Run your code, then check each checkpoint before moving on.

1. 1. Add gravity and jump.

   Not checked
   Tip: jump + gravity pattern

   Example pattern (not the full solution):

   if keys[pygame.K_SPACE] and on_ground:
       vy = -12
   vy += 0.7
   player.y += int(vy)

2. 2. Generate moving pipes.

   Not checked
   Tip: timed spawn pattern

   Example pattern (not the full solution):

   spawn_timer += 1
   if spawn_timer >= 30:
       spawn_timer = 0
       objects.append(make_object(random.randint(0, W - 20)))

3. 3. Score by passing gaps.

   Not checked
   Tip: score update pattern

   Example pattern (not the full solution):

   if player_reached_goal:
       score += 1

4. 4. Restart with R.

   Not checked
   Tip: restart flow pattern

   Example pattern (not the full solution):

   if event.type == pygame.KEYDOWN and event.key == pygame.K_r:
       # Reset key game state values
       score = 0
       game_over = False