seki/p5.rb

Created December 9, 2021 11:14

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create 16bit PGM

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p5.rb

	name = ARGV.shift \|\| 'p5.pgm'
	buf = "P5 256 256 65535\n" + (0...(256 ** 2)).to_a.pack('n*')
	File.write(name, buf)

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