Dynamic MySQL GPS System

/**********************************
 *                                *
  *   Scripter:    CaptainBoi    *
  *   Version:     1.0           *
  *   Released:    07-11-2018    *
 *                                *
 **********************************/

/* Includes */
#include <a_samp>
#include <a_mysql>
#include <streamer>
#include <sscanf2>
#include <zcmd>

/* MySQL Entities */
#define     MYSQL_HOST      "127.0.0.1"
#define     MYSQL_USER      "root"
#define     MYSQL_PASS      ""
#define     MYSQL_DB        "deathmatch"

/* Dialogs */
#define     DIALOG_CONTROL_GPS  100
#define     DIALOG_ADD_GLOC     101
#define     DIALOG_DEL_GLOC     102
#define     DIALOG_TP_GLOC      103
#define     DIALOG_GPS_LOC      104

/* Database */
new MySQL: GPSDB;

/* Enumerator */
enum GPSData
{
    LocName[100],
    Float: Pos[3],
    Interior
}

/* Variables */
new gInfo[MAX_PLAYERS][GPSData];
new GPSMarker[MAX_PLAYERS];

public OnFilterScriptInit()
{
    new MySQLOpt: option_id = mysql_init_options();
    mysql_global_options(DUPLICATE_CONNECTIONS, true);
    mysql_set_option(option_id, AUTO_RECONNECT, true);
    GPSDB = mysql_connect(MYSQL_HOST, MYSQL_USER, MYSQL_PASS, MYSQL_DB, option_id);
    if(GPSDB == MYSQL_INVALID_HANDLE || mysql_errno(GPSDB) != 0)
    {
        print("Cannot connect to mysql database");

        SendRconCommand("exit");
        return 1;
    }
    else print("Connected to mysql database.");

    mysql_query(GPSDB, "CREATE TABLE IF NOT EXISTS `gpsdb` (\
    `S.No` INTEGER PRIMARY KEY AUTO_INCREMENT,\
    `LocationName` VARCHAR(100) NOT NULL,\
    `PositionX` FLOAT DEFAULT 0,\
    `PositionY` FLOAT DEFAULT 0,\
    `PositionZ` FLOAT DEFAULT 0,\
    `InteriorID` INT)", false);
    return 1;
}

public OnFilterScriptExit()
{
    mysql_close(GPSDB);
    return 1;
}

public OnPlayerConnect(playerid)
{
    GPSMarker[playerid] = 0;
    return 1;
}

public OnPlayerDisconnect(playerid, reason)
{
    GPSMarker[playerid] = 0;
    return 1;
}

/* Commands */
CMD:agps(playerid, params[])
{
    ShowPlayerDialog(playerid, DIALOG_CONTROL_GPS, DIALOG_STYLE_TABLIST_HEADERS, "Please select an option.", "\
    S.No\t-\tOption\t-\tInformation\n\
    1.\t-\tAdd GPS Location\t-\tYou can add gps location in /gps command.\n\
    2.\t-\tDelete GPS Location\t-\tYou can remove/delete the gps locations.\n\
    3.\t-\tGoto GPS Location\t-\tYou can teleport to the gps location.\n\
    4.\t-\tShow GPS\t-\tYou can see all the locations created in gps.", "Select", "Cancel");
    return 1;
}

CMD:gps(playerid,params[])
{
    new string[200], string2[200];
    new Cache:result = mysql_query(GPSDB,"SELECT `LocationName` FROM `gpsdb` WHERE `S.No` > -1 LIMIT 10");
    if(!cache_num_rows())
    {
        cache_delete(result);
        SendClientMessage(playerid, 0xFF0000FF,"Error: There is no gps locations added yet.");
        return 1;
    }

    for(new i; i< cache_num_rows(); i++)
    {
        cache_get_value_name(i,"LocationName", gInfo[playerid][LocName]);
        cache_get_value_name_float(i, "PositionX", gInfo[playerid][Pos][0]);
        cache_get_value_name_float(i, "PositionY", gInfo[playerid][Pos][1]);
        cache_get_value_name_float(i, "PositionZ", gInfo[playerid][Pos][2]);
        format(string, sizeof(string), "S.No\tLocation Name\n");
        format(string2, sizeof(string2), "%s\n%d\t%s\n", string, i, gInfo[playerid][LocName]);
    }

    SendClientMessage(playerid, 0xFFFF00FF, "Please select a location.");
    ShowPlayerDialog(playerid, DIALOG_GPS_LOC, DIALOG_STYLE_TABLIST_HEADERS, "Please select an option.", string2, "Select", "Cancel");
    return 1;
}

