Applying Refactoring Technique: Introduce Parameter Object

[ManzanillaSebastian]

Within multiple methods of the Ball class, such as the constructor, we work with two parameters X and Y, which represent a location. Since both are conceptually related, we could encapsulate them in an object, such as Point. The advantages of applying this technique are: improved readability when using a Point object, since the purpose of the X and Y values ​​is clear; easy to change, since if the representation of the location needs to be modified (for example, using polar coordinates instead of cartesian), the change is centralized in Point.