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Contents
# encoding: utf-8
# SimpleTournament
class SimpleTournament
attr_reader :tournament, :number, :matches
# initialize tournament by number
def initialize(number)
@number = number
@matches = []
cnt = 0
@tournament = []
while number >= (2**cnt)
tournament << Array.new(2**cnt)
cnt += 1
end
diff = number - (2**(cnt - 1))
@tournament << Array.new(diff * 2) unless (diff == 0)
end
# apply challengers to tournament
def apply_challengers(challengers)
fail 'incorrect challengers size. challengers must equals tournament.size' unless challengers.size == @number
@tournament.reverse_each do |outer|
outer.each_with_index do |v, i|
poped = challengers.pop
return @tournament if poped.nil?
outer[i] = poped
end
end
end
# start tournament match. set result to tournament, matches
def start_match(proc)
@tournament.reverse_each.with_index do |outer, outer_index|
outer.reverse_each.with_index do |inner, inner_index|
next if inner_index.odd?
next if inner_index == outer.size - 1
rets = proc.call outer[-(inner_index + 1)], outer[-(inner_index + 2)], outer_index
winner = rets.first
@matches << rets.last
set_winner(winner, outer_index)
end
end
end
private
def set_winner(winner, outer_index)
@tournament[0..-(outer_index + 1)].reverse_each do |replace_outer|
replace_outer.reverse_each.with_index do |reverse_inner, reverse_inner_index|
next unless reverse_inner.nil?
return replace_outer[-(reverse_inner_index + 1)] = winner
end
end
end
end
Version data entries
35 entries across 35 versions & 1 rubygems