math.random exclusions?

[Blackvein]

Just wondering if theres a way to use math.random, and exclude certain values.

Example: (math.random 17,25 excluding 21 and 22)

Can anyone help?

[50p]

You'd need to make a new function for it. Something like:

-- Usage:  math.randomEx( 1, 10, 2,3,4,5,6 )
function math.randomEx( min, max, ... )
local bExcluded;
local iNum;
repeat
math.randomseed( getTickCount( ) );
       bExcluded = false;
       iNum = math.random( min, max );
for _, iVal in ipairs( arg ) do
if iNum == iVal then
               bExcluded = true;
break;
end
end
until not bExcluded;
return iNum;
end

NOT TESTED but should work.

[DiSaMe]

Or you can use tables:

possible_values = {17,18,19,20,23,24,25}
random_value = possible_values[math.random(#possible_values)]

[CrazyDude]

Or you can use tables:

possible_values = {17,18,19,20,23,24,25}
random_value = possible_values[math.random(#possible_values)]

I think he wan't "impossible" values, like 50p scripted.