Class: Termfront::TitleScreen

Inherits:
Object
  • Object
show all
Defined in:
lib/termfront/title_screen.rb

Constant Summary collapse

DEMO_WAYPOINTS = 
[
  [2.5, 5.0], [7.0, 2.5], [11.0, 3.5], [13.0, 5.0],
  [13.0, 8.0], [10.0, 8.5], [5.0, 8.5], [2.5, 5.0]
].freeze
TITLE_TEXT = 
"T E R M F R O N T"
SUB_TEXT = 
"Terminal FPS"
["[P] PvP", "[F] Wavesfight", "[C] Campaign", "[S] Training", "[Q] Quit"].freeze

Instance Method Summary collapse

Constructor Details

#initialize(stdout) ⇒ TitleScreen

Returns a new instance of TitleScreen.



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# File 'lib/termfront/title_screen.rb', line 14

def initialize(stdout)
  @stdout = stdout
  @title_spin = 0.0
  @demo_wp_idx = 0
  @demo_wp_t = 0.0
  @demo_fire = 0

  mission_class = Mission::Base.campaign.first
  if mission_class
    m = mission_class.new
    @demo_map = m.map_data.map { |row| row.is_a?(Array) ? row : row.chars }.freeze
    @demo_map_h = @demo_map.size
    @demo_map_w = @demo_map[0].size
    @demo_enemies = m.enemy_defs.freeze
  end

  @static_lines_cols = 0
  @static_title_line = nil
  @static_sub_line = nil
  @static_menu_lines = nil
end

Instance Method Details

#show ⇒ Object 



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# File 'lib/termfront/title_screen.rb', line 36

def show
  @title_spin = 0.0
  @demo_wp_idx = 0
  @demo_wp_t = 0.0
  @demo_fire = 0

  TerminalOutput.write_all(@stdout, TerminalOutput.begin_frame(home: true, clear: true) + TerminalOutput.end_frame)

  STDIN.raw do |stdin|
    last_render = clock - Config::RENDER_DT
    loop do
      now = clock
      @title_spin += 0.015

      if now - last_render >= Config::RENDER_DT
        render
        last_render = now
      end

      while IO.select([stdin], nil, nil, 0)
        begin
          ch = stdin.read_nonblock(64)
          ch.each_byte do |b|
            case b
            when 102, 70  then return :wavesfight
            when 115, 83  then return :singleplayer
            when 99, 67   then return :campaign
            when 112, 80  then return :pvp
            when 113, 81, 27 then return :quit
            end
          end
        rescue IO::WaitReadable
          break
        end
      end

      spent = clock - now
      remain = Config::FRAME_DT - spent
      sleep(remain) if remain > 0
    end
  end
end