axmol/extensions/CCArmature/CCArmature.cpp

/****************************************************************************
Copyright (c) 2013 cocos2d-x.org

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#include "CCArmature.h"
#include "utils/CCArmatureDataManager.h"
#include "utils/CCArmatureDefine.h"
#include "utils/CCDataReaderHelper.h"
#include "datas/CCDatas.h"
#include "display/CCSkin.h"

NS_CC_EXT_BEGIN

std::map<int, CCArmature *> CCArmature::m_sArmatureIndexDic;

CCArmature *CCArmature::create()
{
    CCArmature *armature = new CCArmature();
    if (armature && armature->init())
    {
        armature->autorelease();
        return armature;
    }
    CC_SAFE_DELETE(armature);
    return NULL;
}


CCArmature *CCArmature::create(const char *_name)
{
    CCArmature *armature = new CCArmature();
    if (armature && armature->init(_name))
    {
        armature->autorelease();
        return armature;
    }
    CC_SAFE_DELETE(armature);
    return NULL;
}

CCArmature *CCArmature::create(const char *name, CCBone *parentBone)
{
    CCArmature *armature = new CCArmature();
    if (armature && armature->init(name, parentBone))
    {
        armature->autorelease();
        return armature;
    }
    CC_SAFE_DELETE(armature);
    return NULL;
}

CCArmature::CCArmature()
    : m_pAnimation(NULL)
	, m_pArmatureData(NULL)
	, m_pBatchNode(NULL)
    , m_pAtlas(NULL)
	, m_pParentBone(NULL)
	, m_pBoneDic(NULL)
    , m_pTopBoneList(NULL)
{
}


CCArmature::~CCArmature(void)
{
    if(NULL != m_pBoneDic)
    {
        m_pBoneDic->removeAllObjects();
        CC_SAFE_DELETE(m_pBoneDic);
    }
    if (NULL != m_pTopBoneList)
    {
        m_pTopBoneList->removeAllObjects();
        CC_SAFE_DELETE(m_pTopBoneList);
    }
    CC_SAFE_DELETE(m_pAnimation);
}


bool CCArmature::init()
{
    return init(NULL);
}


bool CCArmature::init(const char *name)
{
    bool bRet = false;
    do
    {
        removeAllChildren();

        CC_SAFE_DELETE(m_pAnimation);
        m_pAnimation = new CCArmatureAnimation();
        m_pAnimation->init(this);

        CC_SAFE_DELETE(m_pBoneDic);
        m_pBoneDic	= new CCDictionary();

        CC_SAFE_DELETE(m_pTopBoneList);
        m_pTopBoneList = new CCArray();
        m_pTopBoneList->init();


        m_sBlendFunc.src = CC_BLEND_SRC;
        m_sBlendFunc.dst = CC_BLEND_DST;


        m_strName = name == NULL ? "" : name;

        CCArmatureDataManager *armatureDataManager = CCArmatureDataManager::sharedArmatureDataManager();

        if(m_strName.length() != 0)
        {
            m_strName = name;

            CCAnimationData *animationData = armatureDataManager->getAnimationData(name);
            CCAssert(animationData, "CCAnimationData not exist! ");

            m_pAnimation->setAnimationData(animationData);


            CCArmatureData *armatureData = armatureDataManager->getArmatureData(name);
            CCAssert(armatureData, "");

            m_pArmatureData = armatureData;


            CCDictElement *_element = NULL;
            CCDictionary *boneDataDic = &armatureData->boneDataDic;
            CCDICT_FOREACH(boneDataDic, _element)
            {
                CCBone *bone = createBone(_element->getStrKey());

                //! init bone's  CCTween to 1st movement's 1st frame
                do
                {

                    CCMovementData *movData = animationData->getMovement(animationData->movementNames.at(0).c_str());
                    CC_BREAK_IF(!movData);

                    CCMovementBoneData *movBoneData = movData->getMovementBoneData(bone->getName().c_str());
                    CC_BREAK_IF(!movBoneData || movBoneData->frameList.count() <= 0);

