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

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

 https://axmolengine.github.io/

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

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 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 THE SOFTWARE.
 ****************************************************************************/

#include "WidgetReader/ParticleReader/ParticleReader.h"

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

#include "flatbuffers/flatbuffers.h"

USING_NS_AX;
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 ParticleReader();
    }

    return _instanceParticleReader;
}

void ParticleReader::purge()
{
    AX_SAFE_DELETE(_instanceParticleReader);
}

void ParticleReader::destroyInstance()
{
    AX_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;

    ax::BlendFunc blendFunc = ax::BlendFunc::ALPHA_PREMULTIPLIED;

    // child elements
    auto child = objectData.first_child();
    while (child)
    {
        std::string_view name = child.name();

        if (name == "FileData")
        {
            auto attribute = child.first_attribute();

            while (attribute)
            {
                name              = attribute.name();
                std::string_view 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_view value = attribute.value();

                if (name == "Src")
                {
                    blendFunc.src = utils::toBackendBlendFactor(atoi(value.data()));
                }
                else if (name == "Dst")
                {
                    blendFunc.dst = utils::toBackendBlendFactor(atoi(value.data()));
                }

                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(ax::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)
    {
        ax::BlendFunc blendFunc = ax::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;
}

}  // namespace cocostudio