just smooth and fun (25/05/2024: now usefull !) change the x and y values on the top
an old project idea (-:P I do this project at the beginning of my 10th class year and I updated it the 25/05/2024 at the end of my 11th year class to calculate the different lenght automatically by using the vectorial addition Lets wait one year more to learn how to calculate the different angles
