Shuffles your table arbitrarily

table.shuffle.lua

function table.shuffle(input, debug)

	if not type(input) == "table" then print("table.shuffle ERROR: <input> must be array") return nil end
	if not type(debug) == "nil" or not type(debug) == "boolean" then print("table.shuffle ERROR: <debug> must be nil or boolean") return nil end
	if debug == nil then debug = false end -- if debug is true, it'll print the output

	math.randomseed(os.time())
	local output = {}

	while true do

		math.random() math.random() math.random()
		local chosen = input[math.random(1,#input)]
		local exists = false

		for i=1,#output do if output[i] == chosen then exists = true end end

		if not exists then table.insert(output, chosen) end

		if #output == #input then break end

	end

	if debug then
		for i=1,#output do
			print(output[i])
		end
	end

	return output

end