The LetterAnimatedTextField class is a neat widget that enables animation of text, letter by letter.
There are three types of motion to choose from: JUMP , RECT_XFIRST, RECT _YFIRST. JUMP is a straight path with the distance being diminished by a fraction each frame. RECT _XFIRST stands for moving first by x-axis, then by y-axis (rectangular) with constant velocity. In RECT _YFIRST, y-axis motion is first.
LetterAnimatedTextField is a subclass of TextField. To use it, create an instance of it and manipulate its properties.