项目名称：太空大战

开发环境：Python3.6.4

第三方库：Pygame1.9.6

代码编辑器：Sublime Text

先来看一下游戏画面吧！  游戏画面动态且丰富哦！

需求分析

• 利用Python开发一个太空大战，提供UI，Bgm，丰富的游戏图片素材，左上角拥有玩家的生命进度条且能够动态变化，右上角拥有玩家的生命条数
• 游戏精灵能够动态交互，打败敌人能够有动态的爆炸效果(用静态图片循环播放可实现)，且打败敌人能够随机的掉落火箭，增加生命进度甚至增加生命条数(有一个所获几率的控制)的游戏精灵，打败敌人能够获得分数
• 算法设计：能够根据玩家的生命进度及生命条数调整游戏难度和获得火箭，生命数等精灵的概率
• 设计动态地图，使游戏更加动态化以及游戏化

功能模块：

• 库的导入

  1 import pygame
  2 import random
  3 from os import path
  4 import sys
  5 from pygame.locals import *
  6 import math
  7 from datetime import datetime, date, time

• 图片导入

   1 img_dir = path.join(path.dirname(__file__),'img')
   2 background_dir = path.join(img_dir,'space.png')
   3 background_img1 = pygame.image.load(background_dir).convert()
   4 background_img2 = pygame.image.load(background_dir).convert()
   5 background_img3 = pygame.image.load('img/space.png').convert()
   6 background_rect = background_img1.get_rect()
   7 player_dir = path.join(img_dir,'spaceShips_005.png')
   8 player_img = pygame.image.load(player_dir).convert()
   9 player_img_small = pygame.transform.scale(player_img,(26,20))
  10 player_img_small.set_colorkey((0,0,0))
  11 enemy_dir = path.join(img_dir,'spaceMeteors_004.png')
  12 enemy_img = pygame.image.load(enemy_dir).convert()
  13 bullet_dir = path.join(img_dir,'bullet.png')
  14 bullet_img = pygame.image.load(bullet_dir).convert_alpha()
  15 missile_dir = path.join(img_dir,'spaceMissiles_040.png')
  16 missile_img = pygame.image.load(missile_dir).convert()
  17 spaceship_dir = path.join(img_dir,'spaceShips_007.png')
  18 spaceship_img = pygame.image.load(spaceship_dir).convert()
  19 spaceship_bullet_dir = path.join(img_dir,'spaceMissiles_001.png')
  20 spaceship_bullet_img = pygame.image.load(spaceship_bullet_dir).convert()

• Bgm及音效文件的导入

  1 sound_dir = path.join(path.dirname(__file__),'sound')
  2 shoot_sound = pygame.mixer.Sound(path.join(sound_dir,'Laser_Shoot14.wav'))
  3 explosion_sound = pygame.mixer.Sound(path.join(sound_dir,'Explosion7.wav'))
  4 missile_sound = pygame.mixer.Sound(path.join(sound_dir,'Laser_Shoot5.wav'))
  5 pygame.mixer.music.load(path.join(sound_dir,'background_01.wav'))

