Method SpriteBatchNodeZVertex

tests/cpp-tests/Source/SpriteTest/SpriteTest.cpp:1065–1122

}

SpriteBatchNodeZVertex::SpriteBatchNodeZVertex()
{
    //
    // This test tests z-order
    // If you are going to use it is better to use a 3D projection
    //
    // WARNING:
    // The developer is responsible for ordering its sprites according to its Z if the sprite has
    // transparent parts.
    //

    //
    // Configure shader to mimic glAlphaTest
    //
    //    auto alphaTestShader =
    //    GLProgramCache::getInstance()->getGLProgram(GLProgram::SHADER_NAME_POSITION_TEXTURE_ALPHA_TEST); GLint
    //    alphaValueLocation = glGetUniformLocation(alphaTestShader->getProgram(),
    //    GLProgram::UNIFORM_NAME_ALPHA_TEST_VALUE);

    // set alpha test value
    // NOTE: alpha test shader is hard-coded to use the equivalent of a glAlphaFunc(GL_GREATER) comparison
    //    if (getGLProgram())
    //    {
    //        getGLProgram()->setUniformLocationWith1f(alphaValueLocation, 0.0f);
    //    }

    auto s     = Director::getInstance()->getWinSize();
    float step = s.width / 12;

    // small capacity. Testing resizing.
    // Don't use capacity=1 in your real game. It is expensive to resize the capacity
    auto batch = SpriteBatchNode::create("Images/grossini_dance_atlas.png", 1);
    // camera uses the center of the image as the pivoting point
    batch->setContentSize(Size(s.width, s.height));
    batch->setAnchorPoint(Vec2::ANCHOR_MIDDLE);
    batch->setPosition(Vec2(s.width / 2, s.height / 2));

    //    batch->setGLProgram(alphaTestShader);
    addChild(batch, 0, kTagSpriteBatchNode);

    for (int i = 0; i < 5; i++)
    {
        auto sprite = Sprite::createWithTexture(batch->getTexture(), Rect(85 * 0, 121 * 1, 85, 121));
        sprite->setPosition(Vec2((i + 1) * step, s.height / 2));
        sprite->setPositionZ(10 + i * 40);
        batch->addChild(sprite, 0);
    }

    for (int i = 5; i < 11; i++)
    {
        auto sprite = Sprite::createWithTexture(batch->getTexture(), Rect(85 * 1, 121 * 0, 85, 121));
        sprite->setPosition(Vec2((i + 1) * step, s.height / 2));
        sprite->setPositionZ(10 + (10 - i) * 40);
        batch->addChild(sprite, 0);
    }

    batch->runAction(OrbitCamera::create(10, 1, 0, 0, 360, 0, 0));
}