main.py

def game():
  import random
  import pygame
  from car import Car
  from obstacle import Obstacle
  pygame.init()
  BLACK = ( 0, 0, 0)
  WHITE = (255, 255, 255)
  GREEN = (61, 191, 52)
  GRAY = (148, 148, 148)
  DARKGRAY = (87, 87, 87)
  width = 700
  height = 700
  screen = pygame.display.set_mode((width, height))
  pygame.display.set_caption("My First Game")

  display_surface = pygame.display.set_mode((width, height)) #display surface object for text
  def show_text(text, fontsize, textColour, xPos, yPos): #background will be none
    #displaying text
    font = pygame.font.Font('freesansbold.ttf', fontsize) #set font
    textSurf = font.render(text, True, textColour) #text surface object for test
    textSurf = font.render(text, True, textColour) #text surface object for test
    textRect = textSurf.get_rect() #rect obj for surface
    textRect.center = (xPos, yPos) # set the center placement for obj
    display_surface.blit(textSurf, textRect)

  def drawLanes(pixels):
    for x in range(10):
      pygame.draw.rect(screen, WHITE, [270, x*100-pixels, 10, 50],0)
    for x in range(10):
      pygame.draw.rect(screen, WHITE, [420, x*100-pixels, 10, 50],0)
  
  MC = pygame.sprite.Group()
  player = Car(50, 100)
  MC.add(player)
  player.rect.x = 330
  player.rect.y = height/2+100
  speed = 5.0
  often = 1000
  obstacles_list = pygame.sprite.Group()
  obstacle_positions = [480, 200, 330]
  clock = pygame.time.Clock() 

  # The loop will carry on until the user exit the game (e.g. clicks the close button).
  carryOn = True
  startGame = False
  lives = 3
  def reset():

    speed = 5.0
    often = 1000
    pygame.time.set_timer(pygame.USEREVENT+1, often)
    pygame.time.set_timer(pygame.USEREVENT+2, 3500)

    obstacles_list = pygame.sprite.Group()
    obst = Obstacle(50, 100)
    obst.rect.x = obstacle_positions[(int)(random.uniform(0, 3))]
    obstacles_list.add(obst)
    # The clock will be used to control how fast the screen updates
    clock = pygame.time.Clock() 

    # The loop will carry on until the user exit the game (e.g. clicks the close button).
    carryOn = True
    startGame = False
    lives = 3
    print(lives)

  reset()
  # -------- Main Program Loop -----------
  while carryOn:
    # --- Main event loop
    if lives > 0:
      if startGame:
        for event in pygame.event.get():
          if event.type == pygame.QUIT:
            carryOn = False
          elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_x: #if esc key is pressed, exit game
              carryOn = False
          if event.type == pygame.USEREVENT+1:
            rand = (int)(random.uniform(0, 3))
            obst2 = Obstacle(50, 100)
            obst2.rect.x = obstacle_positions[rand]
            obstacles_list.add(obst2)

            speed += 0.1

            if (speed > 8):
              newRand = (int)(random.uniform(0, 3))
              while newRand == rand:
                newRand = (int)(random.uniform(0, 3))
              obst2 = Obstacle(50, 100)
              obst2.rect.x = obstacle_positions[newRand]
              obstacles_list.add(obst2)

          if event.type == pygame.USEREVENT+2 and speed > 9.8:
            rand = (int)(random.uniform(0, 3))
            obst2 = Obstacle(50, 100)
            obst2.rect.x = obstacle_positions[rand]
            obstacles_list.add(obst2)
            speed = 9

        keys = pygame.key.get_pressed()
        if keys[pygame.K_RIGHT] and player.rect.x < 540 - player.rect.width:
          player.moveRight(7)
          startGame = True
        if keys[pygame.K_LEFT] and player.rect.x > 150 + 10:
          player.moveLeft(7)
          startGame = True

        obstacles_list.update(speed)
        # obstacles_list.update((int)(abs(x-5000)/1000)+1)
        
        for obstacle in obstacles_list:
          if obstacle.rect.colliderect(player):
            obstacles_list.remove(obstacle)
            lives -= 1
            show_text('CRASH', 28, BLACK, width/2, height/2+300)

      # --- Drawing code should go here
      screen.fill(GREEN)
      # pygam.draw.rec(location, colour, [x-coordinate, y-corrdinate, width, length], idk)
      pygame.draw.rect(screen, GRAY, [150, 0, 400, height],0)
      pygame.draw.rect(screen, DARKGRAY, [150, 0, 10, height],0)
      pygame.draw.rect(screen, DARKGRAY, [540, 0, 10, height],0)
      drawLanes(20) 
      #Now let's draw all the sprites in one go. (For now we only have 1 sprite!)
      obstacles_list.draw(screen)
      MC.draw(screen)
      show_text(f'Lives: {lives}', 25, BLACK, 50, 25)
      if not startGame:
        show_text('Use the arrow keys to move', 28, BLACK, width/2, height/2-50)
        show_text('You have 3 lives, Good Luck!', 28, BLACK, width/2, height/2 + 50)
        for event in pygame.event.get():
          if event.type == pygame.QUIT:
            carryOn = False
          if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_x: #if x key is pressed, exit game
              carryOn = False
            if event.key == pygame.K_RIGHT or event.key == pygame.K_LEFT:
              startGame = True
    else:
      screen.fill((100,200,100))
      show_text('Game Over!', 32, BLACK, width/2, height/2-50)
      show_text('press ESC to exit or SPACE to restart', 25, BLACK, width/2, height/2+50)
      for event in pygame.event.get():
          if event.type == pygame.QUIT:
            carryOn = False
          elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE: #if x key is pressed, exit game
              carryOn = False
            if event.key == pygame.K_SPACE:
              print('reset')
              reset()
              speed = 5.0
              often = 1000
              pygame.time.set_timer(pygame.USEREVENT+1, often)
              pygame.time.set_timer(pygame.USEREVENT+2, 3500)

              obstacles_list = pygame.sprite.Group()
              obst = Obstacle(50, 100)
              obst.rect.x = obstacle_positions[(int)(random.uniform(0, 3))]
              obstacles_list.add(obst)
              # The clock will be used to control how fast the screen updates
              clock = pygame.time.Clock() 

              # The loop will carry on until the user exit the game (e.g. clicks the close button).
              carryOn = True
              startGame = False
              lives = 3
              print(lives)
              print(lives)

    # --- Go ahead and update the screen with what we've drawn.
    pygame.display.flip()

    # --- Limit to 60 frames per second
    clock.tick(60)

#Once we have exited the main program loop we can stop the game engine:
  # pygame.quit()