CS-151 Labs > Lab 2. Object-Oriented Programming

Part 2. Fighting Squirrels

In this part of the lab, you will create several subclasses to the abstract class Fighter. We have provided you with the code for Fighter class, and the code for a fighting game, called FightDriver.java. If you look at Fighter.java, you will see it has three concrete methods that are implemented, and four abstract methods you will have to implement in any class that extends Fighter. In each subclass, you will have to implement the following methods:

public int fight()
This should return a constant representing a possible fighting move. You can see that at the top of the Fighter class, we have defined four constants: BLOCK, PUNCH, KICK and FIREBALL. In order for the FightDriver code to work correctly, you will need to return one of these constants.

A note about strategy: Each type of fight move has an integer value v associated with it. The move takes v units of energy from the fighter who uses the move, and inflicts 2v units of damage upon the fighter the move is used against—if it doesn’t miss. Fighters start with 50 units of energy, and get 15 more energy units each round. If a Fighter has negative energy, then they are considered too tired to continue and lose the fight.

public String name()
This should return the name of the fighter.
public String winning()
This returns the catchphrase the fighter says when they win.
public String losing()
This returns the catchphrase the fighter says when they lose.

You will create the following fighter classes, each of which extend the abstract class Fighter.

Pyro
  • Fight: If Pyro’s energy is above 30, they use the FIREBALL move. Otherwise they BLOCK.
  • Name: Pyro
  • Winning & Losing: You can come up with some appropriate fire-related catchphrases, or use the ones from the examples below.
KickyPunchy
  • Fight: KickyPunchy alternates between KICK and PUNCH.
  • Name: KickyPunchy
  • Winning & Losing: You can come up with some appropriate catchphrases, or use the ones from the examples below.
FightingSquirrel
You get to design this one! Come up with whatever strategy, name, and catchphrases you like.

Testing your code

If you implemented everything correctly, when you compile everything and run the FightDriver class, everything should work. The fight outcomes are random, but you should get something like this

The Mighty Fighting Squirrel is fighting KickyPunchy
ROUND 1 FIGHT!
  The Mighty Fighting Squirrel has 100 energy
  KickyPunchy has 100 energy
  The Mighty Fighting Squirrel uses Kick which costs 15 energy and...misses!
  KickyPunchy uses Kick which costs 15 energy and...misses!
  Both fighters recover some energy

ROUND 2 FIGHT!
  The Mighty Fighting Squirrel has 100 energy
  KickyPunchy has 100 energy
  The Mighty Fighting Squirrel uses Fireball which costs 20 energy and...misses!
  KickyPunchy uses Punch which costs 10 energy and...hits!
  The Mighty Fighting Squirrel loses 20 energy
  Both fighters recover some energy

ROUND 3 FIGHT!
  The Mighty Fighting Squirrel has 75 energy
  KickyPunchy has 100 energy
  The Mighty Fighting Squirrel uses Punch which costs 10 energy and...hits!
  KickyPunchy loses 20 energy
  KickyPunchy uses Kick which costs 15 energy and...misses!
  Both fighters recover some energy

ROUND 4 FIGHT!
  The Mighty Fighting Squirrel has 80 energy
  KickyPunchy has 80 energy
  The Mighty Fighting Squirrel uses Punch which costs 10 energy and...misses!
  KickyPunchy uses Punch which costs 10 energy and...misses!
  Both fighters recover some energy

ROUND 5 FIGHT!
  The Mighty Fighting Squirrel has 85 energy
  KickyPunchy has 85 energy
  The Mighty Fighting Squirrel blocks
  KickyPunchy uses Kick which costs 15 energy and...hits, but is blocked
  The Mighty Fighting Squirrel loses 15 energy
  Both fighters recover some energy

ROUND 6 FIGHT!
  The Mighty Fighting Squirrel has 85 energy
  KickyPunchy has 85 energy
  The Mighty Fighting Squirrel blocks
  KickyPunchy uses Punch which costs 10 energy and...misses!
  Both fighters recover some energy

ROUND 7 FIGHT!
  The Mighty Fighting Squirrel has 100 energy
  KickyPunchy has 90 energy
  The Mighty Fighting Squirrel uses Punch which costs 10 energy and...hits!
  KickyPunchy loses 20 energy
  KickyPunchy uses Kick which costs 15 energy and...misses!
  Both fighters recover some energy

