Composite sprite

[aoki-marika]

Need a CompositeSprite drawable that can draw multiples images from an atlas with one draw call, mainly for text.

Current API idea is like below:

CompositeSprite *sprite = new CompositeSprite();
sprite->SetAtlas(atlas);

CompositeSprite::Sprite sprites[] =
{
    {
        .X = 0,
        .Y = 0,
        .Image = “image”,
    },
    ...
};

sprite->SetSprites(sprites);

Each Sprite is auto sized to it’s image’s size. The sprites array may be a different type but oddly C arrays seems to be the best fit here.