diff options
Diffstat (limited to 'lib/scoring')
-rw-r--r-- | lib/scoring/README.md | 15 | ||||
-rw-r--r-- | lib/scoring/fibonacci_peer_with_blowout.rb | 33 | ||||
-rw-r--r-- | lib/scoring/marginal_peer.rb | 16 | ||||
-rw-r--r-- | lib/scoring/winner_takes_all.rb | 16 |
4 files changed, 80 insertions, 0 deletions
diff --git a/lib/scoring/README.md b/lib/scoring/README.md new file mode 100644 index 0000000..efdc3cc --- /dev/null +++ b/lib/scoring/README.md @@ -0,0 +1,15 @@ +Scoring interface +================= + +Files in this directory should be _modules_ implementing the following +interface: + + - `stats_needed(Match) => Array[]=String` + + Returns which statistics need to be collected for this scoring + algorithm. + + - `score(Match) => Hash[User]=Integer` + + User scores for this match, assuming statistics have been + collected. diff --git a/lib/scoring/fibonacci_peer_with_blowout.rb b/lib/scoring/fibonacci_peer_with_blowout.rb new file mode 100644 index 0000000..a13d76c --- /dev/null +++ b/lib/scoring/fibonacci_peer_with_blowout.rb @@ -0,0 +1,33 @@ +module Scoring + module FibonacciPeerWithBlowout + def self.stats_needed(match) + return ["votes", "win", "blowout"] + match.users.map{|u|"review_from_#{u.user_name}"} + end + + def self.score(match) + scores = {} + match.users.each do |user| + stats = user.statistics.where(match: match) + votes = 0 + match.users.each do |u| + votes += convert_place_to_votes stats.where(name: "review_from_#{u.user_name}").first.value + end + win = stats.where(name: "win" ).first.value + blowout = stats.where(name: "blowout").first.value + scores[user] = self.score_user(votes, win, blowout) + end + scores + end + + protected + + def self.score_user(votes, win, blowout) + fibonacci = Hash.new { |h,k| h[k] = k < 2 ? k : h[k-1] + h[k-2] } + fibonacci[votes+3] + (win ? blowout ? 12 : 10 : blowout ? 5 : 7) + end + + def self.convert_place_to_votes(place) + (place == 0 or place == 1) ? 1 : 0 + end + end +end diff --git a/lib/scoring/marginal_peer.rb b/lib/scoring/marginal_peer.rb new file mode 100644 index 0000000..f2c0272 --- /dev/null +++ b/lib/scoring/marginal_peer.rb @@ -0,0 +1,16 @@ +module Scoring + module MarginalPeer + def self.stats_needed(match) + return ["rating", "win"] + end + + def self.score(match) + scores = {} + match.users.each do |user| + stats = Statistic.where(user: user, match: match) + scores[user] = stats.where(name: "rating").first.value + end + scores + end + end +end diff --git a/lib/scoring/winner_takes_all.rb b/lib/scoring/winner_takes_all.rb new file mode 100644 index 0000000..6cffb28 --- /dev/null +++ b/lib/scoring/winner_takes_all.rb @@ -0,0 +1,16 @@ +module Scoring + module WinnerTakesAll + def self.stats_needed(match) + return ["win"] + end + + def self.score(match) + scores = {} + match.users.each do |user| + stats = Statistic.where(user: user, match: match) + scores[user] = stats.where(name: "win").first.value ? 1 : 0 + end + scores + end + end +end |