It took me months to solve but I fixed the above program big time. On top of the updates I mentioned in the first post on the bottom, most importantly eliminating the jittery movement of the sprite, I also improved how the sprite moves node to node. A total change has been done to the AStar following code. It constantly moves the speed given. The interpolation has been removed because it wont take certain values, mostly being the decimal values, and its not as consistant as my new code. Now you can have the sprite move at literally any speed chosen. Enjoy the new program, and I strongly recommend this to anyone designing a game where chasing is involved. Also I strongly recommend you update the old A* code with this new one due to the majority of the issues I have had.