jme3test.bullet

Class PhysicsHoverControl

java.lang.Object

com.jme3.bullet.collision.PhysicsCollisionObject

com.jme3.bullet.objects.PhysicsRigidBody

com.jme3.bullet.objects.PhysicsVehicle

jme3test.bullet.PhysicsHoverControl

All Implemented Interfaces:

PhysicsControl, PhysicsTickListener, Savable, Control, JmeCloneable, java.lang.Cloneable

public class PhysicsHoverControl
extends PhysicsVehicle
implements PhysicsControl, PhysicsTickListener, JmeCloneable

PhysicsHoverControl uses a RayCast Vehicle with "slippery wheels" to simulate a hovering tank

Field Summary

Fields

Modifier and Type	Field and Description
protected float	accelerationValue
protected boolean	enabled
protected Vector3f	HOVER_HEIGHT_LF
protected Vector3f	HOVER_HEIGHT_LF_START
protected Vector3f	HOVER_HEIGHT_LR
protected Vector3f	HOVER_HEIGHT_LR_START
protected Vector3f	HOVER_HEIGHT_RF
protected Vector3f	HOVER_HEIGHT_RF_START
protected Vector3f	HOVER_HEIGHT_RR
protected Vector3f	HOVER_HEIGHT_RR_START
protected PhysicsSpace	space
protected Spatial	spatial
protected float	steeringValue
protected Vector3f	tempVect1
protected Vector3f	tempVect2
protected Vector3f	tempVect3
protected int	xw
protected int	yw
protected int	zw

Fields inherited from class com.jme3.bullet.objects.PhysicsVehicle

physicsSpace, rayCasterId, tuning, vehicleId, wheels

Fields inherited from class com.jme3.bullet.objects.PhysicsRigidBody

joints, kinematic, mass, motionState

Fields inherited from class com.jme3.bullet.collision.PhysicsCollisionObject

COLLISION_GROUP_01, COLLISION_GROUP_02, COLLISION_GROUP_03, COLLISION_GROUP_04, COLLISION_GROUP_05, COLLISION_GROUP_06, COLLISION_GROUP_07, COLLISION_GROUP_08, COLLISION_GROUP_09, COLLISION_GROUP_10, COLLISION_GROUP_11, COLLISION_GROUP_12, COLLISION_GROUP_13, COLLISION_GROUP_14, COLLISION_GROUP_15, COLLISION_GROUP_16, COLLISION_GROUP_NONE, collisionGroup, collisionGroupsMask, collisionShape, objectId

Constructor Summary

Constructors

Constructor and Description
PhysicsHoverControl()
PhysicsHoverControl(CollisionShape shape) Creates a new PhysicsNode with the supplied collision shape
PhysicsHoverControl(CollisionShape shape, float mass)

Method Summary

Modifier and Type	Method and Description
void	accelerate(float accelerationValue) Apply the specified engine force to all wheels.
void	cloneFields(Cloner cloner, java.lang.Object original) Implemented to perform deep cloning for this object, resolving local cloned references using the specified cloner.
Control	cloneForSpatial(Spatial spatial) Deprecated.
PhysicsSpace	getPhysicsSpace() Access the physics space to which the object is (or would be) added.
boolean	isEnabled() Test whether this control is enabled.
java.lang.Object	jmeClone() Performs a regular shallow clone of the object.
void	physicsTick(PhysicsSpace space, float f) Callback from Bullet, invoked just after the physics has been stepped, use to check for forces etc.
void	prePhysicsTick(PhysicsSpace space, float f) Callback from Bullet, invoked just before the physics is stepped.
void	read(JmeImporter im) De-serialize this vehicle, for example when loading from a J3O file.
void	render(RenderManager rm, ViewPort vp) Should be called prior to queuing the spatial by the RenderManager.
void	setEnabled(boolean enabled) Enable or disable this control.
void	setPhysicsSpace(PhysicsSpace space) If enabled, add this control's physics object to the specified physics space.
void	setSpatial(Spatial spatial)
void	steer(float steeringValue) Alter the steering angle of all front wheels.
void	update(float tpf) Updates the control.
void	write(JmeExporter ex) Serialize this vehicle, for example when saving to a J3O file.

