cocosのui::Button で一つの画像を使って透過で押すのと押さないのを判断させるコード

ButtonTransparent.cpp

//#include "ui/CocosGUI.h"
auto button = ui::Button::create(ButtonFileName, "");
button->addTouchEventListener([button](Ref* pSender, cocos2d::ui::Widget::TouchEventType type){
	switch (type){
	case ui::Widget::TouchEventType::BEGAN:
	//Write Process
		button->setOpacity(255);
		break;
	case ui::Widget::TouchEventType::ENDED:
	case ui::Widget::TouchEventType::CANCELED:
	//Write Process
		button->setOpacity(100);
		break;		
	}
});
button->setOpacity(100);
this->addchild(button);