DEVS abbreviating Discrete Event System Specification is a modular and hierarchical formalism for modeling and analyzing general systems that can be discrete event systems which might be described by state transition tables, and continuous state systems which might be described by differential equations, and hybrid continuous state and discrete event systems. DEVS is a timed event system.
Add this line to your application's Gemfile:
gem 'devs'
And then execute:
$ bundle
Or install it yourself as:
$ gem install devs
Inside of your Ruby program do:
require 'devs'
...to pull it in as a dependency.
The following API documentation is available :
require 'devs'
simulation = DEVS.build do
duration 50
add_model do
name :traffic_light
add_output_port :out
init do
@state = :red
self.next_activation = 0
end
time_advance { self.next_activation }
output do
post @state, :out
end
after_output do
@state, @sigma = case @state
when :red
[:green, 5]
when :green
[:orange, 20]
when :orange
[:red, 2]
end
end
end
end
simulation.simulateFor more examples, see the examples folder
- Bernard P. Zeigler, Herbert Praehofer, Tag Gon Kim. Theory of Modeling and Simulation. Academic Press; 2 edition, 2000. ISBN-13: 978-0127784557
- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request