class Array2d
  
  def initialize(y, x)
    @test = "test"   
    @length = y*x
    @height = y
    @width = x
  end
  
  print @test
  
  @arr = Array.new(@length)
  
  puts @length
  exit
  
  def calc(y,x)
    return y*@height+x
  end
  
  def yx(y, x)
    return @arr[calc(y,x)];
  end
  
  def set(y, x, value)
    @arr[calc(y,x)] = value
  end
  
  def print
   0.upto(@length) do |i|
     print @arr.at(i)
     print " "
     
     if i % x = 0 and x > 0 then
       print "\n"
     end
   end
 end
 
end

class Screen
end

a = Array2d.new(3,3)
a.print