1 项目简介
项目名称：python飞机大战
用到关键知识：pygame模块，python基础，os文件读写，以及面向对象思想方法！
实现功能：
1：飞机的移动，发射子弹，手雷，生命值，生命条
2：敌飞机有3种形态（小，中，大）不同的飞机大小不一样，生命值不一样，爆炸动画也不一样
3：背景音乐，子弹击中敌机会发生碰撞的爆炸动画和音效
4：随机产生补给（双射子弹和全屏炸弹）
5：难度逐渐增加（同一屏幕出现的飞机更多）
6：历史最高分纪录
项目分析：一个类文件（Main.py）,音乐音效共计10余种，照片素材共计30余张，代码共计800行左右！
2 项目代码
代码如下：（一个类文件（800行代码））
import pygame
import sys
import traceback
from pygame.locals import *
from random import *
pygame.init()
pygame.mixer.init()
bg_size = width, height = 480, 700
screen = pygame.display.set_mode(bg_size)
pygame.display.set_caption('飞机大战')
background = pygame.image.load('images/background.png').convert()
# 定义颜色
BLACK = (0, 0, 0)
GREEN = (0, 255, 0)
RED = (255, 0, 0)
WHITE = (255, 255, 255)
# 载入音乐
pygame.mixer.music.load('sound/bjmusic.wav')
pygame.mixer.music.set_volume(0.1)
bullet_sound = pygame.mixer.Sound('sound/bullet.wav')
bullet_sound.set_volume(0.2)
bomb_sound = pygame.mixer.Sound('sound/use_bomb.wav')
bomb_sound.set_volume(0.2)
supply_sound = pygame.mixer.Sound('sound/supply.wav')
supply_sound.set_volume(0.2)
get_bomb_sound = pygame.mixer.Sound('sound/get_bomb.wav')
get_bomb_sound.set_volume(0.2)
get_bullet_sound = pygame.mixer.Sound('sound/get_bullet.wav')
get_bullet_sound.set_volume(0.2)
upgrade_sound = pygame.mixer.Sound('sound/upgrade.wav')
upgrade_sound.set_volume(0.2)
enemy3_fly_sound = pygame.mixer.Sound('sound/enemy3_flying.wav')
enemy3_fly_sound.set_volume(0.6)
enemy1_down_sound = pygame.mixer.Sound('sound/enemy1_down.wav')
enemy1_down_sound.set_volume(0.2)
enemy2_down_sound = pygame.mixer.Sound('sound/enemy2_down.wav')
enemy2_down_sound.set_volume(0.2)
enemy3_down_sound = pygame.mixer.Sound('sound/enemy3_down.wav')
enemy3_down_sound.set_volume(0.2)
me_down_sound = pygame.mixer.Sound('sound/me_down.wav')
me_down_sound.set_volume(0.2)
# 设置我的飞机类：设置我的飞机类：设置我的飞机类：设置我的飞机类：设置我的飞机类
class MyPlane(pygame.sprite.Sprite):
def __init__(self, bg_size):
super(MyPlane, self).__init__()
self.image1 = pygame.image.load('images/me1.png').convert_alpha()
self.image2 = pygame.image.load('images/me2.png').convert_alpha()
self.destroy_images = []
self.destroy_images.extend([
pygame.image.load('images/me_destroy_1.png').convert_alpha(),
pygame.image.load('images/me_destroy_2.png').convert_alpha(),
pygame.image.load('images/me_destroy_3.png').convert_alpha(),
pygame.image.load('images/me_destroy_4.png').convert_alpha()
])
self.rect = self.image1.get_rect()
self.width, self.height = bg_size[0], bg_size[1]
self.active = True
self.invincible = False
self.mask = pygame.mask.from_surface(self.image2)
self.rect.left, self.rect.top = (self.width - self.rect.width) // 2, self.height - self.rect.height - 60
self.speed = 10
def moveUp(self):
if self.rect.top > 0:
self.rect.top -= self.speed
else:
self.rect.top = 0
def moveDown(self):
if self.rect.bottom < self.height - 60:
self.rect.bottom += self.speed
else:
self.rect.bottom = self.height - 60
def moveLeft(self):
if self.rect.left > 0:
