This is BBL Market, a collab mod between ExaltedZoro and benbenlaw, built specially for the Opolis Inc modpack. Though other pack developers are more than welcome to include it in their own modpacks.

Features

The Market - A block used to automate the buying and selling of items. The items required for a recipe are the license, the input and the output. Inputs have full component data and tag support. If a license has more than one recipe tied to it, the Market will randomly pick one from the available list.

Licenses - These are items that tell the Market what orders to use. Any item can be used, so long as it has the "market:licenses" tag. Licenses also have full tag support.

If you want licenses to expire after a period of time, give them durability! The Market will attempt to damage/break the item in the license slot every 30 seconds (or 600 ticks, if your TPS isn't exactly 20).

Demand - Demand is used to add more flavour to the automation of the Market. For every 3 orders completed in the last minute, demand will be reduced by 0.1 to a minimum of 0.2. This value is then used as a multiplier to the price of each order, ranging from 1x to 5x. In other words, the more you use it, the more expensive it gets. Note that regardless of demand or variation, order sizes will never go above a full stack of any item.

Don't want demand to mess with your orders? No worries, simply add the "market:no_demand" tag to the license item and prices will stay neutral.

Variation - A small change to order sizes that can be defined in the recipe. Each order will have a size between the default - variation and the default + variation. So for a default size 12 and variation 4, each order will be between 8 and 16. The new value is the one that demand is used on.