alright so I have an array of colors: @col = ["255,0,0", "0,255,0", "0,0,255", "0,255,255","255,20,147"]

and I want to actually use them to color my sprite: image.draw(@x - image.width / 2, @y - image.height / 2,ZOrder::Stars, 1, 1, @col[rand(@col.length)].to_i, :additive)

the problem is that ruby wants an int for my colors, and .to_i makes the images invisible, can anyone help?

You made these colors as strings? They should be written as Color.new or hex. Try this array: @col = [0xffff0000, 0xff00ff00, 0xff0000ff, 0xff00ffff,0xffff1493]

You can use an Array full of Gosu::Color.new(a,r,g,b) calls if you want to specify each components as a decimal number :)

And if the above suggestions aren't an option (if you're reading those strings from a file or network stream or something) then you could transform them like so:

@actual_colors = your_color_strings.map do |triplet|
    Gosu::Color.new 255, *triplet.split(',').map { |n| n.to_i }
end

Do this once, obviously. If you do the transformation every frame then it's going to be slow. I don't recommend doing it like this if you can take one of the other solutions because it unnecessarily complicates your code.

lol's should work, also thanks jlnr for revealing that it's ARGB hex, I was wondering about the first/last two digits