/**
* @brief Retrieves a unique font identifier for a given bitmap font.
+ * If the font is not present, it will cache the given font, and give it a new font id.
*
* @param[in] bitmapFont A bitmap font.
*
- * @return A valid font identifier, or zero if no bitmap font is created.
+ * @return A valid font identifier.
*/
FontId GetFontId(const BitmapFont& bitmapFont);