Effects of scene transitions

Add the code in the last scene switch and a picture in res as a picture in the first scene

HelloWorldScene.cpp in the

BOOL Helloworld::init ()

{

//////////////////////////////

1. Super Init first

if (! Layer::init ())

{

return false;

}

/**

* The following code implements the purpose of switching scenes,

* When clicking on the font in the text box, toggle the scene, there are pictures

*/

Get the size of the visible area

Size visiblesize = director::getinstance ()->getvisiblesize ();

Add a picture in the first scene to be able to see the effect when the scene transitions

Sprite *BG = sprite::create ("bird.jpg");

Bg->setposition (Point (VISIBLESIZE.WIDTH/2, VISIBLESIZE.HEIGHT/2));

AddChild (BG);

Add text box, text content, font type, font size

Labelttf *label = Labelttf::create ("Show Next Scene", "Courier", 36);

AddChild (label);//Add text to the layer

Put text in the middle

Label->setposition (VISIBLESIZE.WIDTH/2, VISIBLESIZE.HEIGHT/2);

Set up event listeners for label

1. Creating listeners

Eventlistenertouchonebyone *listener = Eventlistenertouchonebyone::create ();

2. Let Listener->ontouchbegan point to a closure function to execute

[Capture label Variable]

Listener->ontouchbegan = [Label] (Touch *t, Event *e) {

Judge the,label-> boundary. Includes (touch point), indicating that the click is a label, then a new scene is executed

if (Label->getboundingbox (). Containspoint (T->getlocation ())) {

Run the newly created scene

Director::getinstance ()->replacescene (Imagescene::createscene ());

Set the effect of scene transitions and the scene disappears after 1 seconds

Director::getinstance ()->replacescene (transitionfadebl::create (1, Imagescene::createscene ()));

}

return false;

};

3. Adding event listeners

Parameters (Listener, node is the node to listen on)

Director::getinstance ()->geteventdispatcher ()->addeventlistenerwithscenegraphpriority (listener, label);

return true;

}

Effects of scene transitions