35 lines
646 B
Ruby
Executable File
35 lines
646 B
Ruby
Executable File
#!/usr/bin/env ruby
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lines = File.read("palette.ppm").split("\n")
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lines = lines.select { |l| l[0] != "#" }
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raise "Not an ASCII ppm" if lines.shift != "P3"
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raise "Incorrect dimensions" unless lines.shift == "1 256"
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raise "Incorrect maxval" unless lines.shift == "255"
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raise "Too many lines left" unless lines.size == 768
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puts <<EOF
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package data
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import "image/color"
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var (
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Transparent = color.RGBA{R: 0, G: 0, B: 0, A: 0}
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ColorPalette = color.Palette{
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Transparent,
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EOF
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lines.shift(3) # Ignore idx 0
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255.times do
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r, g, b = lines.shift(3).map(&:to_i)
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puts "\t\tcolor.RGBA{R: #{r}, G: #{g}, B: #{b}, A: 255},"
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end
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puts <<EOF
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}
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)
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EOF
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