llmotion.cpp

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//-----------------------------------------------------------------------------
// Header Files
//-----------------------------------------------------------------------------
#include "linden_common.h"

#include "llmotion.h"
#include "llcriticaldamp.h"

//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// LLMotion class
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
// LLMotion()
// Class Constructor
//-----------------------------------------------------------------------------
LLMotion::LLMotion( const LLUUID &id )
{
        mActivationTimestamp = 0.f;
        mStopTimestamp = 0.f;
        mSendStopTimestamp = F32_MAX;
        mResidualWeight = 0.f;
        mFadeWeight = 1.f;
        mStopped = TRUE;
        mActive = FALSE;
        mDeactivateCallback = NULL;

        memset(&mJointSignature[0][0], 0, sizeof(U8) * LL_CHARACTER_MAX_JOINTS);
        memset(&mJointSignature[1][0], 0, sizeof(U8) * LL_CHARACTER_MAX_JOINTS);
        memset(&mJointSignature[2][0], 0, sizeof(U8) * LL_CHARACTER_MAX_JOINTS);        

        mID = id;
}

//-----------------------------------------------------------------------------
// ~LLMotion()
// Class Destructor
//-----------------------------------------------------------------------------
LLMotion::~LLMotion()
{
}

//-----------------------------------------------------------------------------
// fadeOut()
//-----------------------------------------------------------------------------
void LLMotion::fadeOut()
{
        if (mFadeWeight > 0.01f)
        {
                mFadeWeight = lerp(mFadeWeight, 0.f, LLCriticalDamp::getInterpolant(0.15f));
        }
        else
        {
                mFadeWeight = 0.f;
        }
}

//-----------------------------------------------------------------------------
// fadeIn()
//-----------------------------------------------------------------------------
void LLMotion::fadeIn()
{
        if (mFadeWeight < 0.99f)
        {
                mFadeWeight = lerp(mFadeWeight, 1.f, LLCriticalDamp::getInterpolant(0.15f));
        }
        else
        {
                mFadeWeight = 1.f;
        }
}

//-----------------------------------------------------------------------------
// addJointState()
//-----------------------------------------------------------------------------
void LLMotion::addJointState(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;
}

BOOL LLMotion::isBlending()
{
        return mPose.getWeight() < 1.f;
}

//-----------------------------------------------------------------------------
// activate()
//-----------------------------------------------------------------------------
void LLMotion::activate()
{
        mStopped = FALSE;
        mActive = TRUE;
        onActivate();
}

//-----------------------------------------------------------------------------
// deactivate()
//-----------------------------------------------------------------------------
void LLMotion::deactivate()
{
        mActive = FALSE;
        mPose.setWeight(0.f);

        if (mDeactivateCallback) (*mDeactivateCallback)(mDeactivateCallbackUserData);

        onDeactivate();
}

BOOL LLMotion::canDeprecate()
{
        return TRUE;
}

// End

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