class GOLife

# File lib/golife.rb, line 12
def initialize(width=(WIDTH-2), height=(HEIGHT-2))
  @width = width
  @height = height
  p @width, @height
  @field = Array.new(@height) { Array.new(@width, 0) }
  @temp = Array.new(@height) {Array.new(@width, 0) }
  @counter = 0
end

# File lib/golife.rb, line 28
def cell_changed?(i, j)
  @field[i][j] != @temp[i][j]
end

# File lib/golife.rb, line 32
def changed?
  HEIGHT.times do |i|
    WIDTH.times do |j|
      return true if cell_changed?(i, j)
    end
  end
  false
end

# File lib/golife.rb, line 41
def finished?
  @counter > MAX_COUNTER
end

# File lib/golife.rb, line 21
def generate
  @height
  100.times do
    @temp[@height / 3 + rand(@height / 4)][@width / 3 + rand(@width / 4)] = SELF_FILLED
  end
end

# File lib/golife.rb, line 72
def paint
  print '#' * (@width + 2), "\n"
  @height.times do |i|
    print '#'
    @width.times do |j|
      @field[i][j] = @temp[i][j]
      if @field[i][j] / 10 != 0
        print '*'
      else
        print ' '
      end
    end
    print "#\n"
  end
  print '#' * (@width + 2)
end

# File lib/golife.rb, line 56
def recalc
  @counter += 1
  (@height).times do |i|
    (@width).times do |j|
      @temp[i][j] = update_cell(i, j)
      if @temp[i][j] == 3 || @temp[i][j] == 2
        if @field[i][j] / 10 != 0
          @temp[i][j] += 10
        elsif @temp[i][j] == 3
          @temp[i][j] += 10
        end
      end
    end
  end
end

# File lib/golife.rb, line 89
def run
  #Curses.init_screen
  generate
  until finished?
    puts "\e[H\e[2J\n"
    #Curses.refresh
    paint
    recalc
    sleep(SLEEP_TIME)
  end
  #Curses.close_screen
end

# File lib/golife.rb, line 45
def update_cell(i, j)
  ans = 0
  (-1..1).each do |dx|
    (-1..1).each do |dy|
      ans += \
        @field[(i + dx + @height) % @height][(j + dy + @width) % @width] / 10
    end
  end
  ans
end