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

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

 https://axys1.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
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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