axmol/tests/cpp-tests/Classes/ParallaxTest/ParallaxTest.cpp

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#include "ParallaxTest.h"
#include "../testResource.h"

USING_NS_CC;

enum
{
    kTagNode,
    kTagGrossini,
};

ParallaxTests::ParallaxTests()
{
    ADD_TEST_CASE(Parallax1);
    ADD_TEST_CASE(Parallax2);
    ADD_TEST_CASE(Issue2572);
}

//------------------------------------------------------------------
//
// Parallax1
//
//------------------------------------------------------------------

Parallax1::Parallax1()
{
    // Top Layer, a simple image
    auto cocosImage = Sprite::create(s_Power);
    // scale the image (optional)
    cocosImage->setScale(2.5f);
    // change the transform anchor point to 0,0 (optional)
    cocosImage->setAnchorPoint(Vec2(0, 0));

    // Middle layer: a Tile map atlas
    auto tilemap = TileMapAtlas::create(s_TilesPng, s_LevelMapTga, 16, 16);
    tilemap->releaseMap();

    // change the transform anchor to 0,0 (optional)
    tilemap->setAnchorPoint(Vec2(0, 0));

    // Anti Aliased images
    tilemap->getTexture()->setAntiAliasTexParameters();

    // background layer: another image
    auto background = Sprite::create(s_back);
    // scale the image (optional)
    background->setScale(1.5f);
    // change the transform anchor point (optional)
    background->setAnchorPoint(Vec2(0, 0));

    // create a void node, a parent node
    auto voidNode = ParallaxNode::create();

    // NOW add the 3 layers to the 'void' node

    // background image is moved at a ratio of 0.4x, 0.5y
    voidNode->addChild(background, -1, Vec2(0.4f, 0.5f), Vec2::ZERO);

    // tiles are moved at a ratio of 2.2x, 1.0y
    voidNode->addChild(tilemap, 1, Vec2(2.2f, 1.0f), Vec2(0, -200));

    // top image is moved at a ratio of 3.0x, 2.5y
    voidNode->addChild(cocosImage, 2, Vec2(3.0f, 2.5f), Vec2(200, 800));

    // now create some actions that will move the 'void' node
    // and the children of the 'void' node will move at different
    // speed, thus, simulation the 3D environment
    auto goUp   = MoveBy::create(4, Vec2(0, -500));
    auto goDown = goUp->reverse();
    auto go     = MoveBy::create(8, Vec2(-1000, 0));
    auto goBack = go->reverse();
    auto seq    = Sequence::create(goUp, go, goDown, goBack, nullptr);
    voidNode->runAction((RepeatForever::create(seq)));

    addChild(voidNode);
}

std::string Parallax1::title() const
{
    return "Parallax: parent and 3 children";
}

//------------------------------------------------------------------
//
// Parallax2
//
//------------------------------------------------------------------

Parallax2::Parallax2()
{
    auto listener            = EventListenerTouchAllAtOnce::create();
    listener->onTouchesMoved = CC_CALLBACK_2(Parallax2::onTouchesMoved, this);
    _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);

    // Top Layer, a simple image
    auto cocosImage = Sprite::create(s_Power);
    // scale the image (optional)
    cocosImage->setScale(2.5f);
    // change the transform anchor point to 0,0 (optional)
    cocosImage->setAnchorPoint(Vec2(0, 0));

    // Middle layer: a Tile map atlas
    auto tilemap = TileMapAtlas::create(s_TilesPng, s_LevelMapTga, 16, 16);
    tilemap->releaseMap();

    // change the transform anchor to 0,0 (optional)
    tilemap->setAnchorPoint(Vec2(0, 0));

    // Anti Aliased images
    tilemap->getTexture()->setAntiAliasTexParameters();

    // background layer: another image
    auto background = Sprite::create(s_back);
    // scale the image (optional)
    background->setScale(1.5f);
    // change the transform anchor point (optional)
    background->setAnchorPoint(Vec2(0, 0));

    // create a void node, a parent node
    auto voidNode = ParallaxNode::create();

    // NOW add the 3 layers to the 'void' node

    // background image is moved at a ratio of 0.4x, 0.5y
    voidNode->addChild(background, -1, Vec2(0.4f, 0.5f), Vec2::ZERO);

    // tiles are moved at a ratio of 1.0, 1.0y
    voidNode->addChild(tilemap, 1, Vec2(1.0f, 1.0f), Vec2(0, -200));

    // top image is moved at a ratio of 3.0x, 2.5y
    voidNode->addChild(cocosImage, 2, Vec2(3.0f, 2.5f), Vec2(200, 1000));
    addChild(voidNode, 0, kTagNode);
}

void Parallax2::onTouchesMoved(const std::vector<Touch*>& touches, Event* event)
{
    auto diff = touches[0]->getDelta();

    auto node       = getChildByTag(kTagNode);
    auto currentPos = node->getPosition();
    node->setPosition(currentPos + diff);
}

std::string Parallax2::title() const
{
    return "Parallax: drag screen";
}

//------------------------------------------------------------------
//
// Issue2572
//
//------------------------------------------------------------------
Issue2572::Issue2572() : _moveTimer(0.0f), _addTimer(0.0f), _preListSize(0), _printCount(0)
{
    _addChildStep  = 1.0f;
    _wholeMoveTime = 3.0f;
    _wholeMoveSize = Vec2(-300, 0);

    // create a parallax node, a parent node
    _paraNode = ParallaxNode::create();
    addChild(_paraNode, 0, kTagNode);

    this->scheduleUpdate();
}

void Issue2572::update(float dt)
{
    _addTimer += dt;
    _moveTimer += dt;
    if (_moveTimer >= _wholeMoveTime)
    {
        this->unscheduleUpdate();
        return;
    }

    _paraNode->setPosition(_paraNode->getPosition() + _wholeMoveSize * dt / _wholeMoveTime);

    if (_addTimer >= _addChildStep)
    {
        _addTimer = 0.0f;

        auto child    = Sprite::create("Images/Icon.png");
        Size viewSize = Director::getInstance()->getVisibleSize();
        Vec2 offset   = Vec2(viewSize.width / 2, viewSize.height / 2);
        _paraNode->addChild(child, 1, Vec2(1, 0), offset);

        _childList.pushBack(child);
    }

    // After a child added, output the position of the children 3 times.
    // Bug : The first output is much different with the second one & the third one.
    if (_childList.size() != _preListSize)
    {
        switch (_printCount)
        {
        case 0:
        case 1:
        case 2:
            log("--child count-- %zd", _childList.size());
            for (const auto& obj : _childList)
            {
                Sprite* obstacle = dynamic_cast<Sprite*>(obj);
                log("child position : (%.2f, %.2f)", obstacle->getPositionX(), obstacle->getPositionY());
            }
            log("-------------------");
            _printCount++;
            break;
        case 3:
            _preListSize = _childList.size();
            _printCount  = 0;
            break;
        default:
            break;
        }
    }
}

std::string Issue2572::title() const
{
    return "Issue 2572";
}

std::string Issue2572::subtitle() const
{
    return "Look at the output in console";
}