cocos2dx 直接修改 Texture 里面的数据 mark一下 updateWithData

在原来的图片上增加了一个小黄块  

  // add "HelloWorld" splash screen"

    auto sprite = Sprite::create("HelloWorld.png");     // position the sprite on the center of the screen     sprite->setPosition(Vec2(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y));     // add the sprite as a child to this layer     this->addChild(sprite, 0);     for (int i = 0; i < 16 * 16; i++)    redTest[i] = 0xFF00FFFF;     auto tex = sprite->getTexture();     tex->updateWithData(redTest, 0, 0, 16, 16);