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car.py
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car.py
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import pygame
WHITE = (255, 255, 255)
class Car(pygame.sprite.Sprite):
#This class represents a car. It derives from the "Sprite" class in Pygame.
def __init__(self, color, width, height, speed):
# 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(WHITE)
self.image.set_colorkey(WHITE)
#Initialise attributes of the car.
self.width=width
self.height=height
self.color = color
self.speed = speed
# Draw the car (a rectangle!)
pygame.draw.rect(self.image, self.color, [0, 0, self.width, self.height])
# Instead we could load a proper picture of a car...
# self.image = pygame.image.load("car.png").convert_alpha()
# Fetch the rectangle object that has the dimensions of the image.
self.rect = self.image.get_rect()
def moveRight(self, pixels):
self.rect.x += pixels
def moveLeft(self, pixels):
self.rect.x -= pixels
def moveForward(self, speed):
self.rect.y += self.speed * speed / 20
def moveBackward(self, speed):
self.rect.y -= self.speed * speed / 20
def changeSpeed(self, speed):
self.speed = speed
def repaint(self, color):
self.color = color
pygame.draw.rect(self.image, self.color, [0, 0, self.width, self.height])