axmol/extensions/CocoStudio/Armature/animation/CCProcessBase.cpp

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#include "CCProcessBase.h"
#include "../utils/CCUtilMath.h"

NS_CC_EXT_ARMATURE_BEGIN

ProcessBase::ProcessBase(void)
    : m_fProcessScale(1)
    , m_bIsPause(true)
    , m_bIsComplete(true)
    , m_bIsPlaying(false)
    , m_fCurrentPercent(0.0f)
    , m_iRawDuration(0)
    , m_eLoopType(ANIMATION_LOOP_BACK)
    , m_eTweenEasing(Linear)
    , m_iDurationTween(0)
    , m_fCurrentFrame(0)
    , m_iCurFrameIndex(0)
    , m_bIsLoopBack(false)
{
    /*
     *  set m_fAnimationInternal defualt value to CCDirector::sharedDirector()
     *  ->getAnimationInterval(), in line with game update speed
     */
    m_fAnimationInternal = CCDirector::getInstance()->getAnimationInterval();
}


ProcessBase::~ProcessBase(void)
{
}


void ProcessBase::pause()
{
    m_bIsPause = true;
    m_bIsPlaying = false;
}


void ProcessBase::resume()
{
    m_bIsPause = false;
    m_bIsPlaying = true;
}

void ProcessBase::stop()
{
    m_bIsComplete = true;
    m_bIsPlaying = false;
    m_fCurrentFrame = 0;
    m_fCurrentPercent = 0;
}

void ProcessBase::play(void *animation, int durationTo, int durationTween,  int loop, int tweenEasing)
{
    m_bIsComplete = false;
    m_bIsPause = false;
    m_bIsPlaying = true;
    m_fCurrentFrame = 0;

    /*
     *  Set m_iTotalFrames to durationTo, it is used for change tween between two animation.
     *  When changing end, m_iTotalFrames will be setted to _durationTween
     */
    m_iNextFrameIndex = durationTo;
    m_eTweenEasing = (CCTweenType)tweenEasing;

}

void ProcessBase::update(float dt)
{

    if (m_bIsComplete || m_bIsPause)
    {
        return;
    }

    /*
     *  Fileter the m_iDuration <=0 and dt >1
     *  If dt>1, generally speaking  the reason is the device is stuck.
     */
    if(m_iRawDuration <= 0 || dt > 1)
    {
        return;
    }

    if (m_iNextFrameIndex <= 0)
    {
        m_fCurrentPercent = 1;
        m_fCurrentFrame = 0;
    }
    else
    {
        /*
        *  update m_fCurrentFrame, every update add the frame passed.
        *  dt/m_fAnimationInternal determine it is not a frame animation. If frame speed changed, it will not make our
        *  animation speed slower or quicker.
        */
        m_fCurrentFrame += m_fProcessScale * (dt / m_fAnimationInternal);


        m_fCurrentPercent = m_fCurrentFrame / m_iNextFrameIndex;

        /*
        *	if m_fCurrentFrame is bigger or equal than m_iTotalFrames, then reduce it util m_fCurrentFrame is
        *  smaller than m_iTotalFrames
        */
        m_fCurrentFrame = fmodf(m_fCurrentFrame, m_iNextFrameIndex);
    }

    updateHandler();
}



void ProcessBase::gotoFrame(int frameIndex)
{
    m_iCurFrameIndex = frameIndex;
    pause();
}

int ProcessBase::getCurrentFrameIndex()
{
    m_iCurFrameIndex = m_iRawDuration * m_fCurrentPercent;
    return m_iCurFrameIndex;
}

NS_CC_EXT_ARMATURE_END