[sim_sima]

I made one already. Here:

pawn Код:

/*
Login / register system.
Saves Money, HP og score.
Remember to create a folder called "Users"
inside the "scriptfiles" folder on your server.
*/

// Includes
#include <a_samp>
#include <dini>
#include <dudb>
#include <dutils>

// Defines
#define UserFile "Users/%s.ini"
#define COLOR_YELLOW 0xFFFF00FF
#define COLOR_NORMALRED 0xAF0000FF
#define COLOR_SYSTEMRED 0xFF0000FF
#define COLOR_ORANGE 0xFF9900AA
#define COLOR_PINK 0xFF66FFAA
#define COLOR_VIOLET 0x9955DEEE
#define COLOR_WHITE 0xFFFFFFAA
#define COLOR_PURPLE 0xC2A2DAAA
#define COLOR_GREEN 0x009900FF
#define COLOR_GREY 0xAFAFAFFF

// Enums
enum pInfo
{
    pMoney,
    pHealth,
    pScore,
    pWantedLevel
}

// Variables
new gPlayerLogged[MAX_PLAYERS];
new PlayerInfo[MAX_PLAYERS][pInfo];
new OnceLogged[MAX_PLAYERS];

// Unused
#pragma unused ret_memcpy

// Callbacks
public OnFilterScriptInit()
{
    print("Login/Register System by Sim_sima Loaded!");
    return 1;
}

public OnPlayerConnect(playerid)
{
    gPlayerLogged[playerid] = 0;
    OnceLogged[playerid] = 0;
    new name[MAX_PLAYER_NAME], file[128];
    GetPlayerName(playerid, name, sizeof(name));
    format(file, sizeof(file), UserFile, name);
    if(!dini_Exists(file))
    {
        new string[75 + MAX_PLAYER_NAME];
        GetPlayerName(playerid, name, sizeof(name));
        format(string, sizeof(string), "( ! ) The username '%s' is not registered. Please enter a password",name);
        SendClientMessage(playerid, COLOR_GREEN, string);
        ShowPlayerDialog(playerid, 1, DIALOG_STYLE_INPUT, "{FFFF00}Account Management", "{009900}Register new account\n{FFFFFF}Enter a password", "Register", "Quit");
    }
    if(dini_Exists(file))
    {
        new string[80 + MAX_PLAYER_NAME];
        GetPlayerName(playerid, name, sizeof(name));
        format(string, sizeof(string), "( ! ) The username '%s' is already registered. Please enter your password",name);
        SendClientMessage(playerid, COLOR_GREEN, string);
        ShowPlayerDialog(playerid, 2, DIALOG_STYLE_INPUT, "{FFFF00}Account Management", "{FFFFFF}Enter your password", "Login", "Quit");
    }
    return 1;
}

