Module: RubyRaider::Logo

Defined in:
lib/utilities/logo.rb

Overview

Displays the Ruby Raider logo as colored pixel art in the terminal. Renders a faceted gem icon alongside “RUBY RAIDER” in a pixel font, using Unicode half-block characters for compact, high-detail output.

Constant Summary collapse

PALETTE =

Color palette: 0 = empty, 1 = dark, 2 = medium, 3 = bright

{
  1 => '130;30;48',
  2 => '180;45;65',
  3 => '230;70;90'
}.freeze
GEM =

Gem diamond with faceted shading (6 pixel rows × 9 cols)

[
  [0, 0, 0, 3, 3, 3, 0, 0, 0],
  [0, 2, 3, 3, 3, 3, 3, 2, 0],
  [2, 3, 2, 3, 3, 3, 2, 3, 2],
  [2, 2, 1, 2, 2, 2, 1, 2, 2],
  [0, 1, 2, 1, 1, 1, 2, 1, 0],
  [0, 0, 0, 1, 1, 1, 0, 0, 0]
].freeze
GLYPHS =

5-row pixel font glyphs

{
  'R' => [[1, 1, 1, 0], [1, 0, 0, 1], [1, 1, 1, 0], [1, 0, 1, 0], [1, 0, 0, 1]],
  'U' => [[1, 0, 0, 1], [1, 0, 0, 1], [1, 0, 0, 1], [1, 0, 0, 1], [0, 1, 1, 0]],
  'B' => [[1, 1, 1, 0], [1, 0, 0, 1], [1, 1, 1, 0], [1, 0, 0, 1], [1, 1, 1, 0]],
  'Y' => [[1, 0, 0, 1], [1, 0, 0, 1], [0, 1, 1, 0], [0, 0, 1, 0], [0, 0, 1, 0]],
  ' ' => [[0, 0], [0, 0], [0, 0], [0, 0], [0, 0]],
  'A' => [[0, 1, 1, 0], [1, 0, 0, 1], [1, 1, 1, 1], [1, 0, 0, 1], [1, 0, 0, 1]],
  'I' => [[1, 1, 1], [0, 1, 0], [0, 1, 0], [0, 1, 0], [1, 1, 1]],
  'D' => [[1, 1, 1, 0], [1, 0, 0, 1], [1, 0, 0, 1], [1, 0, 0, 1], [1, 1, 1, 0]],
  'E' => [[1, 1, 1, 1], [1, 0, 0, 0], [1, 1, 1, 0], [1, 0, 0, 0], [1, 1, 1, 1]]
}.freeze
TEXT_COLOR = 
3

Class Method Summary collapse

Class Method Details

.display ⇒ Object 



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# File 'lib/utilities/logo.rb', line 40

def self.display
  text_rows = build_text('RUBY RAIDER')
  text_width = text_rows.first.length

  # Build 6-row text grid: blank top row centers text vertically with gem
  text_grid = [Array.new(text_width, 0)]
  text_rows.each { |row| text_grid << row.map { |px| px == 1 ? TEXT_COLOR : 0 } }

  # Compose: gem(9) + gap(2) + text
  grid = 6.times.map { |y| GEM[y] + [0, 0] + text_grid[y] }

  # Render 3 terminal rows (each encodes 2 pixel rows via half-blocks)
  3.times do |tr|
    line = +''
    top = grid[tr * 2]
    bot = grid[tr * 2 + 1]
    top.length.times { |x| line << halfblock(top[x], bot[x]) }
    puts "  #{line.rstrip}"
  end
  puts
end