cocos2d-x-3.x 场景(2)简单切换场景

首先建立一个新的类，把它称作ImageScene，放在Classes之中

然后这里贴一下代码：

头文件：

 1 ImageScene.h
 2 
 3 #include <iostream>
 4 #include <cocos2d.h>
 5 USING_NS_CC;
 6 
 7 class ImageScene :public Layer{
 8 public:
 9 virtual bool init();
10 static Scene* createScene();
11 CREATE_FUNC(ImageScene);
12 };

CPP：

 1 #include "ImageScene.h"
 2 
 3 
 4 Scene* ImageScene::createScene(){
 5 
 6 Scene* scene = Scene::create();
 7 
 8 ImageScene * layer = ImageScene::create();
 9 scene -> addChild(layer);
10 return scene;
11 }
12 
13 bool ImageScene::init(){
14 Size size = Director::getInstance()->getVisibleSize();
15 Sprite * s = Sprite::create("0840.png");    //此处()里的为切换后的图片场景文件
16 s->setPosition(size.width / 2, size.height / 2);    //此处设置位置
17 addChild(s);
18 return true;
19 }

然后呢，在HelloWorldScene.cpp中，老样子找到位置，详见操作(1)，该删除的删除掉。

然后添加代码段，这里展示添加完全的。

先介绍如何切换图片~轻轻点击就可以切换

 1 bool HelloWorld::init()
 2 {
 3 
 4 if (!Layer::init())
 5 {
 6 return false;
 7 }
 8 
 9 Size visibleSize = Director::getInstance()->getVisibleSize();
10 Vec2 origin = Director::getInstance()->getVisibleOrigin();
11 
12 Sprite * label = Sprite::create("0842.png");    //设置前一个场景的图片，()里为图片文件名
13 label->setPosition(visibleSize.width/2,visibleSize.height/2);    //设置位置
14 addChild(label);    //加入图层
15 label->setPosition(visibleSize.width / 2, visibleSize.height / 2);
16 EventListenerTouchOneByOne *listener = EventListenerTouchOneByOne::create();
17 listener->onTouchBegan = [label](Touch *t, Event *e){
18 if (label->getBoundingBox().containsPoint(t->getLocation())){
19 Director::getInstance()->replaceScene(ImageScene::createScene());
20 }
21 return false;
22 };
23 Director::getInstance()->getEventDispatcher()->
24 addEventListenerWithSceneGraphPriority(listener, label);
25 
26 return true;
27 }

这里介绍如何由文字到图片切换

 1 bool HelloWorld::init()
 2 {
 3 
 4 if (!Layer::init())
 5 {
 6 return false;
 7 }
 8 
 9 Size visibleSize = Director::getInstance()->getVisibleSize();
10 Vec2 origin = Director::getInstance()->getVisibleOrigin();
11 
12 LabelTTF *label = LabelTTF::create("show the next scene", "Andalus", 20);    //设置显示文字，第二个为字体，随意选，第三个为字号。
13 addChild(label);    //把这个加入图层
14 label->setPosition(visibleSize.width / 2, visibleSize.height / 2);
15 EventListenerTouchOneByOne *listener = EventListenerTouchOneByOne::create();
16 listener->onTouchBegan = [label](Touch *t, Event *e){
17 if (label->getBoundingBox().containsPoint(t->getLocation())){
18 Director::getInstance()->replaceScene(ImageScene::createScene());
19 }
20 return false;
21 };
22 Director::getInstance()->getEventDispatcher()->
23 addEventListenerWithSceneGraphPriority(listener, label);
24 
25 return true;
26 }

然后，至于其他的，比如文字转文字，图片转文字，稍微修改一下就可以了~

posted on 2015-12-05 20:55 四月厨阅读(258) 评论(0) 编辑收藏举报