LDR(LDraw) file generator of Random colored logo bricks

random_colored_lego_bricks.rb

#!/usr/bin/ruby
#
# LDR(LDraw) file generator of Random colored logo bricks
#
# Copyright (c) 2017 @cat_in_136
# 
# This software is provided 'as-is', without any express or implied
# warranty. In no event will the authors be held liable for any damages
# arising from the use of this software.
# 
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
# 
# 1. The origin of this software must not be misrepresented; you must not
#    claim that you wrote the original software. If you use this software
#    in a product, an acknowledgment in the product documentation would be
#    appreciated but is not required.
# 2. Altered source versions must be plainly marked as such, and must not be
#    misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.
#


# 1 brick width/depth = 20LDU
BRICK_WD = 20
# 1 brick height = 24LDU
BRICK_H = 24

# 15 colours : original 16 colours - 0 (black).
COLOURS = (1..15).to_a

RANGE_X = -590..590
RANGE_Z = -590..590

RANGE_X.step(BRICK_WD) do |x|
  RANGE_Z.step(BRICK_WD) do |z|
    colour = COLOURS[rand(0..(COLOURS.length - 1))]
    y = -BRICK_H

    # 3005.DAT -- 1x1 brick
    $stdout << "1 #{colour} #{x} #{y} #{z} 1 0 0 0 1 0 0 0 1 3005.DAT"
    $stdout << "\r\n"
  end
end