• 游戏精灵类的创建

   1 class Player(pygame.sprite.Sprite):
   2 
   3     def __init__(self):
   4         pygame.sprite.Sprite.__init__(self)
   5 #        self.image = pygame.Surface((50,50))
   6         self.image = pygame.transform.flip(player_img,False,True)
   7         self.image = pygame.transform.scale(self.image,(53,40))
   8         self.image.set_colorkey((0,0,0))
   9 #        self.image.fill((0,255,0))
  10         self.rect = self.image.get_rect()
  11         self.rect.centerx = WIDTH/2
  12         self.rect.bottom = HEIGHT
  13         self.radius = 20
  14         self.score = 0
  15 
  16 
  17         self.hp = 100
  18         self.lives =3
  19         self.hidden = False
  20         self.hide_time = 0
  21 
  22         self.is_missile_firing = False
  23         self.start_missile_time = 0
  24         self.last_missile_time = 0
  25 
  26 
  27 
  28 
  29     def update(self):
  30         key_state = pygame.key.get_pressed()
  31         if key_state[pygame.K_LEFT] or key_state[pygame.K_a]:
  32             self.rect.x -= 5
  33         if key_state[pygame.K_RIGHT] or key_state[pygame.K_d]:
  34             self.rect.x += 5
  35         if key_state[pygame.K_UP] or key_state[pygame.K_w]:
  36             self.rect.y -= 5
  37         if key_state[pygame.K_DOWN] or key_state[pygame.K_s]:
  38             self.rect.y += 5
  39         if self.rect.right > WIDTH:
  40             self.rect.right = WIDTH
  41         if self.rect.left < 0:
  42             self.rect.left = 0
  43         if self.rect.y < 0:
  44             self.rect.y = 0
  45         if self.rect.y > HEIGHT:
  46             self.rect.y = HEIGHT
  47 
  48     
  49         now = pygame.time.get_ticks()
  50         if self.hidden and now - self.hide_time > 1000:
  51             self.hidden = False
  52             self.rect.bottom = HEIGHT
  53             self.hp = 100
  54 
  55         if self.is_missile_firing:
  56             if now - self.start_missile_time <= MISSILE_LIFETIME:
  57                 if now - self.last_missile_time > MISSILE_INTERVAL:
  58                     missile = Missile(self.rect.center)
  59                     missiles.add(missile)
  60                     self.last_missile_time = now
  61             else:
  62                 self.is_missile_firing = False
  63 
  64 
  65 
  66     def shoot(self):
  67         bullet = Bullet(self.rect.centerx,self.rect.centery)
  68         bullets.add(bullet)
  69         shoot_sound.play()
  70 
  71     def fire_missile(self):
  72         self.is_missile_firing = True
  73         self.start_missile_time = pygame.time.get_ticks()
  74 
  75     def hide(self):
  76         self.hidden = True
  77         self.rect.y = HEIGHT
  78         self.hide_time = pygame.time.get_ticks()

• 动态地图的实现

   1 class Dynamic_Background1(pygame.sprite.Sprite):
   2 
   3     def __init__(self):
   4         pygame.sprite.Sprite.__init__(self)
   5         self.image = pygame.transform.flip(background_img1,False,False)
   6         self.rect = self.image.get_rect()
   7         self.speed = 3
   8         self.last_time = pygame.time.get_ticks()
   9 
  10     def update(self):
  11         now = pygame.time.get_ticks()
  12         if now - self.last_time > 5:
  13             self.rect.y += self.speed
  14             self.last_time = now
  15             while self.rect.y >= HEIGHT:
  16                 self.rect.y = -self.rect.height
  17                 dynamic_background2.update()
  18 
  19 
  20         for event in pygame.event.get():
  21             if event.type == pygame.QUIT:
  22                 game_over == True
  23             if event.type == pygame.KEYDOWN:
  24                 if event.type == pygame.K_ESCAPE:
  25                     game_over == True
  26 
  27 
  28 class Dynamic_Background2(pygame.sprite.Sprite):
  29 
  30     def __init__(self):
  31         pygame.sprite.Sprite.__init__(self)
  32         self.image = pygame.transform.flip(background_img2,False,False)
  33         self.rect = self.image.get_rect()
  34         self.rect.y = -self.rect.height
  35         self.speed = 3
  36         self.last_time = pygame.time.get_ticks()
  37 
  38     def update(self):
  39         now = pygame.time.get_ticks()
  40         if now - self.last_time > 5:
  41             self.rect.y += self.speed
  42             self.last_time = now
  43             while self.rect.y >= HEIGHT:
  44                 self.rect.y = -self.rect.height
  45                 dynamic_background1.update()
  46 
  47         for event in pygame.event.get():
  48             if event.type == pygame.QUIT:
  49                 game_over == True
  50             if event.type == pygame.KEYDOWN:
  51                 if event.type == pygame.K_ESCAPE:
  52                     game_over == True

