axmol/extensions/cocostudio/WidgetReader/ParticleReader/ParticleReader.cpp

/****************************************************************************
 Copyright (c) 2014 cocos2d-x.org
 
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#include "cocostudio/WidgetReader/ParticleReader/ParticleReader.h"

#include "base/ccTypes.h"
#include "base/ccUtils.h"
#include "2d/CCParticleSystemQuad.h"
#include "platform/CCFileUtils.h"
#include "cocostudio/CSParseBinary_generated.h"
#include "cocostudio/WidgetReader/NodeReader/NodeReader.h"

#include "flatbuffers/flatbuffers.h"

USING_NS_CC;
using namespace flatbuffers;

namespace cocostudio
{
    IMPLEMENT_CLASS_NODE_READER_INFO(ParticleReader)
    
    ParticleReader::ParticleReader()
    {
        
    }
    
    ParticleReader::~ParticleReader()
    {
        
    }
    
    static ParticleReader* _instanceParticleReader = nullptr;
    
    ParticleReader* ParticleReader::getInstance()
    {
        if (!_instanceParticleReader)
        {
            _instanceParticleReader = new (std::nothrow) ParticleReader();
        }
        
        return _instanceParticleReader;
    }
    
    void ParticleReader::purge()
    {
        CC_SAFE_DELETE(_instanceParticleReader);
    }
    
    void ParticleReader::destroyInstance()
    {
        CC_SAFE_DELETE(_instanceParticleReader);
    }
    
    Offset<Table> ParticleReader::createOptionsWithFlatBuffers(pugi::xml_node objectData,
                                                               flatbuffers::FlatBufferBuilder *builder)
    {
        auto temp = NodeReader::getInstance()->createOptionsWithFlatBuffers(objectData, builder);
        auto nodeOptions = *(Offset<WidgetOptions>*)(&temp);
        
        std::string path;
        std::string plistFile;
        int resourceType = 0;
        
        cocos2d::BlendFunc blendFunc = cocos2d::BlendFunc::ALPHA_PREMULTIPLIED;
        
        // child elements
        auto child = objectData.first_child();
        while (child)
        {
            std::string name = child.name();
            
            if (name == "FileData")
            {
                auto attribute =  child.first_attribute();
                
                while (attribute)
                {
                    name = attribute.name();
                    std::string value = attribute.value();
                    
                    if (name == "Path")
                    {
                        path = value;
                    }
                    else if (name == "Type")
                    {
                        resourceType = 0;
                    }
                    else if (name == "Plist")
                    {
                        plistFile = value;
                    }
                    
                    attribute = attribute.next_attribute();
                }
            }
            else if (name == "BlendFunc")
            {
                auto attribute =  child.first_attribute();
                
                while (attribute)
                {
                    name = attribute.name();
                    std::string value = attribute.value();
                    
                    if (name == "Src")
                    {
                        blendFunc.src = utils::toBackendBlendFactor(atoi(value.c_str()));
                    }
                    else if (name == "Dst")
                    {
                        blendFunc.dst = utils::toBackendBlendFactor(atoi(value.c_str()));
                    }
                    
                    attribute = attribute.next_attribute();
                }
            }
            
            child = child.next_sibling();
        }
        
        flatbuffers::BlendFunc f_blendFunc(utils::toGLBlendFactor(blendFunc.src), utils::toGLBlendFactor(blendFunc.dst));
        
        auto options = CreateParticleSystemOptions(*builder,
                                                   nodeOptions,
                                                   CreateResourceData(*builder,
                                                                      builder->CreateString(path),
                                                                      builder->CreateString(plistFile),
                                                                      resourceType),
                                                   &f_blendFunc);
        
        return *(Offset<Table>*)(&options);
    }
    
    void ParticleReader::setPropsWithFlatBuffers(cocos2d::Node *node,
                                                 const flatbuffers::Table *particleOptions)
    {
        auto particle = dynamic_cast<ParticleSystemQuad*>(node);
        auto options = (ParticleSystemOptions*)particleOptions;
        
        auto f_blendFunc = options->blendFunc();
        if (particle && f_blendFunc)
        {
            cocos2d::BlendFunc blendFunc = cocos2d::BlendFunc::ALPHA_PREMULTIPLIED;
            blendFunc.src = utils::toBackendBlendFactor(f_blendFunc->src());
            blendFunc.dst = utils::toBackendBlendFactor(f_blendFunc->dst());
            particle->setBlendFunc(blendFunc);
        }
        
        auto nodeReader = NodeReader::getInstance();
        nodeReader->setPropsWithFlatBuffers(node, (Table*)options->nodeOptions());
    }
    
    Node* ParticleReader::createNodeWithFlatBuffers(const flatbuffers::Table *particleOptions)
    {
        ParticleSystemQuad* particle = nullptr;
        
        auto options = (ParticleSystemOptions*)particleOptions;
        auto fileNameDataDic = (options->fileNameData());
        
        bool fileExist = false;
        std::string errorFilePath;
        std::string path = fileNameDataDic->path()->c_str();
        int resourceType = fileNameDataDic->resourceType();
        switch (resourceType)
        {
            case 0:
            {
                if (FileUtils::getInstance()->isFileExist(path))
                {
                    fileExist = true;
                }
                else
                {
                    errorFilePath = path;
                    fileExist = false;
                }
                break;
            }
                
            default:
                break;
        }
        if (fileExist)
        {
            particle = ParticleSystemQuad::create(path);
            if (particle)
            {
                setPropsWithFlatBuffers(particle, (Table*)particleOptions);
                particle->setPositionType(ParticleSystem::PositionType::GROUPED);
            }
        }
        else
        {
            Node* node = Node::create();
            setPropsWithFlatBuffers(node, (Table*)particleOptions);
            return node;
        }
        
        return particle;
    }
    
}