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LiquidFun
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LiquidFun
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#include <b2DistanceJoint.h>
Inherits b2Joint.
Public Member Functions | |
| 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 |
| float32 | GetReactionTorque (float32 inv_dt) const |
| 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. | |
| void | SetLength (float32 length) |
| float32 | GetLength () const |
| void | SetFrequency (float32 hz) |
| Set/get frequency in Hz. | |
| float32 | GetFrequency () const |
| void | SetDampingRatio (float32 ratio) |
| Set/get damping ratio. | |
| float32 | GetDampingRatio () const |
| void | Dump () |
| Dump joint to dmLog. | |
 Public Member Functions inherited from b2Joint | |
| b2JointType | GetType () const |
| Get the type of the concrete joint. | |
| b2Body * | GetBodyA () |
| Get the first body attached to this joint. | |
| b2Body * | GetBodyB () |
| Get the second body attached to this joint. | |
| b2Joint * | GetNext () |
| Get the next joint the world joint list. | |
| const b2Joint * | GetNext () const |
| void * | GetUserData () const |
| Get the user data pointer. | |
| void | SetUserData (void *data) |
| Set the user data pointer. | |
| bool | IsActive () const |
| Short-cut function to determine if either body is inactive. | |
| bool | GetCollideConnected () const |
| virtual void | ShiftOrigin (const b2Vec2 &newOrigin) |
| Shift the origin for any points stored in world coordinates. | |
Protected Member Functions | |
| b2DistanceJoint (const b2DistanceJointDef *data) | |
| void | InitVelocityConstraints (const b2SolverData &data) |
| void | SolveVelocityConstraints (const b2SolverData &data) |
| bool | SolvePositionConstraints (const b2SolverData &data) |
| Protected Member Functions inherited from b2Joint | |
| b2Joint (const b2JointDef *def) | |
Protected Attributes | |
| float32 | m_frequencyHz |
| float32 | m_dampingRatio |
| float32 | m_bias |
| b2Vec2 | m_localAnchorA |
| b2Vec2 | m_localAnchorB |
| float32 | m_gamma |
| float32 | m_impulse |
| float32 | m_length |
| int32 | m_indexA |
| int32 | m_indexB |
| b2Vec2 | m_u |
| b2Vec2 | m_rA |
| b2Vec2 | m_rB |
| b2Vec2 | m_localCenterA |
| b2Vec2 | m_localCenterB |
| float32 | m_invMassA |
| float32 | m_invMassB |
| float32 | m_invIA |
| float32 | m_invIB |
| float32 | m_mass |
| Protected Attributes inherited from b2Joint | |
| b2JointType | m_type |
| b2Joint * | m_prev |
| b2Joint * | m_next |
| b2JointEdge | m_edgeA |
| b2JointEdge | m_edgeB |
| b2Body * | m_bodyA |
| b2Body * | m_bodyB |
| int32 | m_index |
| bool | m_islandFlag |
| bool | m_collideConnected |
| void * | m_userData |
Friends | |
| class | b2Joint |
Additional Inherited Members | |
| Static Protected Member Functions inherited from b2Joint | |
| static b2Joint * | Create (const b2JointDef *def, b2BlockAllocator *allocator) |
| static void | Destroy (b2Joint *joint, b2BlockAllocator *allocator) |
A distance joint constrains two points on two bodies to remain at a fixed distance from each other. You can view this as a massless, rigid rod.
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virtual |
Get the reaction force given the inverse time step. Unit is N.
Implements b2Joint.
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virtual |
Get the reaction torque given the inverse time step. Unit is N*m. This is always zero for a distance joint.
Implements b2Joint.
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inline |
Set/get the natural length. Manipulating the length can lead to non-physical behavior when the frequency is zero.
