Function GetSpriteCountForFile

src/spritecache.cpp:176–192

* Count the sprites which originate from a specific file in a range of SpriteIDs. * @param file The loaded SpriteFile. * @param begin First sprite in range. * @param end First sprite not in range. * @return Number of sprites. */

 * @return Number of sprites.
 */
uint GetSpriteCountForFile(const std::string &filename, SpriteID begin, SpriteID end)
{
	SpriteFile *file = GetCachedSpriteFileByName(filename);
	if (file == nullptr) return 0;

	uint count = 0;
	for (SpriteID i = begin; i != end; i++) {
		if (SpriteExists(i)) {
			SpriteCache *sc = GetSpriteCache(i);
			if (sc->file == file) {
				count++;
				Debug(sprite, 4, "Sprite: {}", i);
			}
		}
	}
	return count;
}

/**
 * Get a reasonable (upper bound) estimate of the maximum