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Add table.shuffle (#8299)

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HybridDog 2020-02-01 16:09:45 +01:00 • committed by GitHub
parent 2b3490db1f
commit ea5e231959
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14
builtin/common/misc_helpers.lua
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@ -576,6 +576,20 @@ function table.key_value_swap(t)
end
function table.shuffle(t, from, to, random)
from = from or 1
to = to or #t
random = random or math.random
local n = to - from + 1
while n > 1 do
local r = from + n-1
local l = from + random(0, n-1)
t[l], t[r] = t[r], t[l]
n = n-1
end
end
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-- mainmenu only functions
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