Laboratory 8

Laboratory 8
Due at the end of today's class

The Hero class
In this lab you will create the Hero class. A hero is an object that has a name, an inventory of items that he or she carries, and some number of health points. This class would be useful if you were developing an adventure game in which a hero journeys through a world collecting objects and fighting monsters.

Creating the class.
Create the Hero class with the following properties and methods:

Properties:

A list called inventory. It should initially be empty.

An integer called health. It should be initially set to 10.

Methods (functions):

def __init__(self, name)
This method should set a property, called name, to the value of the parameter name.
self.name = name
def __str__(self)
This should return a string, "I am the hero, " plus the hero's name, e.g. "I am the hero, Lancelot"
def add_inventory(self, item)
This should append item to the hero's inventory.
def print_inventory(self)
This should print "The following items are in the inventory."
It should then print each item (hint: use a for loop)
def attack_troll(self)
This should print that the hero has attacked a troll, e.g. "Lancelot has attacked a troll."
It should subtract 2 from the hero's health.
It should print the new health value, e.g. "Lancelot now has 8 health points."
def heal(self):
This should search the inventory for a "potion".
If a potion is found, it should print "The healing potion has healed" the hero, and it should set the hero's health to 10.
It should then print the hero's health, e.g. "Lancelot now has 10 health points."

Part 1:
Start by defining the Hero class with the two properties (inventory and health). Add the __init__(self, name) method and the __str__(self) method.

Use the following template to test your class so far:

#Program: heroClass.py
#Your program prologue goes here

class Hero:
#Add your properties and methods here (don't forget to indent)



#The main program starts here (to test the class)
heroName = raw_input("Please enter the hero's name: ")
myHero = Hero(heroName)
print myHero

Sample output: The output should look as follows (user input is underlined):

Please enter the hero's name: Fred
I am the hero, Fred

Part 2:
Add the definitions of add_inventory(self, item) and print_inventory(self). Add these methods after the __str__(self) method but before the main program.

Change your main program so that it tests these new methods as follows:

heroName = raw_input("Please enter the hero's name: ")
myHero = Hero(heroName)
print myHero
myHero.add_inventory("sword")
myHero.add_inventory("potion")
myHero.add_inventory("armor")
myHero.print_inventory( )

Sample output: The output should look as follows (user input is underlined):

Please enter the hero's name: Eowyn
I am the hero, Eowyn
The following items are in the inventory: 
sword
potion
armor

Part 3:
Add the definitions of attack_troll(self) and heal(self). Add these after the definition of print_inventory(self) but before the main program.

Change your main program to test these new methods as follows:

heroName = raw_input("Please enter the hero's name: ")
myHero = Hero(heroName)
print myHero
myHero.add_inventory("sword")
myHero.add_inventory("potion")
myHero.add_inventory("armor")
myHero.print_inventory( )
myHero.attack_troll( )
myHero.heal( )

Sample output: The output should look as follows (user input is underlined):

Please enter the hero's name: Mario
I am the hero, Mario
The following items are in the inventory: 
sword
potion
armor
Mario has attacked a troll.
Mario now has 8 health points.
The healing potion heals Mario
Mario now has 10  health points.

What To Turn In.

A printed listing of the final program from part 3. Be sure that your name is in the program prologue’s comment section of the program.
A printout of a sample run of the program like the sample from part 3 above.

Reminder.

Be sure to save a copy of each program on your P:\ drive.