                    CCFrameData *frameData = movBoneData->getFrameData(0);
                    CC_BREAK_IF(!frameData);

                    bone->getTweenData()->copy(frameData);
                    bone->changeDisplayByIndex(frameData->displayIndex, false);
                }
                while (0);
            }

            update(0);
            updateOffsetPoint();
        }
        else
        {
            m_strName = "new_armature";
            m_pArmatureData = CCArmatureData::create();
            m_pArmatureData->name = m_strName;

            CCAnimationData *animationData = CCAnimationData::create();
            animationData->name = m_strName;

            armatureDataManager->addArmatureData(m_strName.c_str(), m_pArmatureData);
            armatureDataManager->addAnimationData(m_strName.c_str(), animationData);

            m_pAnimation->setAnimationData(animationData);

        }

        setShaderProgram(CCShaderCache::sharedShaderCache()->programForKey(kCCShader_PositionTextureColor));

        unscheduleUpdate();
        scheduleUpdate();

        setCascadeOpacityEnabled(true);
        setCascadeColorEnabled(true);

        bRet = true;
    }
    while (0);

    return bRet;
}

bool CCArmature::init(const char *name, CCBone *parentBone)
{
    m_pParentBone = parentBone;
    return init(name);
}


CCBone *CCArmature::createBone(const char *boneName)
{
    CCBone *existedBone = getBone(boneName);
    if(existedBone != NULL)
        return existedBone;

    CCBoneData *boneData = (CCBoneData *)m_pArmatureData->getBoneData(boneName);
    std::string parentName = boneData->parentName;

    CCBone *bone = NULL;

    if( parentName.length() != 0 )
    {
        createBone(parentName.c_str());
        bone = CCBone::create(boneName);
        addBone(bone, parentName.c_str());
    }
    else
    {
        bone = CCBone::create(boneName);
        addBone(bone, "");
    }

    bone->setBoneData(boneData);
    bone->getDisplayManager()->changeDisplayByIndex(-1, false);

    return bone;
}


void CCArmature::addBone(CCBone *bone, const char *parentName)
{
    CCAssert( bone != NULL, "Argument must be non-nil");
    CCAssert(m_pBoneDic->objectForKey(bone->getName()) == NULL, "bone already added. It can't be added again");

    if (NULL != parentName)
    {
        CCBone *boneParent = (CCBone *)m_pBoneDic->objectForKey(parentName);
        if (boneParent)
        {
            boneParent->addChildBone(bone);
        }
        else
        {
            if (m_pParentBone)
                m_pParentBone->addChildBone(bone);
            else
                m_pTopBoneList->addObject(bone);
        }
    }
    else
    {
        if (m_pParentBone)
            m_pParentBone->addChildBone(bone);
        else
            m_pTopBoneList->addObject(bone);
    }

    bone->setArmature(this);

    m_pBoneDic->setObject(bone, bone->getName());
    addChild(bone);
}


void CCArmature::removeBone(CCBone *bone, bool recursion)
{
    CCAssert(bone != NULL, "bone must be added to the bone dictionary!");

    bone->setArmature(NULL);
    bone->removeFromParent(recursion);

    if (m_pTopBoneList->containsObject(bone))
    {
        m_pTopBoneList->removeObject(bone);
    }
    m_pBoneDic->removeObjectForKey(bone->getName());
    removeChild(bone, true);
}


CCBone *CCArmature::getBone(const char *_name) const
{
    return (CCBone *)m_pBoneDic->objectForKey(_name);
}


void CCArmature::changeBoneParent(CCBone *bone, const char *parentName)
{
    CCAssert(bone != NULL, "bone must be added to the bone dictionary!");

    bone->getParentBone()->getChildren()->removeObject(bone);
    bone->setParentBone(NULL);

    if (parentName != NULL)
    {
        CCBone *boneParent = (CCBone *)m_pBoneDic->objectForKey(parentName);

        if (boneParent)
        {
            boneParent->addChildBone(bone);
        }
    }
}

