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XCEngine/engine/third_party/physx/source/physxextensions/src/ExtGearJoint.h

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// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
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// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2025 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef EXT_GEAR_JOINT_H
#define EXT_GEAR_JOINT_H
#include "extensions/PxGearJoint.h"
#include "ExtJoint.h"
#include "CmUtils.h"
namespace physx
{
struct PxGearJointGeneratedValues;
namespace Ext
{
struct GearJointData : public JointData
{
const PxBase* hingeJoint0; //either PxJoint or PxArticulationJointReducedCoordinate
const PxBase* hingeJoint1; //either PxJoint or PxArticulationJointReducedCoordinate
float gearRatio;
float error;
};
typedef JointT<PxGearJoint, GearJointData, PxGearJointGeneratedValues> GearJointT;
class GearJoint : public GearJointT
{
public:
// PX_SERIALIZATION
GearJoint(PxBaseFlags baseFlags) : GearJointT(baseFlags) {}
void resolveReferences(PxDeserializationContext& context);
static GearJoint* createObject(PxU8*& address, PxDeserializationContext& context) { return createJointObject<GearJoint>(address, context); }
//~PX_SERIALIZATION
GearJoint(const PxTolerancesScale& /*scale*/, PxRigidActor* actor0, const PxTransform& localFrame0, PxRigidActor* actor1, const PxTransform& localFrame1);
// PxGearJoint
virtual bool setHinges(const PxBase* hinge0, const PxBase* hinge1) PX_OVERRIDE;
virtual void getHinges(const PxBase*& hinge0, const PxBase*& hinge1) const PX_OVERRIDE;
virtual void setGearRatio(float ratio) PX_OVERRIDE;
virtual float getGearRatio() const PX_OVERRIDE;
//~PxGearJoint
// PxConstraintConnector
virtual void* prepareData() PX_OVERRIDE
{
updateError();
return mData;
}
virtual PxConstraintSolverPrep getPrep() const PX_OVERRIDE;
//~PxConstraintConnector
private:
float mVirtualAngle0;
float mVirtualAngle1;
float mPersistentAngle0;
float mPersistentAngle1;
bool mInitDone;
void updateError();
void resetError();
};
} // namespace Ext
}
#endif