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Box2D
2.4.1
A 2D physics engine for games
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23 #ifndef B2_MOUSE_JOINT_H
24 #define B2_MOUSE_JOINT_H
36 target.Set(0.0f, 0.0f);
83 const b2Vec2& GetTarget()
const;
87 float GetMaxForce()
const;
91 float GetStiffness()
const {
return m_stiffness; }
95 float GetDamping()
const {
return m_damping; }
98 void Dump()
override {
b2Log(
"Mouse joint dumping is not supported.\n"); }
108 void InitVelocityConstraints(
const b2SolverData& data)
override;
109 void SolveVelocityConstraints(
const b2SolverData& data)
override;
110 bool SolvePositionConstraints(
const b2SolverData& data)
override;
A 2D column vector.
Definition: b2_math.h:42
b2Vec2 GetAnchorB() const override
Implements b2Joint.
void ShiftOrigin(const b2Vec2 &newOrigin) override
Implement b2Joint::ShiftOrigin.
void b2Log(const char *string,...)
Implement this to use your own logging.
Definition: b2_settings.h:115
Joint definitions are used to construct joints.
Definition: b2_joint.h:73
b2Vec2 target
Definition: b2_mouse_joint.h:44
void SetStiffness(float stiffness)
Set/get the linear stiffness in N/m.
Definition: b2_mouse_joint.h:90
void SetTarget(const b2Vec2 &target)
Use this to update the target point.
void SetMaxForce(float force)
Set/get the maximum force in Newtons.
void SetDamping(float damping)
Set/get linear damping in N*s/m.
Definition: b2_mouse_joint.h:94
void Dump() override
The mouse joint does not support dumping.
Definition: b2_mouse_joint.h:98
b2Vec2 GetReactionForce(float inv_dt) const override
Implements b2Joint.
float GetReactionTorque(float inv_dt) const override
Implements b2Joint.
A 2-by-2 matrix. Stored in column-major order.
Definition: b2_math.h:172
Solver Data.
Definition: b2_time_step.h:68
Definition: b2_mouse_joint.h:32
Definition: b2_mouse_joint.h:66
float maxForce
Definition: b2_mouse_joint.h:49
Definition: b2_joint.h:111
float damping
The linear damping in N*s/m.
Definition: b2_mouse_joint.h:55
float stiffness
The linear stiffness in N/m.
Definition: b2_mouse_joint.h:52
b2Vec2 GetAnchorA() const override
Implements b2Joint.