com.jme3.bullet.objects.infos

Class VehicleTuning

java.lang.Object

com.jme3.bullet.NativePhysicsObject

com.jme3.bullet.objects.infos.VehicleTuning

All Implemented Interfaces:

java.lang.Comparable<NativePhysicsObject>

public class VehicleTuning
extends NativePhysicsObject

Tuning parameters for a PhysicsVehicle, based on Bullet's btVehicleTuning.

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.logging.Logger	logger message logger for this class

Fields inherited from class com.jme3.bullet.NativePhysicsObject

loggerN

Constructor Summary

Constructors

Constructor and Description
VehicleTuning() Instantiate an instance with the default parameter values.

Method Summary

Modifier and Type	Method and Description
float	getFrictionSlip() Read the friction between tires and ground (native field: m_frictionSlip).
float	getMaxSuspensionForce() Read the maximum force exerted by each wheel's suspension (native field: m_maxSuspensionForce).
float	getMaxSuspensionTravelCm() Determine the maximum travel distance for each wheel's suspension (native field: m_maxSuspensionTravelCm).
float	getSuspensionCompression() Read the suspension damping when compressed (native field: m_suspensionCompression).
float	getSuspensionDamping() Read the suspension damping when expanded (native field: m_suspensionDamping).
float	getSuspensionStiffness() Read the suspension stiffness (native field: m_suspensionStiffness).
void	setFrictionSlip(float coeff) Alter the friction between tires and ground (native field: m_frictionSlip).
void	setMaxSuspensionForce(float maxForce) Alter the force exerted by each wheel's suspension (native field: m_maxSuspensionForce).
void	setMaxSuspensionTravelCm(float travelCm) Alter the maximum travel distance for the suspension (native field: m_maxSuspensionTravelCm).
void	setSuspensionCompression(float damping) Alter the suspension damping when compressed (native field: m_suspensionCompression).
void	setSuspensionDamping(float damping) Alter the suspension damping when expanded (native field: m_suspensionDamping).
void	setSuspensionStiffness(float stiffness) Alter the stiffness of the suspension (native field: m_suspensionStiffness).

Methods inherited from class com.jme3.bullet.NativePhysicsObject

compareTo, countTrackers, dumpTrackers, equals, freeUnusedObjects, hasAssignedNativeObject, hashCode, nativeId, reassignNativeId, setNativeId, setNativeIdNotTracked, toString, unassignNativeObject

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

logger

public static final java.util.logging.Logger logger

message logger for this class

Constructor Detail

VehicleTuning

public VehicleTuning()

Instantiate an instance with the default parameter values.

Method Detail

getFrictionSlip

public float getFrictionSlip()

Read the friction between tires and ground (native field: m_frictionSlip).

Returns:

the coefficient of friction

getMaxSuspensionForce

public float getMaxSuspensionForce()

Read the maximum force exerted by each wheel's suspension (native field: m_maxSuspensionForce).

Returns:

the maximum force

getMaxSuspensionTravelCm

public float getMaxSuspensionTravelCm()

Determine the maximum travel distance for each wheel's suspension (native field: m_maxSuspensionTravelCm). Note that the units are centimeters ONLY if the physics-space unit is exactly one meter.

Returns:

the maximum amount the suspension can be compressed or expanded, relative to its rest length (in hundredths of a physics-space unit)

getSuspensionCompression

public float getSuspensionCompression()

Read the suspension damping when compressed (native field: m_suspensionCompression).

Returns:

the damping amount

getSuspensionDamping

public float getSuspensionDamping()

Read the suspension damping when expanded (native field: m_suspensionDamping).

Returns:

the damping amount (0→no damping, default=0.88)

getSuspensionStiffness

public float getSuspensionStiffness()

Read the suspension stiffness (native field: m_suspensionStiffness).

Returns:

the stiffness constant

setFrictionSlip

public void setFrictionSlip(float coeff)

Alter the friction between tires and ground (native field: m_frictionSlip).

Parameters:

coeff - the desired coefficient of friction (0.8→realistic car, 10000→kart racer, default=10.5)

setMaxSuspensionForce

public void setMaxSuspensionForce(float maxForce)

Alter the force exerted by each wheel's suspension (native field: m_maxSuspensionForce).

Parameters:

maxForce - the desired maximum force (default=6000)

setMaxSuspensionTravelCm

public void setMaxSuspensionTravelCm(float travelCm)

Alter the maximum travel distance for the suspension (native field: m_maxSuspensionTravelCm). Note that the units are centimeters ONLY if the physics-space unit is exactly one meter.

Parameters:

travelCm - the desired maximum amount the suspension can be compressed or expanded, relative to its rest length (in hundredths of a physics-space unit, default=500)

setSuspensionCompression

public void setSuspensionCompression(float damping)

Alter the suspension damping when compressed (native field: m_suspensionCompression).

Parameters:

damping - the desired damping amount (0→no damping, default=0.83)

setSuspensionDamping

public void setSuspensionDamping(float damping)

Alter the suspension damping when expanded (native field: m_suspensionDamping).

Parameters:

damping - the desired damping (0→no damping, default=0.88)

setSuspensionStiffness

public void setSuspensionStiffness(float stiffness)

Alter the stiffness of the suspension (native field: m_suspensionStiffness).

Parameters:

stiffness - the desired stiffness constant (10→off-road buggy, 50→sports car, 200→Formula-1 race car, default=5.88)