Curses, Part 1: The Standard Screen

gistfile1.rb

#!/usr/local/bin/ruby
require "curses"

def print_at_center(str)
  lines, cols = Curses.lines, Curses.cols
  Curses.clear
  Curses.setpos((lines / 2 ) - 1, ((cols - str.length) / 2) - 1)
  Curses.addstr(str)
  Curses.refresh
end

begin
  Curses.noecho
  Curses.cbreak
  Curses.stdscr.keypad(true)
  Curses.init_screen

  print_at_center("Hit Any Key")

  Curses.getch

  print_at_center("Hello World!")
ensure
  Curses.close_screen
end