exercise_2.md

Unit 4 Practice

Exercise 2 - Hero Battle

2.1

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Create two dictionaries, hero and villain. The items in each dictionary will represent each characters stats.

Stat	Datatype	Values
name	string	any
hp	integer	0 - 100
attack	integer	1 - 10

is_defeated()

The is_defeated() function will determine if a player's hp is at or below zero, meaning they're been defeated. Here's the function's definition:

def is_defeated(character):
    '''
    Returns False if the character's hp is greater than zero
    Returns True if the character's hp is less than or equal to
    '''
    # ... your code here ...

    pass # replace 'pass' with a return statement

Write a REPL which allows the two characters to do battle. Each character will attack during every loop.

Each attack will subtract the character's attack strength from its opponents hp. Since the attack stat has a range from 1 - 10, feel free to multiply it by 5 or 10 to speed up the battle.

Use the is_defeated() function to determine if the opponent has lost the battle, announce who won and end the loop.

An input() function can be used to slow the battle down a bit and allow the user to decide when the next round of the battle will be executed. This way the battle will be more interactive and won't happen instantaneously.

Exercise 2.1 Solution

2.2

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Chances are that there is a fair amount of reptition in the logic which performs each character's turn in the battle, since the same steps will need to be executed by each character during their turn.

Create a function attack() to handle each round of the battle.

def attack(attacker, opponent):
    '''
    Apply battle damage to the opponent using the attacker's attack stat
    If the opponent is defeated, return True, signifying the battle is over
    Otherwise return False, signifying the battle will continue for another round
    '''
    # ... your code here ... 

    return # use is_defeated() to return True/False if the battle is over

Subtract the value of the attacker's attack stat from the opponents hp stat. Return True if the opponent is defeated, otherwise return False. This boolean will be used to determine if the battle is over or if it will continue for another round.

Exercise 2.2 Solution

2.3

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Add additional stats defense and stance and add allow each the characters to choose their stance each round.

Stat	Datatype	Values
name	string	any
hp	integer	0 - 100
attack	integer	1 - 10
defense	integer	1 - 10
stance	string	'attack' / 'defend'

If a character chooses to defend, they will not attack this turn.

If the character's stance is set to 'defend' when their opponent attacks, the damage they receive is reduced. If the character's stance is set to 'attack', no change is made to the incoming damage.

Two additional functions could be added to handle these modifications:

set_stance()

This function will take in a character dictionary and allow them to choose whether they want to set their stance stat toattack or defend this round using a REPL.

def set_stance(character):
    '''
    Ask the user which stance they would like to take this round.
    Change the value at the key of 'stance' to match the user's choice.
    Stance options: 'attack', 'defend'
    '''

    # ... your code here ... 

    # return the character dictionary with adjusted stance stat
    return character

defend()

The function defend() will be used to adjust the incoming damage to a character when it's their opponent's turn to attack.

Below are the damage reduction rates for different 'defense' stat levels:

Defense Level	Damage Reduction
0 - 4	10%
5 - 7	33%
8 - 10	66%

def defend(character, incoming_damage):
    '''
    Calculate the amount the incoming_damage will be reduced 
    based on the character's 'defense' stat. 
    
    Return the amount the incoming_damage will be reduced
    in a variable called 'damage_reduction'
   
    0 - 4 = 10%, 5 - 7 = 33%, 8 - 10 = 66%
    '''

    # return the reduction amount, rounded to the nearest integer
    return round(damage_reduction)

Exercise 2.3 Solution

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Extra Challenge

Add some more fun features. Pull from your favorite games or stories and get creative! Some ideas might include:

• Special, stronger attacks. These could even require a few rounds to build up power before they're able to be used.
• randomized stats
• randomize which character attacks first
• add 'heal' as a possible stance option and increase the character's hp that round if chosen based on a healing stat
• have the opponent's choices be made by code, rather than user input
• add a third character
• More than one villain (list of dictionaries). The hero could level_up() with each opponent it defeats.

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