ROUND 8 FIGHT!
  The Mighty Fighting Squirrel has 100 energy
  KickyPunchy has 70 energy
  The Mighty Fighting Squirrel blocks
  KickyPunchy uses Punch which costs 10 energy and...hits, but is blocked
  The Mighty Fighting Squirrel loses 10 energy
  Both fighters recover some energy

ROUND 9 FIGHT!
  The Mighty Fighting Squirrel has 100 energy
  KickyPunchy has 75 energy
  The Mighty Fighting Squirrel uses Punch which costs 10 energy and...hits!
  KickyPunchy loses 20 energy
  KickyPunchy uses Kick which costs 15 energy and...scores a CRITICAL HIT!!!
  The Mighty Fighting Squirrel loses 45 energy
  Both fighters recover some energy

ROUND 10 FIGHT!
  The Mighty Fighting Squirrel has 60 energy
  KickyPunchy has 55 energy
  The Mighty Fighting Squirrel uses Fireball which costs 20 energy and...hits!
  KickyPunchy loses 40 energy
  KickyPunchy uses Punch which costs 10 energy and...misses!
  Both fighters recover some energy

ROUND 11 FIGHT!
  The Mighty Fighting Squirrel has 55 energy
  KickyPunchy has 20 energy
  The Mighty Fighting Squirrel uses Kick which costs 15 energy and...misses!
  KickyPunchy uses Kick which costs 15 energy and...misses!
  Both fighters recover some energy

ROUND 12 FIGHT!
  The Mighty Fighting Squirrel has 55 energy
  KickyPunchy has 20 energy
  The Mighty Fighting Squirrel uses Punch which costs 10 energy and...misses!
  KickyPunchy uses Punch which costs 10 energy and...hits!
  The Mighty Fighting Squirrel loses 20 energy
  Both fighters recover some energy

ROUND 13 FIGHT!
  The Mighty Fighting Squirrel has 40 energy
  KickyPunchy has 25 energy
  The Mighty Fighting Squirrel uses Kick which costs 15 energy and...misses!
  KickyPunchy uses Kick which costs 15 energy and...hits!
  The Mighty Fighting Squirrel loses 30 energy

KickyPunchy wins!
KickyPunchy says "Kicking and punching towards Victory!"
The Mighty Fighting Squirrel says "Awww, 🥜nuts🥜."

or like this

Pyro is fighting KickyPunchy
ROUND 1 FIGHT!
  Pyro has 100 energy
  KickyPunchy has 100 energy
  Pyro uses Fireball which costs 20 energy and...misses!
  KickyPunchy uses Kick which costs 15 energy and...hits!
  Pyro loses 30 energy
  Both fighters recover some energy

ROUND 2 FIGHT!
  Pyro has 65 energy
  KickyPunchy has 100 energy
  Pyro uses Fireball which costs 20 energy and...hits!
  KickyPunchy loses 40 energy
  KickyPunchy uses Punch which costs 10 energy and...scores a CRITICAL HIT!!!
  Pyro loses 30 energy
  Both fighters recover some energy

ROUND 3 FIGHT!
  Pyro has 30 energy
  KickyPunchy has 65 energy
  Pyro blocks
  KickyPunchy uses Kick which costs 15 energy and...hits, but is blocked
  Pyro loses 15 energy
  Both fighters recover some energy

ROUND 4 FIGHT!
  Pyro has 30 energy
  KickyPunchy has 65 energy
  Pyro blocks
  KickyPunchy uses Punch which costs 10 energy and...misses!
  Both fighters recover some energy

ROUND 5 FIGHT!
  Pyro has 45 energy
  KickyPunchy has 70 energy
  Pyro uses Fireball which costs 20 energy and...hits!
  KickyPunchy loses 40 energy
  KickyPunchy uses Kick which costs 15 energy and...misses!
  Both fighters recover some energy

ROUND 6 FIGHT!
  Pyro has 40 energy
  KickyPunchy has 30 energy
  Pyro uses Fireball which costs 20 energy and...hits!
  KickyPunchy loses 40 energy
  KickyPunchy uses Punch which costs 10 energy and...misses!

Pyro wins!
Pyro says "Flame on! 🔥🔥🔥"
KickyPunchy says "I live to kick (and/or punch) another day."``