COCOS2D-X:比例精灵 [英] COCOS2D-X: scale sprite

问题描述

我想通过原始图像的高度设置精灵的比例.然后，该精灵的宽度将跟随该图像的原始比例.我怎样才能做到这一点.感谢您的所有帮助.

I want to set scale for a sprite by height of original image. And then the width of that sprite will follow by original ratio of that image. How can i do that. Thank for all your help.

推荐答案

CCSprite具有成员函数

CCSprite has a member function

virtual void setScale(float scale)      

参考: setScale

只需创建一个精灵，然后调用此函数即可.

Just create a sprite, and call this function.

CCSprite* bg = CCSprite::create("background.png");
this->addChild(bg,0);
bg->setScale(2.0);

bg精灵会比原始精灵大两倍.

bg sprite will be twice bigger than the origin one.

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