[TwinkiDaBoss]

Download streamer and here you go

pawn Код:

#include <a_samp>
#include <streamer>

#define MAX_ZONES 3

new zones[MAX_ZONES];
new Float:zones_points_0[] = {
    31.0, -568.0, 2991.0, 1692.0 
};
new Float:zones_points_1[] = {
    -2997.0, 1540.0, -1225.0, 3760.0 
};
new Float:zones_points_2[] = {
    859.0, 3036.0, 2995.0, 5588.0 
};
new zones_text[MAX_ZONES][64] = {
    "Los Santos",
    "San Fierro",
    "las Venturas"
};


public OnFilterScriptInit() 
{

    zones[0] = CreateDynamicRectangle(zones_points_0[0], zones_points_0[1], zones_points_0[2], zones_points_0[3]);
    zones[1] = CreateDynamicRectangle(zones_points_1[0], zones_points_1[1], zones_points_1[2], zones_points_1[3]);
    zones[2] = CreateDynamicRectangle(zones_points_2[0], zones_points_2[1], zones_points_2[2], zones_points_2[3]);

    return 1;
}

public OnFilterScriptExit() {
    return 1;
}

public OnPlayerEnterDynamicArea(playerid, areaid) {
    for (new zone=0; zone<MAX_ZONES; zone++) {
        if (areaid==zones[zone]) {
            new msg[90];
            format(msg, 90, "Welcome to %s", zones_text[zone]);
            SendClientMessage(playerid, 0xFFFFFFFF, msg);
        }
    }
    return 1;
}

public OnPlayerLeaveDynamicArea(playerid, areaid) {
    for (new zone=0; zone<MAX_ZONES; zone++) {
        if (areaid==zones[zone]) {
            new msg[90];
            format(msg, 90, "Goodbye from %s", zones_text[zone]);
            SendClientMessage(playerid, 0xFFFFFFFF, msg);
        }
    }
    return 1;
}

This will work for players that area only in Cities itself. If you want more contact me.

Credits to Grimrandomer for creating SAMP zone editor