aboutsummaryrefslogtreecommitdiff
path: root/src/libjin/3rdparty/Box2D/Dynamics/Joints/b2MouseJoint.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/libjin/3rdparty/Box2D/Dynamics/Joints/b2MouseJoint.h')
-rw-r--r--src/libjin/3rdparty/Box2D/Dynamics/Joints/b2MouseJoint.h129
1 files changed, 0 insertions, 129 deletions
diff --git a/src/libjin/3rdparty/Box2D/Dynamics/Joints/b2MouseJoint.h b/src/libjin/3rdparty/Box2D/Dynamics/Joints/b2MouseJoint.h
deleted file mode 100644
index 7441978..0000000
--- a/src/libjin/3rdparty/Box2D/Dynamics/Joints/b2MouseJoint.h
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
-* Copyright (c) 2006-2007 Erin Catto http://www.box2d.org
-*
-* This software is provided 'as-is', without any express or implied
-* warranty. In no event will the authors be held liable for any damages
-* arising from the use of this software.
-* Permission is granted to anyone to use this software for any purpose,
-* including commercial applications, and to alter it and redistribute it
-* freely, subject to the following restrictions:
-* 1. The origin of this software must not be misrepresented; you must not
-* claim that you wrote the original software. If you use this software
-* in a product, an acknowledgment in the product documentation would be
-* appreciated but is not required.
-* 2. Altered source versions must be plainly marked as such, and must not be
-* misrepresented as being the original software.
-* 3. This notice may not be removed or altered from any source distribution.
-*/
-
-#ifndef B2_MOUSE_JOINT_H
-#define B2_MOUSE_JOINT_H
-
-#include "Box2D/Dynamics/Joints/b2Joint.h"
-
-/// Mouse joint definition. This requires a world target point,
-/// tuning parameters, and the time step.
-struct b2MouseJointDef : public b2JointDef
-{
- b2MouseJointDef()
- {
- type = e_mouseJoint;
- target.Set(0.0f, 0.0f);
- maxForce = 0.0f;
- frequencyHz = 5.0f;
- dampingRatio = 0.7f;
- }
-
- /// The initial world target point. This is assumed
- /// to coincide with the body anchor initially.
- b2Vec2 target;
-
- /// The maximum constraint force that can be exerted
- /// to move the candidate body. Usually you will express
- /// as some multiple of the weight (multiplier * mass * gravity).
- float32 maxForce;
-
- /// The response speed.
- float32 frequencyHz;
-
- /// The damping ratio. 0 = no damping, 1 = critical damping.
- float32 dampingRatio;
-};
-
-/// A mouse joint is used to make a point on a body track a
-/// specified world point. This a soft constraint with a maximum
-/// force. This allows the constraint to stretch and without
-/// applying huge forces.
-/// NOTE: this joint is not documented in the manual because it was
-/// developed to be used in the testbed. If you want to learn how to
-/// use the mouse joint, look at the testbed.
-class b2MouseJoint : public b2Joint
-{
-public:
-
- /// Implements b2Joint.
- b2Vec2 GetAnchorA() const override;
-
- /// Implements b2Joint.
- b2Vec2 GetAnchorB() const override;
-
- /// Implements b2Joint.
- b2Vec2 GetReactionForce(float32 inv_dt) const override;
-
- /// Implements b2Joint.
- float32 GetReactionTorque(float32 inv_dt) const override;
-
- /// Use this to update the target point.
- void SetTarget(const b2Vec2& target);
- const b2Vec2& GetTarget() const;
-
- /// Set/get the maximum force in Newtons.
- void SetMaxForce(float32 force);
- float32 GetMaxForce() const;
-
- /// Set/get the frequency in Hertz.
- void SetFrequency(float32 hz);
- float32 GetFrequency() const;
-
- /// Set/get the damping ratio (dimensionless).
- void SetDampingRatio(float32 ratio);
- float32 GetDampingRatio() const;
-
- /// The mouse joint does not support dumping.
- void Dump() override { b2Log("Mouse joint dumping is not supported.\n"); }
-
- /// Implement b2Joint::ShiftOrigin
- void ShiftOrigin(const b2Vec2& newOrigin) override;
-
-protected:
- friend class b2Joint;
-
- b2MouseJoint(const b2MouseJointDef* def);
-
- void InitVelocityConstraints(const b2SolverData& data) override;
- void SolveVelocityConstraints(const b2SolverData& data) override;
- bool SolvePositionConstraints(const b2SolverData& data) override;
-
- b2Vec2 m_localAnchorB;
- b2Vec2 m_targetA;
- float32 m_frequencyHz;
- float32 m_dampingRatio;
- float32 m_beta;
-
- // Solver shared
- b2Vec2 m_impulse;
- float32 m_maxForce;
- float32 m_gamma;
-
- // Solver temp
- int32 m_indexA;
- int32 m_indexB;
- b2Vec2 m_rB;
- b2Vec2 m_localCenterB;
- float32 m_invMassB;
- float32 m_invIB;
- b2Mat22 m_mass;
- b2Vec2 m_C;
-};
-
-#endif