diff --git a/main.py b/main.py
deleted file mode 100644
index 2d6e7b4..0000000
--- a/main.py
+++ /dev/null
@@ -1,371 +0,0 @@
-import pygame
-import random 
-import os
-
-FPS = 60 
-WIDTH = 500
-HEIGHT = 600
-
-BLACK = (0, 0, 0)
-WHITE = (255, 255, 255)
-GREEN = (0, 255, 0)
-RED = (255, 0, 0)
-YELLOW = (255, 255, 0)
-
-pygame.init()
-pygame.mixer.init()
-screen = pygame.display.set_mode((WIDTH, HEIGHT))
-pygame.display.set_caption("打飞机")
-clock = pygame.time.Clock()
-
-background_img = pygame.image.load(os.path.join("img", "background.png")).convert()
-player_img = pygame.image.load(os.path.join("img", "player.png")).convert()
-player_mini_img = pygame.transform.scale(player_img, (25, 19))
-player_mini_img.set_colorkey(BLACK)
-pygame.display.set_icon(player_mini_img)
-enemy_img = pygame.image.load(os.path.join("img", "player.png")).convert()
-bullet_img = pygame.image.load(os.path.join("img", "bullet.png")).convert()
-rock_imgs = []
-for i in range(7):
-    rock_imgs.append(pygame.image.load(os.path.join("img", f"rock{i}.png")).convert())
-expl_anim = {}
-expl_anim['lg'] = []
-expl_anim['sm'] = []
-expl_anim['player'] = []
-for i in range(9):
-    expl_img = pygame.image.load(os.path.join("img", f"expl{i}.png")).convert()
-    expl_img.set_colorkey(BLACK)
-    expl_anim['lg'].append(pygame.transform.scale(expl_img, (75, 75)))
-    expl_anim['sm'].append(pygame.transform.scale(expl_img, (30, 30)))
-    player_expl_img = pygame.image.load(os.path.join("img", f"player_expl{i}.png")).convert()
-    player_expl_img.set_colorkey(BLACK)
-    expl_anim['player'].append(player_expl_img)
-power_imgs = {}
-power_imgs['shield'] = pygame.image.load(os.path.join("img", "shield.png")).convert()
-power_imgs['gun'] = pygame.image.load(os.path.join("img", "gun.png")).convert()
-
-# 載入音樂、音效
-shoot_sound = pygame.mixer.Sound(os.path.join("sound", "shoot.wav"))
-gun_sound = pygame.mixer.Sound(os.path.join("sound", "pow1.wav"))
-shield_sound = pygame.mixer.Sound(os.path.join("sound", "pow0.wav"))
-die_sound = pygame.mixer.Sound(os.path.join("sound", "rumble.ogg"))
-expl_sounds = [
-    pygame.mixer.Sound(os.path.join("sound", "expl0.wav")),
-    pygame.mixer.Sound(os.path.join("sound", "expl1.wav"))
-]
-pygame.mixer.music.load(os.path.join("sound", "background.ogg"))
-pygame.mixer.music.set_volume(0.4)
-
-font_name = os.path.join("font.ttf")
-def draw_text(surf, text, size, x, y):
-    font = pygame.font.Font(font_name, size)
-    text_surface = font.render(text, True, WHITE)
-    text_rect = text_surface.get_rect()
-    text_rect.centerx = x
-    text_rect.top = y
-    surf.blit(text_surface, text_rect)
-
-def new_rock():
-    r = Rock()
-    all_sprites.add(r)
-    rocks.add(r)
-
-def draw_health(surf, hp, x, y):
-    if hp < 0:
-        hp = 0
-    BAR_LENGTH = 100
-    BAR_HEIGHT = 10
-    fill = (hp/100)*BAR_LENGTH
-    outline_rect = pygame.Rect(x, y, BAR_LENGTH, BAR_HEIGHT)
-    fill_rect = pygame.Rect(x, y, fill, BAR_HEIGHT)
-    pygame.draw.rect(surf, GREEN, fill_rect)
-    pygame.draw.rect(surf, WHITE, outline_rect, 2)
-
-def draw_lives(surf, lives, img, x, y):
-    for i in range(lives):
-        img_rect = img.get_rect()
-        img_rect.x = x + 32*i
-        img_rect.y = y
-        surf.blit(img, img_rect)
-
-def draw_init():
-    screen.blit(background_img, (0,0))
-    draw_text(screen, '打飞机!', 64, WIDTH/2, HEIGHT/4)
-    draw_text(screen, '← →移动飞机', 22, WIDTH/2, HEIGHT/2)
-    draw_text(screen, '按任意键开始游戏', 18, WIDTH/2, HEIGHT*3/4)
-    pygame.display.update()
-    waiting = True
-    while waiting:
-        clock.tick(FPS)
-        # 取得輸入
-        for event in pygame.event.get():
-            if event.type == pygame.QUIT:
-                pygame.quit()
-                return True
-            elif event.type == pygame.KEYDOWN:
-                waiting = False
-                return False
-
-class Player(pygame.sprite.Sprite):
-    def __init__(self):
-        pygame.sprite.Sprite.__init__(self)
-        self.image = pygame.transform.scale(player_img, (50, 38))
-        self.image.set_colorkey(BLACK)
-        self.rect = self.image.get_rect()
-        self.radius = 20
-        # pygame.draw.circle(self.image, RED, self.rect.center, self.radius)
