Layer* restartZwoptexTest()
{
    auto layer = createZwoptexLayer(sceneIdx);
    layer->autorelease();

    return layer;
} 
CCLayer* restartZwoptexTest()
{
    CCLayer* pLayer = createZwoptexLayer(sceneIdx);
    pLayer->autorelease();

    return pLayer;
} 
Layer* nextZwoptexTest()
{
    sceneIdx++;
    sceneIdx = sceneIdx % MAX_LAYER;

    auto layer = createZwoptexLayer(sceneIdx);
    layer->autorelease();

    return layer;
}
Layer* backZwoptexTest()
{
    sceneIdx--;
    int total = MAX_LAYER;
    if( sceneIdx < 0 )
        sceneIdx += total;    

    auto layer = createZwoptexLayer(sceneIdx);
    layer->autorelease();

    return layer;
}