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This is an Agent Based Model simulator of the Zombie Disease.

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Zombie Epidemic

This is an Agent Based Model simulator of the Zombie Disease.

Examples

Below two results obtained with the simulator. Legend:

  • green: healthy human
  • yellow: infected human
  • red: zombie
  • black: killed human or zombie

Human wins! Zombie wins!

I've presented the simulator first at Paris.rb Jan 2015.

Installation

Install it yourself as:

$ gem install zombie_epidemic

Usage

Run the simulation

With the default parameters, you just type:

zombie_epidemic

It will store the results as PNG files into the current directory.

Build the movie from the PNG sequences

zombie_epidemic movie

The Model

Space

The space is a discrete 2D bounded map. Each point (x, y) is a square that could be occupied by an agent or an obstacle.

Time

The time is discrete. Each time step represents enough time for a normal action, such as a step. It is about 0.5 second.

An Agent

An agent is a person charactherized by the following:

  • a position, and
  • a health state.

Every time step, an agent can:

  • walk,
  • attack, or
  • stay.

Without any cost, an agent perceive:

  • his surrounding (obstacles, position of agents), and
  • neighbors' status (zombie or not)

The quality of the perceptions and actions are altered by the health state: a zombie doesn't perceive well, neither it walks well.

The health state

The disease model SIZX is implemented as the following state transition machine:

S -------> I -------> Z -------> X
|          |                     ^
|          |---------------------|
|--------------------------------|

TODO

  • other characteristics (e.g. energy level)
  • other actions
  • other perceptions
  • load custom map
  • custom strategy

Contributing

  1. Fork it ( https://github.com/toch/zombie_epidemic/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

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This is an Agent Based Model simulator of the Zombie Disease.

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