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import pygame
from random import randint
BLACK = (0, 0, 0)
class Ball(pygame.sprite.Sprite):
#This class represents a car. 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(BLACK)
self.image.set_colorkey(BLACK)
# Draw the ball (a rectangle!)
pygame.draw.rect(self.image, color, [0, 0, width, height])
self.velocity = [randint(4,8),randint(-8,8)]
# Fetch the rectangle object that has the dimensions of the image.
self.rect = self.image.get_rect()
def update(self):
self.rect.x += self.velocity[0]
self.rect.y += self.velocity[1]
def bounce(self):
self.velocity[0] = -self.velocity[0]
self.velocity[1] = randint(-8,8)
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