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module Scheduling
class Elimination
include Rails.application.routes.url_helpers
def initialize(tournament_stage)
@tournament_stage = tournament_stage
end
def tournament_stage
@tournament_stage
end
def tournament
self.tournament_stage.tournament
end
def create_matches
num_teams = (self.tournament.players.count/self.tournament.min_players_per_team).floor
num_matches = num_teams - 1
for i in 1..num_matches
self.tournament_stage.matches.create(status: 0, submitted_peer_evaluations: 0)
end
match_num = num_matches-1
team_num = 0
self.tournament.players.shuffle
# for each grouping of min_players_per_team
self.tournament.players.each_slice(self.tournament.min_players_per_team) do |team_members|
# if the match is full, move to the next match, otherwise move to the next team
if (team_num == self.tournament.min_teams_per_match)
match_num -= 1
team_num = 0
else
team_num += 1
end
# create a new team in the current match
self.tournament_stage.matches[match_num].teams.push(Team.create(users: team_members))
end
end
def match_finished(match)
matches = match.tournament_stage.matches_ordered
cur_match_num = matches.invert[match]
unless cur_match_num == 1
match.winner.matches.push(matches[cur_match_num/2])
end
end
def graph(current_user)
matches = @tournament_stage.matches_ordered
numTeams = @tournament_stage.tournament.min_teams_per_match
logBase = numTeams
# depth of SVG tree
depth = Math.log(matches.count*(logBase-1),logBase).floor+1;
# height of SVG
matchHeight = 50*logBase;
height = [(matchHeight+50) * logBase**(depth-1) + 100, 500].max;
lastrx = 0
lastry = 0
lastrh = 0
lastrw = 0
str = <<-STRING
<svg version="1.1" baseProfile="full"
xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
width="100%" height="#{height}">
<defs>
<radialGradient id="gradMatch" cx="50%" cy="50%" r="80%" fx="80%" fy="80%">
<stop offset="0%" style="stop-color:#ffd281; stop-opacity:0" />
<stop offset="100%" style="stop-color:#ccc;stop-opacity:1" />
</radialGradient>
</defs>
STRING
(1..matches.count).each do |i|
matchDepth = Math.log(i*(logBase-1), logBase).floor+1
base = (logBase**(matchDepth-1)/(logBase-1)).ceil
rh = 100 / (logBase**(depth-1)+1) - 100/height;
rw = 100/(depth+1) - 5
rx = 50/(depth+1) + 100/(depth+1)*(depth-matchDepth)
ry = 100/(logBase**(matchDepth-1)+1) * (i-base+1) - rh/2
str += "\t<a id=\"svg-match-#{i}\" xlink:href=\"#{match_path(matches[i])}\"><g>\n"
str += "\t\t<rect height=\"#{rh}%\" width=\"#{rw}%\" x=\"#{rx}%\" y=\"#{ry}%\" fill=\"url(#gradMatch)\" rx=\"5px\" stroke-width=\"2\""
case matches[i].status
when 0
if matches[i].teams.count < @tournament_stage.tournament.min_teams_per_match
str += ' stroke="red"'
str += ' fill-opacity="0.6"'
else
str += ' stroke="green"'
end
when 1
str += ' stroke="orange"'
when 2
str += ' stroke="yellow"'
when 3
str += ' stroke="grey"'
end
str += "/>\n"
t = 1
while t <= numTeams
color = (matches[i].teams[t-1] and matches[i].teams[t-1].users.include?(current_user)) ? "#BCED91" : "white"
str += "\t\t<rect width=\"#{rw-5}%\" height=\"#{rh*Float(30)/(matchHeight)}%\" x=\"#{rx + 2.5}%\" y=\"#{ry + (Float(t-1)/numTeams)*rh + 2 }%\" fill=\"#{color}\" />\n"
if matches[i].teams[t-1]
str += "\t\t<text x=\"#{rx + rw/4}%\" y=\"#{ry + (Float(t-1)/numTeams + Float(30)/(matchHeight))*rh}%\" font-size=\"#{rh}\">Team #{matches[i].teams[t-1].id}</text>\n"
end
if (t < numTeams)
str += "\t\t<text x=\"#{rx + 1.3*rw/3}%\" y=\"#{ry + (Float(20+35*(t))/matchHeight)*rh}%\" font-size=\"#{rh}\"> VS </text>\n"
end
t = t + 1
end
if i > 1
parent = (i+logBase-2)/logBase
pDepth = Math.log(parent*(logBase-1), logBase).floor+1
pBase = (logBase**(pDepth-1)/(logBase-1)).ceil
lastrx = 50/(depth+1) + 100/(depth+1)*(depth-pDepth)
lastry = 100/(logBase**(pDepth-1)+1) * (parent-pBase+1) - rh/2
str += "\t\t<line x1=\"#{rx+rw}%\" y1=\"#{ry+rh/2}%\" x2=\"#{lastrx}%\" y2=\"#{lastry+rh/2}%\" stroke=\"white\" stroke-width=\"2\" >\n"
end
str += "</g></a>\n"
end
str += '</svg>'
return str
end
end
end
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