skip glicko calculation when the game result is obvious
parent
63ab3e23aa
commit
64ebba75c7
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@ -114,6 +114,13 @@ final class PerfsUpdater(
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)
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)
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private def updateRatings(white: Rating, black: Rating, game: Game): Unit = {
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private def updateRatings(white: Rating, black: Rating, game: Game): Unit = {
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// if the winner is rated more than 500 higher, leave both ratings untouched.
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// this helps prevent farming and keeping deviation low by playing 1500? players
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val isObviousResult = game.winnerColor.?? {
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case chess.White => white.getRating - black.getRating
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case chess.Black => black.getRating - white.getRating
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} > 500
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if (!isObviousResult) {
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val result = game.winnerColor match {
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val result = game.winnerColor match {
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case Some(chess.White) => Glicko.Result.Win
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case Some(chess.White) => Glicko.Result.Win
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case Some(chess.Black) => Glicko.Result.Loss
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case Some(chess.Black) => Glicko.Result.Loss
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@ -131,6 +138,7 @@ final class PerfsUpdater(
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case e: Exception => logger.error(s"update ratings #${game.id}", e)
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case e: Exception => logger.error(s"update ratings #${game.id}", e)
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}
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}
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}
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}
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}
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private def mkPerfs(ratings: Ratings, users: (User, User), game: Game): Perfs =
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private def mkPerfs(ratings: Ratings, users: (User, User), game: Game): Perfs =
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users match {
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users match {
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