Cocos2d-x 2.x versus 3.x, cocos2d-x2.x

Cocos2d-x 2.x versus 3.x, cocos2d-x2.x

Common class name changes in Cocos2d-x

In the following table, the class name is converted to delete the CC prefix directly.

Cocos2d-x class name change

The conversion of class names in the following table is relatively large.

CCString usage change

Before:

1	CCString* str = CCString::createWithFormat("%s.png","picture");

Now:

1	std::string str = StringUtils::format("%s.png","picture");

CCDictinoary usage change

Before:

12	CCDictionary* dict = CCDictionary::createWithContentsOfFile("name.plist");CCArray* arr = (CCArray*) data->objectForKey("Levels");

Now:

123	std::string path = FileUtils::getInstance()->fullPathForFilename("name.plist");ValueMap dict = FileUtils::getInstance()->getValueMapFromFile(path);ValueVector arrLevels = data.at("Levels").asValueVector();

CCArray usage change

Here is the standard usage of the C ++ vector container.

The following information comes from here.

Touch usage change

Usage change of Singleton class

CCTime usage change

CCTime has been deleted in Cocos2d-x v3.

Example:

1234	static inline float getTimeDifferenceMS(timeval& start, timeval& end){    return ((((end.tv_sec - start.tv_sec)*1000.0f + end.tv_usec) - start.tv_usec) / 1000.0f);}