CMD:gpsoff(playerid, params[])
{
    if (GPSMarker[playerid] == 0) return SendClientMessage(playerid, 0xFF0000FF, "Error: Your GPS is already turned off!");
    DestroyDynamicMapIcon(GPSMarker[playerid]);
    GPSMarker[playerid] = 0;
    SendClientMessage(playerid, 0xFFFF00FF, "You have turned off your GPS.");
    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    new Query[216], Query2[216], string[216];
    if(dialogid == DIALOG_CONTROL_GPS)
    {
        if(response)
        {
            if(listitem == 0)
            {
                SendClientMessage(playerid, 0xFFFF00FF, "Please enter the location name to add it in /gps.");
                ShowPlayerDialog(playerid, DIALOG_ADD_GLOC, DIALOG_STYLE_INPUT, "Add GPS Location", "Please enter the location name to add it in /gps.", "Add", "Cancel");
            }
            if(listitem == 1)
            {
                SendClientMessage(playerid, 0xFFFF00FF, "Please enter the location name to remove/delete the location in /gps.");
                ShowPlayerDialog(playerid, DIALOG_DEL_GLOC, DIALOG_STYLE_INPUT, "Delete GPS Location", "Please enter the location name to remove/delete the location in /gps.", "Delete", "Cancel");
            }
            if(listitem == 2)
            {
                SendClientMessage(playerid, 0xFFFF00FF, "Please enter the location name to teleport through /gps location.");
                ShowPlayerDialog(playerid, DIALOG_TP_GLOC, DIALOG_STYLE_INPUT, "Teleport GPS Location", "Please enter the location name to teleport through /gps location.", "Teleport", "Cancel");
            }
            if(listitem == 3)
            {
                return cmd_gps(playerid, "");
            }
        }
        return 1;
    }
    if(dialogid == DIALOG_ADD_GLOC)
    {
        if(response)
        {
            gInfo[playerid][Interior] = GetPlayerInterior(playerid);
            GetPlayerPos(playerid, gInfo[playerid][Pos][0], gInfo[playerid][Pos][1], gInfo[playerid][Pos][2]);
            mysql_format(GPSDB, Query, sizeof(Query), "SELECT * FROM `gpsdb` WHERE `LocationName` = '%s'", inputtext);
            new Cache:result = mysql_query(GPSDB, Query, true);

            if(cache_num_rows()) return SendClientMessage(playerid, 0xFF0000FF, "Error: That location name is already added.");
            mysql_format(GPSDB, Query2, sizeof(Query2), "INSERT INTO `gpsdb` (`LocationName`, `PositionX` , `PositionY` , `PositionZ`, `InteriorID`) VALUES ('%e', '%f', '%f', '%f', '%d')", inputtext, gInfo[playerid][Pos][0], gInfo[playerid][Pos][1], gInfo[playerid][Pos][2], gInfo[playerid][Interior]);
            mysql_query(GPSDB, Query2, false);

            format(string, sizeof(string), "You have added location: %s in /gps.", inputtext);
            SendClientMessage(playerid, 0xFFFF00FF, string);
            cache_delete(result);
        }
        return 1;
    }
    if(dialogid == DIALOG_DEL_GLOC)
    {
        if(response)
        {
            mysql_format(GPSDB, Query, sizeof(Query),"DELETE FROM `gpsdb` WHERE `LocationName` = '%s'", inputtext);
            mysql_query(GPSDB, Query, false);

            format(string, sizeof(string), "You have removed gps location: {F3FF02}%s", inputtext);
            SendClientMessage(playerid, 0xFFFF00FF, string);
        }
        return 1;
    }
    if(dialogid == DIALOG_TP_GLOC)
    {
        if(response)
        {
            mysql_format(GPSDB, Query, sizeof(Query), "SELECT * FROM `gpsdb` WHERE `LocationName` = '%s'", inputtext);
            new Cache:result = mysql_query(GPSDB, Query, true);
            if(cache_num_rows())
            {
                cache_get_value_name(0, "LocationName", gInfo[playerid][LocName]);
                cache_get_value_name_float(0, "PositionX", gInfo[playerid][Pos][0]);
                cache_get_value_name_float(0, "PositionY", gInfo[playerid][Pos][1]);
                cache_get_value_name_float(0, "PositionZ", gInfo[playerid][Pos][2]);
                cache_get_value_name_int(0, "InteriorID", gInfo[playerid][Interior]);
                SetPlayerPos(playerid, gInfo[playerid][Pos][0], gInfo[playerid][Pos][1], gInfo[playerid][Pos][2]);
                format(string, sizeof(string), "You have been teleported to gps location: {F3FF02}'%s'", gInfo[playerid][LocName]);
                SendClientMessage(playerid, 0xFFFF00FF, string);
            }
            else SendClientMessage(playerid, 0xFF0000FF,"Error: The location you entered does not exist.");
            cache_delete(result);
        }
        return 1;
    }
    if(dialogid == DIALOG_GPS_LOC)
    {
        if(response)
        {
            if (GPSMarker[playerid] != 0)
            {
                DestroyDynamicMapIcon(GPSMarker[playerid]);
            }
            GPSMarker[playerid] = CreateDynamicMapIcon(gInfo[listitem][Pos][0], gInfo[listitem][Pos][1], gInfo[listitem][Pos][2], 41, 0, -1, -1, playerid, 100000.0);
            Streamer_SetIntData(STREAMER_TYPE_MAP_ICON, GPSMarker[playerid], E_STREAMER_STYLE, MAPICON_GLOBAL);
            Streamer_Update(playerid);
            format(string, sizeof(string), "The location: %s, has been marked on your mini-map.", inputtext);
            SendClientMessage(playerid, 0xFFFF00FF, string);
        }
        return 1;
    }
    return 1;
}

/* Stocks */
stock playername(playerid)
{
    new pname[24];
    GetPlayerName(playerid, pname, sizeof(pname));
    return pname;
}