self.rect.left -= self.speed
else:
self.rect.left = 0
def moveRight(self):
if self.rect.right < self.width:
self.rect.right += self.speed
else:
self.rect.right = self.width
def reset(self):
self.rect.left, self.rect.top = (self.width - self.rect.width) // 2, self.height - self.rect.height - 60
self.active = True
self.invincible = True
# 设置敌人的飞机：# 设置敌人的飞机：# 设置敌人的飞机：# 设置敌人的飞机：# 设置敌人的飞机
class SmallEnemy(pygame.sprite.Sprite):
energy = 1
def __init__(self, bg_size):
super(SmallEnemy, self).__init__()
self.image = pygame.image.load('images/enemy1.png').convert_alpha()
self.destroy_images = []
self.destroy_images.extend([
pygame.image.load('images/enemy1_down1.png').convert_alpha(),
pygame.image.load('images/enemy1_down2.png').convert_alpha(),
pygame.image.load('images/enemy1_down3.png').convert_alpha(),
pygame.image.load('images/enemy1_down4.png').convert_alpha()
])
self.rect = self.image.get_rect()
self.width, self.height = bg_size[0], bg_size[1]
self.active = True
self.mask = pygame.mask.from_surface(self.image)
self.speed = 2
self.reset()
self.energy = SmallEnemy.energy
self.hit = False
def move(self):
if self.rect.top < self.height:
self.rect.top += self.speed
else:
self.reset()
def reset(self):
self.rect.left, self.rect.top = randint(0, self.width - self.rect.width), randint(-5 * self.height, 0)
self.active = True
self.energy = SmallEnemy.energy
class MidEnemy(pygame.sprite.Sprite):
energy = 8
def __init__(self, bg_size):
super(MidEnemy, self).__init__()
self.image = pygame.image.load('images/enemy2.png').convert_alpha()
self.destroy_images = []
self.destroy_images.extend([
pygame.image.load('images/enemy2_down1.png').convert_alpha(),
pygame.image.load('images/enemy2_down2.png').convert_alpha(),
pygame.image.load('images/enemy2_down3.png').convert_alpha(),
pygame.image.load('images/enemy2_down4.png').convert_alpha()
])
self.image_hit = pygame.image.load('images/enemy2_hit.png').convert_alpha()
self.rect = self.image.get_rect()
self.width, self.height = bg_size[0], bg_size[1]
self.active = True
self.speed = 1
self.mask = pygame.mask.from_surface(self.image)
self.reset()
self.energy = MidEnemy.energy
self.hit = False
def move(self):
if self.rect.top < self.height:
self.rect.top += self.speed
else:
self.reset()
def reset(self):
self.rect.left, self.rect.top = randint(0, self.width - self.rect.width), randint(-10 * self.height, -self.height)
self.active = True
self.energy = MidEnemy.energy
class BigEnemy(pygame.sprite.Sprite):
energy = 20
def __init__(self, bg_size):
super(BigEnemy, self).__init__()
self.image1 = pygame.image.load('images/enemy3_n1.png').convert_alpha()
self.image2 = pygame.image.load('images/enemy3_n2.png').convert_alpha()
self.destroy_images = []
self.destroy_images.extend([
pygame.image.load('images/enemy3_down1.png').convert_alpha(),
pygame.image.load('images/enemy3_down2.png').convert_alpha(),
