178 lines
5.3 KiB
C++
178 lines
5.3 KiB
C++
/**
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* @file llmotion.cpp
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* @brief Implementation of LLMotion class.
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*
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* $LicenseInfo:firstyear=2001&license=viewergpl$
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*
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* Copyright (c) 2001-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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//-----------------------------------------------------------------------------
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// Header Files
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//-----------------------------------------------------------------------------
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#include "linden_common.h"
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#include "llmotion.h"
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#include "llcriticaldamp.h"
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// LLMotion class
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// LLMotion()
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// Class Constructor
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//-----------------------------------------------------------------------------
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LLMotion::LLMotion( const LLUUID &id ) :
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mStopped(TRUE),
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mActive(FALSE),
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mID(id),
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mActivationTimestamp(0.f),
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mStopTimestamp(0.f),
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mSendStopTimestamp(F32_MAX),
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mResidualWeight(0.f),
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mFadeWeight(1.f),
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mDeactivateCallback(NULL),
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mDeactivateCallbackUserData(NULL)
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{
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for (int i=0; i<3; ++i)
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memset(&mJointSignature[i][0], 0, sizeof(U8) * LL_CHARACTER_MAX_JOINTS);
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}
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//-----------------------------------------------------------------------------
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// ~LLMotion()
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// Class Destructor
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//-----------------------------------------------------------------------------
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LLMotion::~LLMotion()
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{
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}
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//-----------------------------------------------------------------------------
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// fadeOut()
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//-----------------------------------------------------------------------------
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void LLMotion::fadeOut()
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{
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if (mFadeWeight > 0.01f)
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{
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mFadeWeight = lerp(mFadeWeight, 0.f, LLCriticalDamp::getInterpolant(0.15f));
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}
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else
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{
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mFadeWeight = 0.f;
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}
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}
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//-----------------------------------------------------------------------------
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// fadeIn()
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//-----------------------------------------------------------------------------
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void LLMotion::fadeIn()
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{
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if (mFadeWeight < 0.99f)
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{
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mFadeWeight = lerp(mFadeWeight, 1.f, LLCriticalDamp::getInterpolant(0.15f));
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}
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else
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{
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mFadeWeight = 1.f;
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}
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}
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//-----------------------------------------------------------------------------
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// addJointState()
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//-----------------------------------------------------------------------------
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void LLMotion::addJointState(const LLPointer<LLJointState>& jointState)
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{
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mPose.addJointState(jointState);
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S32 priority = jointState->getPriority();
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if (priority == LLJoint::USE_MOTION_PRIORITY)
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{
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priority = getPriority();
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}
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U32 usage = jointState->getUsage();
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// for now, usage is everything
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mJointSignature[0][jointState->getJoint()->getJointNum()] = (usage & LLJointState::POS) ? (0xff >> (7 - priority)) : 0;
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mJointSignature[1][jointState->getJoint()->getJointNum()] = (usage & LLJointState::ROT) ? (0xff >> (7 - priority)) : 0;
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mJointSignature[2][jointState->getJoint()->getJointNum()] = (usage & LLJointState::SCALE) ? (0xff >> (7 - priority)) : 0;
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}
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void LLMotion::setDeactivateCallback( void (*cb)(void *), void* userdata )
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{
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mDeactivateCallback = cb;
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mDeactivateCallbackUserData = userdata;
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}
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//virtual
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void LLMotion::setStopTime(F32 time)
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{
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mStopTimestamp = time;
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mStopped = TRUE;
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}
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BOOL LLMotion::isBlending()
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{
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return mPose.getWeight() < 1.f;
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}
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//-----------------------------------------------------------------------------
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// activate()
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//-----------------------------------------------------------------------------
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void LLMotion::activate(F32 time)
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{
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mActivationTimestamp = time;
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mStopped = FALSE;
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mActive = TRUE;
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onActivate();
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}
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//-----------------------------------------------------------------------------
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// deactivate()
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//-----------------------------------------------------------------------------
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void LLMotion::deactivate()
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{
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mActive = FALSE;
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mPose.setWeight(0.f);
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if (mDeactivateCallback)
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{
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(*mDeactivateCallback)(mDeactivateCallbackUserData);
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mDeactivateCallback = NULL; // only call callback once
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mDeactivateCallbackUserData = NULL;
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}
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onDeactivate();
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}
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BOOL LLMotion::canDeprecate()
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{
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return TRUE;
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}
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// End
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