RoundNumber

forward RoundNumber(num2round);
public RoundNumber(num2round)
{
    new number[64];
    format(number,sizeof(number),"%d",num2round);
    new numblen=strlen(number),_number=strval(number),orgnumb[64],negative=0;
    format(orgnumb,sizeof(orgnumb),"%d",_number);
    if(_number<0) { negative=1; }
    strdel(number,0,(numblen-1));
    _number=strval(number);
    if((negative==1) && (_number>0)) { _number-=(_number*2); }
    if(strval(orgnumb)>0)
    {
        if(_number<5) { return (strval(orgnumb)-_number); }
        else { return strval(orgnumb)+(10-_number); }
    } else {
        if(_number>-5) { return strval(orgnumb)-_number; }
        else { return strval(orgnumb)-(10+_number); }
    }
}