public OnPlayerDisconnect(playerid, reason)
{
    new name[MAX_PLAYER_NAME], file[128];
    GetPlayerName(playerid, name, sizeof(name));
    format(file, sizeof(file), UserFile, name);
    if(gPlayerLogged[playerid] == 1)
    {
        if(dini_Exists(file))
        {
            PlayerInfo[playerid][pMoney] = GetPlayerMoney(playerid);
            PlayerInfo[playerid][pScore] = GetPlayerScore(playerid);
            PlayerInfo[playerid][pWantedLevel] = GetPlayerWantedLevel(playerid);
            dini_IntSet(file, "Money",PlayerInfo[playerid][pMoney]);
            new Float:Health;
            GetPlayerHealth(playerid, Health);
            dini_FloatSet(file, "Health", floatround(Health));
            dini_IntSet(file, "Score", PlayerInfo[playerid][pScore]);
            dini_IntSet(file, "WantedLevel", PlayerInfo[playerid][pWantedLevel]);
        }
    }
    gPlayerLogged[playerid] = 0;
    OnceLogged[playerid] = 0;
    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    if(dialogid == 1)
    {
        new name[MAX_PLAYER_NAME], file[128];
        GetPlayerName(playerid, name, sizeof(name));
        format(file, sizeof(file), UserFile, name);
        if(response)
        {
            if(strlen(inputtext) > 15)
            {
                ShowPlayerDialog(playerid, 1, DIALOG_STYLE_INPUT, "{FFFF00}Account Management", "{AF0000}Password must be between 5-15 characters\n{FFFFFF}Enter a password", "Login", "Quit");
            }
            else if(strlen(inputtext) < 5)
            {
                ShowPlayerDialog(playerid, 1, DIALOG_STYLE_INPUT, "{FFFF00}Account Management", "{AF0000}Password must be between 5-15 characters\n{FFFFFF}Enter a password", "Login", "Quit");
            }
            else
            {
                dini_Create(file);
                dini_IntSet(file, "Password", udb_hash(inputtext));
                dini_IntSet(file, "Money",PlayerInfo[playerid][pMoney] = 0);
                dini_FloatSet(file, "Health",PlayerInfo[playerid][pHealth] = 100);
                dini_IntSet(file, "Score",PlayerInfo[playerid][pScore] = 0);
                dini_IntSet(file, "WantedLevel", PlayerInfo[playerid][pWantedLevel] = 0);
                GameTextForPlayer(playerid, "Welcome", 3000, 5);
                gPlayerLogged[playerid] = 1;
                OnceLogged[playerid] = 1;
            }
        }
        else
        {
            SendClientMessage(playerid, COLOR_SYSTEMRED, "( ! ) You need to log in to play on this server. Please come again soon");
            Kick(playerid);
            gPlayerLogged[playerid] = 0;
            OnceLogged[playerid] = 0;
        }
    }
    if(dialogid == 2)
    {
        new name[MAX_PLAYER_NAME], file[128];
        GetPlayerName(playerid, name, sizeof(name));
        format(file, sizeof(file), UserFile, name);
        if(!response)
        {
            SendClientMessage(playerid, COLOR_SYSTEMRED, "( ! ) You need to log in to play on this server. Please come again soon");
            Kick(playerid);
        }
        new tmp;
        tmp = dini_Int(file, "Password");
        if(udb_hash(inputtext) != tmp)
        {
            ShowPlayerDialog(playerid, 2, DIALOG_STYLE_INPUT, "{FFFF00}Account Management", "{AF0000}Wrong password\n{FFFFFF}Enter your password", "Login", "Quit");
        }
        else
        {
            gPlayerLogged[playerid] = 1;
            OnceLogged[playerid] = 1;
            GameTextForPlayer(playerid, "Welcome", 3000, 5);
            // Give loaded stuff to player from file
            GivePlayerMoney(playerid, dini_Int(file, "Money"));
            SetPlayerHealth(playerid, dini_Float(file, "Health"));
            SetPlayerScore(playerid, dini_Int(file, "Score"));
            SetPlayerWantedLevel(playerid, dini_Int(file, "WantedLevel"));
        }
    }
    return 1;
}

public OnPlayerRequestSpawn(playerid)
{
    new name[MAX_PLAYER_NAME], file[128];
    GetPlayerName(playerid, name, sizeof(name));
    format(file, sizeof(file), UserFile, name);
    if(OnceLogged[playerid] == 1)
    {
        SetPlayerWantedLevel(playerid, dini_Int(file, "WantedLevel"));
        OnceLogged[playerid] = 0;
    }
    if(gPlayerLogged[playerid] == 0)
    {
        SendClientMessage(playerid, COLOR_SYSTEMRED, "( ! ) Please log in first");
        return 0;
    }
    return 1;
}

public OnFilterScriptExit()
{
    for(new i=0; i<MAX_PLAYERS; i++)
    {
        CallLocalFunction("OnPlayerDisconnect", "%d", i);
    }
    return 1;
}

This is very simple, and was the first login/register system i ever made
Feel free to use it. Remember the dini, dudb and dutils includes.