axmol/cocos/editor-support/cocostudio/ActionTimeline/CCBoneNode.cpp

/****************************************************************************
Copyright (c) 2014 cocos2d-x.org

http://www.cocos2d-x.org

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****************************************************************************/

#include "base/CCDirector.h"
#include "renderer/CCRenderer.h"
#include "renderer/ccGLStateCache.h"
#include "renderer/CCGLProgram.h"
#include "renderer/CCGLProgramState.h"

#include "CCBoneNode.h"
#include "CCSkeletonNode.h"

using namespace cocos2d;

NS_TIMELINE_BEGIN

BoneNode::BoneNode()
: _isRackShow(true)
, _rackColor(Color4F::WHITE)
, _rootSkeleton(nullptr)
, _blendFunc(BlendFunc::ALPHA_NON_PREMULTIPLIED)
{
}


BoneNode* BoneNode::create()
{
    BoneNode* ret = new (std::nothrow) BoneNode();
    if (ret && ret->init())
    {
        ret->autorelease();
        return ret;
    }
    CC_SAFE_DELETE(ret);
    return nullptr;
}


BoneNode* BoneNode::create(const int &length)
{
    BoneNode* ret = new (std::nothrow) BoneNode();
    if (ret && ret->init())
    {
        ret->setDebugDrawLength(length);
        ret->autorelease();
    }
    else
    {
        CC_SAFE_DELETE(ret);
    }
    return ret;
}

void BoneNode::addChild(cocos2d::Node* child, int localZOrder, int tag)
{
    Node::addChild(child, localZOrder, tag);
    addToChildrenListHelper(child);
}

void BoneNode::addChild(Node* child, int localZOrder, const std::string &name)
{
    Node::addChild(child, localZOrder, name);
    addToChildrenListHelper(child);
}

void BoneNode::addSkin(SkinNode* skin, bool isDisplay, bool hideOthers)
{
    CCASSERT(skin != nullptr, "Argument must be non-nil");
    if (hideOthers)
    {
        for (auto &bonskin : _boneSkins)
        {
            bonskin->setVisible(false);
        }
    }
    Node::addChild(skin);
    skin->setVisible(isDisplay);
}

void BoneNode::addSkin(SkinNode* skin, bool display)
{
    addSkin(skin, display, false);
}

void BoneNode::removeChild(Node* child, bool cleanup /* = true */)
{
    Node::removeChild(child, cleanup);
    removeFromChildrenListHelper(child);
}

void BoneNode::removeFromBoneList(BoneNode* bone)
{
    _childBones.eraseObject(bone);
    bone->_rootSkeleton = nullptr;
    auto subBones = bone->getAllSubBones();
    subBones.pushBack(bone);
    for (auto &subBone : subBones)
    {
        subBone->_rootSkeleton = nullptr;
        _rootSkeleton->_subBonesMap.erase(subBone->getName());
        if (bone->_isRackShow && bone->_visible)
        {
            _rootSkeleton->_subDrawBonesDirty = true;
            _rootSkeleton->_subDrawBonesOrderDirty = true;
        }
    }
}

void BoneNode::addToBoneList(BoneNode* bone)
{
    _childBones.pushBack(bone);
    if (bone->_rootSkeleton == nullptr && _rootSkeleton != nullptr)
    {
        auto subBones = bone->getAllSubBones();
        subBones.pushBack(bone);
        for (auto &subBone : subBones)
        {
            subBone->_rootSkeleton = _rootSkeleton;
            auto bonename = subBone->getName();
            if (_rootSkeleton->_subBonesMap.find(bonename) == _rootSkeleton->_subBonesMap.end())
            {
                _rootSkeleton->_subBonesMap.insert(subBone->getName(), subBone);
                if (bone->_isRackShow && bone->_visible)
                {
                    _rootSkeleton->_subDrawBonesDirty = true;
                    _rootSkeleton->_subDrawBonesOrderDirty = true;
                }
            }
            else
                CCLOG("already has a bone named %s in skeleton %s", bonename.c_str(), _rootSkeleton->getName().c_str());
        }

        if (bone->_isRackShow && bone->_visible)
        {
            _rootSkeleton->_subDrawBonesDirty = true;
            _rootSkeleton->_subDrawBonesOrderDirty = true;
        }
    }
}

void BoneNode::addToSkinList(SkinNode* skin)
{
    _boneSkins.pushBack(skin);
}

void BoneNode::removeFromSkinList(SkinNode* skin)
{
    _boneSkins.eraseObject(skin);
}

