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BUILDIN(rand)
{
    int range;
    int min;
    int max;
    
    if( script_hasdata(st,3) )
    {// min,max
        min = script_getnum(st,2);
        max = script_getnum(st,3);
        if( max < min )
            swap(min, max);
        range = max - min + 1;
    }
    else
    {// range
        min = 0;
        range = script_getnum(st,2);
    }
    if( range <= 1 )
        script_pushint(st, min);
    else
        script_pushint(st, rnd()%range + min);
    
    return true;
}
 
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