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/**
* @file llmotion.cpp
* @brief Implementation of LLMotion 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
* $/LicenseInfo$
*/
//-----------------------------------------------------------------------------
// Header Files
//-----------------------------------------------------------------------------
#include "linden_common.h"
#include "llmotion.h"
#include "llcriticaldamp.h"
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// LLMotion class
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// LLMotion()
// Class Constructor
//-----------------------------------------------------------------------------
LLMotion::LLMotion( const LLUUID &id ) :
mStopped(TRUE),
mActive(FALSE),
mID(id),
mActivationTimestamp(0.f),
mStopTimestamp(0.f),
mSendStopTimestamp(F32_MAX),
mResidualWeight(0.f),
mFadeWeight(1.f),
mDeactivateCallback(NULL),
mDeactivateCallbackUserData(NULL)
{
for (int i=0; i<3; ++i)
memset(&mJointSignature[i][0], 0, sizeof(U8) * LL_CHARACTER_MAX_JOINTS);
}
//-----------------------------------------------------------------------------
// ~LLMotion()
// Class Destructor
//-----------------------------------------------------------------------------
LLMotion::~LLMotion()
{
}
//-----------------------------------------------------------------------------
// fadeOut()
//-----------------------------------------------------------------------------
void LLMotion::fadeOut()
{
if (mFadeWeight > 0.01f)
{
mFadeWeight = lerp(mFadeWeight, 0.f, LLSmoothInterpolation::getInterpolant(0.15f));
}
else
{
mFadeWeight = 0.f;
}
}
//-----------------------------------------------------------------------------
// fadeIn()
//-----------------------------------------------------------------------------
void LLMotion::fadeIn()
{
if (mFadeWeight < 0.99f)
{
mFadeWeight = lerp(mFadeWeight, 1.f, LLSmoothInterpolation::getInterpolant(0.15f));
}
else
{
mFadeWeight = 1.f;
}
}
//-----------------------------------------------------------------------------
// addJointState()
//-----------------------------------------------------------------------------
void LLMotion::addJointState(const LLPointer<LLJointState>& jointState)
{
mPose.addJointState(jointState);
S32 priority = jointState->getPriority();
if (priority == LLJoint::USE_MOTION_PRIORITY)
{
priority = getPriority();
}
U32 usage = jointState->getUsage();
// for now, usage is everything
mJointSignature[0][jointState->getJoint()->getJointNum()] = (usage & LLJointState::POS) ? (0xff >> (7 - priority)) : 0;
mJointSignature[1][jointState->getJoint()->getJointNum()] = (usage & LLJointState::ROT) ? (0xff >> (7 - priority)) : 0;
mJointSignature[2][jointState->getJoint()->getJointNum()] = (usage & LLJointState::SCALE) ? (0xff >> (7 - priority)) : 0;
}
void LLMotion::setDeactivateCallback( void (*cb)(void *), void* userdata )
{
mDeactivateCallback = cb;
mDeactivateCallbackUserData = userdata;
}
//virtual
void LLMotion::setStopTime(F32 time)
{
mStopTimestamp = time;
mStopped = TRUE;
}
BOOL LLMotion::isBlending()
{
return mPose.getWeight() < 1.f;
}
//-----------------------------------------------------------------------------
// activate()
//-----------------------------------------------------------------------------
void LLMotion::activate(F32 time)
{
mActivationTimestamp = time;
mStopped = FALSE;
mActive = TRUE;
onActivate();
}
//-----------------------------------------------------------------------------
// deactivate()
//-----------------------------------------------------------------------------
void LLMotion::deactivate()
{
mActive = FALSE;
mPose.setWeight(0.f);
if (mDeactivateCallback)
{
(*mDeactivateCallback)(mDeactivateCallbackUserData);
mDeactivateCallback = NULL; // only call callback once
mDeactivateCallbackUserData = NULL;
}
onDeactivate();
}
BOOL LLMotion::canDeprecate()
{
return TRUE;
}
// End
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