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. Returns an array containing the names associated to each animation. Values are placed in alphabetical order. 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.