天空盒和相机01

.h文件：

#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"

class HelloWorld : public cocos2d::Layer
{
public:
    static cocos2d::Scene* createScene();

    virtual bool init();
	void onTouchesMoved(const std::vector<cocos2d::Touch*>& touches, cocos2d::Event* event);
    // a selector callback
    void menuCloseCallback(cocos2d::Ref* pSender);
protected:
	cocos2d::Camera*  _camera;
	cocos2d::Terrain* _terrain;
    // implement the "static create()" method manually
    CREATE_FUNC(HelloWorld);
};

#endif // __HELLOWORLD_SCENE_H__

.cpp文件：

#include "HelloWorldScene.h"

USING_NS_CC;

Scene* HelloWorld::createScene()
{
    // 'scene' is an autorelease object
    auto scene = Scene::create();
    
    // 'layer' is an autorelease object
    auto layer = HelloWorld::create();

    // add layer as a child to scene
    scene->addChild(layer);

    // return the scene
    return scene;
}

// on "init" you need to initialize your instance
bool HelloWorld::init()
{
    //////////////////////////////
    // 1. super init first
    if ( !Layer::init() )
    {
        return false;
    }
    
    Size visibleSize = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();

    /////////////////////////////
    // 2. add a menu item with "X" image, which is clicked to quit the program
    //    you may modify it.

    // add a "close" icon to exit the progress. it's an autorelease object
    auto closeItem = MenuItemImage::create(
                                           "CloseNormal.png",
                                           "CloseSelected.png",
                                           CC_CALLBACK_1(HelloWorld::menuCloseCallback, this));
    
	closeItem->setPosition(Vec2(origin.x + visibleSize.width - closeItem->getContentSize().width/2 ,
                                origin.y + closeItem->getContentSize().height/2));

    // create menu, it's an autorelease object
    auto menu = Menu::create(closeItem, NULL);
    menu->setPosition(Vec2::ZERO);
    this->addChild(menu, 1);

    /////////////////////////////
    // 3. add your codes below...

    // add a label shows "Hello World"
    // create and initialize a label
    
    auto label = Label::createWithTTF("Hello World", "fonts/Marker Felt.ttf", 24);
    
    // position the label on the center of the screen
    label->setPosition(Vec2(origin.x + visibleSize.width/2,
                            origin.y + visibleSize.height - label->getContentSize().height));

    // add the label as a child to this layer
    this->addChild(label, 1);

    // add "HelloWorld" splash screen"
   // auto sprite = Sprite::create("HelloWorld.png");

    // position the sprite on the center of the screen
   // sprite->setPosition(Vec2(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y));

    // add the sprite as a child to this layer
   // this->addChild(sprite, 0);
	//Size visibleSize = Director::getInstance()->getVisibleSize();

	//use custom camera
	_camera = Camera::createPerspective(60, visibleSize.width / visibleSize.height, 0.1f, 800);
	_camera->setCameraFlag(CameraFlag::USER1);
	_camera->setPosition3D(Vec3(-1, 1.6f, 4));
	addChild(_camera);

	Terrain::DetailMap r("TerrainTest/dirt.jpg"), g("TerrainTest/Grass2.jpg"), b("TerrainTest/GreenSkin.jpg"), a("TerrainTest/road.jpg");//TerrainTest/GreenSkin.jpg

	Terrain::TerrainData data("TerrainTest/heightmap16.jpg", "TerrainTest/alphamap.png", r, g, b, a);

	_terrain = Terrain::create(data, Terrain::CrackFixedType::SKIRT);
	_terrain->setLODDistance(3.2f, 6.4f, 9.6f);
	_terrain->setMaxDetailMapAmount(4);
	addChild(_terrain);
	_terrain->setCameraMask(2);
	_terrain->setDrawWire(false);
	_terrain->setLightMap("TerrainTest/Lightmap.png");
	auto listener = EventListenerTouchAllAtOnce::create();
	listener->onTouchesMoved = CC_CALLBACK_2(HelloWorld::onTouchesMoved, this);
	_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);

    return true;
}

void HelloWorld::onTouchesMoved(const std::vector<cocos2d::Touch*>& touches, cocos2d::Event* event)
{
	float delta = Director::getInstance()->getDeltaTime();
	auto touch = touches[0];
	auto location = touch->getLocation();
	auto PreviousLocation = touch->getPreviousLocation();
	Point newPos = PreviousLocation - location;

	Vec3 cameraDir;
	Vec3 cameraRightDir;
	_camera->getNodeToWorldTransform().getForwardVector(&cameraDir);
	cameraDir.normalize();
	cameraDir.y = 0;
	_camera->getNodeToWorldTransform().getRightVector(&cameraRightDir);
	cameraRightDir.normalize();
	cameraRightDir.y = 0;
	Vec3 cameraPos = _camera->getPosition3D();
	cameraPos += cameraDir*newPos.y*0.5*delta;
	cameraPos += cameraRightDir*newPos.x*0.5*delta;
	_camera->setPosition3D(cameraPos);
}



void HelloWorld::menuCloseCallback(Ref* pSender)
{
    Director::getInstance()->end();

#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
    exit(0);
#endif
}

效果：