Module:Random: Difference between revisions

Revision as of 10:02, 14 November 2013

Revision as of 10:21, 14 November 2013

Line 60:

function p._number(args)

-- Returns a random number. This algorithm is taken from [[Module:Math]].

first = tonumber(args[1]) -- if it doesn't exist it's NaN, if not a number it's nil

second = tonumber(args[2])

-- This needs to use if statements as math.random won't accept explicit nil values as arguments.

if first then -- if NaN or nil, will skip down to final return

if first then

if first <= second then -- could match if both nil, but already checked that first is a number in last line

if second and first <= second then -- Second number cannot be less than the first, or it causes an error.

return math.random(first, second)

else

return math.random(first)

end

else

return math.random(first)

return math.random()

end

return math.random()

end