如果做了一个游戏
并且AppDelegate中没有进行适配的
制作时窗口的大小设定为eglView->setFrameSize(1024,728);
然后想把该程序移植到其他窗口大小不为(1024,728)的设备上
做法如下
把层CCLayer 换成 CCSprite
设置该精灵的大小this->setContentSize(CCSize(1024,728));
默认的锚点是(0.5,0.5)
位置默认是(0,0)
这时画面就根据原点(0,0)布置
然后就是获取当前的界面大小,设置该精灵位置为界面的中间
this->setPosition(ccp(origin.x + visibleSize.width/2,origin.y + visibleSize.height / 2));
这样设置之后无论移植到什么窗口大小的平台上都是居中显示
当是这样无法让该素材适应所有屏幕,可能会太大,可能会太小. 如果不想用全适应的话,就应该用根据宽或根据高适应.
如果确定是根据宽还是根据高适应呢?
首先得到屏幕的长宽比currentAspectRatio和你现在开发游戏时原始长宽比originalAspectRatio。
if(currentAspectRatio>originalAspectRatio) 采用根据高度自适应
if(currentAspectRatio<originalAspectRatio) 采用根据宽度自适应
下面附上demo
#include "AppDelegate.h"
#include "HelloWorldScene.h"
USING_NS_CC;
CCSize frameSize(1200,300);
CCSize resolutionSize(1000,800);
AppDelegate::AppDelegate() {
}
AppDelegate::~AppDelegate()
{
}
bool AppDelegate::applicationDidFinishLaunching() {
// initialize director
CCDirector* pDirector = CCDirector::sharedDirector();
CCEGLView* pEGLView = CCEGLView::sharedOpenGLView();
pEGLView->setFrameSize(frameSize.width,frameSize.height);
pDirector->setOpenGLView(pEGLView);
float currentAspectRatio = pDirector->getWinSize().width/pDirector->getWinSize().height;
float originalAspectRatio = resolutionSize.width/resolutionSize.height;
if(currentAspectRatio>originalAspectRatio)//采用根据宽度自适应
{
pEGLView->setDesignResolutionSize(resolutionSize.width,resolutionSize.height,kResolutionFixedHeight );
}
if(currentAspectRatio<=originalAspectRatio)// 采用根据长度自适应
{
pEGLView->setDesignResolutionSize(resolutionSize.width,kResolutionFixedWidth );
}
// turn on display FPS
pDirector->setDisplayStats(true);
// set FPS. the default value is 1.0/60 if you don't call this
pDirector->setAnimationInterval(1.0 / 60);
// create a scene. it's an autorelease object
CCScene *pScene = HelloWorld::scene();
// run
pDirector->runWithScene(pScene);
return true;
}
// This function will be called when the app is inactive. When comes a phone call,it's be invoked too
void AppDelegate::applicationDidEnterBackground() {
CCDirector::sharedDirector()->stopAnimation();
// if you use SimpleAudioEngine,it must be pause
// SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic();
}
// this function will be called when the app is active again
void AppDelegate::applicationWillEnterForeground() {
CCDirector::sharedDirector()->startAnimation();
// if you use SimpleAudioEngine,it must resume here
// SimpleAudioEngine::sharedEngine()->resumeBackgroundMusic();
}
#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__
#include "cocos2d.h"
USING_NS_CC;
#define Point(x,y) stransforPosition(CCPoint(x,y))
extern CCSize FrameSize;
extern CCSize resolutionSize;
class HelloWorld : public cocos2d::CCSprite
{
public:
// Here's a difference. Method 'init' in cocos2d-x returns bool,instead of returning 'id' in cocos2d-iphone
virtual bool init();
// there's no 'id' in cpp,so we recommend returning the class instance pointer
static cocos2d::CCScene* scene();
// a selector callback
void menuCloseCallback(CCObject* pSender);
// implement the "static node()" method manually
CREATE_FUNC(HelloWorld);
float m_currentAndOrignalRatioX;
float m_currentAndOrignalRatioY;
cocos2d::CCPoint stransforPosition(cocos2d::CCPoint& pos)
{
cocos2d::CCPoint _point = pos-resolutionSize/2;
CCEGLView* pEGLView = CCEGLView::sharedOpenGLView();
cocos2d::CCPoint _offset;
switch (pEGLView->getResolutionPolicy())
{
case kResolutionFixedHeight:
{
_offset = CCPoint (_point.x/m_currentAndOrignalRatioY*m_currentAndOrignalRatioX,_point.y );
break;
}
case kResolutionFixedWidth:
{
_offset =CCPoint (_point.x,_point.y/m_currentAndOrignalRatioX*m_currentAndOrignalRatioY );
break;
}
default:
break;
}
return (resolutionSize/2 +_offset );
//return pos;
}
// {
//CCSprite::setPosition(CCPoint(pos.x*m_currentAndOrignalRatioX,pos.y*m_currentAndOrignalRatioY));
//}
};
#endif // __HELLOWORLD_SCENE_H__
#include "HelloWorldScene.h"
CCScene* HelloWorld::scene()
{
// 'scene' is an autorelease object
CCScene *scene = CCScene::create();
// 'layer' is an autorelease object
HelloWorld *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 ( !CCSprite::init() )
{
return false;
}
CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();
CCPoint origin = CCDirector::sharedDirector()->getVisibleOrigin();
CCEGLView* pEGLView = CCEGLView::sharedOpenGLView();
pEGLView->getFrameSize();
CCSize _winSize = pEGLView->getFrameSize();
m_currentAndOrignalRatioX = _winSize.width/resolutionSize.width;
m_currentAndOrignalRatioY = _winSize.height/resolutionSize.height;
this->setContentSize(resolutionSize);
this->setPosition(ccp(origin.x + visibleSize.width/2,origin.y + visibleSize.height / 2));
/////////////////////////////
// 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
// add "HelloWorld" splash screen"
CCSprite* pSprite = CCSprite::create("HelloWorld.png");
// position the sprite on the center of the screen
pSprite->setPosition((Point(500,400)));
// add the sprite as a child to this layer
this->addChild(pSprite,0);
for (int i = 0; i < 11; i++)
{
CCSprite* _sp = CCSprite::create("CloseNormal.png");
_sp->setPosition((Point(i*100,800/2)));
this->addChild(_sp);
}
for (int i = 0; i < 9; i++)
{
CCSprite* _sp = CCSprite::create("CloseNormal.png");
_sp->setPosition((Point(1000/2,i*100)));
this->addChild(_sp);
}
return true;
}
void HelloWorld::menuCloseCallback(CCObject* pSender)
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT) || (CC_TARGET_PLATFORM == CC_PLATFORM_WP8)
CCMessageBox("You pressed the close button. Windows Store Apps do not implement a close button.","Alert");
#else
CCDirector::sharedDirector()->end();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
exit(0);
#endif
#endif
}
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