Sprite frame library for AnimatedSprite. Sprite frame library for [AnimatedSprite]. Contains frames and animation data for playback. Adds a new animation to the library. Adds a frame to the given animation. Removes all frames from the given animation. Removes all animations. A "default" animation will be created. If [code]true[/code] the given animation will loop. The animation's speed in frames per second. Returns the animation's selected frame. Returns the number of frames in the animation. If [code]true[/code] the named animation exists. Removes the given animation. Removes the animation's selected frame. Changes the animation's name to [code]newname[/code]. If [code]true[/code] the animation will loop. The animation's speed in frames per second. Sets the texture of the given frame.