Something

on *:text:!setworld:?: {
 if (($nick isop #comeandchat) || ($nick ishop #comandchat)) {
  if (($2 >= 2) && ($2 <= 150)) {
   /msg $chan New world has been set , type !pcw for new world, set by $nick
   set %pcw $2
  }
 }
}

on *:text:!pcw:#comeandchat: {
 if (($nick isvoice $chan) || ($nick ishop $chan) || ($nick isop $chan)) {
 /notice $nick The pc world is %pcw
 }
}