paddle.py

import pygame

import common as c

 
class Paddle(pygame.sprite.Sprite):
    # This class represents a paddle. It derives from the "Sprite" class in Pygame.
    
    def __init__(self, color, width, height):
        # Call the parent class (Sprite) constructor
        super().__init__()
        
        # Pass in the color of the car, and its x and y position, width and height.
        # Set the background color and set it to be transparent
        self.image = pygame.Surface([width, height])
        self.image.fill(c.BLACK)
        self.image.set_colorkey(c.BLACK)
 
        # Draw the paddle (a rectangle!)
        pygame.draw.rect(self.image, color, [0, 0, width, height])
        
        # Fetch the rectangle object that has the dimensions of the image.
        self.rect = self.image.get_rect()

    def moveLeft(self, pixels):
        self.rect.x -= pixels
        # Bounds check
        if self.rect.x < 0:
            self.rect.x = 0

    def moveRight(self, pixels):
        self.rect.x += pixels
        # Bounds check
        if self.rect.x > c.WIN_X - c.PADDLE_X:
            self.rect.x = c.WIN_X - c.PADDLE_X