physis.core
Class EnvironmentImpl

java.lang.Object
  |
  +--physis.core.EnvironmentImpl

All Implemented Interfaces:

Environment, java.util.EventListener, InteractionEventListener, ProliferationEventListener

public class EnvironmentImpl

extends java.lang.Object

implements Environment

The default implementation for the Environment

Field Summary

private double	copy_mutation_rate
private static java.lang.String	COPY_MUTATION_RATE
private double	delete_rate
private static java.lang.String	DELETE_RATE
private double	divide_mutation_rate
private static java.lang.String	DIVIDE_MUTATION_RATE
private int	input_data_higher_bound
private static java.lang.String	INPUT_DATA_HIGHER_BOUND
private double	insert_rate
private static java.lang.String	INSERT_RATE
private LifeSpace	lifespace
private Nurse	nurse
private static java.lang.String	RANDOM_SEED
private java.util.Random	rnd
private static java.lang.String	TASK_FILE
private TaskLibrary	tasklibrary

Constructor Summary

EnvironmentImpl()
The constructor is private because it's a singleton.

Method Summary

boolean	copyShouldBeMutated() Answers the question: Should the current copied instruction be mutated?
boolean	divideShouldBeMutated() Answers the question: Should the current divided codetape be mutated?
int	getInputData() This provides the input from the environment (~food).
LifeSpace	getLifeSpace()
DigitalOrganism	getNeighbourRandomly(DigitalOrganism digorg) Returns one organism of the neighbours of the organism specified by the parameter.
java.util.Random	getRandom() The only one random-generator in one Physis-instance should be in the environment.
TaskLibrary	getTaskLibrary() Returns the tasklibrary.
void	interactionOccured(InteractionEvent ie) Performed when an organism interacts with its environment.
void	proliferationPerformed(ProliferationEvent pe) When a digital organism divides the new organism must be placed somewhere in the lifespace and the old organism's effective length should be recalculated.
void	rotateForward(DigitalOrganism digorg) Rotates the organism's facing forward.
void	setLifeSpace(LifeSpace lifespace_)
boolean	shouldBeDeleted() Answers the question: Should the current divided codetape be deleted one instruction?
boolean	shouldBeInserted() Answers the question: Should the current divided codetape be inserted extra instructions?

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait

Field Detail

RANDOM_SEED

private static java.lang.String RANDOM_SEED

TASK_FILE

private static java.lang.String TASK_FILE

COPY_MUTATION_RATE

private static java.lang.String COPY_MUTATION_RATE

DIVIDE_MUTATION_RATE

private static java.lang.String DIVIDE_MUTATION_RATE

INSERT_RATE

private static java.lang.String INSERT_RATE

DELETE_RATE

private static java.lang.String DELETE_RATE

INPUT_DATA_HIGHER_BOUND

private static java.lang.String INPUT_DATA_HIGHER_BOUND

rnd

private java.util.Random rnd

nurse

private Nurse nurse

tasklibrary

private TaskLibrary tasklibrary

lifespace

private LifeSpace lifespace

copy_mutation_rate

private double copy_mutation_rate

divide_mutation_rate

private double divide_mutation_rate

insert_rate

private double insert_rate

delete_rate

private double delete_rate

input_data_higher_bound

private int input_data_higher_bound

Constructor Detail

EnvironmentImpl

public EnvironmentImpl()

The constructor is private because it's a singleton. Can be instantiated by calling getInstance().

Method Detail

getTaskLibrary

public TaskLibrary getTaskLibrary()

Returns the tasklibrary.

Specified by:

getTaskLibrary in interface Environment

setLifeSpace

public void setLifeSpace(LifeSpace lifespace_)

Specified by:

setLifeSpace in interface Environment

getLifeSpace

public LifeSpace getLifeSpace()

Specified by:

getLifeSpace in interface Environment

interactionOccured

public void interactionOccured(InteractionEvent ie)

Description copied from interface: InteractionEventListener

Performed when an organism interacts with its environment.

Specified by:

interactionOccured in interface InteractionEventListener

proliferationPerformed

public void proliferationPerformed(ProliferationEvent pe)

Description copied from interface: ProliferationEventListener

When a digital organism divides the new organism must be placed somewhere in the lifespace and the old organism's effective length should be recalculated. The parent organism's VM should be reset. The parent orgainsm should be set fertile. These should be handled in this method by the implementor classes.

Specified by:

proliferationPerformed in interface ProliferationEventListener

getInputData

public int getInputData()

This provides the input from the environment (~food).

Specified by:

getInputData in interface Environment

rotateForward

public void rotateForward(DigitalOrganism digorg)

Rotates the organism's facing forward.

Specified by:

rotateForward in interface Environment

copyShouldBeMutated

public boolean copyShouldBeMutated()

Answers the question: Should the current copied instruction be mutated?

Specified by:

copyShouldBeMutated in interface Environment

divideShouldBeMutated

public boolean divideShouldBeMutated()

Answers the question: Should the current divided codetape be mutated?

Specified by:

divideShouldBeMutated in interface Environment

shouldBeInserted

public boolean shouldBeInserted()

Answers the question: Should the current divided codetape be inserted extra instructions?

Specified by:

shouldBeInserted in interface Environment

shouldBeDeleted

public boolean shouldBeDeleted()

Answers the question: Should the current divided codetape be deleted one instruction?

Specified by:

shouldBeDeleted in interface Environment

getNeighbourRandomly

public DigitalOrganism getNeighbourRandomly(DigitalOrganism digorg)

Description copied from interface: Environment

Returns one organism of the neighbours of the organism specified by the parameter.

Specified by:

getNeighbourRandomly in interface Environment

getRandom

public java.util.Random getRandom()

Description copied from interface: Environment

The only one random-generator in one Physis-instance should be in the environment. There shouldn't be more than one, otherwise accurate experiment repeat would be impossible.

Specified by:

getRandom in interface Environment