pygame.image.load('images/enemy3_down3.png').convert_alpha(),
pygame.image.load('images/enemy3_down4.png').convert_alpha(),
pygame.image.load('images/enemy3_down5.png').convert_alpha(),
pygame.image.load('images/enemy3_down6.png').convert_alpha()
])
self.image_hit = pygame.image.load('images/enemy3_hit.png').convert_alpha()
self.rect = self.image1.get_rect()
self.width, self.height = bg_size[0], bg_size[1]
self.active = True
self.speed = 1
self.mask = pygame.mask.from_surface(self.image1)
self.appear = False
self.reset()
self.energy = BigEnemy.energy
self.hit = False
def move(self):
if self.rect.top < self.height:
self.rect.top += self.speed
else:
self.reset()
def reset(self):
self.rect.left, self.rect.top = randint(0, self.width - self.rect.width), randint(-20 * self.height, -10 * self.height)
self.active = True
self.energy = BigEnemy.energy
# 设置补给：# 设置补给：# 设置补给：# 设置补给：# 设置补给
class Bullet_Supply(pygame.sprite.Sprite):
def __init__(self, bg_size):
super(Bullet_Supply, self).__init__()
self.image = pygame.image.load('images/bullet_supply.png').convert_alpha()
self.rect = self.image.get_rect()
self.width, self.height = bg_size[0], bg_size[1]
self.rect.left, self.rect.bottom = randint(0, self.width - self.rect.width), -100
self.speed = 5
self.active = False
self.mask = pygame.mask.from_surface(self.image)
def move(self):
if self.rect.top < self.height:
self.rect.top += self.speed
else:
self.active = False
def reset(self):
self.active = True
self.rect.left, self.rect.bottom = randint(0, self.width - self.rect.width), -100
class Bomb_Supply(pygame.sprite.Sprite):
def __init__(self, bg_size):
super(Bomb_Supply, self).__init__()
self.image = pygame.image.load('images/bomb_supply.png').convert_alpha()
self.rect = self.image.get_rect()
self.width, self.height = bg_size[0], bg_size[1]
self.rect.left, self.rect.bottom = randint(0, self.width - self.rect.width), -100
self.speed = 5
self.active = False
self.mask = pygame.mask.from_surface(self.image)
def move(self):
if self.rect.top < self.height:
self.rect.top += self.speed
else:
self.active = False
def reset(self):
self.active = True
self.rect.left, self.rect.bottom = randint(0, self.width - self.rect.width), -100
# 设置我方发射子弹类
class Bullet1(pygame.sprite.Sprite):
def __init__(self, position):
super(Bullet1, self).__init__()
self.image = pygame.image.load("images/bullet1.png").convert_alpha()
self.rect = self.image.get_rect()
self.rect.left, self.rect.top = position
self.speed = 12
self.active = True
self.mask = pygame.mask.from_surface(self.image)
def move(self):
self.rect.top -= self.speed
if self.rect.top < 0:
self.active = False
def reset(self, position):
self.rect.left, self.rect.top = position
self.active = True
class Bullet2(pygame.sprite.Sprite):
def __init__(self, position):
super(Bullet2, self).__init__()
self.image = pygame.image.load("images/bullet2.png").convert_alpha()
self.rect = self.image.get_rect()
self.rect.left, self.rect.top = position
