You may want to call a function by triggering some actions. For example, you are controlling the sequence action, jump, and move, and you want to use a sound for the jumping action. In this case, you can call a function by triggering this jump action. In this recipe, you will learn how to call a function with actions.
Cocos2d-x has the CallFunc object that allows you to create a function and pass it to be run in your Sequence. This allows you to add your own functionality to your Sequence action.
auto move = MoveBy::create(2.0f, Vec2(100, 0));
auto rotate = RotateBy::create(2.0f, 360.0f);
auto func = CallFunc::create([](){
CCLOG("finished actions");
});
auto action = Sequence::create(move, rotate, func, nullptr);
sprite->runAction(action);The preceding command will execute the following actions sequentially:
Move a sprite 100px to the right over two seconds
Rotate a sprite clockwise by 360 degrees over two seconds
Execute CCLOG