UML,java,inheritance,polymorphism, please explain in detail

You are currently working on a content patch for "World of Wolfcraft" and you will be adding in two new playable types. Werewolf and Vampire, the goal is to reuse the functionality already defined in the current game and not change too much. If a significant change is r necessary that you can rationalise why your solution would be better for maintenance. Animal - hp: int - maxHP: int -xy: int[] +move(xAxis:double, yAxis:double): void +attack(target: Animal): void +Levelup(): void +setHP (hp:int) : void +getHP(): int +set Coordinates (xy: int[]); void +getCoordinates(): int[] Human -armour: String -name: String +move(xAxis:double, yAxis:double): void +attack(target: Animal): void +levelup(): void +addArmour(armour:String): void +removeArmour(idx:int) : void +getArmour(): List +getName(): String Canine - furColour: String +move(xAxis: double, yAxis:double): void +attack(target: Animal): void +levelup(): void +howl(): void +setColour(colour:String): void +getColour(): String Bat - furColour: String +move(xAxis:double, yAxis:double): void +attack(target:Animal): void +levelup(): void +setColour(colour:String): void +getColour(): String +fly(): void Wolf Dog -name: String +move(xAxis: double, yAxis: double): void +attack(target: Animal): void +levelup(): void +howl(): void +getName(): String +setName (name: String): void +move (xAxis: double, yAxis:double): void +attack(target:Animal): void +levelup(): void +howl(): void +hunt(target : Animal): void Figure 3: World of Wolfcraft UML Diagram Discuss how inheritance have been used within the diagram with your peers, what methods and attributes are accessible by subclasses and potentially reused. Why would integrating the two new classes, Werewolf and Vampire be difficult with the cur- rent structure? Identify methods and attributes that belong to each type. Once you have found common meth- ods and attributes, with any methods, consider abstracting it with an interface, with any at- tributes, consider a separate class containing the attributes There are a couple more expansions planned for the game. The next one will involve a playable Cat class, is the new class diagram able to handle the additional class