self.speed = 14
self.active = False
self.mask = pygame.mask.from_surface(self.image)
def move(self):
self.rect.top -= self.speed
if self.rect.top < 0:
self.active = False
def reset(self, position):
self.rect.left, self.rect.top = position
self.active = True
# 主程序的实现 ：# 主程序的实现 ：# 主程序的实现 ：# 主程序的实现 ：# 主程序的实现
def add_small_enemies(group1, group2, num):
for i in range(num):
e1 = SmallEnemy(bg_size)
group1.add(e1)
group2.add(e1)
def add_mid_enemies(group1, group2, num):
for i in range(num):
e2 = MidEnemy(bg_size)
group1.add(e2)
group2.add(e2)
def add_big_enemies(group1, group2, num):
for i in range(num):
e3 = BigEnemy(bg_size)
group1.add(e3)
group2.add(e3)
def inc_speed(target, inc):
for each in target:
each.speed += inc
def main():
# 播放音乐
pygame.mixer.music.play(-1)
# 实例化我方飞机
me =MyPlane(bg_size=bg_size)
# 实例化敌方飞机
enemies = pygame.sprite.Group()
# 实例化敌方小型飞机
small_enemies = pygame.sprite.Group()
add_small_enemies(small_enemies, enemies, 15)
# 实例化敌方中型飞机
mid_enemies = pygame.sprite.Group()
add_mid_enemies(mid_enemies, enemies, 4)
# 实例化敌方大型飞机
big_enemies = pygame.sprite.Group()
add_big_enemies(big_enemies, enemies, 2)
# 实例化普通子弹
bullet1 = []
bullet1_index = 0
BULLET1_NUM = 4
for i in range(BULLET1_NUM):
bullet1.append(Bullet1((me.rect.centerx-10 , me.rect.centery)))
# 实例超级子弹
bullet2 = []
bullet2_index = 0
BULLET2_NUM = 8
for i in range(BULLET2_NUM // 2):
bullet2.append(Bullet2((me.rect.centerx - 33, me.rect.centery)))
bullet2.append(Bullet2((me.rect.centerx + 30, me.rect.centery)))
# 中弹图片索引
e1_destroy_index = 0
e2_destroy_index = 0
e3_destroy_index = 0
me_destroy_index = 0
# 统计得分
score = 0
score_font = pygame.font.Font("font/font1.ttf", 36)
# 标志是否暂停游戏
paused = False
paused_nor_image = pygame.image.load("images/pause_nor.png").convert_alpha()
paused_pressed_image = pygame.image.load( "images/pause_pressed.png").convert_alpha()
resume_nor_image = pygame.image.load('images/resume_nor.png').convert_alpha()
resume_pressed_image = pygame.image.load('images/resume_pressed.png').convert_alpha()
paused_rect = paused_nor_image.get_rect()
paused_rect.left, paused_rect.top = width - paused_rect.width - 10, 10
paused_image = paused_nor_image
# 设置难度
level = 1
# 全屏炸弹
bomb_image = pygame.image.load('images/bomb.png').convert_alpha()
bomb_rect = bomb_image.get_rect()
bomb_font = pygame.font.Font("font/font1.ttf", 48)
bomb_num = 3
# 每20秒发放一个补给包
bullet_supply = Bullet_Supply(bg_size)
bomb_supply = Bomb_Supply(bg_size)
SUPPLY_TIME = USEREVENT
pygame.time.set_timer(SUPPLY_TIME, 20 * 1000)
DOUBLE_BULLTET_TIME = USEREVENT + 1
INVINCIBLE_TIME = USEREVENT + 2
# 标志是否使用超级子弹
is_double_bullet = False
# 生命数量
life_image = pygame.image.load('images/life.png').convert_alpha()
life_rect = life_image.get_rect()
life_num = 3
# 用于切换我方飞机图片
switch_plane = True
# 游戏结束画面
gameover_font = pygame.font.Font("font/font1.TTF", 48)
again_image = pygame.image.load("images/again.png").convert_alpha()