-        self.rect.centerx = WIDTH / 2
-        self.rect.bottom = HEIGHT - 10
-        self.speedx = 8
-        self.health = 100
-        self.lives = 3
-        self.hidden = False
-        self.hide_time = 0
-        self.gun = 1
-        self.gun_time = 0
-
-    def update(self):
-        now = pygame.time.get_ticks()
-        if self.gun > 1 and now - self.gun_time > 5000:
-            self.gun -= 1
-            self.gun_time = now
-
-        if self.hidden and now - self.hide_time > 1000:
-            self.hidden = False
-            self.rect.centerx = WIDTH / 2
-            self.rect.bottom = HEIGHT - 10
-
-        key_pressed = pygame.key.get_pressed()
-        if key_pressed[pygame.K_RIGHT]:
-            self.rect.x += self.speedx
-        if key_pressed[pygame.K_LEFT]:
-            self.rect.x -= self.speedx
-
-        if self.rect.right > WIDTH:
-            self.rect.right = WIDTH
-        if self.rect.left < 0:
-            self.rect.left = 0
-
-    def shoot(self):
-        if not(self.hidden):
-            if self.gun == 1:
-                bullet = Bullet(self.rect.centerx, self.rect.top)
-                all_sprites.add(bullet)
-                bullets.add(bullet)
-                shoot_sound.play()
-            elif self.gun >=2:
-                bullet1 = Bullet(self.rect.left, self.rect.centery)
-                bullet2 = Bullet(self.rect.right, self.rect.centery)
-                all_sprites.add(bullet1)
-                all_sprites.add(bullet2)
-                bullets.add(bullet1)
-                bullets.add(bullet2)
-                shoot_sound.play()
-
-    def hide(self):
-        self.hidden = True
-        self.hide_time = pygame.time.get_ticks()
-        self.rect.center = (WIDTH/2, HEIGHT+500)
-
-    def gunup(self):
-        self.gun += 1
-        self.gun_time = pygame.time.get_ticks()
-
-
-class enemy(pygame.sprite.Sprite):
-    def __init__(self, x=0, y=0):
-        self.x = x
-        self.y = y
-        self.screen = screen
-        self.fangxiang = 'right'
-        self.name = 'enemyer'
-        self.bullet = []
-
-    def draw(self):
-        self.screen.blit(self.image, (self.x, self.y))
-        for temp in self.bullet:
-            temp.draw()
-
-    def move(self):
-
-        if self.fangxiang == 'right':
-            self.x += 2
-        elif self.fangxiang == 'left':
-            self.x -= 2
-        if self.x > 460:
-            self.fangxiang = 'left'
-        elif self.x <= 0:
-            self.fangxiang = 'right'
-            # print(self.x)
-        randomNum = random.randint(1, 100)
-        if randomNum in [50, 70]:
-            self.bullet.append(Bullet(self.name, self.x + 30, self.y + 24))
-
-class Rock(pygame.sprite.Sprite):
-    def __init__(self):
-        pygame.sprite.Sprite.__init__(self)
-        self.image_ori = random.choice(rock_imgs) 
-        self.image_ori.set_colorkey(BLACK)
-        self.image = self.image_ori.copy()
-        self.rect = self.image.get_rect()
-        self.radius = int(self.rect.width * 0.85 / 2)
-        # pygame.draw.circle(self.image, RED, self.rect.center, self.radius)
-        self.rect.x = random.randrange(0, WIDTH - self.rect.width)
-        self.rect.y = random.randrange(-180, -100)
-        self.speedy = random.randrange(2, 5)
-        self.speedx = random.randrange(-3, 3)
-        self.total_degree = 0
-        self.rot_degree = random.randrange(-3, 3)
-
-    def rotate(self):
-        self.total_degree += self.rot_degree
-        self.total_degree = self.total_degree % 360
-        self.image = pygame.transform.rotate(self.image_ori, self.total_degree)
-        center = self.rect.center
-        self.rect = self.image.get_rect()
-        self.rect.center = center
-
-    def update(self):
-        self.rotate()
-        self.rect.y += self.speedy
-        self.rect.x += self.speedx
-        if self.rect.top > HEIGHT or self.rect.left > WIDTH or self.rect.right < 0:
-            self.rect.x = random.randrange(0, WIDTH - self.rect.width)
-            self.rect.y = random.randrange(-100, -40)
-            self.speedy = random.randrange(2, 10)
-            self.speedx = random.randrange(-3, 3)
-
-class Bullet(pygame.sprite.Sprite):
