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/**
* @file lljointstate.h
* @brief Implementation of LLJointState 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_LLJOINTSTATE_H
#define LL_LLJOINTSTATE_H
//-----------------------------------------------------------------------------
// Header Files
//-----------------------------------------------------------------------------
#include "lljoint.h"
#include "llrefcount.h"
//-----------------------------------------------------------------------------
// class LLJointState
//-----------------------------------------------------------------------------
class LLJointState : public LLRefCount
{
public:
enum BlendPhase
{
INACTIVE,
EASE_IN,
ACTIVE,
EASE_OUT
};
protected:
// associated joint
LLJoint *mJoint;
// indicates which members are used
U32 mUsage;
// indicates weighted effect of this joint
F32 mWeight;
// transformation members
LLVector3 mPosition; // position relative to parent joint
LLQuaternion mRotation; // joint rotation relative to parent joint
LLVector3 mScale; // scale relative to rotated frame
LLJoint::JointPriority mPriority; // how important this joint state is relative to others
public:
// Constructor
LLJointState()
: mUsage(0)
, mJoint(NULL)
, mWeight(0.f)
, mPriority(LLJoint::USE_MOTION_PRIORITY)
{}
LLJointState(LLJoint* joint)
: mUsage(0)
, mJoint(joint)
, mWeight(0.f)
, mPriority(LLJoint::USE_MOTION_PRIORITY)
{}
// joint that this state is applied to
LLJoint* getJoint() { return mJoint; }
const LLJoint* getJoint() const { return mJoint; }
bool setJoint( LLJoint *joint ) { mJoint = joint; return mJoint != NULL; }
// transform type (bitwise flags can be combined)
// Note that these are set automatically when various
// member setPos/setRot/setScale functions are called.
enum Usage
{
POS = 1,
ROT = 2,
SCALE = 4,
};
U32 getUsage() const { return mUsage; }
void setUsage( U32 usage ) { mUsage = usage; }
F32 getWeight() const { return mWeight; }
void setWeight( F32 weight ) { mWeight = weight; }
// get/set position
const LLVector3& getPosition() const { return mPosition; }
void setPosition( const LLVector3& pos ) { llassert(mUsage & POS); mPosition = pos; }
// get/set rotation
const LLQuaternion& getRotation() const { return mRotation; }
void setRotation( const LLQuaternion& rot ) { llassert(mUsage & ROT); mRotation = rot; }
// get/set scale
const LLVector3& getScale() const { return mScale; }
void setScale( const LLVector3& scale ) { llassert(mUsage & SCALE); mScale = scale; }
// get/set priority
LLJoint::JointPriority getPriority() const { return mPriority; }
void setPriority( LLJoint::JointPriority priority ) { mPriority = priority; }
protected:
// Destructor
virtual ~LLJointState()
{
}
};
#endif // LL_LLJOINTSTATE_H
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