在 cocos2d 中使用哪个 EventDispatcher？ Node::EventDispatcher 还是 Director::EventDispatcher？

Question

在 cocos2d 中使用哪个 EventDispatcher？ Node::EventDispatcher 还是 Director::EventDispatcher？ 在参考了 Director class 和 Node class 的官方文档之后 Director Class Reference Cocos2d-x Node Class Reference Cocos2d-x 我有点困惑，使用

有什么区别

Director::getInstance()->getEventDispatcher() // consider this is used inside a class which is derived from Node class

或

this->getEventDispatcher() // consider this refers to a class derived from Node class

Answer 1

两者相同。 this->getEventDispatcher() 调用 CCNode 的 getEventDispatcher() 函数。它 returns _eventDispatcher.

_eventDispatcher = _director->getEventDispatcher(); // Check CCNode.cpp

所以这3个是一样的

Director::getInstance()->getEventDispatcher()->addEventListenerWith..

this->getEventDispatcher()->addEventListenerWith..

_eventDispatcher->addEventListenerWith..

注意：我刚刚检查了 Cocos2d-x 4.0