/** Roll a subset of the contained dice. */
@Override
public void roll() {
int oldRollCounter = currentRollCounter;
currentRollCounter = increment(currentRollCounter);
java.util.Collection<Integer> diceToRoll =
DiceDataUtil.getFlippedBits(oldRollCounter, currentRollCounter);
// Roll any necessary dice, deciding whether to roll
// based on which bit positions in the binary counter
// have flipped.
for (int dieNum : diceToRoll) {
diceList.get(dieNum).roll();
}
}
/**
* @param rangeSize The total range of values that should be rollable.
* @param numberOfDice The number of dice across which the range should be divided.
* @param gen The random number generator to provide to all contained dice.
*/
BinaryRollCountingDiceAggregator(int rangeSize, int numberOfDice, java.util.Random gen) {
diceList = DiceDataUtil.getDice(rangeSize, numberOfDice, gen);
maxRollCounter = 1 << numberOfDice;
maxRollableValue = rangeSize;
}