool.
* @author Ben Culkin
*
*/
public class ExplodingDieMod extends Die {
/**
* The pool of dice.
*/
public final Die[] dice;
/**
* The predicate which says when to explode.
*/
public final LongPredicate explode;
/**
* Should the explosion penetrate.
*/
public final boolean penetrate;
/**
* Create an exploding die pool.
* @param explode The predicate for determining an explosion.
* @param dice The die pool.
*/
public ExplodingDieMod(LongPredicate explode, Die... dice) {
this(explode, false, dice);
}
/**
* Create an exploding die pool.
* @param explode The predicate for determining an explosion.
* @param penetrate Whether the explosion should penetrate.
* @param dice The die pool.
*/
public ExplodingDieMod(LongPredicate explode, boolean penetrate, Die... dice) {
super();
this.dice = dice;
this.explode = explode;
this.penetrate = penetrate;
}
@Override
public long[] roll() {
List<Long> lst = new ArrayList<>(dice.length);
for(Die die : dice) {
for(long val : die.roll()) {
lst.add(val);
long newVal = val;
while(explode.test(newVal)) {
newVal = die.rollSingle();
if(penetrate) newVal -= 1;
lst.add(newVal);
}
}
}
return ListUtils.toPrimitive(lst);
}
/*
* @NOTE
*
* :NoSingleRolls
*
* It makes no sense to roll a 'single' exploding dice, since it
* exploding adds another die. Use compounding dice for that case.
*/
@Override
public long rollSingle() {
throw new UnsupportedOperationException("Exploding dice can't be rolled singly");
}
/* :UnoptimizableDice */
@Override
public boolean canOptimize() {
return false;
}
@Override
public long optimize() {
throw new UnsupportedOperationException("Exploding dice can't be optimized");
}
}
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