22.8. Chapter Assessment

The class, Pokemon, is provided below and describes a Pokemon and its leveling and evolving characteristics. An instance of the class is one pokemon that you create.

Grass_Pokemon is a subclass that inherits from Pokemon but changes some aspects, for instance, the boost values are different.

For the subclass Grass_Pokemon, add another method called action that returns the string "[name of pokemon] knows a lot of different moves!". Create an instance of this class with the name as "Belle". Assign this instance to the variable p1.

class Pokemon(object): attack = 12 defense = 10 health = 15 p_type = "Normal" def __init__(self, name, level = 5): self.name = name self.level = level def train(self): self.update() self.attack_up() self.defense_up() self.health_up() self.level = self.level + 1 if self.level%self.evolve == 0: return self.level, "Evolved!" else: return self.level def attack_up(self): self.attack = self.attack + self.attack_boost return self.attack def defense_up(self): self.defense = self.defense + self.defense_boost return self.defense def health_up(self): self.health = self.health + self.health_boost return self.health def update(self): self.health_boost = 5 self.attack_boost = 3 self.defense_boost = 2 self.evolve = 10 def __str__(self): self.update() return "Pokemon name: {}, Type: {}, Level: {}".format(self.name, self.p_type, self.level) class Grass_Pokemon(Pokemon): attack = 15 defense = 14 health = 12 def update(self): self.health_boost = 6 self.attack_boost = 2 self.defense_boost = 3 self.evolve = 12 def moves(self): self.p_moves = ["razor leaf", "synthesis", "petal dance"] ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOneA(self): self.assertEqual(p1.action(), "Belle knows a lot of different moves!", "Testing that action method is correct and p1 assigned to correct value") myTests().main()

Modify the Grass_Pokemon subclass so that the attack strength for Grass_Pokemon instances does not change until they reach level 10. At level 10 and up, their attack strength should increase by the attack_boost amount when they are trained.

To test, create an instance of the class with the name as "Bulby". Assign the instance to the variable p2. Create another instance of the Grass_Pokemon class with the name set to "Pika" and assign that instance to the variable p3. Then, use Grass_Pokemon methods to train the p3 Grass_Pokemon instance until it reaches at least level 10.

class Pokemon(object): attack = 12 defense = 10 health = 15 p_type = "Normal" def __init__(self, name, level = 5): self.name = name self.level = level def train(self): self.update() self.attack_up() self.defense_up() self.health_up() self.level = self.level + 1 if self.level%self.evolve == 0: return self.level, "Evolved!" else: return self.level def attack_up(self): self.attack = self.attack + self.attack_boost return self.attack def defense_up(self): self.defense = self.defense + self.defense_boost return self.defense def health_up(self): self.health = self.health + self.health_boost return self.health def update(self): self.health_boost = 5 self.attack_boost = 3 self.defense_boost = 2 self.evolve = 10 def __str__(self): return "Pokemon name: {}, Type: {}, Level: {}".format(self.name, self.p_type, self.level) class Grass_Pokemon(Pokemon): attack = 15 defense = 14 health = 12 p_type = "Grass" def update(self): self.health_boost = 6 self.attack_boost = 2 self.defense_boost = 3 self.evolve = 12 def moves(self): self.p_moves = ["razor leaf", "synthesis", "petal dance"] ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOneA(self): self.assertEqual(p2.__str__(), "Pokemon name: Bulby, Type: Grass, Level: 5", "Testing that p2 is assigned to correct value.") def testOneB(self): self.assertTrue(p3.attack_up() >= 17, "Testing that attack value is assigned to correct value at level 10.") myTests().main()

Along with the Pokemon parent class, we have also provided several subclasses. Write another method in the parent class that will be inherited by the subclasses. Call it opponent. It should return which type of pokemon the current type is weak and strong against, as a tuple.

• Grass is weak against Fire and strong against Water

• Ghost is weak against Dark and strong against Psychic

• Fire is weak against Water and strong against Grass

• Flying is weak against Electric and strong against Fighting

For example, if the p_type of the subclass is 'Grass', .opponent() should return the tuple ('Fire', 'Water')

class Pokemon(): attack = 12 defense = 10 health = 15 p_type = "Normal" def __init__(self, name,level = 5): self.name = name self.level = level self.weak = "Normal" self.strong = "Normal" def train(self): self.update() self.attack_up() self.defense_up() self.health_up() self.level = self.level + 1 if self.level%self.evolve == 0: return self.level, "Evolved!" else: return self.level def attack_up(self): self.attack = self.attack + self.attack_boost return self.attack def defense_up(self): self.defense = self.defense + self.defense_boost return self.defense def health_up(self): self.health = self.health + self.health_boost return self.health def update(self): self.health_boost = 5 self.attack_boost = 3 self.defense_boost = 2 self.evolve = 10 def __str__(self): self.update() return "Pokemon name: {}, Type: {}, Level: {}".format(self.name, self.p_type, self.level) class Grass_Pokemon(Pokemon): attack = 15 defense = 14 health = 12 p_type = "Grass" def update(self): self.health_boost = 6 self.attack_boost = 2 self.defense_boost = 3 self.evolve = 12 class Ghost_Pokemon(Pokemon): p_type = "Ghost" def update(self): self.health_boost = 3 self.attack_boost = 4 self.defense_boost = 3 class Fire_Pokemon(Pokemon): p_type = "Fire" class Flying_Pokemon(Pokemon): p_type = "Flying" ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOneA(self): self.assertEqual(Grass_Pokemon("Buggy").opponent(), ("Fire", "Water"), "Testing that Grass weak and strong are assigned to correct values.") def testOneB(self): self.assertEqual(Fire_Pokemon("Buggy").opponent(), ("Water", "Grass"), "Testing that Fire weak and strong are assigned to correct values.") def testOneC(self): self.assertEqual(Ghost_Pokemon("Buggy").opponent(), ("Dark", "Psychic"), "Testing that Ghost weak and strong are assigned to correct values.") def testOneD(self): self.assertEqual(Flying_Pokemon("Buggy").opponent(), ("Electric", "Fighting"), "Testing that Flying weak and strong are assigned to correct values.") myTests().main()

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