void BoneNode::displaySkin(SkinNode* skin, bool hideOthers)
{
    for (auto boneskin : _boneSkins)
    {
        if (boneskin == skin)
        {
            boneskin->setVisible(true);
        }
        else if (hideOthers)
        {
            boneskin->setVisible(false);
        }
    }
}

void BoneNode::displaySkin(const std::string &skinName, bool hideOthers)
{
    for (auto &skin : _boneSkins)
    {
        if (skinName == skin->getName())
        {
            skin->setVisible(true);
        }
        else if (hideOthers)
        {
            skin->setVisible(false);
        }
    }
}

cocos2d::Vector<SkinNode*> BoneNode::getVisibleSkins() const
{
    cocos2d::Vector<SkinNode*> displayingSkins;
    for (const auto &boneskin : _boneSkins)
    {
        if (boneskin->isVisible())
        {
            displayingSkins.pushBack(boneskin);
        }
    }
    return displayingSkins;
}

cocos2d::Rect BoneNode::getBoundingBox() const
{
    Rect boundingBox = getVisibleSkinsRect();
    return RectApplyAffineTransform(boundingBox, this->getNodeToParentAffineTransform());
}

cocos2d::Rect BoneNode::getVisibleSkinsRect() const
{
    float minx, miny, maxx, maxy = 0;
    minx = miny = maxx = maxy;
    bool first = true;

    Rect displayRect = Rect(0, 0, 0, 0);
    if (_isRackShow && _rootSkeleton != nullptr && _rootSkeleton->_isRackShow)
    {
        maxx = _rackLength;
        maxy = _rackWidth;
        first = false;
    }

    for (const auto& skin : _boneSkins)
    {
        Rect r = skin->getBoundingBox();
        if (!skin->isVisible() || r.equals(Rect::ZERO))
            continue;

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

            first = false;
        }
        else
        {
            minx = MIN(r.getMinX(), minx);
            miny = MIN(r.getMinY(), miny);
            maxx = MAX(r.getMaxX(), maxx);
            maxy = MAX(r.getMaxY(), maxy);
        }
        displayRect.setRect(minx, miny, maxx - minx, maxy - miny);
    }
    return displayRect;
}

void BoneNode::setBlendFunc(const BlendFunc &blendFunc)
{
    _blendFunc = blendFunc;
}

void BoneNode::setDebugDrawLength(float length)
{
    _rackLength = length;
    updateVertices();
}

void BoneNode::setDebugDrawWidth(float width)
{
    _rackWidth = width;
    updateVertices();
}

void BoneNode::setDebugDrawEnabled(bool isDebugDraw)
{
    if (_isRackShow == isDebugDraw)
        return;
    _isRackShow = isDebugDraw;
    if (_visible && nullptr != _rootSkeleton)
    {
        _rootSkeleton->_subDrawBonesDirty = true;
        _rootSkeleton->_subDrawBonesOrderDirty = true;
    }
}

void BoneNode::setDebugDrawColor(const cocos2d::Color4F &color)
{
    _rackColor = color;
    updateColor();
}


void BoneNode::draw(cocos2d::Renderer *renderer, const cocos2d::Mat4 &transform, uint32_t flags)
{
    if (!_isRackShow || nullptr != _rootSkeleton)
        return;

    _customCommand.init(_globalZOrder, transform, flags);
    _customCommand.func = CC_CALLBACK_0(BoneNode::onDraw, this, transform, flags);
    renderer->addCommand(&_customCommand);

    for (int i = 0; i < 4; ++i)
    {
        Vec4 pos;
        pos.x = _squareVertices[i].x; pos.y = _squareVertices[i].y; pos.z = _positionZ;
        pos.w = 1;
        _modelViewTransform.transformVector(&pos);
        _noMVPVertices[i] = Vec3(pos.x, pos.y, pos.z) / pos.w;
    }
}