again_rect = again_image.get_rect()
gameover_image = pygame.image.load("images/gameover.png").convert_alpha()
gameover_rect = gameover_image.get_rect()
# 用于延迟切换
delay = 100
recorded = False
clock = pygame.time.Clock()
running = True
while running:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
elif event.type == MOUSEBUTTONDOWN:
if event.button == 1 and paused_rect.collidepoint(event.pos):
paused = not paused
if paused:
pygame.time.set_timer(SUPPLY_TIME, 0)
pygame.mixer.music.pause()
pygame.mixer.pause()
else:
pygame.time.set_timer(SUPPLY_TIME, 20 * 1000)
pygame.mixer.music.unpause()
pygame.mixer.unpause()
elif event.type == MOUSEMOTION:
if paused_rect.collidepoint(event.pos):
if paused:
paused_image = resume_pressed_image
else:
paused_image = paused_pressed_image
else:
if paused:
paused_image = resume_nor_image
else:
paused_image = paused_nor_image
elif event.type == KEYDOWN:
if event.key == K_SPACE:
if bomb_num:
bomb_num -= 1
bomb_sound.play()
for each in enemies:
if each.rect.bottom > 0:
each.active = False
elif event.type == SUPPLY_TIME:
supply_sound.play()
if choice([True, False]):
bomb_supply.reset()
else:
bullet_supply.reset()
elif event.type == DOUBLE_BULLTET_TIME:
is_double_bullet = False
pygame.time.set_timer(DOUBLE_BULLTET_TIME, 0)
elif event.type == INVINCIBLE_TIME:
me.invincible = False
pygame.time.set_timer(INVINCIBLE_TIME, 0)
# 根据用户得分增加难度
if level == 1 and score > 5000:
level = 2
upgrade_sound.play()
# 增加3架小型敌机, 2架中型敌机和1架大型敌机
add_small_enemies(small_enemies, enemies, 3)
add_mid_enemies(mid_enemies, enemies, 2)
add_big_enemies(big_enemies, enemies, 1)
# 提升小型敌机的速度
inc_speed(target=small_enemies, inc=1)
elif level == 2 and score > 30000:
level = 3
upgrade_sound.play()
# 增加5架小型敌机, 3架中型敌机和2架大型敌机
add_small_enemies(small_enemies, enemies, 5)
add_mid_enemies(mid_enemies, enemies, 3)
add_big_enemies(big_enemies, enemies, 2)
# 提升小型敌机的速度
inc_speed(target=small_enemies, inc=1)
inc_speed(target=mid_enemies, inc=1)
elif level == 3 and score > 60000:
level = 4
upgrade_sound.play()
# 增加5架小型敌机, 3架中型敌机和2架大型敌机
add_small_enemies(small_enemies, enemies, 5)
add_mid_enemies(mid_enemies, enemies, 3)
add_big_enemies(big_enemies, enemies, 2)
# 提升小型敌机的速度
inc_speed(target=small_enemies, inc=1)
inc_speed(target=mid_enemies, inc=1)
elif level == 4 and score > 100000:
level = 5
upgrade_sound.play()
# 增加5架小型敌机, 3架中型敌机和2架大型敌机
add_small_enemies(small_enemies, enemies, 5)
add_mid_enemies(mid_enemies, enemies, 3)
add_big_enemies(big_enemies, enemies, 2)
# 提升小型敌机的速度
inc_speed(target=small_enemies, inc=1)
inc_speed(target=mid_enemies, inc=1)
inc_speed(target=big_enemies, inc=1)
screen.blit(background, (0, 0))
if life_num and not paused:
# 检测键盘按键操作
key_pressed = pygame.key.get_pressed()
if key_pressed[K_w] or key_pressed[K_UP]:
me.moveUp()
if key_pressed[K_s] or key_pressed[K_DOWN]:
me.moveDown()
if key_pressed[K_a] or key_pressed[K_LEFT]:
me.moveLeft()
