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/**
* @file lljoint.h
* @brief Implementation of LLJoint class.
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLJOINT_H
#define LL_LLJOINT_H
//-----------------------------------------------------------------------------
// Header Files
//-----------------------------------------------------------------------------
#include <string>
#include <list>
#include "linked_lists.h"
#include "v3math.h"
#include "v4math.h"
#include "m4math.h"
#include "llquaternion.h"
#include "xform.h"
#include "lldarray.h"
const S32 LL_CHARACTER_MAX_JOINTS_PER_MESH = 15;
const U32 LL_CHARACTER_MAX_JOINTS = 32; // must be divisible by 4!
const U32 LL_HAND_JOINT_NUM = 31;
const U32 LL_FACE_JOINT_NUM = 30;
const S32 LL_CHARACTER_MAX_PRIORITY = 7;
const F32 LL_MAX_PELVIS_OFFSET = 5.f;
//-----------------------------------------------------------------------------
// class LLJoint
//-----------------------------------------------------------------------------
class LLJoint
{
public:
// priority levels, from highest to lowest
enum JointPriority
{
USE_MOTION_PRIORITY = -1,
LOW_PRIORITY = 0,
MEDIUM_PRIORITY,
HIGH_PRIORITY,
HIGHER_PRIORITY,
HIGHEST_PRIORITY,
ADDITIVE_PRIORITY = LL_CHARACTER_MAX_PRIORITY
};
enum DirtyFlags
{
MATRIX_DIRTY = 0x1 << 0,
ROTATION_DIRTY = 0x1 << 1,
POSITION_DIRTY = 0x1 << 2,
ALL_DIRTY = 0x7
};
protected:
std::string mName;
// parent joint
LLJoint *mParent;
// explicit transformation members
LLXformMatrix mXform;
LLXformMatrix mOldXform;
LLXformMatrix mDefaultXform;
LLUUID mId;
public:
U32 mDirtyFlags;
BOOL mUpdateXform;
BOOL mResetAfterRestoreOldXform;
// describes the skin binding pose
LLVector3 mSkinOffset;
S32 mJointNum;
// child joints
typedef std::list<LLJoint*> child_list_t;
child_list_t mChildren;
// debug statics
static S32 sNumTouches;
static S32 sNumUpdates;
public:
LLJoint();
LLJoint( const std::string &name, LLJoint *parent=NULL );
virtual ~LLJoint();
// set name and parent
void setup( const std::string &name, LLJoint *parent=NULL );
void touch(U32 flags = ALL_DIRTY);
// get/set name
const std::string& getName() const { return mName; }
void setName( const std::string &name ) { mName = name; }
// getParent
LLJoint *getParent() { return mParent; }
// getRoot
LLJoint *getRoot();
// search for child joints by name
LLJoint *findJoint( const std::string &name );
// add/remove children
void addChild( LLJoint *joint );
void removeChild( LLJoint *joint );
void removeAllChildren();
// get/set local position
const LLVector3& getPosition();
void setPosition( const LLVector3& pos );
void setDefaultPosition( const LLVector3& pos );
// get/set world position
LLVector3 getWorldPosition();
LLVector3 getLastWorldPosition();
void setWorldPosition( const LLVector3& pos );
// get/set local rotation
const LLQuaternion& getRotation();
void setRotation( const LLQuaternion& rot );
// get/set world rotation
LLQuaternion getWorldRotation();
LLQuaternion getLastWorldRotation();
void setWorldRotation( const LLQuaternion& rot );
// get/set local scale
const LLVector3& getScale();
void setScale( const LLVector3& scale );
// get/set world matrix
const LLMatrix4 &getWorldMatrix();
void setWorldMatrix( const LLMatrix4& mat );
void updateWorldMatrixChildren();
void updateWorldMatrixParent();
void updateWorldPRSParent();
void updateWorldMatrix();
// get/set skin offset
const LLVector3 &getSkinOffset();
void setSkinOffset( const LLVector3 &offset);
LLXformMatrix *getXform() { return &mXform; }
void clampRotation(LLQuaternion old_rot, LLQuaternion new_rot);
virtual BOOL isAnimatable() const { return TRUE; }
S32 getJointNum() const { return mJointNum; }
void setJointNum(S32 joint_num) { mJointNum = joint_num; }
void restoreOldXform( void );
void restoreToDefaultXform( void );
void setDefaultFromCurrentXform( void );
void storeCurrentXform( const LLVector3& pos );
//Accessor for the joint id
LLUUID getId( void ) { return mId; }
//Setter for the joints id
void setId( const LLUUID& id ) { mId = id;}
//If the old transform flag has been set, then the reset logic in avatar needs to be aware(test) of it
const BOOL doesJointNeedToBeReset( void ) const { return mResetAfterRestoreOldXform; }
//Setter for joint reset flag
void setJointToBeReset( BOOL val ) { mResetAfterRestoreOldXform = val; }
};
#endif // LL_LLJOINT_H
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