a "Framework" to make Multi-Agent Simulations in Nit

Introduced classes

class Agent

actors :: Agent

class ClockAgent

actors :: ClockAgent

Master of the simulation, it initiates the steps and waits for them to terminate

Redefined classes

redef class Sys

actors :: agent_simulation $ Sys

The main class of the program.

All class definitions

class Agent

actors $ Agent

class ClockAgent

actors $ ClockAgent

Master of the simulation, it initiates the steps and waits for them to terminate
redef class Sys

actors :: agent_simulation $ Sys

The main class of the program.
package_diagram actors::agent_simulation agent_simulation actors actors actors::agent_simulation->actors pthreads pthreads actors->pthreads ...pthreads ... ...pthreads->pthreads actors::simple_simulation simple_simulation actors::simple_simulation->actors::agent_simulation a_star-m a_star-m a_star-m->actors::simple_simulation a_star-m... ... a_star-m...->a_star-m

Ancestors

module abstract_collection

core :: abstract_collection

Abstract collection classes and services.
module abstract_text

core :: abstract_text

Abstract class for manipulation of sequences of characters
module array

core :: array

This module introduces the standard array structure.
module bitset

core :: bitset

Services to handle BitSet
module bytes

core :: bytes

Services for byte streams and arrays
module circular_array

core :: circular_array

Efficient data structure to access both end of the sequence.
module codec_base

core :: codec_base

Base for codecs to use with streams
module codecs

core :: codecs

Group module for all codec-related manipulations
module collection

core :: collection

This module define several collection classes.
module concurrent_collections

pthreads :: concurrent_collections

Introduces thread-safe concurrent collections
module core

core :: core

Standard classes and methods used by default by Nit programs and libraries.
module environ

core :: environ

Access to the environment variables of the process
module error

core :: error

Standard error-management infrastructure.
module exec

core :: exec

Invocation and management of operating system sub-processes.
module extra

pthreads :: extra

Offers some POSIX threads services that are not available on all platforms
module file

core :: file

File manipulations (create, read, write, etc.)
module fixed_ints

core :: fixed_ints

Basic integers of fixed-precision
module fixed_ints_text

core :: fixed_ints_text

Text services to complement fixed_ints
module flat

core :: flat

All the array-based text representations
module gc

core :: gc

Access to the Nit internal garbage collection mechanism
module hash_collection

core :: hash_collection

Introduce HashMap and HashSet.
module iso8859_1

core :: iso8859_1

Codec for ISO8859-1 I/O
module kernel

core :: kernel

Most basic classes and methods.
module list

core :: list

This module handle double linked lists
module math

core :: math

Mathematical operations
module native

core :: native

Native structures for text and bytes
module numeric

core :: numeric

Advanced services for Numeric types
module protocol

core :: protocol

module pthreads

pthreads :: pthreads

Main POSIX threads support and intro the classes Thread, Mutex and Barrier
module queue

core :: queue

Queuing data structures and wrappers
module range

core :: range

Module for range of discrete objects.
module re

core :: re

Regular expression support for all services based on Pattern
module ropes

core :: ropes

Tree-based representation of a String.
module sorter

core :: sorter

This module contains classes used to compare things and sorts arrays.
module stream

core :: stream

Input and output streams of characters
module text

core :: text

All the classes and methods related to the manipulation of text entities
module time

core :: time

Management of time and dates
module union_find

core :: union_find

union–find algorithm using an efficient disjoint-set data structure
module utf8

core :: utf8

Codec for UTF-8 I/O

Parents

module actors

actors :: actors

Abstraction of the actors concepts

Children

module simple_simulation

actors :: simple_simulation

Using agent_simulation by refining the Agent class to make

Descendants

module a_star-m

a_star-m

# a "Framework" to make Multi-Agent Simulations in Nit
module agent_simulation is example, no_warning("missing-doc")

import actors

# Master of the simulation, it initiates the steps and waits for them to terminate
class ClockAgent
	actor

	# Number of steps to do in the simulation
	var nb_steps: Int

	# List of Agents in the simulation
	var agents: Array[Agent]

	# Number of agents that finished their step
	var nb_finished = 0

	fun do_step do
		for a in agents do a.async.do_step
		nb_steps -= 1
	end

	fun finished_step do
		nb_finished += 1
		if nb_finished == agents.length then
			nb_finished = 0
			if nb_steps != 0 then async.do_step
		end
	end
end

class Agent
	actor

	# Doing a step in the simulation
	fun do_step do
	end

	fun end_step do clock_agent.async.finished_step

end

redef class Sys
	var clock_agent: ClockAgent is noautoinit,writable
end
lib/actors/examples/agent_simulation/agent_simulation.nit:15,1--60,3