[LarzI]

NOTE!: This is NOT tested by anyone, so it might won't work!

Credits to: Whoever made PlayerToPoint and Andre9977 for the style of posting a function

IsAtPoint(Float:radi, whatis[], id, Float, Float:y, Float:z)
Float:radi - Radius
whatis - Can be playerid, vehicleid or objectid
id - The ID of either playerid, vehicleid or objectid. Depends on what you entered in whatis
Float, Float:y, Float:z - The position we're checking player's/vehicle's/object's lenght from

pawn Код:

stock IsAtPoint(Float:radi, whatis, id, Float:x, Float:y, Float:z)
{
  new Float:oldposx, Float:oldposy, Float:oldposz;
  new Float:tempposx, Float:tempposy, Float:tempposz;
  if(whatis == playerid)
    GetPlayerPos(id, oldposx, oldposy, oldposz);
    else if(whatis == objectid
      GetObjectPos(id, oldposx, oldposy, oldposz);
    else if(whatis == vehicleid
      GetVehiclePos(id, oldposx, oldposy, oldposz);
    else
      return false;
  tempposx = (oldposx -x);
  tempposy = (oldposy -y);
  tempposz = (oldposz -z);
  if (((tempposx < radi) && (tempposx > -radi)) && ((tempposy < radi) && (tempposy > -radi)) && ((tempposz < radi) && (tempposz > -radi)))
  {
    return 1;
  }
  return 0;
}

Please if you test this, or just see it, tell me if this won't/doesn't work.
Then I'll just edit this post, without the code and all