Randomiser of images
Collections (Arrays and Hashes) in Ruby example from a Well House Consultants training course
More on Collections (Arrays and Hashes) in Ruby [link]
Source code: randimages Module: R107
# copy images t001.jpg to t072.jpg to my1_01.jpg to my1_72.jpg
# with random renumbering
# We have 72 pictures (let's make an array)
pix = (1..72).to_a
# which we want to shuffle
shuffled = 
while pix.length > 0 do
position = rand() * pix.length
pix[position] = pix[-1]
# then copy them according to the shuffle
for posn in 0..shuffled.length-1
fns = "t%03d.jpg" % shuffled[posn]
fnd = "mashed/my1_%02d.jpg" % posn
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* Learning to program in Ruby
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