Economia.js

Economia.js is a Javascript port of [bazaarBot] (https://github.com/larsiusprime/bazaarBot), making it a perfect fit for HTML5 based games that want to include some sort of market simulation.

Description:

A simple agent-based free market simulator engine.

This engine consists of various "Agents" trading commodities, with emergent free-floating prices that rise and fall according to the laws of supply and demand.

The eventual goal is to create an open-source "Economics engine" for games and simulations, much like contemporary open-source "Physics engines."

Based on "Emergent Economies for Role Playing Games" by Jonathon Doran and Ian Parberry.

Source: Procedural Content Generation

Usage:

• Include economia.js:<script src="economia.min.js"></script>
• Add some data:

var dummyData = {
  agents: [
    {
      role: 'farmer',			// type of agent
      needs: {'food':1,'tools':1},	// commodity name followed by ideal amount
      produce: {'grain':4}
    },
    {
      role: 'farmer',
      needs: {'food':1,'tools':1},
      produce: {'grain':4}
    },
    {
      role: 'miner',
      needs: {'water':2,'tools':2},
      produce: {'ore':4}
    },
    {
      role: 'blacksmith',
      needs: {'water':2,'ore':2, 'tools': 1},
      produce: {'tools':4}
    },
    {
      role: 'baker',
      needs: {'grain':2},
      produce: {'food':4}
    },
    {
      role: 'farmer',
      needs: {'water':2,'tools':2},
      produce: {'grain':4}
    }

  ],

  commodities: [
    {
      name: 'water',
      size: 0
    },
    {
      name: 'tools',
      size: 1
    },
    {
      name: 'grain',
      size: 3
    },
    {
      name: 'ore',
      size: 3
    },
    {
      name: 'food',
      size: 3
    }
  ]
};

• Instantiate an economy: var market = new Economy(dummyData)
• Call the tick method of your economy object to simulate a round: market.tick()

Building from source:

Node to the rescue!

• Clone the repository
• Run npm install from the main folder
• Edit Gruntfile.js to reflect any changes you have made to the source
• Run grunt in the main folder
• All done! Your compiled economia.js and minified economia.min.js should be in the build folder