Package org.jbox2d.particle

Class ParticleSystem

java.lang.Object

org.jbox2d.particle.ParticleSystem

public class ParticleSystem
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ParticleSystem.Pair	Connection between two particles.
static class	ParticleSystem.ParticleBuffer<T>
static class	ParticleSystem.Proxy	Used for detecting particle contacts
static class	ParticleSystem.Triad	Connection between three particles.

Field Summary

Fields

Modifier and Type	Field	Description
ParticleBodyContact[]	bodyContactBuffer
int	bodyContactCount
ParticleSystem.ParticleBuffer<ParticleColor>	colorBuffer
ParticleContact[]	contactBuffer
int	contactCount

Constructor Summary

Constructors

Constructor	Description
ParticleSystem(World world)

Method Summary

Modifier and Type	Method	Description
void	addContact(int a, int b)
void	computeDepthForGroup(ParticleGroup group)
float	computeParticleCollisionEnergy()
int	createParticle(ParticleDef def)
ParticleGroup	createParticleGroup(ParticleGroupDef groupDef)
void	destroyParticle(int index, boolean callDestructionListener)
void	destroyParticlesInGroup(ParticleGroup group, boolean callDestructionListener)
int	destroyParticlesInShape(Shape shape, Transform xf, boolean callDestructionListener)
ParticleColor[]	getParticleColorBuffer()
int	getParticleCount()	Get the number of particles.
float	getParticleDamping()
float	getParticleDensity()
int[]	getParticleFlagsBuffer()
float	getParticleGravityScale()
ParticleGroup[]	getParticleGroupBuffer()
int	getParticleGroupCount()
ParticleGroup[]	getParticleGroupList()
int	getParticleMaxCount()
Vec2[]	getParticlePositionBuffer()
float	getParticleRadius()
Object[]	getParticleUserDataBuffer()
Vec2[]	getParticleVelocityBuffer()
void	joinParticleGroups(ParticleGroup groupA, ParticleGroup groupB)
void	queryAABB(ParticleQueryCallback callback, AABB aabb)	Query the particle system for all particles that potentially overlap the provided AABB.
void	raycast(ParticleRaycastCallback callback, Vec2 point1, Vec2 point2)	Ray-cast the particle system for all particles in the path of the ray.
void	setParticleColorBuffer(ParticleColor[] buffer, int capacity)
void	setParticleDamping(float damping)
void	setParticleDensity(float density)
void	setParticleFlagsBuffer(int[] buffer, int capacity)
void	setParticleGravityScale(float gravityScale)
void	setParticleMaxCount(int count)
void	setParticlePositionBuffer(Vec2[] buffer, int capacity)
void	setParticleRadius(float radius)
void	setParticleUserDataBuffer(Object[] buffer, int capacity)
void	setParticleVelocityBuffer(Vec2[] buffer, int capacity)
void	solve(TimeStep step)
void	solveCollision(TimeStep step)
void	solveWall(TimeStep step)
void	updateBodyContacts()
void	updateContacts(boolean exceptZombie)

Methods inherited from class java.lang.Object

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

Field Details

colorBuffer

public ParticleSystem.ParticleBuffer<ParticleColor> colorBuffer

contactCount

public int contactCount

contactBuffer

public ParticleContact[] contactBuffer

bodyContactCount

public int bodyContactCount

bodyContactBuffer

public ParticleBodyContact[] bodyContactBuffer

Constructor Details

ParticleSystem

public ParticleSystem(World world)

Method Details

createParticle

public int createParticle(ParticleDef def)

destroyParticle

public void destroyParticle(int index,
 boolean callDestructionListener)

destroyParticlesInShape

public int destroyParticlesInShape(Shape shape,
 Transform xf,
 boolean callDestructionListener)

destroyParticlesInGroup

public void destroyParticlesInGroup(ParticleGroup group,
 boolean callDestructionListener)

createParticleGroup

public ParticleGroup createParticleGroup(ParticleGroupDef groupDef)

joinParticleGroups

public void joinParticleGroups(ParticleGroup groupA,
 ParticleGroup groupB)

computeDepthForGroup

public void computeDepthForGroup(ParticleGroup group)

addContact

public void addContact(int a,
 int b)

updateContacts

public void updateContacts(boolean exceptZombie)

updateBodyContacts

public void updateBodyContacts()

