=== MAP NAME ===
Owner: Player
Price: $30,000
For sale: No
House ID: 1 (this is for the map, I just want every house to have a number so we know after each ID, the house that we are talking about

forward InfoText(); //forward the function
forward PlayerToPoint(Float:radi, playerid, Float:x, Float:y, Float:z); //This will be used to check player's position
public OnGameModeInit()
{
    SetTimer("InfoText", 1000, 1); //sets it to a timer which will be called every seconds
    return 1;
}

public InfoText() //This will check player position and send a message if he's in the zone you defined.
{
    for (new i =0; i<MAX_PLAYERS; i++)
    {
        if(IsPlayerConnected(i))
        {
            if(PlayerToPoint(5.0, i, x, y, z)) //5.0 is the radi, i is playerid and x,y,z are coordinates of the circle center
            {
                SendClientMessage(i, color," === MAP NAME ==="); replace color with your color code
                //Add the rest of your text
            }
        }
     }
}

public PlayerToPoint(Float:radi, playerid, Float:x, Float:y, Float:z) //By ****** if I'm not wrong
{
  if(IsPlayerConnected(playerid))
    {
        new Float:oldposx, Float:oldposy, Float:oldposz;
        new Float:tempposx, Float:tempposy, Float:tempposz;
        GetPlayerPos(playerid, oldposx, oldposy, oldposz);
        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;
}