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CodeBrawl ChunkyPNG edition
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#! /usr/bin/env ruby | |
require 'rubygems' | |
require 'chunky_png' | |
image = ChunkyPNG::Image.from_file('input.png') | |
h = image.dimension.height | |
print "height #{h} \n" | |
w = image.dimension.width | |
print "width #{w} \n" | |
def pixel_bomb(x, y, image) | |
currentGreen = ChunkyPNG::Color.g(image[x,y]) | |
color = ChunkyPNG::Color(image[x,y]) | |
sz = case currentGreen | |
when 0..63 | |
rand(2) | |
when 63..127 | |
1 | |
when 127..191 | |
2 | |
when 191..255 | |
4 | |
end | |
(-sz..sz).to_a.each do |xn| | |
(-sz..sz).to_a.each do |yn| | |
p = x + xn | |
q = y + yn | |
image.set_pixel_if_within_bounds(p,q, color) | |
end | |
end | |
end | |
def back_to_xy(int, width, height) | |
x = int % width | |
y = (int / width) | |
[x, y] | |
end | |
hash = Hash.new{|h, k| h[k] = []} | |
(0..h-1).each do |y| | |
(0..w-1).each do |x| | |
this_one = (y * w) + x | |
currentGreen = ChunkyPNG::Color.g(image[x,y]) | |
hash[currentGreen] << this_one | |
end | |
end | |
shash = hash.sort | |
shash.each do |k, v| | |
v.each do |pixel| | |
x, y = back_to_xy(pixel, w, h) | |
pixel_bomb(x, y, image) | |
end | |
end | |
image.save('output_' + Time.now.to_i.to_s + '.png') |
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