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###dRoll: Beginner Dice Roller

Roll dice base on a input string.

1/. Input.

<number_of_dice> d <value> [/ <modifier>]

• <number_of_dice>, int indicate the number of dice.
• d, delimiter.
• <value>, int dice value.
• /, Optional delimiter for dice modifier.
• <modifier>, int only with / delimiter

Each valid input can be separated by an ;.
Exemple of input:

"2d8" Valid
"1d8;1d8" Valid
"1d8/-2" Valid

Any not valid input is ignored.

2/. Roll rules:

If the rolled value is equals to the die value. An other roll is add to the die result.
Exemple:

• "1d4" Roll n°1=4 n°2=3 TotalValue= 7
• "1d4/-2" Roll n°1=4 n°2=3 TotalValue= 5

3/. Code

class dRoll
{
 private string _input;
 private List<dSet> _dSets = new List<dSet>();
 public dRoll(string input) {
 _input = input;
 ValidateInput();
 Run();
 }
 private void Run() { 
 foreach(var d in _dSets){
 d.Roll();
 d.PrintC();
 }
 }
 private void ValidateInput() {
 string[] argD = _input.Split(';');
 foreach (string arg in argD)
 {
 if (string.IsNullOrWhiteSpace(arg))
 {
 continue;
 }
 string[] dSplit = arg.ToLower().Split('d');
 if (dSplit.Length != 2)
 {
 continue;
 }
 int numT;
 if (!(int.TryParse(dSplit[0], out numT) && numT > 0))
 {
 continue;
 }
 int valT; int mod = 0;
 if (dSplit[1].Contains('/'))
 {
 string[] ModT = dSplit[1].Split('/');
 if (ModT.Length != 2)
 {
 continue;
 }
 if (!(int.TryParse(ModT[0], out valT) && valT > 1))
 {
 continue;
 }
 if (!(int.TryParse(ModT[1], out mod) && mod > 0))
 {
 continue;
 }
 }
 else
 {
 if (!(int.TryParse(dSplit[1], out valT) && valT > 1))
 {
 continue;
 }
 }
 for (int i = 1; i <= numT; i++)
 {
 if (mod == 0)
 {
 _dSets.Add(new dSet(1, valT));
 }
 else
 {
 _dSets.Add(new dSet(1, valT, mod)); 
 }
 }
 }
 }
}
class dSet 
{
 private static readonly Random random = new Random();
 private int _Dnum;
 private int _Dval;
 private int _Mval;
 dResult dResult = new dResult();
 public bool isMod
 {
 get
 {
 return _Mval!=0;
 }
 }
 public dSet() { 
 _Dnum=0;
 _Dval=0;
 _Mval=0;
 }
 public dSet(int Dnum, int Dval) {
 _Dnum = Dnum;
 _Dval = Dval;
 _Mval = 0;
 }
 public dSet(int Dnum, int Dval, int Mval) {
 _Dnum = Dnum;
 _Dval = Dval;
 _Mval = Mval;
 }
 public void Roll(){
 for (int i = 1; i <= _Dnum; i++)
 {
 bool NAce = true;
 bool BAce = true;
 for (int nNbr = 1; NAce; nNbr++)
 {
 int nRnd = random.Next(1, _Dval+1);
 dResult.resultN.Add(new Tuple<int, int>(nNbr, nRnd));
 if (nRnd != _Dval) 
 NAce = false;
 }
 for (int bNbr = 1; BAce; bNbr++)
 {
 int bRnd = random.Next(1, 6);
 dResult.resultB.Add(new Tuple<int, int>(bNbr, bRnd));
 if (bRnd != 6) 
 BAce = false;
 }
 }
 }
 public void PrintC(){
 Console.WriteLine("D{0}:{1}", _Dval, _Mval);
 Console.WriteLine("\tNormal : {0}",dResult.Ntot + _Mval);
 foreach (var n in dResult.resultN){
 Console.WriteLine("\t\t{0}: {1}", n.Item1, n.Item2);
 }
 Console.WriteLine("\tBonus : {0}", dResult.Btot + _Mval);
 foreach (var b in dResult.resultB) {
 Console.WriteLine("\t\t{0}: {1}", b.Item1, b.Item2);
 } 
 }
}
class dResult
{
 public List<Tuple<int, int>> resultN = new List<Tuple<int, int>>();
 public List<Tuple<int, int>> resultB = new List<Tuple<int, int>>();
 public int Ntot {
 get {
 return resultN.Sum(x => x.Item2);
 }
 }
 public int Btot {
 get
 {
 return resultB.Sum(x => x.Item2);
 }
 }
}