com.artemis

Class ComponentManager

java.lang.Object

com.artemis.Manager

com.artemis.ComponentManager

All Implemented Interfaces:

EntityObserver

public class ComponentManager
extends Manager

Handles the association between entities and their components.

Only one component manager exists per World instance, managed by the world.

Author:

Arni Arent

Field Summary

Fields

Modifier and Type	Field and Description
protected ComponentTypeFactory	typeFactory

Fields inherited from class com.artemis.Manager

world

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ComponentManager(int entityContainerSize) Creates a new instance of ComponentManager.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addComponent(Entity e, ComponentType type, Component component) Adds the component of the given type to the entity.
protected void	addComponents(Entity e, ArchetypeBuilder.Archetype archetype)
void	added(Entity e) Called when an entity the observer is interested in is added.
protected void	clean() Removes all components from entities marked for deletion.
protected <T extends Component> T	create(Entity owner, Class<T> componentClass)
void	deleted(Entity e) Called when an entity the observer is interested in is deleted.
protected void	dispose() see World.dispose()
protected Component	getComponent(Entity e, ComponentType type) Get a component of an entity.
protected Bag<Component>	getComponentsByType(ComponentType type) Get all components from all entities for a given type.
Bag<Component>	getComponentsFor(Entity e, Bag<Component> fillBag) Get all component associated with an entity.
protected BitSet	getPackedComponentOwners(ComponentType type)
protected void	removeComponent(Entity e, ComponentType type) Removes the component of given type from the entity.

Methods inherited from class com.artemis.Manager

added, changed, changed, deleted, disabled, enabled, getWorld, initialize, setWorld

Methods inherited from class java.lang.Object

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

Field Detail

typeFactory

protected final ComponentTypeFactory typeFactory

Constructor Detail

ComponentManager

protected ComponentManager(int entityContainerSize)

Creates a new instance of ComponentManager.

Method Detail

create

protected <T extends Component> T create(Entity owner,
                             Class<T> componentClass)

getPackedComponentOwners

protected BitSet getPackedComponentOwners(ComponentType type)

dispose

protected void dispose()

Description copied from class: Manager

see World.dispose()

Overrides:

dispose in class Manager

addComponent

protected void addComponent(Entity e,
                ComponentType type,
                Component component)

Adds the component of the given type to the entity.

Only one component of given type can be associated with a entity at the same time.

Parameters:

e - the entity to add to

type - the type of component being added

component - the component to add

addComponents

protected void addComponents(Entity e,
                 ArchetypeBuilder.Archetype archetype)

removeComponent

protected void removeComponent(Entity e,
                   ComponentType type)

Removes the component of given type from the entity.

Parameters:

e - the entity to remove from

type - the type of component being removed

getComponentsByType

protected Bag<Component> getComponentsByType(ComponentType type)

Get all components from all entities for a given type.

Parameters:

type - the type of components to get

Returns:

a bag containing all components of the given type

getComponent

protected Component getComponent(Entity e,
                     ComponentType type)

Get a component of an entity.

Parameters:

e - the entity associated with the component

type - the type of component to get

Returns:

the component of given type

getComponentsFor

public Bag<Component> getComponentsFor(Entity e,
                              Bag<Component> fillBag)

Get all component associated with an entity.

Parameters:

e - the entity to get components from

fillBag - a bag to be filled with components

Returns:

the fillBag, filled with the entities components

deleted

public void deleted(Entity e)

Description copied from interface: EntityObserver

Called when an entity the observer is interested in is deleted.

Specified by:

deleted in interface EntityObserver

Overrides:

deleted in class Manager

Parameters:

e - the deleted entity

added

public void added(Entity e)

Description copied from interface: EntityObserver

Called when an entity the observer is interested in is added.

Specified by:

added in interface EntityObserver

Overrides:

added in class Manager

Parameters:

e - the added entity

clean

protected void clean()

Removes all components from entities marked for deletion.