common/chemicraft/util/MathHelperPlus.java

   1 package chemicraft.util;
   2
   3 import java.util.ArrayList;
   4 import java.util.Random;
   5
   6 public class MathHelperPlus
   7 {
   8
   9         /**
  10          * Return probability(0~).
  11          */
  12         public static int probability(double... par1)
  13         {
  14                 ArrayList<Double> var1 = new ArrayList<Double>();
  15                 for (int var2 = 0; var2 < par1.length; var2++){
  16                         var1.add(par1[var2]);
  17                 }
  18                 return probability(var1);
  19         }
  20
  21         public static int probability(ArrayList<Double> par1)
  22         {
  23                 Random var2 = new Random();
  24                 int var3 = var2.nextInt(100);
  25                 double var4 = 0.0D;
  26
  27                 for (int var5 = 0; var5 < par1.size(); var5++) {
  28                         var4 += par1.get(var5);
  29                 }
  30
  31                 ArrayList<Double> var6 = new ArrayList<Double>();
  32                 for (int var7 = 0; var7 < par1.size(); var7++) {
  33                         var6.add(par1.get(var7) / var4 * 100);
  34                 }
  35
  36                 double var8 = 0.0D;
  37                 for (int var9 = 0; var9 < var6.size(); var9++) {
  38                         if (var3 < var6.get(var9) + var8) {
  39                                 return var9;
  40                         } else {
  41                                 var8 += var6.get(var9);
  42                         }
  43                 }
  44                 return -1;
  45         }
  46
  47 }