BoneNode::~BoneNode()
{
}

bool BoneNode::init()
{
    _rackLength = 50;
    _rackWidth = 20;
    updateVertices();
    setGLProgramState(cocos2d::GLProgramState::getOrCreateWithGLProgramName(cocos2d::GLProgram::SHADER_NAME_POSITION_COLOR_NO_MVP));
    return true;
}

void BoneNode::updateVertices()
{
    if (_rackLength != _squareVertices[2].x - _anchorPointInPoints.x || _squareVertices[3].y != _rackWidth / 2 - _anchorPointInPoints.y)
    {
        _squareVertices[1].x = _squareVertices[1].y = _squareVertices[3].y = .0f;
        _squareVertices[0].x = _squareVertices[2].x = _rackLength * .1f;
        _squareVertices[2].y = _rackWidth * .5f;
        _squareVertices[0].y = -_squareVertices[2].y;
        _squareVertices[3].x = _rackLength;

        for (int i = 0; i < 4; i++)
        {
            _squareVertices[i] += _anchorPointInPoints;
        }
        _transformUpdated = _transformDirty = _inverseDirty = _contentSizeDirty = true;
    }
}

void BoneNode::updateColor()
{
    for (unsigned int i = 0; i < 4; i++)
    {
        _squareColors[i] = _rackColor;
    }
    _transformUpdated = _transformDirty = _inverseDirty = _contentSizeDirty = true;
}

void BoneNode::onDraw(const Mat4& transform, uint32_t flags)
{
    getGLProgram()->use();
    getGLProgram()->setUniformsForBuiltins(transform);

    GL::enableVertexAttribs(GL::VERTEX_ATTRIB_FLAG_POSITION | GL::VERTEX_ATTRIB_FLAG_COLOR);

#ifdef EMSCRIPTEN
    setGLBufferData(_noMVPVertices, 4 * sizeof(Vec3), 0);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, 0, 0);

    setGLBufferData(_squareColors, 4 * sizeof(Color4F), 1);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_FLOAT, GL_FALSE, 0, 0);
#else
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, 0, _noMVPVertices);
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_COLOR, 4, GL_FLOAT, GL_FALSE, 0, _squareColors);
#endif // EMSCRIPTEN

    cocos2d::GL::blendFunc(_blendFunc.src, _blendFunc.dst);

    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);

#ifdef CC_STUDIO_ENABLED_VIEW
#ifdef EMSCRIPTEN
    setGLBufferData(_noMVPVertices, 4 * sizeof(Vec3), 0);
#else
    glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, 0, _noMVPVertices);
#endif
    glEnable(GL_LINE_SMOOTH);
    glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
    glDrawArrays(GL_LINE_LOOP, 0, 4);
    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, 8);
#else
    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, 4);
#endif //CC_STUDIO_ENABLED_VIEW

}

cocos2d::Vector<BoneNode*> BoneNode::getAllSubBones() const
{
    cocos2d::Vector<BoneNode*> allBones;
    std::stack<BoneNode*> boneStack; // for avoid recursive
    for (const auto& bone : _childBones)
    {
        boneStack.push(bone);
    }

    while (boneStack.size() > 0)
    {
        auto top = boneStack.top();
        allBones.pushBack(top);
        boneStack.pop();
        auto topchildren = top->getChildBones();
        if (topchildren.size() > 0)
        {
            for (const auto& childbone : topchildren)
            {
                boneStack.push(childbone);
            }
        }
    }
    return allBones;
}

cocos2d::Vector<SkinNode*> BoneNode::getAllSubSkins() const
{
    auto allbones = getAllSubBones();
    cocos2d::Vector<SkinNode*> allskins;
    for (const auto& bone : allbones)
    {
        for (const auto& skin : bone->getSkins())
        {
            allskins.pushBack(skin);
        }
    }
    return allskins;
}


void BoneNode::sortAllChildren()
{
    Node::sortAllChildren();
    std::sort(_childBones.begin(), _childBones.end(), nodeComparisonLess);
    std::sort(_boneSkins.begin(), _boneSkins.end(), nodeComparisonLess);
}

SkeletonNode* BoneNode::getRootSkeletonNode() const
{
    return _rootSkeleton;
}

#ifdef CC_STUDIO_ENABLED_VIEW
bool BoneNode::isPointOnRack(const cocos2d::Vec2& bonePoint)
{
    if (bonePoint.x >= 0.0f && bonePoint.y >= _squareVertices[0].y
        && bonePoint.x <= _rackLength &&
        bonePoint.y <= _squareVertices[2].y)
    {
        if (_rackLength != 0.0f && _rackWidth != 0.0f)
        {
            float a1 = _squareVertices[1].y / (_squareVertices[3].x - _squareVertices[0].x);
            float a2 = _squareVertices[1].y / _squareVertices[0].x;
            float b1 = a1 * _squareVertices[0].x;
            float b2 = a1 * _squareVertices[3].x + _squareVertices[1].y;

