Android Open Source - dice-probabilities Modify Each Die 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   ww  w  .  ja  v  a  2 s  .  c  o m
import org.kleemann.diceprobabilities.R;
import org.kleemann.diceprobabilities.distribution.ConstantDistribution;
import org.kleemann.diceprobabilities.distribution.Distribution;
import org.kleemann.diceprobabilities.distribution.SumDistribution;

import android.content.res.Resources;
import android.util.SparseIntArray;

public class ModifyEachDieSpecial extends AbstractSpecial {

  private int modifier;

  public ModifyEachDieSpecial(Resources r, int modifier) {
    super(
        String.format(
            r.getString(R.string.special_modify_each_die_title),
            modifier),
        String.format(
            r.getString(R.string.special_modify_each_die_description),
            modifier));
    this.modifier = modifier;
  }

  @Override
  public Distribution getDistribution(SparseIntArray sidesToCount) {
    // count the total number of dice
    int numDice = 0;
    for (int i = sidesToCount.size() - 1; i >= 0; --i) {
      final int sides = sidesToCount.keyAt(i);
      final int count = sidesToCount.valueAt(i);
      if (count != 0) {
        // constant does not count as a die for this special
        if (sides != 1) {
          numDice += count;
        }
      }
    }

    // adjust the whole distribution by this adjustment times the number of
    // dice
    final Distribution k = new ConstantDistribution(numDice * modifier);
    return SumDistribution.add(super.getDistribution(sidesToCount), k);
  }
}

Java Source Code List