def main(game):
"""
Main game logic.
:param game: Game object
:return:
"""
airplane = Airplane(game.get_airplane_img(), 200, 200)
obstacles = [Obstacle(game.get_obstacle_img(), 700)]
window = game.get_window()
clock = game.get_clock()
font = game.get_font()
# Define position of sliding background images
bg_x = 0
bg_x2 = game.get_window_width()
# Start game
run = True
while run:
is_jump = False
clock.tick(FPS) # Limit game loop to 30 iterations per second
# Process user input from keyboard
for event in pygame.event.get():
if event.type == pygame.QUIT:
# Close the game window
run = False
pygame.quit()
sys.exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_SPACE:
airplane.jump()
is_jump = True
if not is_jump:
airplane.move()
# Check if airplane has fallen off screen
if airplane.get_y() <= 0 or airplane.get_y() >= game.get_window_height(
):
# Game over. Go to game over screen
run = False
game.set_game_in_session(False)
return
# Generate obstacle
add_obstacle = False
for obstacle in obstacles:
if obstacle.collide(airplane):
# Airplane hit obstacle. Go to game over screen
run = False
game.set_game_in_session(False)
return
if not obstacle.get_passed(
) and obstacle.get_x() < airplane.get_x():
# Obstacle has been successfully passed, set flag to generate new obstacle
obstacle.set_passed(True)
add_obstacle = True
obstacle.move()
if add_obstacle:
# Generate a new obstacle and increment score by 1
game.increment_score()
obstacles.append(Obstacle(game.get_obstacle_img(), 700))
# Update game window with changes
draw_window(window, airplane, obstacles, game.get_bg_img(), bg_x,
bg_x2, font, game.get_score())
# Sliding background
bg_x -= 2
bg_x2 -= 2
if bg_x < -game.get_window_width():
bg_x = game.get_window_width()
if bg_x2 < -game.get_window_width():
bg_x2 = game.get_window_width()