Repolink:

Github: google/liquidfun liquidfun/Box2D/Box2D/Particle/b2ParticleSystem.cpp Lines 2608 - 2708

solveCollision

public void solveCollision(TimeStep step)

Repolink:

Github: google/liquidfun liquidfun/Box2D/Box2D/Particle/b2ParticleSystem.cpp Lines 2752 - 2852

solve

public void solve(TimeStep step)

Repolink:

Github: google/liquidfun liquidfun/Box2D/Box2D/Particle/b2ParticleSystem.cpp Lines 2973 - 3095

solveWall

public void solveWall(TimeStep step)

Repolink:

Github: google/liquidfun liquidfun/Box2D/Box2D/Particle/b2ParticleSystem.cpp Lines 3506 - 3515

setParticleRadius

public void setParticleRadius(float radius)

setParticleDensity

public void setParticleDensity(float density)

getParticleDensity

public float getParticleDensity()

setParticleGravityScale

public void setParticleGravityScale(float gravityScale)

getParticleGravityScale

public float getParticleGravityScale()

setParticleDamping

public void setParticleDamping(float damping)

getParticleDamping

public float getParticleDamping()

getParticleRadius

public float getParticleRadius()

getParticleFlagsBuffer

public int[] getParticleFlagsBuffer()

getParticlePositionBuffer

public Vec2[] getParticlePositionBuffer()

getParticleVelocityBuffer

public Vec2[] getParticleVelocityBuffer()

getParticleColorBuffer

public ParticleColor[] getParticleColorBuffer()

getParticleUserDataBuffer

public Object[] getParticleUserDataBuffer()

getParticleMaxCount

public int getParticleMaxCount()

setParticleMaxCount

public void setParticleMaxCount(int count)

setParticleFlagsBuffer

public void setParticleFlagsBuffer(int[] buffer,
 int capacity)

setParticlePositionBuffer

public void setParticlePositionBuffer(Vec2[] buffer,
 int capacity)

setParticleVelocityBuffer

public void setParticleVelocityBuffer(Vec2[] buffer,
 int capacity)

setParticleColorBuffer

public void setParticleColorBuffer(ParticleColor[] buffer,
 int capacity)

getParticleGroupBuffer

public ParticleGroup[] getParticleGroupBuffer()

getParticleGroupCount

public int getParticleGroupCount()

getParticleGroupList

public ParticleGroup[] getParticleGroupList()

getParticleCount

public int getParticleCount()

Get the number of particles.

setParticleUserDataBuffer

public void setParticleUserDataBuffer(Object[] buffer,
 int capacity)

queryAABB

public void queryAABB(ParticleQueryCallback callback,
 AABB aabb)

Query the particle system for all particles that potentially overlap the provided AABB.

Parameters:

callback - A user implemented callback class.

aabb - The query box.

Repolink:

Github: google/liquidfun liquidfun/Box2D/Box2D/Particle/b2ParticleSystem.h Lines 668 - 673

raycast

public void raycast(ParticleRaycastCallback callback,
 Vec2 point1,
 Vec2 point2)

Ray-cast the particle system for all particles in the path of the ray. Your callback controls whether you get the closest point, any point, or n-points. The ray-cast ignores particles that contain the starting point.

Parameters:

callback - A user implemented callback class.

point1 - The ray starting point.

point2 - The ray ending point.

Repolink:

Github: google/liquidfun liquidfun/Box2D/Box2D/Particle/b2ParticleSystem.h Lines 684 - 692

computeParticleCollisionEnergy

public float computeParticleCollisionEnergy()