[Twinny]

Update!
Bank System v 1.1
After receving advice from Skyld I have made a improved bank system using classes.

DBNPC named BankDB

PHP Code:

function onCreated()
{
  this.interest = 0.01;
  this.hour = 0;
  Interest();
  setTimer(3600);
}

function onTimeout()
{
  this.hour ++;
  if (this.hour => 24)
  {
    echo("Interest Added");
    Interest();
    this.hour = 0;
  }
setTimer(3600);
} 

public function Interest()
{
  for (int : this.accounts)
  {
    this.("acc"@int) = int(this.("acc"@int) * 1.01);
  }
} 


Class with bank functions

PHP Code:

public function bankCreate(amount)
{
  if (BankDB.accounts.index(player.account) = -1)
  {
    if (player.rupees => amount)
    {
      BankDB.accounts.add(player.account);
      BankDB.("acc"@player.account) = amount;
      player.rupees -= amount;
      return True;
    }
    else return "nem";  
  }
  else return false;
}

public function bankDeposit(amount)
{
  if (BankDB.accounts.index(player.account) => 0)
  {
    if (player.rupees => amount)
    {
      BankDB.("acc"@player.account) += amount;
      player.rupees -= amount;
      return true;
    }
    else return "nem"; //Not enough money
  }
  else return "nba"; //No bank account  
}

public function bankWithdraw(amount)
{
  if (BankDB.accounts.index(player.account) => 0)
  {
    if (BankDB.("acc"@player.account) => amount)
    {
      BankDB.("acc"@player.account) -= amount;
      player.rupees += amount;
      return true;
    }
    else return "nem";
  }
  else return "nba";   
}

public function bankBalance()
{
  if (BankDB.accounts.index(player.account) => 0)
  {
    return BankDB.("acc"@player.account);
  }
  else return "nba";
}

public function bankTransfer(amount,pl)
{
/* Lot's of Tests */
  if (BankDB.accounts.index(player.account) => 0)
  {
    if(BankDB.accounts.index(pl) => 0)
    {
      if (BankDB.("acc"@player.account) => amount)
      {
        BankDB.("acc"@pl) += amount;
        BankDB.("acc"@player.account) -= amount;
        return true;
      }
      else return "nem";
    }
    else return "pdne"; //Player does not exist
  }
  else return "nba";
} 


Finally add in your Control-NPC

PHP Code:

function onActionPlayeronline()
{
  player.join("classname");
}

function onRCChat()
{
  if (params[0] == "interest")
  {
    if (player.account == "Whoever")
    {
      echo("Manual Interest Added!");
      BankDB.Interest();
    }
  }
} 


Commands Available

PHP Code:

player.bankCreate(amount);
player.bankDeposit(amount);
player.bankWithdraw(amount);
player.bankBalance();
player.bankTransfer(amount,account); 


Simple enough to use. Call the commands serverside eg. player.bankDeposit(400);

May add a GUI script to use the Bank system next.