christmas.rb

require 'bigdecimal'

max = min = count = start = last = bank = nil
$<.each_line do |line|
  line.strip!
  case line
  when /^Starting with BANK of (.+) BTC$/
    start = last = bank = BigDecimal.new($1)
    count = 0
    max = BigDecimal.new(-1) / 0
    min = BigDecimal.new(1) / 0
  when /^BANK: (.+)$/
    count += 1
    bank = BigDecimal.new($1)
    profit = bank - start
    change = bank - last
    win = change >= 0
    up = profit >= 0
    print "\e[%dm%+d\e[m" % [change >= 0 ? 32 : 31, change]
    
    last = bank
  end
end

proxy.rb

require 'bigdecimal'

count = start_bank = last_bank = bank = nil
$<.each_line do |line|
  line.strip!
  case line
  when /^Starting with BANK of (.+) BTC$/
    start_bank = last_bank = bank = BigDecimal.new($1)
    count = 0
  when /^BANK: (.+)$/
    count += 1
    bank = BigDecimal.new($1)
    profit = bank - start_bank
    change = bank - last_bank
    win = change >= 0
    up = profit >= 0
    puts "%s | \e[%dm%+.8f\e[m | \e[%dm%+.8f\e[m | %.8f" %
      [(Time.now.strftime '%H:%M:%S'), change >= 0 ? 32 : 31, change, 
        profit >= 0 ? 32 : 31, profit, bank]
    # puts "\x03%d%+.8f\x03 | \x03%d%+.8f\x03 | %.8f" %
    #   [change >= 0 ? 3 : 4, change, profit >= 0 ? 3 : 4, profit, bank]
    last_bank = bank
  end
end

test.rb

require 'bigdecimal'

max = min = count = start = last = bank = nil
$<.each_line do |line|
  line.strip!
  case line
  when /^Starting with BANK of (.+) BTC$/
    start = last = bank = BigDecimal.new($1)
    count = 0
    max = BigDecimal.new(-1) / 0
    min = BigDecimal.new(1) / 0
  when /^BANK: (.+)$/
    count += 1
    bank = BigDecimal.new($1)
    profit = bank - start
    change = bank - last
    win = change >= 0
    up = profit >= 0
    print "\r%d | \e[%dm%+.8f\e[m | \e[%dm%+.8f\e[m | %.8f\e[K" %
      [count, change >= 0 ? 32 : 31, change, 
        profit >= 0 ? 32 : 31, profit, bank]
    
    if bank > max
      puts
      max = bank
    end

    if change < min
      puts
      min = change
    end

    last = bank
  end
end