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A simulation container based on Celluloid.

Usage

Example

routes:

Sim::Net::Router.define do |router|

  router.forward :test, to: Example::SimpleHandler # allow everybody

  router.forward :admin, to: Example::SimpleHandler do |player_id|
    Player.find(player_id).admin? # allow only admins
  end

end

handle incoming player events and broadcast them back

{scope: 'test', action: 'reverse', args: 'hello world'}

class Example::SimpleHandler < Sim::Net::MessageHandler::Base

  def reverse text
    queue_player_event do |player_id|
      broadcast player_id, scope: 'test', action: 'reverse', answer: text.reverse
    end
  end

end

execute simulation. The class must have a reader to the simulated object and provide a sim method

class Tick

  attr_reader :object

  def initialize object
    @object = object
  end

  def sim
    # calculate next object state
  end

end

Examples

see examples directory

Requirements

• ruby 2.4.x
• node 8.3.x

Install

sim server:

$> bundle

middleware:

$> cd examples/node
$> npm install
$> webpack

Run Examples

sim server:

$> ruby examples/server/boot.rb

middleware:

$> cd examples/node && node --harmony app.js

Development

create a npm link to have all the recent changes in the examples

in folder node issue: $>npm link

then in examples/node create the sym link like so: $>npm link simulator-middleware

Testing

for better output comment out Celluloid.logger = nil in spec_helper.rb

Debug PlayerServer

test unix socket with netcat:

$> nc -U tmp/sockets/pong.sock