本文整理汇总了C++中UIElement::changeAlpha方法的典型用法代码示例。如果您正苦于以下问题：C++ UIElement::changeAlpha方法的具体用法？C++ UIElement::changeAlpha怎么用？C++ UIElement::changeAlpha使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类UIElement的用法示例。
在下文中一共展示了UIElement::changeAlpha方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: createUIElements
void GameWinScene::createUIElements()
{
UIElement* element = new UIElement(UI_TYPE::BUTTON, GameConstants::WINDOW_CENTRE, Vector2D(50, 50), ">You Win!\nPress A to return to \n Main Menu<", "exit2");
element->setAlpha(0);
element->setAppear([element](float dt){ element->changeAlpha(510 * dt); });
element->setAppearCondition([element](float dt)->bool{ return element->testAlpha(255, 255 * dt); });
element->setDisappear([element](float dt){ element->changeAlpha(-510 * dt); });
element->setDisappearCondition([element](float dt)->bool{ return element->testAlpha(0, -255 * dt); });
element->setSize(150);
m_menu.addElement(element);
}示例2: createUIElements
void PauseScene::createUIElements()
{
UIElement* element = new UIElement(UI_TYPE::BUTTON, Vector2D(GameConstants::WINDOW_CENTRE.x, 150), Vector2D(50, 50), ">RESUME<", "exit2");
element->setFunctionality([&](){ m_resume(); });
element->setAlpha(0);
element->setAppear([element](float dt){ element->changeAlpha(510 * dt); });
element->setAppearCondition([element](float dt)->bool{ return element->testAlpha(255, 255 * dt); });
element->setDisappear([element](float dt){ element->changeAlpha(-510 * dt); });
element->setDisappearCondition([element](float dt)->bool{ return element->testAlpha(0, -255 * dt); });
element->setSize(150);
m_menu.addElement(element);
element = new UIElement(UI_TYPE::BUTTON, Vector2D(GameConstants::WINDOW_CENTRE.x - 170, 320), Vector2D(50, 50), ">RESET<", "options2");
element->setFunctionality([&](){
SceneManager::getInstance()->switchTo(Scenes::MAINMENU); SceneManager::getInstance()->switchTo(Scenes::GAME); });
element->setAlpha(0);
element->setAppear([element](float dt){ element->changeAlpha(510 * dt); });
element->setAppearCondition([element](float dt)->bool{ return element->testAlpha(255, 255 * dt); });
element->setDisappear([element](float dt){ element->changeAlpha(-510 * dt); });
element->setDisappearCondition([element](float dt)->bool{ return element->testAlpha(0, -255 * dt); });
element->setSize(150);
m_menu.addElement(element);
element = new UIElement(UI_TYPE::BUTTON, Vector2D(GameConstants::WINDOW_CENTRE.x, 490), Vector2D(50, 50), ">EXIT<", "help2");
element->setFunctionality([element](){ SceneManager::getInstance()->switchTo(Scenes::MAINMENU); });
element->setAlpha(0);
element->setAppear([element](float dt){ element->changeAlpha(510 * dt); });
element->setAppearCondition([element](float dt)->bool{ return element->testAlpha(255, 255 * dt); });
element->setDisappear([element](float dt){ element->changeAlpha(-510 * dt); });
element->setDisappearCondition([element](float dt)->bool{ return element->testAlpha(0, -255 * dt); });
element->setSize(150);
m_menu.addElement(element);
m_menu.setEnd();
}