鼠标事件

就像前几节介绍的那样，Cocos2d-x 支持响应鼠标事件

创建鼠标事件监听器：

  1. _mouseListener = EventListenerMouse::create();
  2. _mouseListener->onMouseMove = CC_CALLBACK_1(MouseTest::onMouseMove, this);
  3. _mouseListener->onMouseUp = CC_CALLBACK_1(MouseTest::onMouseUp, this);
  4. _mouseListener->onMouseDown = CC_CALLBACK_1(MouseTest::onMouseDown, this);
  5. _mouseListener->onMouseScroll = CC_CALLBACK_1(MouseTest::onMouseScroll, this);
  7. _eventDispatcher->addEventListenerWithSceneGraphPriority(_mouseListener, this);
  9. void MouseTest::onMouseDown(Event *event)
  10. {
  11.     // to illustrate the event....
  12.     EventMouse* e = (EventMouse*)event;
  13.     string str = "Mouse Down detected, Key: ";
  14.     str += tostr(e->getMouseButton());
  15. }
  17. void MouseTest::onMouseUp(Event *event)
  18. {
  19.     // to illustrate the event....
  20.     EventMouse* e = (EventMouse*)event;
  21.     string str = "Mouse Up detected, Key: ";
  22.     str += tostr(e->getMouseButton());
  23. }
  25. void MouseTest::onMouseMove(Event *event)
  26. {
  27.     // to illustrate the event....
  28.     EventMouse* e = (EventMouse*)event;
  29.     string str = "MousePosition X:";
  30.     str = str + tostr(e->getCursorX()) + " Y:" + tostr(e->getCursorY());
  31. }
  33. void MouseTest::onMouseScroll(Event *event)
  34. {
  35.     // to illustrate the event....
  36.     EventMouse* e = (EventMouse*)event;
  37.     string str = "Mouse Scroll detected, X: ";
  38.     str = str + tostr(e->getScrollX()) + " Y: " + tostr(e->getScrollY());
  39. }