exercise_2_1_solution.md

Unit 4 Practice Solutions

Exercise 2 Solution

2.1

As shown in the flowchart, this solution will consists of a REPL loop performing a series of two actions for each character.

1. One of the characters will attack and the other's hp will be reduced.
2. Check if the non-attacking character's hp is less than or equal to zero (i.e. they've been defeated).

As soon as one character is defeated, a message will print saying who won the battle and the loop will end.

We'll be adding an input() before each character attacks to make the battle more interactive. This step isn't represented in the flowchart, but will be in the code.

We'll also be adding print() functions periodically to provide feedback on the status of the battle to the user.

# ----------------------------------------------------------- #
# Setup
# ----------------------------------------------------------- #


# define hero/villain stats
hero = {
    "name": "Andromeda",
    "hp": 100,
    "attack": 35
}

villain = {
    "name": "Helios",
    "hp": 100,
    "attack": 33
}

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
    '''
    return character['hp'] <= 0


# ----------------------------------------------------------- #
# Battle!
# ----------------------------------------------------------- #

while True:
    # display hp
    print(f"{hero['name']} has {hero['hp']} hp!")
    print(f"{villain['name']} has {villain['hp']} hp!")

    input("\nPress enter to begin the battle!")

    # Hero attacks
    print(f"\n{hero['name']} attacks!")

    # subtract hero's attack strength from the villain's hp
    villain['hp'] -= hero['attack']

    # check if the villain is defeated
    if is_defeated(villain):
        print(f"{villain['name']} has been defeated! {hero['name']} is victorious!")
        break # end the loop
    
    # display hp
    print(f"{hero['name']} has {hero['hp']} hp!")
    print(f"{villain['name']} has {villain['hp']} hp!")

    input("\nPress enter to continue the battle!")
 
    # Villain attacks
    print(f"\n{villain['name']} attacks!")

    # subtract hero's attack strength from the villain's hp
    hero['hp'] -= villain['attack']

    # check if the hero is defeated
    if is_defeated(hero):
        print(f"\n{hero['name']} has been defeated! {villain['name']} is victorious!")
        break # end the loop

Keep in mind that this is just one potential solution.

< Exercise 2 | 2.2 Solution >

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