com.jme.effects
Class Particle

java.lang.Object
  com.jme.effects.Particle

public class Particle

extends java.lang.Object

Particle defines a single Particle of a Particle system. Generally, you would not interact with this class directly.

Version:

$Id: Particle.java,v 1.16 2005/03/28 17:58:13 renanse Exp $

Author:

Joshua Slack

Field Summary

static int	ALIVE Particle is currently active.
static int	AVAILABLE Particle is available for spawning.
static int	DEAD Particle is dead -- not in play.

Constructor Summary

Particle(ParticleManager parent, Vector3f speed, Vector3f iLocation, float lifeSpan)
Particle constructor

Method Summary

Vector3f	getPosition()
int	getStatus()
void	recreateParticle(Vector3f speed, float lifeSpan) Reset particle conditions.
void	resetAge() Resets current age to 0
boolean	updateAndCheck(float secondsPassed) update position (using current location, speed and gravity), color (interpolating between start and end color), size (interpolating between start and end size) and current age of particle.
void	updateVerts() Update the vertices for this particle, taking size, direction of viewer and current location into account.

Methods inherited from class java.lang.Object

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

Field Detail

DEAD

public static final int DEAD

Particle is dead -- not in play.

See Also:

Constant Field Values

ALIVE

public static final int ALIVE

Particle is currently active.

See Also:

Constant Field Values

AVAILABLE

public static final int AVAILABLE

Particle is available for spawning.

See Also:

Constant Field Values

Constructor Detail

Particle

public Particle(ParticleManager parent,
                Vector3f speed,
                Vector3f iLocation,
                float lifeSpan)

Particle constructor

Parameters:

parent - ParticleManager parent of this particle

speed - initial velocity of the particle in the x,y and z directions

iLocation - initial location of the particle

lifeSpan - how long the particle should live for

Method Detail

recreateParticle

public void recreateParticle(Vector3f speed,
                             float lifeSpan)

Reset particle conditions. Besides the passed in speeds and lifespan, we also reset color and size to their starting values (as given by parent.)

Parameters:

speed - initial velocity of recreated particle

lifeSpan - the recreated particle's new lifespan

updateVerts

public void updateVerts()

Update the vertices for this particle, taking size, direction of viewer and current location into account.

updateAndCheck

public boolean updateAndCheck(float secondsPassed)

update position (using current location, speed and gravity), color (interpolating between start and end color), size (interpolating between start and end size) and current age of particle. After updating the above, updateVerts() is called. if this particle's age is greater than its lifespan, it is considered dead.

Parameters:

secondsPassed - number of seconds passed since last update.

Returns:

true if this particle is not ALIVE

resetAge

public void resetAge()

Resets current age to 0

getPosition

public Vector3f getPosition()

getStatus

public int getStatus()