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"

namespace cocos2d { namespace extension { namespace armature {

std::map<int, Armature *> Armature::_armatureIndexDic;

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


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

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

Armature::Armature()
    : _animation(NULL)
	, _armatureData(NULL)
	, _batchNode(NULL)
    , _atlas(NULL)
	, _parentBone(NULL)
	, _boneDic(NULL)
    , _topBoneList(NULL)
{
}


Armature::~Armature(void)
{
    if(NULL != _boneDic)
    {
        _boneDic->removeAllObjects();
        CC_SAFE_DELETE(_boneDic);
    }
    if (NULL != _topBoneList)
    {
        _topBoneList->removeAllObjects();
        CC_SAFE_DELETE(_topBoneList);
    }
    CC_SAFE_DELETE(_animation);
}


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


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

        CC_SAFE_DELETE(_animation);
        _animation = new ArmatureAnimation();
        _animation->init(this);

        CC_SAFE_DELETE(_boneDic);
        _boneDic	= new Dictionary();

        CC_SAFE_DELETE(_topBoneList);
        _topBoneList = new Array();
        _topBoneList->init();


        _blendFunc.src = CC_BLEND_SRC;
        _blendFunc.dst = CC_BLEND_DST;


        _name = name == NULL ? "" : name;

        ArmatureDataManager *armatureDataManager = ArmatureDataManager::sharedArmatureDataManager();

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

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

            _animation->setAnimationData(animationData);


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

            _armatureData = armatureData;


            DictElement *_element = NULL;
            Dictionary *boneDataDic = &armatureData->boneDataDic;
            CCDICT_FOREACH(boneDataDic, _element)
            {
                Bone *bone = createBone(_element->getStrKey());

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

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

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

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

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

            update(0);
            updateOffsetPoint();
        }
        else
        {
            _name = "new_armature";
            _armatureData = ArmatureData::create();
            _armatureData->name = _name;

            AnimationData *animationData = AnimationData::create();
            animationData->name = _name;

            armatureDataManager->addArmatureData(_name.c_str(), _armatureData);
            armatureDataManager->addAnimationData(_name.c_str(), animationData);

            _animation->setAnimationData(animationData);

        }

        setShaderProgram(ShaderCache::sharedShaderCache()->programForKey(kShader_PositionTextureColor));

        unscheduleUpdate();
        scheduleUpdate();

        setCascadeOpacityEnabled(true);
        setCascadeColorEnabled(true);

        bRet = true;
    }
    while (0);

    return bRet;
}

bool Armature::init(const char *name, Bone *parentBone)
{
    _parentBone = parentBone;
    return init(name);
}


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

    BoneData *boneData = (BoneData *)_armatureData->getBoneData(boneName);
    std::string parentName = boneData->parentName;

    Bone *bone = NULL;

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

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

    return bone;
}


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

    if (NULL != parentName)
    {
        Bone *boneParent = (Bone *)_boneDic->objectForKey(parentName);
        if (boneParent)
        {
            boneParent->addChildBone(bone);
        }
        else
        {
            if (_parentBone)
                _parentBone->addChildBone(bone);
            else
                _topBoneList->addObject(bone);
        }
    }
    else
    {
        if (_parentBone)
            _parentBone->addChildBone(bone);
        else
            _topBoneList->addObject(bone);
    }

    bone->setArmature(this);

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


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

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

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


Bone *Armature::getBone(const char *_name) const
{
    return (Bone *)_boneDic->objectForKey(_name);
}


void Armature::changeBoneParent(Bone *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)
    {
        Bone *boneParent = (Bone *)_boneDic->objectForKey(parentName);

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

Dictionary *Armature::getBoneDic()
{
    return _boneDic;
}

AffineTransform Armature::nodeToParentTransform()
{
    if (_transformDirty)
    {
        // Translate values
        float x = _position.x;
        float y = _position.y;

        if (_ignoreAnchorPointForPosition)
        {
            x += _anchorPointInPoints.x;
            y += _anchorPointInPoints.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 (_rotationX || _rotationY)
        {
            float radiansX = -CC_DEGREES_TO_RADIANS(_rotationX);
            float radiansY = -CC_DEGREES_TO_RADIANS(_rotationY);
            cx = cosf(radiansX);
            sx = sinf(radiansX);
            cy = cosf(radiansY);
            sy = sinf(radiansY);
        }

        // Add offset point
        x += cy * _offsetPoint.x * _scaleX + -sx * _offsetPoint.y * _scaleY;
        y += sy * _offsetPoint.x * _scaleX + cx * _offsetPoint.y * _scaleY;

        bool needsSkewMatrix = ( _skewX || _skewY );

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


        // Build Transform Matrix
        // Adjusted transform calculation for rotational skew
        _transform = AffineTransformMake( cy * _scaleX,  sy * _scaleX,
                                              -sx * _scaleY, cx * _scaleY,
                                              x, y );

        // XXX: Try to inline skew
        // If skew is needed, apply skew and then anchor point
        if (needsSkewMatrix)
        {
            AffineTransform skewMatrix = AffineTransformMake(1.0f, tanf(CC_DEGREES_TO_RADIANS(_skewY)),
                                           tanf(CC_DEGREES_TO_RADIANS(_skewX)), 1.0f,
                                           0.0f, 0.0f );
            _transform = AffineTransformConcat(skewMatrix, _transform);

            // adjust anchor point
            if (!_anchorPointInPoints.equals(PointZero))
            {
                _transform = AffineTransformTranslate(_transform, -_anchorPointInPoints.x, -_anchorPointInPoints.y);
            }
        }

        if (_additionalTransformDirty)
        {
            _transform = AffineTransformConcat(_transform, _additionalTransform);
            _additionalTransformDirty = false;
        }

        _transformDirty = false;
    }

    return _transform;
}

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


void Armature::update(float dt)
{
    _animation->update(dt);

    Object *object = NULL;
    CCARRAY_FOREACH(_topBoneList, object)
    {
        static_cast<Bone*>(object)->update(dt);
    }
}

void Armature::draw()
{
    if (_parentBone == NULL)
    {
        CC_NODE_DRAW_SETUP();
        ccGLBlendFunc(_blendFunc.src, _blendFunc.dst);
    }

    Object *object = NULL;
    CCARRAY_FOREACH(_children, object)
    {
        Bone *bone = static_cast<Bone *>(object);

        DisplayManager *displayManager = bone->getDisplayManager();
        Node *node = displayManager->getDisplayRenderNode();

        if (NULL == node)
            continue;

        if(Skin *skin = dynamic_cast<Skin *>(node))
        {
            TextureAtlas *textureAtlas = skin->getTextureAtlas();
            if(_atlas != textureAtlas)
            {
                if (_atlas)
                {
                    _atlas->drawQuads();
                    _atlas->removeAllQuads();
                }
            }

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

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

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

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

    if(_atlas && !_batchNode && _parentBone == NULL)
    {
        _atlas->drawQuads();
        _atlas->removeAllQuads();
    }
}

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

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

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

    // reset for next frame
    _orderOfArrival = 0;

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

    kmGLPopMatrix();
}

Rect Armature::boundingBox()
{
    float minx, miny, maxx, maxy = 0;

    bool first = true;

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

    Object *object = NULL;
    CCARRAY_FOREACH(_children, object)
    {
        Bone *bone = static_cast<Bone *>(object);
        Rect 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;
}

Bone *Armature::getBoneAtPoint(float x, float y)
{
    int length = _children->data->num;
    Bone **bs = (Bone **)_children->data->arr;

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

}}} // namespace cocos2d { namespace extension { namespace armature {