Created
November 23, 2010 16:16
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C# Elo Rating Class used on Facemash as seen in the Social Network Movie :-)
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| public class EloRating | |
| { | |
| public double Point1 { get; set; } | |
| public double Point2 { get; set; } | |
| public double FinalResult1 { get; set; } | |
| public double FinalResult2 { get; set; } | |
| public EloRating(double CurrentRating1, double CurrentRating2, double Score1, double Score2) | |
| { | |
| /* | |
| double CurrentR1 = 1500.0; | |
| double CurrentR2 = 1500.0; | |
| double Score1 = 20.0; | |
| double Score2 = 10; | |
| */ | |
| double E = 0; | |
| if (Score1 != Score2) | |
| { | |
| if (Score1 > Score2) | |
| { | |
| E = 120 - Math.Round(1 / (1 + Math.Pow(10, ((CurrentRating2 - CurrentRating1) / 400))) * 120); | |
| FinalResult1 = CurrentRating1 + E; | |
| FinalResult2 = CurrentRating2 - E; | |
| } | |
| else | |
| { | |
| E = 120 - Math.Round(1 / (1 + Math.Pow(10, ((CurrentRating1 - CurrentRating2) / 400))) * 120); | |
| FinalResult1 = CurrentRating1 - E; | |
| FinalResult2 = CurrentRating2 + E; | |
| } | |
| } | |
| else | |
| { | |
| if (CurrentRating1 == CurrentRating2) | |
| { | |
| FinalResult1 = CurrentRating1; | |
| FinalResult2 = CurrentRating2; | |
| } | |
| else | |
| { | |
| if (CurrentRating1 > CurrentRating2) | |
| { | |
| E = (120 - Math.Round(1 / (1 + Math.Pow(10, ((CurrentRating1 - CurrentRating2) / 400))) * 120)) - (120 - Math.Round(1 / (1 + Math.Pow(10, ((CurrentRating2 - CurrentRating1) / 400))) * 120)); | |
| FinalResult1 = CurrentRating1 - E; | |
| FinalResult2 = CurrentRating2 + E; | |
| } | |
| else | |
| { | |
| E = (120 - Math.Round(1 / (1 + Math.Pow(10, ((CurrentRating2 - CurrentRating1) / 400))) * 120)) - (120 - Math.Round(1 / (1 + Math.Pow(10, ((CurrentRating1 - CurrentRating2) / 400))) * 120)); | |
| FinalResult1 = CurrentRating1 + E; | |
| FinalResult2 = CurrentRating2 - E; | |
| } | |
| } | |
| } | |
| Point1 = (((FinalResult1 - CurrentRating1) > 0) ? (FinalResult1 - CurrentRating1) : (FinalResult1 - CurrentRating1)); | |
| Point2 = (((FinalResult2 - CurrentRating2) > 0) ? (FinalResult2 - CurrentRating2) : (FinalResult2 - CurrentRating2)); | |
| } | |
| } |
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what the f** ?...
Point1 = (((FinalResult1 - CurrentRating1) > 0) ? (FinalResult1 - CurrentRating1) : (FinalResult1 - CurrentRating1));