CCDictionary *CCArmature::getBoneDic()
{
    return m_pBoneDic;
}

CCAffineTransform CCArmature::nodeToParentTransform()
{
    if (m_bTransformDirty)
    {
        // Translate values
        float x = m_obPosition.x;
        float y = m_obPosition.y;

        if (m_bIgnoreAnchorPointForPosition)
        {
            x += m_obAnchorPointInPoints.x;
            y += m_obAnchorPointInPoints.y;
        }

        // Rotation values
        // Change rotation code to handle X and Y
        // If we skew with the exact same value for both x and y then we're simply just rotating
        float cx = 1, sx = 0, cy = 1, sy = 0;
        if (m_fRotationX || m_fRotationY)
        {
            float radiansX = -CC_DEGREES_TO_RADIANS(m_fRotationX);
            float radiansY = -CC_DEGREES_TO_RADIANS(m_fRotationY);
            cx = cosf(radiansX);
            sx = sinf(radiansX);
            cy = cosf(radiansY);
            sy = sinf(radiansY);
        }

        // Add offset point
        x += cy * m_pOffsetPoint.x * m_fScaleX + -sx * m_pOffsetPoint.y * m_fScaleY;
        y += sy * m_pOffsetPoint.x * m_fScaleX + cx * m_pOffsetPoint.y * m_fScaleY;

        bool needsSkewMatrix = ( m_fSkewX || m_fSkewY );

        // optimization:
        // inline anchor point calculation if skew is not needed
        // Adjusted transform calculation for rotational skew
        if (! needsSkewMatrix && !m_obAnchorPointInPoints.equals(CCPointZero))
        {
            x += cy * -m_obAnchorPointInPoints.x * m_fScaleX + -sx * -m_obAnchorPointInPoints.y * m_fScaleY;
            y += sy * -m_obAnchorPointInPoints.x * m_fScaleX +  cx * -m_obAnchorPointInPoints.y * m_fScaleY;
        }


        // Build Transform Matrix
        // Adjusted transform calculation for rotational skew
        m_sTransform = CCAffineTransformMake( cy * m_fScaleX,  sy * m_fScaleX,
                                              -sx * m_fScaleY, cx * m_fScaleY,
                                              x, y );

        // XXX: Try to inline skew
        // If skew is needed, apply skew and then anchor point
        if (needsSkewMatrix)
        {
            CCAffineTransform skewMatrix = CCAffineTransformMake(1.0f, tanf(CC_DEGREES_TO_RADIANS(m_fSkewY)),
                                           tanf(CC_DEGREES_TO_RADIANS(m_fSkewX)), 1.0f,
                                           0.0f, 0.0f );
            m_sTransform = CCAffineTransformConcat(skewMatrix, m_sTransform);

            // adjust anchor point
            if (!m_obAnchorPointInPoints.equals(CCPointZero))
            {
                m_sTransform = CCAffineTransformTranslate(m_sTransform, -m_obAnchorPointInPoints.x, -m_obAnchorPointInPoints.y);
            }
        }

        if (m_bAdditionalTransformDirty)
        {
            m_sTransform = CCAffineTransformConcat(m_sTransform, m_sAdditionalTransform);
            m_bAdditionalTransformDirty = false;
        }

        m_bTransformDirty = false;
    }

    return m_sTransform;
}

void CCArmature::updateOffsetPoint()
{
    // Set contentsize and Calculate anchor point.
    CCRect rect = boundingBox();
    setContentSize(rect.size);
    m_pOffsetPoint = ccp(-rect.origin.x,  -rect.origin.y);
    setAnchorPoint(ccp(m_pOffsetPoint.x / rect.size.width, m_pOffsetPoint.y / rect.size.height));
}


void CCArmature::update(float dt)
{
    m_pAnimation->update(dt);

    CCObject *object = NULL;
    CCARRAY_FOREACH(m_pTopBoneList, object)
    {
        ((CCBone *)object)->update(dt);
    }
}

void CCArmature::draw()
{
    if (m_pParentBone == NULL)
    {
        CC_NODE_DRAW_SETUP();
        ccGLBlendFunc(m_sBlendFunc.src, m_sBlendFunc.dst);
    }

