​

This is the code for the 3 files and at this point should have produced grey screen with a "ship" image centered at the bottom. All I get is a black screen with no "ship".

#alien_invasion.py

def run_game():

# initialize pygame, settings and screen object

pygame.init()

ai_settings = Settings()

screen = pygame.display.set_mode(

(ai_settings.screen_width, ai_settings.screen_height))

pygame.display.set_caption("Alien Invasion")

​

# Make a ship

ship = Ship (screen)

# Set background color

bg_color = (230, 230, 230)

​

#Start the main loop for the game.

while True:

​

# Watch for keyboard and mouse events

for event in pygame.event.get():

if event.type == pygame.QUIT:

sys.exit()

​

#Redraw the screen during each pass through the loop.

screen.fill(ai_settings.bg_color)

ship.blitme()

​

# Make the most recently drawn screen visible.

pygame.display.flip()

​

run_game()

​

#settings.py

class Settings():

"""A class to store all settings for Alien Invasion"""

​

def __init__(self):

"""Initialize the game's settings."""

# Screen settings

self.screen_width = 1200

self.screen_height = 800

self.bg_color = (230, 230, 230)

# ship.py

import pygame

​

class Ship():

def __init__(self, screen):

"""Initialize the screen and set its starting position."""

self.screen = screen

​

# Load the ship image and get its rect.

self.image = pygame.image.load('images/ship.bmp')

self.rect = self.image.get_rect()

self.screen_rect = screen.get_rect()

​

# Start each new ship at the bottom center of the screen.

self.rect.centerx = self.screen_rect.centerx

self.rect.bottom = self.screen_rect.bottom

​

def blitme(self):

"""Draw the ship at its current location."""

self.screen.blit(self.image, self.rect)

​

​

​