com.artemis.systems

Class IntervalEntitySystem

java.lang.Object

com.artemis.BaseSystem

com.artemis.BaseEntitySystem

com.artemis.EntitySystem

com.artemis.systems.IntervalEntitySystem

All Implemented Interfaces:

EntitySubscription.SubscriptionListener

Direct Known Subclasses:

IntervalEntityProcessingSystem

public abstract class IntervalEntitySystem
extends EntitySystem

A system that processes entities at a interval in milliseconds.

A typical usage would be a collision system or physics system.

Author:

Arni Arent

Field Summary

Fields

Modifier and Type	Field and Description
protected float	acc Accumulated delta to keep track of interval.

Fields inherited from class com.artemis.BaseEntitySystem

subscription

Fields inherited from class com.artemis.BaseSystem

world

Constructor Summary

Constructors

Constructor and Description
IntervalEntitySystem(Aspect.Builder aspect, float interval) Creates a new IntervalEntitySystem.
IntervalEntitySystem(float interval)

Method Summary

Modifier and Type	Method and Description
protected boolean	checkProcessing() Does the system desire processing.
protected float	getIntervalDelta() Gets the actual delta since this system was last processed.
protected float	getTimeDelta()

Methods inherited from class com.artemis.EntitySystem

getEntities, inserted, inserted, inserted, removed, removed, removed, setWorld

Methods inherited from class com.artemis.BaseEntitySystem

getEntityIds, getSubscription

Methods inherited from class com.artemis.BaseSystem

begin, dispose, end, getWorld, initialize, isEnabled, process, processSystem, setEnabled

Methods inherited from class java.lang.Object

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

Field Detail

acc

protected float acc

Accumulated delta to keep track of interval.

Constructor Detail

IntervalEntitySystem

public IntervalEntitySystem(Aspect.Builder aspect,
                            float interval)

Creates a new IntervalEntitySystem.

Parameters:

aspect - the aspect to match entities

interval - the interval at which the system processes

IntervalEntitySystem

public IntervalEntitySystem(float interval)

Method Detail

checkProcessing

protected boolean checkProcessing()

Description copied from class: BaseSystem

Does the system desire processing. Useful when the system is enabled, but only occasionally needs to process. This only affects processing, and does not affect events or subscription lists.

Overrides:

checkProcessing in class BaseSystem

Returns:

true if the system should be processed, false if not.

See Also:

both must be true before the system will process.

getIntervalDelta

protected float getIntervalDelta()

Gets the actual delta since this system was last processed.

Returns:

Time passed since last process round.

getTimeDelta

protected float getTimeDelta()