class Game:
def __init__(self, surface):
"""
:param surface: surface of the window
"""
# game variables
self.surface = surface
self.clock = pygame.time.Clock()
self.continue_game = True
self.game_pause = False
self.start_game = False
self.collision = False
# score variables
self.score = 0
self.cross_pipe1 = False
self.cross_pipe2 = False
# fps counter
self.fps = 30
# background and ground
self.background = pygame.image.load(
"./Assets/images/flappy_background.png").convert_alpha()
self.background = pygame.transform.scale(
self.background, (surface.get_width(), surface.get_height()))
self.ground = pygame.image.load(
"./Assets/images/ground.png").convert_alpha()
self.ground = pygame.transform.scale(
self.ground,
(surface.get_width(), int(surface.get_height() // 5.48)))
self.bg_scroll = 0
self.rel_x = self.bg_scroll % self.ground.get_rect(
).width # for background scrolling
self.ground_y = self.surface.get_height() - self.ground.get_rect(
).height
# flappy objects
self.player = Bird(self.surface, self.background)
self.all_sprites = pygame.sprite.Group(self.player)
self.dt = None # timer for bird animation
# bottom rect for collision
self.bottom_rect = pygame.Rect(
0,
self.surface.get_height() - self.ground.get_rect().height,
self.ground.get_rect().width,
self.ground.get_rect().height)
# pipe object
self.pipe1 = Pipe(self.surface, self.ground)
self.pipe2 = Pipe(self.surface, self.ground)
# pipe scroll variables
self.pipe1_rel_x = self.surface.get_width() + self.surface.get_width(
) // 1.08 # added 1000 to give some time when game starts
self.min_pipe1_rel_x = -self.pipe1.pipe_width()
self.pipe2_rel_x = self.surface.get_width(
) + self.surface.get_width() // 1.54 + self.surface.get_width(
) // 1.08 # added 700 due to pipe difference
self.min_pipe2_rel_x = -self.pipe2.pipe_width()
# game texts object
self.game_text = Font(self.surface, self.ground)
def play(self):
"""
Main Game Loop
:return: None
"""
while self.continue_game:
self.dt = self.clock.tick(self.fps) / 1000 # for game animation
self.event_handler() # handling pygame events
if self.start_game:
self.play_game() # game start function
if not self.game_pause:
self.player.image_animation(self.dt,
self.start_game) # bird animation
self.draw()
if not self.start_game:
if not self.game_pause:
self.game_text.draw_intro()
if self.game_pause:
self.game_text.draw_game_over(str(self.score))
pygame.display.update()
def event_handler(self):
"""
Handles pygame events
:return: None
"""
events = pygame.event.get()
keys = pygame.key.get_pressed()
for event in events:
if event.type == pygame.QUIT or keys[pygame.K_ESCAPE]:
self.continue_game = False
if event.type == pygame.KEYDOWN:
if keys[pygame.K_SPACE]:
self.start_game = True
self.player.jump(True)
if not keys[pygame.K_SPACE]:
self.player.jump(False)
if keys[pygame.K_SPACE]:
if self.game_pause:
self.__init__(self.surface) # restarts the game
self.dt = self.clock.tick(self.fps) / 1000
if keys[pygame.K_ESCAPE]:
self.continue_game = False
if self.collision:
self.game_pause = True
self.start_game = False
def play_game(self):
"""
Starts the game when space is pressed
:return: None
"""
self.pipe_scroll()
self.player.rotation(self.dt)
self.player.move()
self.update_score()
self.player_collision()
def draw(self):
"""
Draws the objects on the surface
:return: None
"""
self.surface.blit(self.background, (0, -self.ground.get_rect().height))
if self.start_game:
self.pipe1.draw(self.pipe1_rel_x)
self.pipe2.draw(self.pipe2_rel_x)
self.game_text.draw_score(str(self.score))
self.all_sprites.draw(self.surface)
if not self.game_pause:
self.background_scroll()
if self.game_pause: # draws the last frame when game pauses
self.pipe1.draw(self.pipe1_rel_x)
self.pipe2.draw(self.pipe2_rel_x)
self.surface.blit(
self.ground,
(self.rel_x - self.ground.get_rect().width, self.ground_y))
self.surface.blit(self.ground, (self.rel_x, self.ground_y))
def background_scroll(self):
"""
Infinite scroll of the ground when the game is being played
:return: None
"""
if self.continue_game: # stars scrolling when game starts
self.rel_x = self.bg_scroll % self.ground.get_rect().width
self.surface.blit(
self.ground,
(self.rel_x - self.ground.get_rect().width, self.ground_y))
if self.rel_x < self.surface.get_width():
self.surface.blit(self.ground, (self.rel_x, self.ground_y))
if self.continue_game:
self.bg_scroll -= 10
def pipe_scroll(self): # maybe make it into list
"""
Moves the pipes 10 pixels
:return: None
"""
if self.pipe1_rel_x < self.min_pipe1_rel_x: # changes the pipe position when it goes out of window
self.pipe1_rel_x = self.pipe2_rel_x + self.surface.get_width(
) // 1.54 # maintains the distance between the pipes
self.cross_pipe1 = False
self.pipe1.pip_position()
self.pipe1_rel_x -= 10
if self.pipe2_rel_x < self.min_pipe2_rel_x:
self.pipe2_rel_x = self.pipe1_rel_x + self.surface.get_width(
) // 1.54
self.cross_pipe2 = False
self.pipe2.pip_position()
self.pipe2_rel_x -= 10
def player_collision(self):
"""
Checks for collision with the player and the bird
:return: None
"""
if self.pipe1.collision(self.player.collision_rect):
self.collision = True
elif self.pipe2.collision(self.player.collision_rect):
self.collision = True
elif self.bottom_rect.colliderect(self.player.collision_rect):
self.collision = True
def update_score(self):
if self.player.return_pos() > self.pipe1_rel_x + self.pipe1.pipe_width(
) and self.cross_pipe1 is False:
self.score += 1
self.cross_pipe1 = True
if self.player.return_pos() > self.pipe2_rel_x + self.pipe2.pipe_width(
) and self.cross_pipe2 is False:
self.score += 1
self.cross_pipe2 = True
