|
Box2D
2.2.1
Box2D API Reference for Kobold2D developers
|
#include <b2WheelJoint.h>
Inheritance diagram for b2WheelJoint: Collaboration diagram for b2WheelJoint:Public Member Functions | |
| void | GetDefinition (b2WheelJointDef *def) const |
| b2Vec2 | GetAnchorA () const |
| Get the anchor point on bodyA in world coordinates. | |
| b2Vec2 | GetAnchorB () const |
| Get the anchor point on bodyB in world coordinates. | |
| b2Vec2 | GetReactionForce (float32 inv_dt) const |
| Get the reaction force on bodyB at the joint anchor in Newtons. | |
| float32 | GetReactionTorque (float32 inv_dt) const |
| Get the reaction torque on bodyB in N*m. | |
| const b2Vec2 & | GetLocalAnchorA () const |
| The local anchor point relative to bodyA's origin. | |
| const b2Vec2 & | GetLocalAnchorB () const |
| The local anchor point relative to bodyB's origin. | |
| const b2Vec2 & | GetLocalAxisA () const |
| The local joint axis relative to bodyA. | |
| float32 | GetJointTranslation () const |
| Get the current joint translation, usually in meters. | |
| float32 | GetJointSpeed () const |
| Get the current joint translation speed, usually in meters per second. | |
| bool | IsMotorEnabled () const |
| Is the joint motor enabled? | |
| void | EnableMotor (bool flag) |
| Enable/disable the joint motor. | |
| void | SetMotorSpeed (float32 speed) |
| Set the motor speed, usually in radians per second. | |
| float32 | GetMotorSpeed () const |
| Get the motor speed, usually in radians per second. | |
| void | SetMaxMotorTorque (float32 torque) |
| Set/Get the maximum motor force, usually in N-m. | |
| float32 | GetMaxMotorTorque () const |
| float32 | GetMotorTorque (float32 inv_dt) const |
| Get the current motor torque given the inverse time step, usually in N-m. | |
| void | SetSpringFrequencyHz (float32 hz) |
| Set/Get the spring frequency in hertz. Setting the frequency to zero disables the spring. | |
| float32 | GetSpringFrequencyHz () const |
| void | SetSpringDampingRatio (float32 ratio) |
| Set/Get the spring damping ratio. | |
| float32 | GetSpringDampingRatio () const |
| void | Dump () |
| Dump to b2Log. | |
Protected Member Functions | |
| b2WheelJoint (const b2WheelJointDef *def) | |
| void | InitVelocityConstraints (const b2SolverData &data) |
| void | SolveVelocityConstraints (const b2SolverData &data) |
| bool | SolvePositionConstraints (const b2SolverData &data) |
Protected Attributes | |
| float32 | m_frequencyHz |
| float32 | m_dampingRatio |
| b2Vec2 | m_localAnchorA |
| b2Vec2 | m_localAnchorB |
| b2Vec2 | m_localXAxisA |
| b2Vec2 | m_localYAxisA |
| float32 | m_impulse |
| float32 | m_motorImpulse |
| float32 | m_springImpulse |
| float32 | m_maxMotorTorque |
| float32 | m_motorSpeed |
| bool | m_enableMotor |
| int32 | m_indexA |
| int32 | m_indexB |
| b2Vec2 | m_localCenterA |
| b2Vec2 | m_localCenterB |
| float32 | m_invMassA |
| float32 | m_invMassB |
| float32 | m_invIA |
| float32 | m_invIB |
| b2Vec2 | m_ax |
| b2Vec2 | m_ay |
| float32 | m_sAx |
| float32 | m_sBx |
| float32 | m_sAy |
| float32 | m_sBy |
| float32 | m_mass |
| float32 | m_motorMass |
| float32 | m_springMass |
| float32 | m_bias |
| float32 | m_gamma |
Friends | |
| class | b2Joint |
A wheel joint. This joint provides two degrees of freedom: translation along an axis fixed in bodyA and rotation in the plane. You can use a joint limit to restrict the range of motion and a joint motor to drive the rotation or to model rotational friction. This joint is designed for vehicle suspensions.
| void b2WheelJoint::Dump | ( | ) | [virtual] |
Dump to b2Log.
Reimplemented from b2Joint.
| void b2WheelJoint::EnableMotor | ( | bool | flag | ) |
Enable/disable the joint motor.
| b2Vec2 b2WheelJoint::GetAnchorA | ( | ) | const [virtual] |
Get the anchor point on bodyA in world coordinates.
Implements b2Joint.
| b2Vec2 b2WheelJoint::GetAnchorB | ( | ) | const [virtual] |
Get the anchor point on bodyB in world coordinates.
Implements b2Joint.
| float32 b2WheelJoint::GetJointSpeed | ( | ) | const |
Get the current joint translation speed, usually in meters per second.
| float32 b2WheelJoint::GetJointTranslation | ( | ) | const |
Get the current joint translation, usually in meters.
| const b2Vec2& b2WheelJoint::GetLocalAnchorA | ( | ) | const [inline] |
The local anchor point relative to bodyA's origin.
| const b2Vec2& b2WheelJoint::GetLocalAnchorB | ( | ) | const [inline] |
The local anchor point relative to bodyB's origin.
| const b2Vec2& b2WheelJoint::GetLocalAxisA | ( | ) | const [inline] |
The local joint axis relative to bodyA.
| float32 b2WheelJoint::GetMotorSpeed | ( | ) | const [inline] |
Get the motor speed, usually in radians per second.
| float32 b2WheelJoint::GetMotorTorque | ( | float32 | inv_dt | ) | const |
Get the current motor torque given the inverse time step, usually in N-m.
| b2Vec2 b2WheelJoint::GetReactionForce | ( | float32 | inv_dt | ) | const [virtual] |
Get the reaction force on bodyB at the joint anchor in Newtons.
Implements b2Joint.
| float32 b2WheelJoint::GetReactionTorque | ( | float32 | inv_dt | ) | const [virtual] |
Get the reaction torque on bodyB in N*m.
Implements b2Joint.
| bool b2WheelJoint::IsMotorEnabled | ( | ) | const |
Is the joint motor enabled?
| void b2WheelJoint::SetMaxMotorTorque | ( | float32 | torque | ) |
Set/Get the maximum motor force, usually in N-m.
| void b2WheelJoint::SetMotorSpeed | ( | float32 | speed | ) |
Set the motor speed, usually in radians per second.
| void b2WheelJoint::SetSpringDampingRatio | ( | float32 | ratio | ) | [inline] |
Set/Get the spring damping ratio.
| void b2WheelJoint::SetSpringFrequencyHz | ( | float32 | hz | ) | [inline] |
Set/Get the spring frequency in hertz. Setting the frequency to zero disables the spring.
1.7.5 
