I am not a native English speaker and I am using google translator. If I make any misunderstanding, I apologize(T＿T)

And also, please check the config file every time when update the plugin, and make sure the setting option is matching the newest.

This is a market plugin to prevent mounting inflation in Minecraft servers. The optimized power index function and the inverse function are used to converge the selling price. It could solve the problem of server economic imbalance caused by the high production capacity of certain items in industrial-type servers. In Summary, The richer the player is, the less profit the player receives.

By using a convergence function based on the player's assets, items sold by the player will gradually depreciate. Items depreciate rapidly after reaching the specified baseline, and gradually decrease towards 0 but never reach 0. Using this method, players can begin to adapt to price convergence at the beginning of the entry and effectively curb the further expansion of server oligarch players' assets.

To prevent players from trading money by other plugins, DemonMarket will disable every command except /mt pay.

You could turn this off in config.yml.

Usage

Players could use /demonmarket or /mt

/mt gui - Open the acquire box
/mt list - Show the acquire list
/mt sell - Sell items in your hand
/mt sell all - Sell items in your hand and the same things in your inventory
/mt pay - Pay someone money
/mt price - Check the price
/mt help - Check helps
/mt shop - Buy stuff from shop
/mt market - Open the market
/mt market sell [price] - Sell the item in hand to market

Also ：dm, dmt, demonmarket

Admins could use /demonmarketadmin or /mtadmin

/mtadmin set [price] - Set price for the item （DemonMaket has 300 items ready to sell）
/mtadmin nbtset [price] - Set price for the nbt item
/mtadmin name - Check name info
/mtadmin nbt - Check nbt info
/mtadmin reload - Reload plugin
/mtadmin shopset [price] - Set price for the item in the shop
/mtadmin shopnbtset [price] - Set price for the nbt item in the shop
/mtadmin shop - Shop management panel
/mtadmin market - Market management panel

Also：dmadmin, dmtadmin, demonmarketadmin

Example

Set diamond-block worth $440.

You could receive $432 if you have only $800

You could receive $217 if you have $600000

You could receive $0.69 and even sold 64 diamond blocks if you have $50000000

Tutorial

Permission

demonmarket.use - Player need this permission node to use demonmarket
If you are using Groupmanager, try /mangaddp builder demonmarket.use or /mangaddp default demonmarket.use
If you are using luckperm, try /lp editor

config.yml

lang: Set language manually.
TaxRate: Tax rate.
OP: The tax beneficiary. If you don't want to use it, just leave it blank.
BasicProperty: The average balance of single player in mathematical expectation.
Round: Enable and make the numbers approximate(shorter and easier to read)
enable-demon-tax: Enable progressive tax rate
Fitler: For SlimeFun Plugin. Enable this option to block any items with lore being sold. Attention, this might cause the NBT support disable
disable-pay: Enable this option to prevent user from paying others by using ess or others plugin.
disable-pay-list: Set the paying command you want to block.
disable-sell: Enable this option to prevent user from selling others by using ess or others plugin.
disable-sell-list: Set the selling command you want to block.
may-pay: Max amount of money can be transfer in a transaction.Set -1 to disable limitation, set 0 to disable pay command.
pay-unit: Transfer unit. All transfer amount will be split as pay-unit to transfer. The tax will be calculated times.
payer-tax: whether the payer pays the transfer tax (the tax payed by the receiver in default)
auto-refresh: Enable to auto refresh the price in gui
auto-refresh-gap: Refresh interval (second per time)
disable-shop: disable mt shop command
market.disable-market: disable mt market command.
market.max-user-sell: Maximum number of user listings
market.sell-tax-rate: Handling fee for players selling items, percentage
market.diasble-demon-tax: disable demon tax in market profit

Mathematical Theory

TAX=（1 - TaxRate）

Set the price of diamond block is $440

- When the BasicProperty was set to 5000, the profit goes with players deposit like follow

- When the BasicProperty was set to 500000, the profit goes with players deposit like follow

You can also draw some charts like these by using my another tool, the DemonCalculator, so that you could decide the basic property setting.

Developing

Menu Panel[✓]
Plaryer market[✓✓✓]
Official Shop[✓✓✓]
Acquire list [✓]
GUI support [✓]
NBT Support [✓]
Use command to set price [✓]
Check item name with command [✓]

About

MIT lisence
If you have any suggestion, complain or recommend function, don't be hesitated and contact me via GitHub or spigot, please.
If you can help with translating, I will be appraciate!

Contact

Github: https://github.com/Tining123/DemonMarket
Email: tingave201@outlook.com