Login/Register SQLite

//SQLite LOGIN/REGISTER SCRIPT
//Es ist NICHTS besonderes, es soll nur leuten helfen, die mit SQLite arbeiten wollen, aber keine idee haben wie sie mit einem login system anfangen soll
//Schaut doch mal auf meinem Youtube Kanal vorbei.    http://www.youtube.com/user/Music4You43

//================ INCLUDES ================
#include <a_samp>
#include <ocmd>
#include <Limit>
#include <md5>
//================ SERVERDEFINES ================
#define servername Reallife

#define SCM SendClientMessage
#define rot 0xFF0A00FF
#define gruen 0x4BB400FF
#define orange 0xFF9600FF
#define grau 0xB4B4B4FF

//================ NEWS ================
new DB:Data;

//================ ENUMS ================
enum user
{
	pName[MAX_PLAYER_NAME],
	pLogged,
}
new UserInfo[MAX_PLAYERS][user];

enum
{
	DIALOG_REG,
	DIALOG_LOG,
	DIALOG_START,
}

main()
{
	return 1;
}

public OnGameModeInit()
{
	Data = db_open("Script.db");
	SetGameModeText(#servername);
	AddPlayerClass(0, 1958.3783, 1343.1572, 15.3746, 269.1425, 0, 0, 0, 0, 0, 0);
	createtable();
	print("====================================================");
	print("SQLite Grundscript by Items4Landwird aka. Music4You");
	print("====================================================\n");
	return 1;
}

public OnGameModeExit()
{
	new i=0;
	for(;i<MAX_PLAYERS;i++)
	{
		SavePlayer(i);
	}
	return 1;
}

public OnPlayerRequestClass(playerid, classid)
{
    new DBResult:Result,str[75],rows,string[400];
	#pragma unused rows
	format(str,sizeof(str),"SELECT * FROM `accounts` WHERE Name = '%s'",SpielerName(playerid));
	Result=db_query(Data,str);
	if(db_num_rows(Result) > 0)
	{
        format(string,sizeof(string),"Herzlich Willkommen Zurück %s, auf ["#servername"]\n\nGebe dein Passwort ein\nBitte halte dich an die Regeln\n\nViel spaß wünscht dir das Adminteam von ["#servername"]",SpielerName(playerid));
		ShowPlayerDialog(playerid,DIALOG_LOG,DIALOG_STYLE_PASSWORD,"Login",string,"Weiter","");
	}
	else
	{
		format(string,sizeof(string),"Herzlich Willkommen %s, auf ["#servername"]\n\nUm auf unseren Server spielen zu können benötigst du ein Sicheres Passwort\nBitte halte dich an die Regeln\n\nViel spaß wünscht dir das Adminteam von ["#servername"]",SpielerName(playerid));
		ShowPlayerDialog(playerid,DIALOG_REG,DIALOG_STYLE_PASSWORD,"Register",string,"Weiter","");
	}
 	db_free_result(Result);
	return 1;
}

public OnPlayerConnect(playerid)
{
	return 1;
}

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

public OnPlayerSpawn(playerid)
{
	if(UserInfo[playerid][pLogged]!=1)return 0;
	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 1;
}

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

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

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

public OnPlayerEnterCheckpoint(playerid)
{
	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[])
{
	switch(dialogid)
	{
		case DIALOG_REG:
		{
			if(response)
			{
			    new string[400],query[400];
				if(!strlen(inputtext))
				{
					format(string,sizeof(string),"%s, Gebe ein Passwort ein\n\nUm auf unseren Server spielen zu können benötigst du ein Sicheres Passwort\nBitte halte dich an die Regeln\n\nViel spaß wünscht dir das Adminteam von ["#servername"]",SpielerName(playerid));
					ShowPlayerDialog(playerid,DIALOG_REG,DIALOG_STYLE_PASSWORD,"Register",string,"Weiter","");
				}
				format(query,sizeof(query),"INSERT INTO `accounts` (`Name`,`Passwort`,`Geld`,`Level`) VALUES ('%s','%s','1000','1')",SpielerName(playerid),MD5_Hash(inputtext));
				db_query(Data,query);
				GivePlayerMoney(playerid,1000);
				SetPlayerScore(playerid,1);
				SpawnPlayer(playerid);
			}
			else return Kick(playerid);
		}
		case DIALOG_LOG:
		{
			if(response)
			{
                new DBResult:Result,str[75],rows,string[400],query[128];
				#pragma unused rows
				format(str,sizeof(str),"SELECT * FROM `accounts` WHERE Name = '%s' AND Passwort='%s'",SpielerName(playerid),MD5_Hash(inputtext));
				Result=db_query(Data,str);
				if(db_num_rows(Result) > 0)
				{
					db_get_field_assoc(Result,"Level",str,sizeof(str));
 					SetPlayerScore(playerid,strval(str));
                    db_get_field_assoc(Result,"Geld",str,sizeof(str));
 					GivePlayerMoney(playerid,strval(str));
 					SpawnPlayer(playerid);
 					UserInfo[playerid][pLogged]=1;
 					SCM(playerid,gruen,"Erfolgreich eingeloggt");
 					format(query,sizeof(query),"UPDATE `accounts` SET `IP`='%s' WHERE `Name`='%s'",SpielerIP(playerid),SpielerName(playerid));
 					db_query(Data,query);
				}
				else
				{
                    format(string,sizeof(string),"%s, Gebe dein Passwort ein\n\nBitte halte dich an die Regeln\n\nViel spaß wünscht dir das Adminteam von ["#servername"]",SpielerName(playerid));
					ShowPlayerDialog(playerid,DIALOG_LOG,DIALOG_STYLE_PASSWORD,"Login",string,"Weiter","");
				}
			}
		}
	}
	return 1;
}

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

stock createtable()
{
	db_query(Data,"CREATE TABLE IF NOT EXISTS `accounts`(`Name`,`Passwort`,`IP`,`Geld`,`Level`)");
	print("Tabellen erstellt");
	return 1;
}
stock SpielerName(playerid)
{
	new name[MAX_PLAYER_NAME];
	GetPlayerName(playerid,name,sizeof(name));
	return name;
}
stock SpielerIP(playerid)
{
	new getip[16];
	GetPlayerIp(playerid,getip,sizeof(getip));
	return getip;
}
stock SavePlayer(playerid)
{
	new query[400];
	format(query,sizeof(query),"UPDATE `accounts` SET `Level`='%d',`Geld`='%d',`IP`='%s' WHERE `Name`='%s'",
	GetPlayerScore(playerid),GetPlayerMoney(playerid),SpielerIP(playerid),SpielerName(playerid));
	db_query(Data,query);
	return 1;
}