Jun-19-2020, 01:07 PM
I have been recently following a tutorial about how to make a flappy bird AI.
When i finished part 4 of the tutorial(tried to add the score) , i tried to run the code and i got this error:
Error:line 208, in main
draw_window(win, bird, pipes, base, score)
UnboundLocalError: local variable 'score' referenced before assignmentthis is my code:
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import osimport randomimport pygameimport timeimport neatpygame.font.init()win_width = 500win_height = 700bird_imgs = [pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird1.png"))), pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird2.png"))), pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bird3.png")))]pipe_img = pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "pipe.png")))base_img = pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "base.png")))bg_img = pygame.transform.scale2x(pygame.image.load(os.path.join("imgs", "bg.png")))Stat_Font = pygame.font.SysFont("comicsans", 50)class Bird: imgs = bird_imgs max_rotation = 25 rotation_velocity = 20 animation_time = 5 def __init__(self, x, y): self.x = x self.y = y self.tilt = 0 self.tick_count = 0 self.vel = 0 self.height = self.y self.img_count = 0 self.img = self.imgs[0] def jump(self): self.vel = -10.5 self.tick_count = 0 self.height = self.y def move(self): self.tick_count += 1 d = self.vel*self.tick_count + 1.5*self.tick_count**2 if d >= 16: d = 16 if d < 0: d -= 2 self.y = self.y + d if d < 0 or self.y < self.height + 50: if self.tilt < self.max_rotation: self.tilt = self.max_rotation else: if self.tilt > -90: self.tilt -= self.rotation_velocity def draw(self, win): self.img_count += 1 if self.img_count < self.animation_time: self.img = self.imgs[0] elif self.img_count < self.animation_time*2: self.img = self.imgs[1] elif self.img_count < self.animation_time*3: self.img = self.imgs[2] elif self.img_count < self.animation_time*4: self.img = self.imgs[1] elif self.img_count == self.animation_time*4 + 1: self.img = self.imgs[0] self.img_count = 0 if self.tilt <= -80: self.img = self.imgs[1] self.img_count = self.animation_time*2 rotated_image = pygame.transform.rotate(self.img, self.tilt) new_rect = rotated_image.get_rect(center=self.img.get_rect(topleft = (self.x, self.y)).center) win.blit(rotated_image, new_rect.topleft) def get_mask(self): return pygame.mask.from_surface(self.img)class Pipe: gap = 200 vel = 5 def __init__(self, x): self.x = x self.height = 0 self.top = 0 self.bottom = 0 self.pipe_top = pygame.transform.flip(pipe_img, False, True) self.pipe_bottom = pipe_img self.passed = False self.set_height() def set_height(self): self.height = random.randrange(50, 450) self.top = self.height - self.pipe_top.get_height() self.bottom = self.height + self.gap def move(self): self.x -= self.vel def draw(self, win): win.blit(self.pipe_top, (self.x, self.top)) win.blit(self.pipe_bottom, (self.x, self.bottom)) def collide(self, bird): bird_mask = bird.get_mask() top_mask = pygame.mask.from_surface(self.pipe_top) bottom_mask = pygame.mask.from_surface(self.pipe_bottom) top_offset = (self.x - bird.x, self.top - round(bird.y)) bottom_offset = (self.x - bird.x, self.bottom - round(bird.y)) b_point = bird_mask.overlap(bottom_mask, bottom_offset) t_point = bird_mask.overlap(top_mask, top_offset) if t_point or b_point: return True return Falseclass Base: vel = 5 width = base_img.get_width() img = base_img def __init__(self, y): self.y = y self.x1 = 0 self.x2 = self.width def move(self): self.x1 -= self.vel self.x2 -= self.vel if self.x1 + self.width < 0: self.x1 = self.x2 + self.width if self.x2 + self.width < 0: self.x2 = self.x1 + self.width def draw(self, win): win.blit(self.img, (self.x1, self.y)) win.blit(self.img, (self.x2, self.y))def draw_window(win, bird, pipes, base, score): win.blit(bg_img, (0,0)) for pipe in pipes: pipe.draw(win) text = Stat_Font.render("Score: " + str(score), 1,(255,255,255)) win.blit(text, (win_width - 10 - text.get_width(), 10)) base.draw(win) bird.draw(win) pygame.display.update()def main(): bird = Bird(230,350) base = Base(630) pipes = [Pipe(600)] win = pygame.display.set_mode((win_width, win_height)) clock = pygame.time.Clock() run = True while run: clock.tick(30) for event in pygame.event.get(): if event.type == pygame.QUIT: run = False #bird.move() add_pipe = False rem = [] for pipe in pipes: if pipe.collide(bird): pass if pipe.x + pipe.pipe_top.get_width() < 0: rem.append(pipe) if not pipe.passed and pipe.x < bird.x: pipe.passed = True add_pipe = True pipe.move() if add_pipe: score += 1 pipes.append(Pipe(700)) for r in rem: pipes.remove(r) if bird.y + bird.img.get_height() >= 730: pass base.move() draw_window(win, bird, pipes, base, score) pygame.quit() quit()main() |
here is part 4 of the series:
https://www.youtube.com/watch?v=SYqQ5oddgcwCan anyone see what I did wrong?
