// Calculates new ratings based on the prior ratings and team ranks use 1 for first place, repeat the number for a tie (e.g. 1, 2, 2).
func (calc *TwoPlayerCalc) CalcNewRatings(gi *skills.GameInfo, teams []skills.Team, ranks ...int) skills.PlayerRatings {
newSkills := make(map[interface{}]skills.Rating)
// Basic argument checking
validateTeamCount(teams, twoPlayerTeamRange)
validatePlayersPerTeam(teams, twoPlayerPlayerRange)
// Copy the slices so we don't confuse the client code
steams := append([]skills.Team{}, teams...)
sranks := append([]int{}, ranks...)
// Make sure things are in order
sort.Sort(skills.NewRankedTeams(steams, sranks))
// Since we verified that each team has one player, we know the player is the first one
winningTeam := steams[0]
winner := winningTeam.Players()[0]
winnerPrevRating := winningTeam.PlayerRating(winner)
losingTeam := steams[1]
loser := losingTeam.Players()[0]
loserPrevRating := losingTeam.PlayerRating(loser)
wasDraw := sranks[0] == sranks[1]
newSkills[winner] = twoPlayerCalcNewRating(gi, winnerPrevRating, loserPrevRating, cond(wasDraw, skills.Draw, skills.Win))
newSkills[loser] = twoPlayerCalcNewRating(gi, loserPrevRating, winnerPrevRating, cond(wasDraw, skills.Draw, skills.Lose))
return newSkills
}
// Calculates new ratings based on the prior ratings and team ranks use 1 for first place, repeat the number for a tie (e.g. 1, 2, 2).
func (calc *TwoTeamCalc) CalcNewRatings(gi *skills.GameInfo, teams []skills.Team, ranks ...int) skills.PlayerRatings {
newSkills := make(map[interface{}]skills.Rating)
// Basic argument checking
validateTeamCount(teams, twoTeamTeamRange)
validatePlayersPerTeam(teams, twoTeamPlayerRange)
// Copy slices so we don't confuse the client code
steams := append([]skills.Team{}, teams...)
sranks := append([]int{}, ranks...)
// Make sure things are in order
sort.Sort(skills.NewRankedTeams(steams, sranks))
winningTeam := steams[0]
losingTeam := steams[1]
wasDraw := sranks[0] == sranks[1]
twoTeamUpdateRatings(gi, newSkills, winningTeam, losingTeam, cond(wasDraw, skills.Draw, skills.Win))
twoTeamUpdateRatings(gi, newSkills, losingTeam, winningTeam, cond(wasDraw, skills.Draw, skills.Lose))
return newSkills
}