if key_pressed[K_d] or key_pressed[K_RIGHT]:
me.moveRight()
# 绘制全屏炸弹补给
if bomb_supply.active:
bomb_supply.move()
screen.blit(bomb_supply.image, bomb_supply.rect)
if pygame.sprite.collide_mask(me, bomb_supply):
get_bomb_sound.play()
if bomb_num < 3:
bomb_num += 1
bomb_supply.active = False
# 绘制超级子弹补给
if bullet_supply.active:
bullet_supply.move()
screen.blit(bullet_supply.image, bullet_supply.rect)
if pygame.sprite.collide_mask(me, bullet_supply):
get_bullet_sound.play()
# 发射超级子弹
is_double_bullet = True
pygame.time.set_timer(DOUBLE_BULLTET_TIME, 18 * 1000)
bullet_supply.active = False
# 发射子弹
if not(delay % 10):
bullet_sound.play()
if is_double_bullet:
bullets = bullet2
bullets[bullet2_index].reset(
(me.rect.centerx - 40, me.rect.centery))
bullets[bullet2_index +
1].reset((me.rect.centerx + 20, me.rect.centery))
bullet2_index = (bullet2_index + 2) % BULLET2_NUM
else:
bullets = bullet1
bullets[bullet1_index].reset((me.rect.centerx-10, me.rect.centery-10))
bullet1_index = (bullet1_index + 1) % BULLET1_NUM
# 碰撞检测 检测子弹是否击中敌机
for b in bullets:
if b.active:
b.move()
screen.blit(b.image, b.rect)
enemy_hit = pygame.sprite.spritecollide(
b, enemies, False, pygame.sprite.collide_mask)
if enemy_hit:
b.active = False
for each in enemy_hit:
each.hit = True
each.energy -= 1
if each.energy == 0:
each.active = False
# 绘制敌方大型机
for each in big_enemies:
if each.active:
each.move()
if each.hit:
screen.blit(each.image_hit, each.rect)
each.hit = False
else:
if switch_plane:
screen.blit(each.image1, each.rect)
else:
screen.blit(each.image2, each.rect)
# 绘制血条
pygame.draw.line(screen, BLACK,
(each.rect.left, each.rect.top - 5),
(each.rect.right, each.rect.top - 5),
2)
energy_remain = each.energy / BigEnemy.energy
if energy_remain > 0.2:
energy_color = GREEN
else:
energy_color = RED
pygame.draw.line(screen, energy_color,
(each.rect.left, each.rect.top - 5),
(each.rect.left + each.rect.width * energy_remain,
each.rect.top - 5),
2)
if each.rect.bottom == -10:
enemy3_fly_sound.play(-1)
each.appear = True
# 离开画面, 关闭音效
if each.rect.bottom < -10 and each.appear:
enemy3_fly_sound.stop()
each.appear = False
else:
# 毁灭
if e3_destroy_index == 0:
enemy3_down_sound.play()
if not(delay % 2):
screen.blit(each.destroy_images[
e3_destroy_index], each.rect)
e3_destroy_index = (e3_destroy_index + 1) % 6
if e3_destroy_index == 0:
enemy3_fly_sound.stop()
score += 1000
each.reset()
# 绘制敌方中型机
for each in mid_enemies:
if each.active:
each.move()
if each.hit:
screen.blit(each.image_hit, each.rect)
each.hit = False
else:
screen.blit(each.image, each.rect)
# 绘制血槽
pygame.draw.line(screen, BLACK,
(each.rect.left, each.rect.top - 5),
(each.rect.right, each.rect.top - 5),
2)
# 当生命大于20%显示绿色, 否则显示红色
energy_remain = each.energy / MidEnemy.energy
if energy_remain > 0.2:
energy_color = GREEN
else:
energy_color = RED
pygame.draw.line(screen, energy_color,
(each.rect.left, each.rect.top - 5),
(each.rect.left + each.rect.width * energy_remain,