Methods inherited from class com.jme3.bullet.objects.PhysicsVehicle

accelerate, addWheel, addWheel, applyWheelTransforms, brake, brake, createVehicle, finalize, getCurrentVehicleSpeedKmHour, getForwardVector, getFrictionSlip, getMaxSuspensionForce, getMaxSuspensionTravelCm, getNumWheels, getSuspensionCompression, getSuspensionDamping, getSuspensionStiffness, getVehicleId, getWheel, postRebuild, removeWheel, resetSuspension, setFrictionSlip, setFrictionSlip, setMaxSuspensionForce, setMaxSuspensionForce, setMaxSuspensionTravelCm, setMaxSuspensionTravelCm, setRollInfluence, setSuspensionCompression, setSuspensionCompression, setSuspensionDamping, setSuspensionDamping, setSuspensionStiffness, setSuspensionStiffness, steer, updateWheels

Methods inherited from class com.jme3.bullet.objects.PhysicsRigidBody

activate, addJoint, applyCentralForce, applyForce, applyImpulse, applyTorque, applyTorqueImpulse, clearForces, getAngularDamping, getAngularFactor, getAngularFactor, getAngularSleepingThreshold, getAngularVelocity, getAngularVelocity, getCcdMotionThreshold, getCcdSquareMotionThreshold, getCcdSweptSphereRadius, getFriction, getGravity, getGravity, getInverseInertiaLocal, getJoints, getLinearDamping, getLinearFactor, getLinearSleepingThreshold, getLinearVelocity, getLinearVelocity, getMass, getMotionState, getPhysicsLocation, getPhysicsLocation, getPhysicsRotation, getPhysicsRotation, getPhysicsRotationMatrix, getPhysicsRotationMatrix, getRestitution, isActive, isInWorld, isKinematic, preRebuild, rebuildRigidBody, removeJoint, setAngularDamping, setAngularFactor, setAngularFactor, setAngularSleepingThreshold, setAngularVelocity, setCcdMotionThreshold, setCcdSweptSphereRadius, setCollisionShape, setContactResponse, setDamping, setFriction, setGravity, setInverseInertiaLocal, setKinematic, setLinearDamping, setLinearFactor, setLinearSleepingThreshold, setLinearVelocity, setMass, setPhysicsLocation, setPhysicsRotation, setPhysicsRotation, setRestitution, setSleepingThresholds

Methods inherited from class com.jme3.bullet.collision.PhysicsCollisionObject

addCollideWithGroup, attachCollisionShape, finalizeNative, getCollideWithGroups, getCollisionFlags, getCollisionGroup, getCollisionShape, getDeactivationTime, getObjectId, getUserObject, initUserPointer, isContactResponse, removeCollideWithGroup, setCollideWithGroups, setCollisionFlags, setCollisionGroup, setUserObject

Methods inherited from class java.lang.Object

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

Field Detail

spatial

protected Spatial spatial

enabled

protected boolean enabled

space

protected PhysicsSpace space

steeringValue

protected float steeringValue

accelerationValue

protected float accelerationValue

xw

protected int xw

zw

protected int zw

yw

protected int yw

HOVER_HEIGHT_LF_START

protected Vector3f HOVER_HEIGHT_LF_START

HOVER_HEIGHT_RF_START

protected Vector3f HOVER_HEIGHT_RF_START

HOVER_HEIGHT_LR_START

protected Vector3f HOVER_HEIGHT_LR_START

HOVER_HEIGHT_RR_START

protected Vector3f HOVER_HEIGHT_RR_START

HOVER_HEIGHT_LF

protected Vector3f HOVER_HEIGHT_LF

HOVER_HEIGHT_RF

protected Vector3f HOVER_HEIGHT_RF

HOVER_HEIGHT_LR

protected Vector3f HOVER_HEIGHT_LR

HOVER_HEIGHT_RR

protected Vector3f HOVER_HEIGHT_RR

tempVect1

protected Vector3f tempVect1

tempVect2

protected Vector3f tempVect2

tempVect3

protected Vector3f tempVect3

Constructor Detail

PhysicsHoverControl

public PhysicsHoverControl()

PhysicsHoverControl

public PhysicsHoverControl(CollisionShape shape)

Creates a new PhysicsNode with the supplied collision shape

Parameters:

shape -

PhysicsHoverControl

public PhysicsHoverControl(CollisionShape shape,
                           float mass)

Method Detail

cloneForSpatial

@Deprecated
public Control cloneForSpatial(Spatial spatial)

Deprecated.

Description copied from interface: Control

Creates a clone of the Control, the given Spatial is the cloned version of the spatial to which this control is attached to.

Specified by:

cloneForSpatial in interface Control

Returns:

A clone of this control for the spatial

jmeClone

public java.lang.Object jmeClone()

Description copied from interface: JmeCloneable

Performs a regular shallow clone of the object. Some fields may also be cloned but generally only if they will never be shared with other objects. (For example, local Vector3fs and so on.)

This method is separate from the regular clone() method so that objects might still maintain their own regular java clone() semantics (perhaps even using Cloner for those methods). However, because Java's clone() has specific features in the sense of Object's clone() implementation, it's usually best to have some path for subclasses to bypass the public clone() method that might be cloning fields and instead get at the superclass protected clone() methods. For example, through super.jmeClone() or another protected clone method that some base class eventually calls super.clone() in.

