c++ - 我怎样才能让这个函数返回一个 sf::Texture？ SFML2.0

Question

void TileSheetManager::setTileSheet(const string textureName)
{
    texture.loadFromFile(textureName);
}

sf::Sprite TileSheetManager::getTile(int left, int top, int width, int height)
{

    sf::IntRect subRect;
    subRect.left = left * 32;
    subRect.top = top * 32;
    subRect.width = width;
    subRect.height = height;

    sf::Sprite sprite(texture, subRect);

    return sprite;
}

我需要 getTile() 来返回一个 sf::Texture 但我不知道该怎么做。
顺便说一下，我正在使用 SFML2.0。

Answer 1

根据文档here和 here你应该能够

sf::Image fullImage = texture.copyToImage();
sf::Image croppedImage(width, height);
croppedImage.copy(fullImage, 0, 0, subRect);
sf::Texture returnTexture();
returnTexture.LoadFromImage(croppedImage);