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#ifndef PX_PHYSICS_NX_ARTICULATION_LINK
#define PX_PHYSICS_NX_ARTICULATION_LINK
/** \addtogroup physics 
@{ */

#include "PxPhysXConfig.h"
#include "PxArticulationJoint.h"
#include "PxRigidBody.h"

#if !PX_DOXYGEN
namespace physx
{
#endif

	class PxArticulationBase;

/**
\brief a component of an articulation that represents a rigid body

A limited subset of the properties of PxRigidDynamic are supported. In particular, sleep properties
are attributes of the articulation rather than each individual body, damping and velocity limits
are not supported, and links may not be kinematic.

@see PxArticulation PxArticulation.createLink PxArticulationJoint PxRigidBody
*/

class PxArticulationLink : public PxRigidBody
{
public:
	/**
	\brief Deletes the articulation link.
	
	\note Only a leaf articulation link can be released
	
	Do not keep a reference to the deleted instance.

	@see PxArticulation::createLink()
	*/
	virtual		void						release() = 0;

	/**
	\brief get the articulation to which this articulation link belongs. This returns the base class. The application should
	establish which articulation implementation this actually is and upcast to that type to access non-common functionality

	\return the articulation to which this link belongs
	*/
	virtual		PxArticulationBase&			getArticulation() const = 0;

	/**
	\brief Get the joint which connects this link to its parent.
	
	\return The joint connecting the link to the parent. NULL for the root link.

	@see PxArticulationJoint
	*/
	virtual		PxArticulationJointBase*	getInboundJoint() const = 0;

	/**
	\brief Get the degree of freedom of the joint which connects this link to its parent.

	\return The degree of freeedom of the joint connecting the link to the parent. 0xffffffff for the root link.

	@see PxArticulationJoint
	*/
	virtual		PxU32						getInboundJointDof() const = 0;

	/**
	\brief Get number of child links.

	\return the number of child links

	@see getChildren()
	*/
	virtual		PxU32						getNbChildren() const = 0;

	/**
	\brief Get low-level link index 

	\return low-level index
	*/
	virtual		PxU32						getLinkIndex() const = 0;

	/**
	\brief Retrieve all the child links.

	\param[out] userBuffer The buffer to receive articulation link pointers.
	\param[in] bufferSize Size of provided user buffer.
	\return Number of articulation links written to the buffer.
	\param[in] startIndex Index of first child pointer to be retrieved

	@see getNbChildren()
	*/
	virtual		PxU32						getChildren(PxArticulationLink** userBuffer, PxU32 bufferSize, PxU32 startIndex=0) const = 0;

	virtual		const char*					getConcreteTypeName()		const		{ return "PxArticulationLink";	}

protected:
	PX_INLINE								PxArticulationLink(PxType concreteType, PxBaseFlags baseFlags) : PxRigidBody(concreteType, baseFlags) {}
	PX_INLINE								PxArticulationLink(PxBaseFlags baseFlags) : PxRigidBody(baseFlags)	{}
	virtual									~PxArticulationLink()	{}
	virtual		bool						isKindOf(const char* name)	const		{ return !::strcmp("PxArticulationLink", name) || PxRigidBody::isKindOf(name);	}
};

#if !PX_DOXYGEN
} // namespace physx
#endif

/** @} */
#endif
