private static string GenerateSurname() { string name = string.Empty; string[] currentConsonant; string[] vowels = "a,a,a,a,a,e,e,e,e,e,e,e,e,e,e,e,i,i,i,o,o,o,u,y,ee,ee,ea,ea,ey,eau,eigh,oa,oo,ou,ough,ay".Split(','); string[] commonConsonants = "s,s,s,s,t,t,t,t,t,n,n,r,l,d,sm,sl,sh,sh,th,th,th".Split(','); string[] averageConsonants = "sh,sh,st,st,b,c,f,g,h,k,l,m,p,p,ph,wh".Split(','); string[] middleConsonants = "x,ss,ss,ch,ch,ck,ck,dd,kn,rt,gh,mm,nd,nd,nn,pp,ps,tt,ff,rr,rk,mp,ll".Split(','); //Can't start string[] rareConsonants = "j,j,j,v,v,w,w,w,z,qu,qu".Split(','); Random rng = new Random(Guid.NewGuid().GetHashCode()); int[] lengthArray = new int[] { 2, 2, 2, 2, 2, 2, 3, 3, 3, 4 }; //Favor shorter names but allow longer ones int length = lengthArray[rng.Next(lengthArray.Length)]; for (int i = 0; i < length; i++) { int letterType = rng.Next(1000); if (letterType < 775) currentConsonant = commonConsonants; else if (letterType < 875 && i > 0) currentConsonant = middleConsonants; else if (letterType < 985) currentConsonant = averageConsonants; else currentConsonant = rareConsonants; name += currentConsonant[rng.Next(currentConsonant.Length)]; name += vowels[rng.Next(vowels.Length)]; if (name.Length > 4 && rng.Next(1000) < 800) break; //Getting long, must roll to save if (name.Length > 6 && rng.Next(1000) < 950) break; //Really long, roll again to save if (name.Length > 7) break; //Probably ridiculous, stop building and add ending } int endingType = rng.Next(1000); if (name.Length > 6) endingType -= (name.Length * 25); //Don't add long endings if already long else endingType += (name.Length * 10); //Favor long endings if short if (endingType < 400) { } // Ends with vowel else if (endingType < 775) name += commonConsonants[rng.Next(commonConsonants.Length)]; else if (endingType < 825) name += averageConsonants[rng.Next(averageConsonants.Length)]; else if (endingType < 840) name += "ski"; else if (endingType < 860) name += "son"; else if (Regex.IsMatch(name, "(.+)(ay|e|ee|ea|oo)$") || name.Length < 5) { name = "Mc" + name.Substring(0, 1).ToUpper() + name.Substring(1); return name; } else name += "ez"; name = name.Substring(0, 1).ToUpper() + name.Substring(1); //Capitalize first letter return name; }