Cocos2d-x 完美适配iphone、ipad(包括retina模式)

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Cocos2d-x 完美适配iphone、ipad(包括retina模式)@H_403_3@

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猴子原创,欢迎转载。转载请注明:@H_403_3@转载自Cocos2D开发网--Cocos2Dev.com@H_403_3@,谢谢!@H_403_3@@H_403_3@

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原文地址:http://www.Cocos2dev.com/?p=245@H_403_3@@H_403_3@@H_403_3@

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项目中需要同时适配iphone@H_403_3@和ipad@H_403_3@。美术提供的iphone@H_403_3@的图是640x960@H_403_3@的,ipad@H_403_3@的图是768x1024@H_403_3@的。发布的时候,项目肯定会分开发布iphone@H_403_3@版和ipad@H_403_3@版,但是开发过程中,我需要看到ipad@H_403_3@上的效果,所以开发过程中不可能分开。@H_403_3@@H_403_3@

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联想到高低清可以用-hd@H_403_3@后缀区分,我就想到将所有ipad@H_403_3@的768x1024@H_403_3@图后面全部加-ipad@H_403_3@后缀,程序中在ipad@H_403_3@上就让它加载-ipad@H_403_3@后缀的图。@H_403_3@@H_403_3@

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现在来看看我的实现:(主要模仿的-hd@H_403_3@的实现方式)@H_403_3@@H_403_3@

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1@H_403_3@、首先宏定义 -ipad@H_403_3@@H_403_3@@H_403_3@

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找到libs/Cocos2dx/include/ccConfig.h@H_403_3@,加入宏定义代码:@H_403_3@@H_403_3@

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#ifndef CC_IPAD_DISPLAY_FILENAME_SUFFIX

#define CC_IPAD_DISPLAY_FILENAME_SUFFIX  "-ipad"

#endif

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2@H_403_3@修改底层读取文件的地方,如果是ipad@H_403_3@设备就添加后缀-ipad@H_403_3@@H_403_3@@H_403_3@

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打开libs/Cocos2dx/platform/ios/CCFileUtils_ios.mm@H_403_3@文件@H_403_3@@H_403_3@

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找到下面函数,并做修改@H_403_3@@H_403_3@

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static const char *static_ccRemoveHDSuffixFromFile( const char *pszPath){

#if CC_IS_RETINA_DISPLAY_SUPPORTED

if(cocos2d::CC_CONTENT_SCALE_FACTOR() == 2 ) {

//........

}

//这里添加下面的代码支持ipad图片 ------开始--------

if( UI_USER_INTERFACE_IdioM() ==UIUserInterfaceIdiomPad){

NSString *path = [NSString stringWithUTF8String: pszPath];

NSString *name = [path lastPathComponent];

NSString *suffix = [NSString stringWithUTF8String: CC_IPAD_DISPLAY_FILENAME_SUFFIX];

// check if path already has the suffix.

if( [name rangeOfString: suffix].location != NSNotFound ) {

CCLOG("cocos2d: Filename(%@) contains %@ suffix. Removing it. See cocos2d issue #1040",path,CC_RETINA_DISPLAY_FILENAME_SUFFIX);

NSString *newLastname = [name stringByReplacingOccurrencesOfString: suffix withString:@""];

NSString *pathWithoutLastname = [path stringByDeletingLastPathComponent];

return [[pathWithoutLastname stringByAppendingPathComponent:newLastname] UTF8String];

}

}

//支持ipad图片 ------结束--------

#endif // CC_IS_RETINA_DISPLAY_SUPPORTED

};

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找到下面函数,并修改:@H_403_3@@H_403_3@

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static NSString* getDoubleResolutionImage(NSString* path)

{

#if CC_IS_RETINA_DISPLAY_SUPPORTED

 

if( cocos2d::CC_CONTENT_SCALE_FACTOR() == 2 )

{

//.......

}

//这里添加支持ipad图片。--------开始----------

if( UI_USER_INTERFACE_IdioM() ==UIUserInterfaceIdiomPad )

{

NSString *pathWithoutExtension = [path stringByDeletingPathExtension];

NSString *name = [pathWithoutExtension lastPathComponent];

NSString *suffix = [NSString stringWithUTF8String: CC_IPAD_DISPLAY_FILENAME_SUFFIX];

// check if path already has the suffix.

if( [name rangeOfString: suffix].location != NSNotFound ) {

CCLOG("cocos2d: WARNING Filename(%@) already has the suffix %@. Using it.",name,CC_RETINA_DISPLAY_FILENAME_SUFFIX);

return path;

}

NSString *extension = [path pathExtension];

if( [extension isEqualToString:@"ccz"] || [extension isEqualToString:@"gz"] )

{

// All ccz / gz files should be in the format filename.xxx.ccz

// so we need to pull off the .xxx part of the extension as well

extension = [NSString stringWithFormat:@"%@.%@",[pathWithoutExtension pathExtension],extension];

pathWithoutExtension = [pathWithoutExtension stringByDeletingPathExtension];

}

NSString *retinaName = [pathWithoutExtension stringByAppendingString: suffix];

retinaName = [retinaName stringByAppendingPathExtension:extension];

NSFileManager *fileManager = [[[NSFileManager alloc] init] autorelease];

if( [fileManager fileExistsAtPath:retinaName] )

return retinaName;

CCLOG("cocos2d: CCFileUtils: Warning HD file not found: %@",[retinaName lastPathComponent] );

}

//这里添加支持ipad图片。--------结束----------

#endif // CC_IS_RETINA_DISPLAY_SUPPORTED

return path;

}

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可能你注意到了,我只是修改了里面的宏定义,所以并不需要写两个函数,跋宏定义拿出来,修改下就可以。我为了不动引擎自己的代码,就在下面写了一份。@H_403_3@

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3@H_403_3@、将iOSApplication Target @H_403_3@中的Devices@H_403_3@改成Universal@H_403_3@。@H_403_3@

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4@H_403_3@、运行看看,如果你修改的是helloworld@H_403_3@工程,那么请将HelloWorld.png@H_403_3@复制一份,取名HelloWorld-ipad.png@H_403_3@,并将其尺寸改成1024x768@H_403_3@。这样iphone@H_403_3@和ipad@H_403_3@都可以运行了。都是全屏幕的哦。@H_403_3@

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5@H_403_3@、如果你开启了retina@H_403_3@。@H_403_3@

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ipad @H_403_3@的图不用修改。还是1024x768@H_403_3@的-ipad@H_403_3@图。但是iphone@H_403_3@的图请用960x640@H_403_3@的-hd@H_403_3@图。(其实只有一套iphone@H_403_3@的图的话,加不加-hd@H_403_3@都可以的。但尺寸要是960x640@H_403_3@的)@H_403_3@

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注:ipad@H_403_3@用的是ipad2@H_403_3@,没有ipad3@H_403_3@,所以ipad3@H_403_3@可能尺寸有问题。@H_403_3@

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