如何在createWithSpriteFrameName中使用动态精灵名称？(How to use dynamic sprite names with createWithSpriteFrameNam

如何在createWithSpriteFrameName中使用动态精灵名称？(How to use dynamic sprite names with createWithSpriteFrameName?)

我想根据Cocos2d-x和C ++中的一些动态变量更改精灵图像，所以我尝试这样的东西，但是有一个错误。 这可能是一种正确的方法吗？ 问候。

auto name = String::createWithFormat("x%i.png", _destroyedUnits); auto combo = Sprite::createWithSpriteFrameName(name);

我已经看到createWithSpriteFrameName接受C ++ basic_string，而不是Cocos String，所以我创建了这样的输出是“名字是：??”

int _destroyedUnits = 20; std::string intToString = std::to_string(_destroyedUnits); std::string name("x" + intToString); CCLOG("The name is: %s", name);

什么是正确的方法呢？ 问候。

I want to change a sprite image according to some dynamic variable in Cocos2d-x and C++, so I'm, trying something like this but there is an error. What could it be a right way to do it?. Greetings.

auto name = String::createWithFormat("x%i.png", _destroyedUnits); auto combo = Sprite::createWithSpriteFrameName(name);

I've seen that createWithSpriteFrameName accept a C++ basic_string, not a Cocos String, so I created like this and the output is "The name is: ??"

int _destroyedUnits = 20; std::string intToString = std::to_string(_destroyedUnits); std::string name("x" + intToString); CCLOG("The name is: %s", name);

What's the right way to do it? Greetings.

最满意答案

正如cocos2d-x测试中所建议的那样，正确的方法是使用sprintf，你可以像这样使用它：

char tmp[30]; sprintf(tmp,"x%i.png", _destroyedUnits); std::string atlasName = tmp; auto combo = Sprite::createWithSpriteFrameName(atlasName.c_str());

As suggested in cocos2d-x tests, the right way is to use sprintf, you can use it like this:

char tmp[30]; sprintf(tmp,"x%i.png", _destroyedUnits); std::string atlasName = tmp; auto combo = Sprite::createWithSpriteFrameName(atlasName.c_str());