# Advanced application scheme

applications can also be developed through the Ready Player One public chain , such as the timing task function that is currently not supported by all public chains . When the specified block is reached, the smart contract automatically triggers the corresponding function , and the handling fee consumed by this automatic trigger comes from The balance of the smart contract itself . That is, the developer needs to deposit a certain amount of GAS into the application in advance , or the user will deduct some additional handling fees when using the application as the future GAS timing task fee of the application. Through this function , we can develop very complex scheduled periodic tasks for complex calculations .