each.rect.top - 5),
2)
else:
# 毁灭
if e2_destroy_index == 0:
enemy2_down_sound.play()
if not(delay % 2):
screen.blit(each.destroy_images[
e2_destroy_index], each.rect)
e2_destroy_index = (e2_destroy_index + 1) % 4
if e2_destroy_index == 0:
score += 600
each.reset()
# 绘制敌方小型机
for each in small_enemies:
if each.active:
each.move()
screen.blit(each.image, each.rect)
else:
# 毁灭
if e1_destroy_index == 0:
enemy1_down_sound.play()
if not(delay % 2):
screen.blit(each.destroy_images[
e1_destroy_index], each.rect)
e1_destroy_index = (e1_destroy_index + 1) % 4
if e1_destroy_index == 0:
score += 100
each.reset()
# 检测我方飞机碰撞
enemies_down = pygame.sprite.spritecollide(
me, enemies, False, pygame.sprite.collide_mask)
if enemies_down and not me.invincible:
me.active = False
for each in enemies_down:
each.active = False
# 绘制我方飞机
if me.active:
if switch_plane:
screen.blit(me.image1, me.rect)
else:
screen.blit(me.image2, me.rect)
else:
# 毁灭
if me_destroy_index == 0:
me_down_sound.play()
if not(delay % 2):
screen.blit(me.destroy_images[me_destroy_index], me.rect)
me_destroy_index = (me_destroy_index + 1) % 4
if me_destroy_index == 0:
life_num -= 1
me.reset()
pygame.time.set_timer(INVINCIBLE_TIME, 3 * 1000)
# 绘制全屏炸弹数量
bomb_text = bomb_font.render("× %d" % bomb_num, True, WHITE)
text_rect = bomb_text.get_rect()
screen.blit(bomb_image, (10, height - 10 - bomb_rect.height))
screen.blit(bomb_text, (20 + bomb_rect.width,height - 5 - text_rect.height))
# 绘制剩余生命数量
if life_num:
for i in range(life_num):
screen.blit(life_image,
((width - 10 - (i + 1) * life_rect.width),
height - 10 - life_rect.height))
# 绘制得分
score_text = score_font.render('Score : %d' % score, True, WHITE)
screen.blit(score_text, (10, 5))
# 绘制游戏结束画面
elif life_num == 0:
# 背景音乐停止
pygame.mixer.music.stop()
pygame.mixer.stop()
# 停止发放补给
pygame.time.set_timer(SUPPLY_TIME, 0)
if not recorded:
recorded =True
# 读取历史最高分
with open('record.txt', 'r') as f:
record_score = int(f.read())
# 判断是否高于历史最高分
if score > record_score:
with open('record.txt', 'w') as f:
f.write(str(score))
# 绘制结束界面
record_score_text = score_font.render("Best : %d" % record_score, True, (255, 255, 255))
screen.blit(record_score_text, (10, 45))
gameover_text1 = gameover_font.render("Your Score", True, (255, 255, 255))
gameover_text1_rect = gameover_text1.get_rect()
gameover_text1_rect.left, gameover_text1_rect.top = (width - gameover_text1_rect.width) // 2, height // 3
screen.blit(gameover_text1, gameover_text1_rect)
gameover_text2 = gameover_font.render(str(score), True, (255, 255, 255))
gameover_text2_rect = gameover_text2.get_rect()
gameover_text2_rect.left, gameover_text2_rect.top =(width - gameover_text2_rect.width) // 2, gameover_text1_rect.bottom + 10
screen.blit(gameover_text2, gameover_text2_rect)
again_rect.left, again_rect.top = (width - again_rect.width) // 2, gameover_text2_rect.bottom + 50
screen.blit(again_image, again_rect)
