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Follow-Up Assignment Series: Python Game Development

11 - Score Multiplier and Bonus Points

Introduction

In this assignment, we'll introduce a score multiplier feature. If a player hits the ball multiple times without missing, their score will increase faster. This concept is similar to a combo multiplier in many games, encouraging players to keep the ball in play to maximize their score.

Task

  1. Multiplier Logic:
    • Create a multiplier variable starting at 1.
    • Every time the ball hits the paddle without the player missing, increase the multiplier by 0.5 (up to a maximum of 3x).
    • When the player misses, reset the multiplier to 1.
  2. Update Score Function:
    • Modify the update_score() function to display the current multiplier alongside the score.
Example Code Snippet:
# Initialize the multiplier
multiplier = 1.0

# Update the score function to include the multiplier
def update_score():
    pen.clear()
    pen.write(f"Score: {score} Levens: {lives} Multiplier: {multiplier}x", align="center", font=("Courier", 24, "normal"))

# Update multiplier in the game loop
if hit_paddle:
    multiplier = min(multiplier + 0.5, 3)
    score += int(1 * multiplier)
else:
    multiplier = 1

Deliverable

A screenshot showing the score, lives, and current multiplier on the screen.

12 - OOP with Turtle

Introduction

To enhance your Python skills, we'll refactor our Pong game using Object-Oriented Programming (OOP). This will help in managing complex codebases and introduce new concepts like classes, objects, methods, and encapsulation.

Task

  1. Create a Paddle Class:
    • Convert the existing paddle code into a Paddle class with attributes for position and size.
    • Include methods for moving up and down and initializing the paddle.
  2. Create a Ball Class:
    • Convert the ball code into a Ball class with attributes for position and velocity.
    • Include methods to move the ball and check for collisions.
Example Code Snippet:
class Paddle:
    def __init__(self, x, y):
        self.paddle = turtle.Turtle()
        self.paddle.shape("square")
        self.paddle.color("white")
        self.paddle.shapesize(stretch_wid=6, stretch_len=1)
        self.paddle.penup()
        self.paddle.goto(x, y)
    
    def move_up(self):
        y = self.paddle.ycor()
        if y < 250:
            y += 20
        self.paddle.sety(y)

    def move_down(self):
        y = self.paddle.ycor()
        if y > -240:
            y -= 20
        self.paddle.sety(y)

# Similar refactoring would be done for the Ball class
python

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