            if (bonePoint.y >= a1 * bonePoint.x - b1 &&
                bonePoint.y <= a2 * bonePoint.x + _squareVertices[1].y &&
                bonePoint.y >= -a2 * bonePoint.x + _squareVertices[1].y &&
                bonePoint.y <= -a1 * bonePoint.x + b2)
                return true;
        }
    }
    return false;
}
#endif //CC_STUDIO_ENABLED_VIEW

void BoneNode::batchBoneDrawToSkeleton(BoneNode* bone) const
{
    Vec3 vpos[4];
    for (int i = 0; i < 4; i++)
    {
        Vec4 pos;
        pos.x = bone->_squareVertices[i].x; pos.y = bone->_squareVertices[i].y; pos.z = bone->_positionZ;
        pos.w = 1;
        bone->_modelViewTransform.transformVector(&pos);  // call after visit
        vpos[i] = Vec3(pos.x, pos.y, pos.z) / pos.w;
    }

    int count = bone->_rootSkeleton->_batchedVeticesCount;
    if (count + 8 >(int)(bone->_rootSkeleton->_batchedBoneVetices.capacity()))
    {
        bone->_rootSkeleton->_batchedBoneVetices.resize(count + 100);
        bone->_rootSkeleton->_batchedBoneColors.resize(count + 100);
    }
    for (int i = 0; i < 4; i++)
    {
        bone->_rootSkeleton->_batchedBoneVetices[count + i] = vpos[i];
        bone->_rootSkeleton->_batchedBoneColors[count + i] = bone->_squareColors[i];
    }
    bone->_rootSkeleton->_batchedVeticesCount += 4;
    count += 4;
#ifdef CC_STUDIO_ENABLED_VIEW
    for (int i = 0; i < 4; i++)
    {
        bone->_rootSkeleton->_batchedBoneVetices[count + i] = vpos[i];
        bone->_rootSkeleton->_batchedBoneColors[count + i] = bone->_squareColors[i];
    }
    bone->_rootSkeleton->_batchedVeticesCount += 4;
#endif //CC_STUDIO_ENABLED_VIEW
}

void BoneNode::setLocalZOrder(int localZOrder)
{
    Node::setLocalZOrder(localZOrder);
    if (_rootSkeleton != nullptr && this->_visible && this->_isRackShow)
        _rootSkeleton->_subDrawBonesOrderDirty = true;
}

void BoneNode::setName(const std::string& name)
{
    auto oldname = getName();
    Node::setName(name);
    if (_rootSkeleton != nullptr)
    {
        auto oiter = _rootSkeleton->_subBonesMap.find(oldname);
        auto niter = _rootSkeleton->_subBonesMap.find(name);
        if (oiter != _rootSkeleton->_subBonesMap.end() &&
            niter == _rootSkeleton->_subBonesMap.end())
        {
            auto node = oiter->second;
            _rootSkeleton->_subBonesMap.erase(oiter);
            _rootSkeleton->_subBonesMap.insert(name, node);
        }
    }
}

void BoneNode::addToChildrenListHelper(Node * child)
{
    BoneNode* bone = dynamic_cast<BoneNode*>(child);
    if (nullptr != bone)
    {
        addToBoneList(bone);
    }
    else
    {
        SkinNode* skin = dynamic_cast<SkinNode*>(child);
        if (nullptr != skin)
        {
            addToSkinList(skin);
        }
    }
}

void BoneNode::removeFromChildrenListHelper(Node * child)
{
    BoneNode* bone = dynamic_cast<BoneNode*>(child);
    if (nullptr != bone)
    {
        removeFromBoneList(bone);
        if (bone->_isRackShow)
        {
            _rootSkeleton->_subDrawBonesDirty = true;
            _rootSkeleton->_subDrawBonesOrderDirty = true;
        }
    }
    else
    {
        SkinNode* skin = dynamic_cast<SkinNode*>(child);
        if (nullptr != skin)
        {
            removeFromSkinList(skin);
        }
    }
}

void BoneNode::setVisible(bool visible)
{
    if (_visible == visible)
        return;

    Node::setVisible(visible);
    if (_isRackShow)
    {
        _rootSkeleton->_subDrawBonesDirty = true;
        _rootSkeleton->_subDrawBonesOrderDirty = true;
    }
}

void BoneNode::setContentSize(const Size& contentSize)
{
    Node::setContentSize(contentSize);
    updateVertices();
}

void BoneNode::setAnchorPoint(const Vec2& anchorPoint)
{
    Node::setAnchorPoint(anchorPoint);
    updateVertices();
}

NS_TIMELINE_END