CCash

A webserver hosting a bank system for Minecraft, able to be used from web browser or from CC/OC if you're playing modded.

the currency model most Minecraft Servers adopt if any, is resource based, usually diamonds, this model is fraught with issues however:

• the primary issue is minecraft worlds are infinite leading to hyper inflation as everyone accrues more diamonds
• there is no central authority minting the currency, any consumer can introduce more diamonds to the system
• some resources are passively reapable, making the generation of currency a larger focus then of products
• locality is required for transaction
• theft is possible, ownership is possession based

CCash solves these issues and adds a level of abstraction, the main philosophy of CCash is to have fast core operations that other services build on

Build

drogon depedencies

sudo apt install libjsoncpp-dev
sudo apt install uuid-dev
sudo apt install openssl
sudo apt install libssl-dev
sudo apt install zlib1g-dev

building the project

git clone --recurse-submodule https://github.com/EntireTwix/CCash/
mkdir build
cd build
cmake ..
make -j<threads>

then edit config.json to include the paths to your certs for HTTPS (I use certbot), or just remove the listener for port 443.

vim ../config.json

finally, run the program

sudo ./bank <admin password> <saving frequency in minutes> <threads>

Connected Services

Go to {ip}/BankF/help to see the bank's methods (also found in releases as help.html). Using the Bank's API allows (you/others) to (make/use) connected services that utilize the bank, a couple ideas are

Implemented:

• Web Frontend
• CC Frontend
• CC Shop
• CC API
• CC ATM an ATM for economies allowing for an initial exchange to start up

In-Dev:

• a Market
• Ebay equivelant

Ideas:

• Gambling
• Shipping
• High-level bank operations such as loans
• Some trust based system for transactions similiar to Paypal

**WARNING** : abruptly killing the program will result in data loss, use Close() method to close safely

FAQ

Q: how is money initially injected into the economy

A: you can take any approach you want, one that I recommend is using a one way exchange via the CC ATM above to have players mine the initial currency, this rewards early adopters and has a sunk cost effect in that the resource is promptly burned

Contributions

Thank you to the contributors

Name	Work
Expand	Frontend
React	CC {API, Shops, and ATM}
Doggo	Logs loading/adding Optimized

Features

Performance

• In memory database instead of on disk
• NOT written in Lua, like a OC/CC implementation
• written in C++, arguably the fastest language
• multi-threaded
• parallel hashmaps a far superior HashMap implementation to the STD, that also benefits from multi-threaded
• Drogon is a very fast web framework
• Lightweight, anecodotally I experienced 0.0% idle, <1% CPU usage on average, 7% at peak, 1000 requests in 0.85s

Safety

• Tamper Proof relative to an in-game implementation
• Auto-Saving and Saves on close
• HTTPS (OpenSSL)

Accessibility

• RESTful API for connected services like a market, gambling, or anything else you can think of
• able to be used millions of blocks away, across dimensions, servers, vanilla or modded. In contrast to an in-game modded implementation that would be range limited.
• Logging of all transactions, configurable in log_consts.hpp

Dependencies

• Parallel HashMap
• Drogon
• XXHASH