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require 'thread'
class KukiBox
	def initialize(num)
		@kukis = num
		@eatcount = {}
		@m = Mutex.new
	end

	def take_kuki(player_id)
		@m.synchronize do
			return true if @kukis == 0
			@kukis -=1
			@eatcount[player_id] ? @eatcount[player_id] +=1 : @eatcount[player_id] =0
		end
		return false
	end

	def display_counts
		p @eatcount
	end
end


class Player
	attr_accessor :t, :player_id
	def initialize(id, thread)
		@player_id = id
		@t= thread
	end
end

Thread.abort_on_exception = true

box = KukiBox.new(10000)
players = []
10.times { |i| players << Player.new(i , Thread.new { loop { sleep 0.001; break if box.take_kuki(i) } }) }
players.each { |p| p.t.join}
box.display_counts