    CCObject *object = NULL;
    CCARRAY_FOREACH(m_pChildren, object)
    {
        CCBone *bone = (CCBone *)object;

        CCDisplayManager *displayManager = bone->getDisplayManager();
        CCNode *node = displayManager->getDisplayRenderNode();

        if (NULL == node)
            continue;

        if(CCSkin *skin = dynamic_cast<CCSkin *>(node))
        {
            CCTextureAtlas *textureAtlas = skin->getTextureAtlas();
            if(m_pAtlas != textureAtlas)
            {
                if (m_pAtlas)
                {
                    m_pAtlas->drawQuads();
                    m_pAtlas->removeAllQuads();
                }
            }

            m_pAtlas = textureAtlas;
            if (m_pAtlas->getCapacity() == m_pAtlas->getTotalQuads() && !m_pAtlas->resizeCapacity(m_pAtlas->getCapacity() * 2))
                return;

            skin->draw();
        }
        else if(CCArmature *armature = dynamic_cast<CCArmature *>(node))
        {
            CCTextureAtlas *textureAtlas = armature->getTextureAtlas();

            if(m_pAtlas != textureAtlas)
            {
                if (m_pAtlas)
                {
                    m_pAtlas->drawQuads();
                    m_pAtlas->removeAllQuads();
                }
            }
            armature->draw();
        }
        else
        {
            if (m_pAtlas)
            {
                m_pAtlas->drawQuads();
                m_pAtlas->removeAllQuads();
            }
            node->visit();

            CC_NODE_DRAW_SETUP();
            ccGLBlendFunc(m_sBlendFunc.src, m_sBlendFunc.dst);
        }
    }

    if(m_pAtlas && !m_pBatchNode && m_pParentBone == NULL)
    {
        m_pAtlas->drawQuads();
        m_pAtlas->removeAllQuads();
    }
}

void CCArmature::visit()
{
    // quick return if not visible. children won't be drawn.
    if (!m_bVisible)
    {
        return;
    }
    kmGLPushMatrix();

    if (m_pGrid && m_pGrid->isActive())
    {
        m_pGrid->beforeDraw();
    }

    transform();
    sortAllChildren();
    draw();

    // reset for next frame
    m_uOrderOfArrival = 0;

    if (m_pGrid && m_pGrid->isActive())
    {
        m_pGrid->afterDraw(this);
    }

    kmGLPopMatrix();
}

CCRect CCArmature::boundingBox()
{
    float minx, miny, maxx, maxy = 0;

    bool first = true;

    CCRect boundingBox = CCRectMake(0, 0, 0, 0);

    CCObject *object = NULL;
    CCARRAY_FOREACH(m_pChildren, object)
    {
        CCBone *bone = (CCBone *)object;
        CCRect r = bone->getDisplayManager()->getBoundingBox();

        if(first)
        {
            minx = r.getMinX();
            miny = r.getMinY();
            maxx = r.getMaxX();
            maxy = r.getMaxY();

            first = false;
        }
        else
        {
            minx = r.getMinX() < boundingBox.getMinX() ? r.getMinX() : boundingBox.getMinX();
            miny = r.getMinY() < boundingBox.getMinY() ? r.getMinY() : boundingBox.getMinY();
            maxx = r.getMaxX() > boundingBox.getMaxX() ? r.getMaxX() : boundingBox.getMaxX();
            maxy = r.getMaxY() > boundingBox.getMaxY() ? r.getMaxY() : boundingBox.getMaxY();
        }

        boundingBox.setRect(minx, miny, maxx - minx, maxy - miny);
    }

    return boundingBox;
}

CCBone *CCArmature::getBoneAtPoint(float x, float y)
{
    int length = m_pChildren->data->num;
    CCBone **bs = (CCBone **)m_pChildren->data->arr;

    for(int i = length - 1; i >= 0; i--)
    {
        if(bs[i]->getDisplayManager()->containPoint(x, y))
        {
            return bs[i];
        }
    }
    return NULL;
}

NS_CC_EXT_END