MoneyMoneyMoney Description

Overview

MoneyMoneyMoney is a Minecraft Forge mod for Minecraft 1.20.1 built with Java 17. It adds a lightweight player economy centered around a personal wallet, a bank balance, a consumable money item, chat commands, and a simple client menu for managing balances.

From the code currently in the repository, the mod is designed as a self-contained money system rather than a full shop or trading framework. The main gameplay loop is:

1. Players obtain Money items.
2. Using a Money item converts it into wallet currency.
3. Wallet currency can be deposited into a bank balance or withdrawn back out.
4. Players can transfer wallet currency to other online players.
5. Operators can mint additional money items with a command.

Player-Facing Features

1. Money item

The mod registers a single custom item:

• money

When a player uses the item:

• it adds 1 to the player's wallet balance
• it consumes one item unless the player is in an instabuild/creative-like mode
• it shows a status message with the updated wallet total

The item is stackable up to 64.

2. Wallet and bank balances

Each player has two tracked balances:

• walletBalance
• bankBalance

These balances are stored in a Forge capability attached to the player entity. The capability:

• persists as NBT data
• prevents balances from dropping below zero
• supports add/remove operations for both wallet and bank
• provides convenience methods for deposit and withdrawal

3. Commands

The /money command tree provides several actions for server players:

• /money balance Shows wallet and bank totals.
• /money menu Opens the money management screen.
• /money deposit <amount> Moves money from wallet to bank.
• /money withdraw <amount> Moves money from bank to wallet.
• /money transfer <player> <amount> Sends wallet money to another online player.
• /money mint <amount> Operator-only command that creates Money items and places them into inventory.

Transfer logic includes protection against:

• invalid target players
• self-transfer
• spending more wallet money than the sender has

4. Money management screen

The mod includes a custom menu and client screen called Money Manager.

The screen displays:

• wallet balance
• bank balance
• transfer inputs for target player and amount
• deposit amount input
• withdraw amount input

The UI sends actions to the server through a custom packet, and the server validates:

• that the packet came from a player currently using the money menu
• that the amount is greater than zero

Technical Structure

Mod bootstrap

The main mod entrypoint registers:

• item registry
• menu registry
• network messages during common setup

Registries

The project currently registers:

• one item: money
• one menu type: money_menu

Capability system

The economy state is implemented with:

• IPlayerMoneyData interface
• PlayerMoneyCapability concrete implementation
• PlayerMoneyProvider capability provider
• ModCapabilities capability lookup holder
• PlayerMoneyCapabilityRegistration Forge capability registration
• PlayerMoneyEvents capability attachment and clone-copy handling

When players are cloned, wallet and bank balances are copied from the old player instance to the new one.

Networking

The networking layer uses a SimpleChannel with a single packet:

• MoneyActionPacket

Supported packet actions:

• TRANSFER
• DEPOSIT
• WITHDRAW

This keeps server authority over all balance changes initiated from the UI.

Client integration

Client-only setup registers the screen for the custom menu type so the menu opened on the server has a matching client GUI.

Assets and Resources

The resource folder contains:

• English localization entries for commands, buttons, labels, and system messages
• item models
• item textures for several bill denominations:
  • one_dollar
  • five_dollars
  • ten_dollars
  • twenty_dollars
  • fifty_dollars

From the current Java registry code, only the generic money item is actually registered and usable. The extra denomination textures and models appear to be preparatory assets for future expansion.

Observations About Current State

The codebase is functional as a basic personal-currency mod, but it also shows signs of being in-progress:

• gradle.properties still contains Forge example template metadata such as mod_id=examplemod and mod_name=Example Mod
• the Java package names and runtime mod ID are already customized to moneymoneymoney
• resource assets include multiple bill denominations that are not yet registered in code
• mods.toml and pack.mcmeta still rely on template substitutions, so packaging metadata likely needs cleanup before release

Summary

In its current form, MoneyMoneyMoney is a Forge mod that implements a simple per-player economy with:

• a redeemable money item
• wallet and bank storage
• player-to-player transfers
• a management GUI
• command-based administration

It is a solid foundation for a larger economy mod, especially if future work adds multiple bill types, shops, merchants, or persistence beyond the player capability system.

Note: Generated by OpenAI's Codex in Visual Studio Code