GPS system by Tika Spic (dock)

#include <a_samp>
#include <zcmd>

#define MAX_GPS 36

#define DIALOG_GPS      7986

enum gInfo
{
    gName[128],
    Float:gX,
    Float:gY,
    Float:gZ
}
new GPSInfo[MAX_GPS][gInfo];

new GPS = 0;
new gpsstr[256];
new GPS_Activated[MAX_PLAYERS] = 0;

stock AddGPS(name[], Float:x, Float:y, Float:z)
{
    GPS++;
    format(GPSInfo[GPS][gName],256,"%s",name);
    GPSInfo[GPS][gX] = x;
    GPSInfo[GPS][gY] = y;
    GPSInfo[GPS][gZ] = z;
    return 1;
}


public OnFilterScriptInit()
{
    print(" [][]> GPS System by dock LOADED!");

    AddGPS("Burger Shot", 1174.7587,-905.0877,43.0052);
    AddGPS("Los Santos PD", 1523.4817,-1681.0198,13.2347);

    for(new i = 0; i < GPS+1; i++)
    {
        if(i != 0)
        {
            if(i == 1) format(gpsstr,256,"%s\n",GPSInfo[i][gName]);
            if(i != 1) format(gpsstr,256,"%s%s\n",gpsstr,GPSInfo[i][gName]);
        }
    }
    return 1;
}

CMD:gps(playerid,params[])
{
    if(!IsPlayerInAnyVehicle(playerid)) return SendClientMessage(playerid, 0xff0000aa, " [GPS] You are not in a vehicle!");
    ShowPlayerDialog(playerid, DIALOG_GPS, DIALOG_STYLE_LIST, " GPS:", gpsstr, "Choose", "Cancel");
    return 1;
}
CMD:gpsoff(playerid,params[])
{
    if(GPS_Activated[playerid] == 1)
    {
        DisablePlayerCheckpoint(playerid);
        SendClientMessage(playerid, 0xffff00aa, " [GPS] You turned your GPS off!");
        GPS_Activated[playerid] = 0;
    }
    return 1;
}

public OnFilterScriptExit()
{
    return 1;
}

public OnPlayerRequestClass(playerid, classid)
{
    return 1;
}

public OnPlayerConnect(playerid)
{
    return 1;
}

public OnPlayerDisconnect(playerid, reason)
{
    return 1;
}

public OnPlayerSpawn(playerid)
{
    return 1;
}

public OnPlayerDeath(playerid, killerid, reason)
{
    return 1;
}

public OnVehicleSpawn(vehicleid)
{
    return 1;
}

public OnVehicleDeath(vehicleid, killerid)
{
    return 1;
}

public OnPlayerText(playerid, text[])
{
    return 1;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
    return 0;
}

public OnPlayerEnterVehicle(playerid, vehicleid, ispassenger)
{
    return 1;
}

public OnPlayerExitVehicle(playerid, vehicleid)
{
    return 1;
}

public OnPlayerStateChange(playerid, newstate, oldstate)
{
    return 1;
}

public OnPlayerEnterCheckpoint(playerid)
{
    if(GPS_Activated[playerid] == 1)
    {
        SendClientMessage(playerid, 0xffff00aa, " [GPS] You have arrived at your destenation!");
        DisablePlayerCheckpoint(playerid);
        GPS_Activated[playerid] = 0;
    }
    return 1;
}

public OnPlayerLeaveCheckpoint(playerid)
{
    return 1;
}

public OnPlayerEnterRaceCheckpoint(playerid)
{
    return 1;
}

public OnPlayerLeaveRaceCheckpoint(playerid)
{
    return 1;
}

public OnRconCommand(cmd[])
{
    return 1;
}

public OnPlayerRequestSpawn(playerid)
{
    return 1;
}

public OnObjectMoved(objectid)
{
    return 1;
}

public OnPlayerObjectMoved(playerid, objectid)
{
    return 1;
}

public OnPlayerPickUpPickup(playerid, pickupid)
{
    return 1;
}

public OnVehicleMod(playerid, vehicleid, componentid)
{
    return 1;
}

public OnVehiclePaintjob(playerid, vehicleid, paintjobid)
{
    return 1;
}

public OnVehicleRespray(playerid, vehicleid, color1, color2)
{
    return 1;
}

public OnPlayerSelectedMenuRow(playerid, row)
{
    return 1;
}

public OnPlayerExitedMenu(playerid)
{
    return 1;
}

public OnPlayerInteriorChange(playerid, newinteriorid, oldinteriorid)
{
    return 1;
}

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    return 1;
}

public OnRconLoginAttempt(ip[], password[], success)
{
    return 1;
}

public OnPlayerUpdate(playerid)
{
    return 1;
}

public OnPlayerStreamIn(playerid, forplayerid)
{
    return 1;
}

public OnPlayerStreamOut(playerid, forplayerid)
{
    return 1;
}

public OnVehicleStreamIn(vehicleid, forplayerid)
{
    return 1;
}

public OnVehicleStreamOut(vehicleid, forplayerid)
{
    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    if(dialogid == DIALOG_GPS)
    {
        if(!response) return 1;
        if(listitem == GPS+1) return 1;
        SetPlayerCheckpoint(playerid, GPSInfo[listitem+1][gX], GPSInfo[listitem+1][gY], GPSInfo[listitem+1][gZ],5.0);
        GPS_Activated[playerid] = 1;
        return 1;
    }
    return 1;
}

public OnPlayerClickPlayer(playerid, clickedplayerid, source)
{
    return 1;
}

public OnEnterExitModShop(playerid,enterexit,interiorid)
{
    return 1;
}

public OnPlayerTakeDamage(playerid, issuerid, Float:amount, weaponid)
{
    return 1;
}

public OnPlayerGiveDamage(playerid, damagedid, Float:amount, weaponid)
{
    return 1;
}

public OnUnoccupiedVehicleUpdate(vehicleid, playerid, passenger_seat)
{
    return 1;
}

public OnVehicleDamageStatusUpdate(vehicleid, playerid)
{
    return 1;
}