-    def __init__(self, x, y):
-        pygame.sprite.Sprite.__init__(self)
-        self.image = bullet_img
-        self.image.set_colorkey(BLACK)
-        self.rect = self.image.get_rect()
-        self.rect.centerx = x
-        self.rect.bottom = y
-        self.speedy = -10
-
-    def update(self):
-        self.rect.y += self.speedy
-        if self.rect.bottom < 0:
-            self.kill()
-
-class Explosion(pygame.sprite.Sprite):
-    def __init__(self, center, size):
-        pygame.sprite.Sprite.__init__(self)
-        self.size = size
-        self.image = expl_anim[self.size][0]
-        self.rect = self.image.get_rect()
-        self.rect.center = center
-        self.frame = 0
-        self.last_update = pygame.time.get_ticks()
-        self.frame_rate = 50
-
-    def update(self):
-        now = pygame.time.get_ticks()
-        if now - self.last_update > self.frame_rate:
-            self.last_update = now
-            self.frame += 1
-            if self.frame == len(expl_anim[self.size]):
-                self.kill()
-            else:
-                self.image = expl_anim[self.size][self.frame]
-                center = self.rect.center
-                self.rect = self.image.get_rect()
-                self.rect.center = center
-
-class Power(pygame.sprite.Sprite):
-    def __init__(self, center):
-        pygame.sprite.Sprite.__init__(self)
-        self.type = random.choice(['shield', 'gun'])
-        self.image = power_imgs[self.type]
-        self.image.set_colorkey(BLACK)
-        self.rect = self.image.get_rect()
-        self.rect.center = center
-        self.speedy = 3
-
-    def update(self):
-        self.rect.y += self.speedy
-        if self.rect.top > HEIGHT:
-            self.kill()
-
-
-pygame.mixer.music.play(-1)
-
-# 遊戲迴圈
-show_init = True
-running = True
-while running:
-    if show_init:
-        close = draw_init()
-        if close:
-            break
-        show_init = False
-        all_sprites = pygame.sprite.Group()
-        rocks = pygame.sprite.Group()
-        bullets = pygame.sprite.Group()
-        powers = pygame.sprite.Group()
-        player = Player()
-        all_sprites.add(player)
-        for i in range(8):
-            new_rock()
-        score = 0
-    
-    clock.tick(FPS)
-    for event in pygame.event.get():
-        if event.type == pygame.QUIT:
-            running = False
-        elif event.type == pygame.KEYDOWN:
-            if event.key == pygame.K_SPACE:
-                player.shoot()
-
-    all_sprites.update()
-    hits = pygame.sprite.groupcollide(rocks, bullets, True, True)
-    for hit in hits:
-        random.choice(expl_sounds).play()
-        score += hit.radius
-        expl = Explosion(hit.rect.center, 'lg')
-        all_sprites.add(expl)
-        if random.random() > 0.9:
-            pow = Power(hit.rect.center)
-            all_sprites.add(pow)
-            powers.add(pow)
-        new_rock()
-
-    hits = pygame.sprite.spritecollide(player, rocks, True, pygame.sprite.collide_circle)
-    for hit in hits:
-        new_rock()
-        player.health -= hit.radius * 2
-        expl = Explosion(hit.rect.center, 'sm')
-        all_sprites.add(expl)
-        if player.health <= 0:
-            death_expl = Explosion(player.rect.center, 'player')
-            all_sprites.add(death_expl)
-            die_sound.play()
-            player.lives -= 1
-            player.health = 100
-            player.hide()
-
-    hits = pygame.sprite.spritecollide(player, powers, True)
-    for hit in hits:
-        if hit.type == 'shield':
-            player.health += 20
-            if player.health > 100:
-                player.health = 100
-            shield_sound.play()
-        elif hit.type == 'gun':
-            player.gunup()
-            gun_sound.play()
-
-    if player.lives == 0 and not(death_expl.alive()):
-        show_init = True
-
-    screen.fill(BLACK)
-    screen.blit(background_img, (0,0))
-    all_sprites.draw(screen)
-    draw_text(screen, str(score), 18, WIDTH/2, 10)
-    draw_health(screen, player.health, 5, 15)
-    draw_lives(screen, player.lives, player_mini_img, WIDTH - 100, 15)
-    pygame.display.update()
-
-pygame.quit()
\ No newline at end of file