gameover_rect.left, gameover_rect.top = (width - again_rect.width) // 2, again_rect.bottom + 10
screen.blit(gameover_image, gameover_rect)
# 如果用户按下鼠标左键
if pygame.mouse.get_pressed()[0]:
# 获取鼠标坐标
pos = pygame.mouse.get_pos()
if again_rect.left < pos[0] < again_rect.right and again_rect.top < pos[1] < again_rect.bottom:
main()
elif gameover_rect.left < pos[0] < gameover_rect.right and gameover_rect.top < pos[1] < gameover_rect.bottom:
pygame.quit()
sys.exit()
screen.blit(paused_image, paused_rect)
if not(delay % 11):
switch_plane = not switch_plane
delay -= 1
if not delay:
delay = 100
pygame.display.flip()
clock.tick(60)
if __name__ == '__main__':
main()
3 项目代码解读
3.1 核心模块组成：
- 初始化模块：游戏环境配置与资源加载
- 对象类体系：飞机、子弹、补给等游戏元素
- 主循环控制：事件处理与游戏状态管理
- 碰撞系统：精确像素级碰撞检测
- 视听系统：背景音乐与特效音管理
3.2 核心类设计解析
3.2.1玩家战机类（MyPlane）
class MyPlane(pygame.sprite.Sprite):
def __init__(self, bg_size):
# 双形态动画资源
self.image1 = pygame.image.load('images/me1.png')
self.image2 = pygame.image.load('me2.png')
# 无敌状态管理
self.invincible = False
self.reset() # 位置重置
# 四向移动控制（边界限制）
def moveUp(self):
if self.rect.top > 0:
self.rect.top -= self.speed
功能亮点：
- 双形态动画切换（
switch_plane控制） - 复活后3秒无敌（
INVINCIBLE_TIME事件） - 碰撞盒精确计算（
pygame.mask）
3.2.2. 敌机体系（继承结构）
| 机型 | 血量 | 速度 | 特殊机制 |
|---|---|---|---|
| 小型敌机 | 1 | 2 | 批量生成 |
| 中型敌机 | 8 | 1 | 受击特效 |
| 大型敌机 | 20 | 1 | 血条显示/特殊出场音效 |
class BigEnemy(pygame.sprite.Sprite):
def __init__(self, bg_size):
# 血条绘制逻辑
pygame.draw.line(screen, energy_color,
(rect.left, rect.top-5),
(rect.left + width*energy_remain, rect.top-5), 2)
3.2.3. 补给系统
class Bullet_Supply(pygame.sprite.Sprite):
def reset(self):
self.rect.left = randint(0, self.width)
self.active = True # 激活状态
补给类型：
- 弹药补给：激活双倍子弹（18秒）
- 炸弹补给：补充全屏炸弹（上限3个）
3.3 核心游戏机制
3.3.1. 动态难度系统
if level == 1 and score > 5000:
add_small_enemies(3)
inc_speed(small_enemies, 1)
难度阶段：
| 等级 | 触发分数 | 新增敌机 | 速度提升 |
|---|---|---|---|
| 1 | 5000 | 小3/中2/大1 | 小型机+1 |
| 2 | 30000 | 小5/中3/大2 | 小+1/中+1 |
| 3 | 60000 | 小5/中3/大2 | 小+1/中+1 |
| 4 | 100000 | 小5/中3/大2 | 全类型+1 |
3.3.2. 碰撞检测系统
# 精确到像素级的碰撞检测
enemy_hit = pygame.sprite.spritecollide(
bullet, enemies, False, pygame.sprite.collide_mask)
3.3.3. 武器系统
| 子弹类型 | 速度 | 发射方式 | 特效 |
|---|---|---|---|
| 普通子弹 | 12 | 单发居中 | 常规攻击 |
| 超级子弹 | 14 | 双发侧翼 | 穿透/增强伤害 |
3.4 关键实现细节
3.4.1. 动画系统
# 飞机形态切换（主循环中）
if not(delay % 11):
switch_plane = not switch_plane
# 爆炸动画播放
if not(delay % 2):
screen.blit(destroy_images[index], rect)
3.4.2. 音效管理
# 分级音量控制
bullet_sound.set_volume(0.2)
enemy3_fly_sound.set_volume(0.6)
# 事件触发音效
SUPPLY_TIME = USEREVENT
pygame.time.set_timer(SUPPLY_TIME, 20*1000)
3.4. 3. 游戏状态保存
# 最高分记录系统
with open('record.txt', 'r') as f:
record = int(f.read())
if score > record:
with open('record.txt', 'w') as f:
f.write(str(score))3.5 游戏流程图解
通过这个经典案例，我们可以学习到PyGame游戏开发的核心模式，包括游戏循环构建、精灵系统应用、碰撞检测优化等重要技术点。代码结构清晰，模块划分合理，是学习2D游戏开发的优秀范例。
4 部分运行截图
最后：需要该项目的同学可以私信我或者添加我下方名片获取~
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