#! /usr/bin/env ruby
# -*- mode: ruby; coding: utf-8 -*-
# Last updated: <2019/04/22 19:59:53 +0900>
#
# Ruby/SDL birmap font (SFont) draw.
#
# usage: ruby sfont.rb
# ESC key : exit
#
# * Windows10 x64 + Ruby 1.9.3 p661 mingw32 + rubysdl 2.1.1.1
#   load png : FAIL , load bmp : PASS
#
# * Windows10 x64 + Ruby 1.8.7 p330 mswin32 + rubysdl 1.3.1
# * Ubuntu Linux 18.04 + ruby 2.5.1 p57 x86_64-linux-gnu + rubysdl 2.2.0
#   load png : PASS , load bmp : PASS

require "sdl"

fontimg = "font/verabd_sfont01_32col.bmp"
#fontimg = "font/verabd_sfont01.png"

SDL.init( SDL::INIT_VIDEO )
screen = SDL::Screen.open(640, 480, 16, SDL::SWSURFACE)

fontflag = SDL::BMFont::TRANSPARENT | SDL::BMFont::SFONT
font = SDL::BMFont.open(fontimg, fontflag)

while true
  while event = SDL::Event2.poll
    case event
    when SDL::Event2::Quit
      exit
    when SDL::Event2::KeyDown
      case event.sym
      when SDL::Key::ESCAPE
        exit
      end
    end
  end

  screen.fill_rect(0, 0, 640, 480, [128, 128, 128])
  font.textout(screen, fontimg, 0, 0)
  x, y = 8, 64
  font.textout(screen, "SFont (BitMapFont) Testing..", x, y)

  screen.updateRect(0,0,0,0)
  sleep 0.016
end