I am logging on the forum after very long time. Happy to see that Bitcoin is still going strong and have strong community behind it. Anyways, I am currently building a project which requires an option through which users can deposit bitcoins to their account. It is somewhat similar to option provided by most of the gambling site.

Unique Address for every user ---> User deposits btc to that address ---> BTC goes to site's wallet ---> Similar amount reflects in user's front-end as balance

How can I implement this? If there's any thread where this topic has been already discussed then please refer me to that.

Also, I am not looking for options like BitPay or CoinGate. I want to learn how to develop it from scratch.