Specified by:

jmeClone in interface JmeCloneable

cloneFields

public void cloneFields(Cloner cloner,
                        java.lang.Object original)

Description copied from interface: JmeCloneable

Implemented to perform deep cloning for this object, resolving local cloned references using the specified cloner. The object can call cloner.clone(fieldValue) to deep clone any of its fields.

Note: during normal clone operations the original object will not be needed as the clone has already had all of the fields shallow copied.

Specified by:

cloneFields in interface JmeCloneable

Parameters:

cloner - The cloner that is performing the cloning operation. The cloneFields method can call back into the cloner to make clones of its subordinate fields.

original - The original object from which this object was cloned. This is provided for the very rare case that this object needs to refer to its original for some reason. In general, all of the relevant values should have been transferred during the shallow clone and this object need merely clone what it wants.

setSpatial

public void setSpatial(Spatial spatial)

Specified by:

setSpatial in interface Control

Parameters:

spatial - the spatial to be controlled. This should not be called from user code.

setEnabled

public void setEnabled(boolean enabled)

Description copied from interface: PhysicsControl

Enable or disable this control.

The physics object is removed from its physics space when the control is disabled. When the control is enabled again, the physics object is moved to the current location of the spatial and then added to the physics space.

Specified by:

setEnabled in interface PhysicsControl

Parameters:

enabled - true→enable the control, false→disable it

isEnabled

public boolean isEnabled()

Description copied from interface: PhysicsControl

Test whether this control is enabled.

Specified by:

isEnabled in interface PhysicsControl

Returns:

true if enabled, otherwise false

prePhysicsTick

public void prePhysicsTick(PhysicsSpace space,
                           float f)

Description copied from interface: PhysicsTickListener

Callback from Bullet, invoked just before the physics is stepped. A good time to clear/apply forces.

Specified by:

prePhysicsTick in interface PhysicsTickListener

Parameters:

space - the space that is about to be stepped (not null)

f - the time per physics step (in seconds, ≥0)

physicsTick

public void physicsTick(PhysicsSpace space,
                        float f)

Description copied from interface: PhysicsTickListener

Callback from Bullet, invoked just after the physics has been stepped, use to check for forces etc.

Specified by:

physicsTick in interface PhysicsTickListener

Parameters:

space - the space that was just stepped (not null)

f - the time per physics step (in seconds, ≥0)

update

public void update(float tpf)

Description copied from interface: Control

Updates the control. This should not be called from user code.

Specified by:

update in interface Control

Parameters:

tpf - Time per frame.

render

public void render(RenderManager rm,
                   ViewPort vp)

Description copied from interface: Control

Should be called prior to queuing the spatial by the RenderManager. This should not be called from user code.

Specified by:

render in interface Control

setPhysicsSpace

public void setPhysicsSpace(PhysicsSpace space)

Description copied from interface: PhysicsControl

If enabled, add this control's physics object to the specified physics space. In not enabled, alter where the object would be added. The object is removed from any other space it's currently in.

Specified by:

setPhysicsSpace in interface PhysicsControl

Parameters:

space - where to add, or null to simply remove

getPhysicsSpace

public PhysicsSpace getPhysicsSpace()

Description copied from interface: PhysicsControl

Access the physics space to which the object is (or would be) added.

Specified by:

getPhysicsSpace in interface PhysicsControl

Returns:

the pre-existing space, or null for none

write

public void write(JmeExporter ex)
           throws java.io.IOException

Description copied from class: PhysicsVehicle

Serialize this vehicle, for example when saving to a J3O file.

Specified by:

write in interface Savable

Overrides:

write in class PhysicsVehicle

Parameters:

ex - exporter (not null)

Throws:

java.io.IOException - from exporter

read

public void read(JmeImporter im)
          throws java.io.IOException

Description copied from class: PhysicsVehicle

De-serialize this vehicle, for example when loading from a J3O file.

Specified by:

read in interface Savable

Overrides:

read in class PhysicsVehicle

Parameters:

im - importer (not null)

Throws:

java.io.IOException - from importer

steer

public void steer(float steeringValue)

Description copied from class: PhysicsVehicle

Alter the steering angle of all front wheels.

Overrides:

steer in class PhysicsVehicle

Parameters:

steeringValue - the steeringValue to set

accelerate

public void accelerate(float accelerationValue)

Description copied from class: PhysicsVehicle

Apply the specified engine force to all wheels. Works continuously.

Overrides:

accelerate in class PhysicsVehicle

Parameters:

accelerationValue - the accelerationValue to set