Android Open Source - dice-probabilities Crit Special

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License

The source code is released under:

MIT License

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Java Source Code

package org.kleemann.diceprobabilities.special;
/*from   w  w w  . j  a  v a 2 s  . c  o m*/
import java.util.ArrayList;

import org.kleemann.diceprobabilities.R;
import org.kleemann.diceprobabilities.distribution.CritDistribution;
import org.kleemann.diceprobabilities.distribution.Distribution;
import org.kleemann.diceprobabilities.distribution.SumDistribution;

import android.content.res.Resources;

/**
 * <p>
 * Turns a particular die type into a critical die. e.g. the highest value
 * receives some extra bonus. See CritDistribution.
 */
class CritSpecial extends AbstractSpecial {

  private final int critSides;
  private final int bonus;

  public CritSpecial(Resources r, int sides, int bonus, String weapon) {
    super(String.format(r.getString(R.string.special_crit_title), sides,
        bonus), String.format(
        r.getString(R.string.special_crit_description), bonus, weapon));
    this.critSides = sides;
    this.bonus = bonus;
  }

  @Override
  protected Distribution accumulateDiceStack(int sides, int count,
      Distribution accumulator) {
    if (sides == critSides) {
      final Distribution allDiceOfOneType = SumDistribution.multiply(
          new CritDistribution(sides, bonus), count);
      return SumDistribution.add(accumulator, allDiceOfOneType);
    } else {
      return super.accumulateDiceStack(sides, count, accumulator);
    }
  }

  /**
   * <p>
   * Use capital D for crits
   */
  @Override
  protected void addFormulaDie(int sides, int count, ArrayList<String> dice) {
    if (sides == critSides) {
      dice.add(count + "D" + sides);
    } else {
      super.addFormulaDie(sides, count, dice);
    }
  }

}

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