• UI界面的实现

   1 def show_menu():
   2     global game_state,screen
   3     font_name = pygame.font.match_font('arial')
   4     font = pygame.font.Font(font_name,40)
   5     screen.blit(background_img3,background_rect)
   6 
   7     # rect1 = pygame.draw.rect(screen,(255,255,255),(WIDTH/20,80, 550, 100), 10)
   8     # screen.blit(font.render('SPACE SHOOTER',True,(0,255,0)), (150, 100))
   9     draw_text('SPACE SHOOTER',screen,(0,255,0),70,WIDTH/2,100)
  10     rect2 = pygame.draw.rect(screen,(0,255,0),(WIDTH/7 + 80,350, 400, 50), 10)
  11     screen.blit(font.render('Press Space key to start',True,(255,255,0)), (220, 350))
  12     rect3 = pygame.draw.rect(screen,(0,255,0),(WIDTH/7 + 80,450, 400, 50), 10)
  13     screen.blit(font.render('Press Esc key to quit',True,(255,255,0)), (220, 450))

• 爆炸，太空站等动态效果的实现

   1 explosion_animation = []
   2 for i in range(9):
   3     explosion_dir = path.join(img_dir,'regularExplosion0{}.png'.format(i))
   4     explosion_img = pygame.image.load(explosion_dir).convert()
   5     explosion_animation.append(explosion_img)
   6 
   7 spaceship_zhan_animation = []
   8 for i in range(14,16):
   9     spaceship_zhan_dir = path.join(img_dir,'spaceBuilding_0{}.png'.format(i))
  10     spaceship_zhan_img = pygame.image.load(spaceship_zhan_dir).convert()
  11     spaceship_zhan_animation.append(spaceship_zhan_img)
  12 
  13 
  14 space_plant_animation = []
  15 for i in range(6,10):
  16     space_plant_dir = path.join(img_dir,'spaceBuilding_00{}.png'.format(i))
  17     space_plant_img = pygame.image.load(space_plant_dir).convert()
  18     space_plant_animation.append(space_plant_img)
  19 
  20 powerup_imgs = {}
  21 powerup_add_hp_dir = path.join(img_dir,'gem_red.png')
  22 powerup_imgs['add_hp'] = pygame.image.load(powerup_add_hp_dir).convert()
  23 powerup_add_life_dir = path.join(img_dir,'heartFull.png')
  24 powerup_imgs['add_life'] = pygame.image.load(powerup_add_life_dir).convert()
  25 powerup_add_missile_dir = path.join(img_dir,'gem_yellow.png')
  26 powerup_imgs['add_missile'] = pygame.image.load(powerup_add_missile_dir).convert()

• 游戏精灵对象实例化

   1 dynamic_background1 = Dynamic_Background1()
   2 dynamic_background2 = Dynamic_Background2()
   3 space_plant_entity = Space_plant_entity()
   4 # spaceship_boss_one =Spaceship_Boss_One()
   5 player = Player()
   6 spaceship_zhan_shiwu = Spaceship_zhan_shiwu()
   7 enemys = pygame.sprite.Group()
   8 for i in range(7):
   9     enemy = Enemy()
  10     enemys.add(enemy)
  11 spaceships = pygame.sprite.Group()
  12 for i in range(5):
  13     spaceship = Spaceship()
  14     spaceships.add(spaceship)
  15 bullets = pygame.sprite.Group()
  16 spaceship_bullets = pygame.sprite.Group()
  17 missiles = pygame.sprite.Group()
  18 explosions = pygame.sprite.Group()
  19 powerups = pygame.sprite.Group()

• 游戏画面的动态更新

   1                 dynamic_background1.update()
   2                 dynamic_background2.update()
   3                 player.update()
   4                 enemys.update()
   5                 bullets.update()
   6                 missiles.update()
   7                 explosions.update()
   8                 powerups.update()
   9                 spaceships.update()
  10                 spaceship_bullets.update()
  11                 # spaceship_boss_one_bullets.update()
  12                 spaceship_zhan_shiwu.update()
  13                 space_plant_entity.update()

• 游戏精灵之间的碰撞检测

   1                 hits = pygame.sprite.spritecollide(player,enemys,True,pygame.sprite.collide_circle)
   2                 for hit in hits:
   3                     player.hp -= 30
   4                     if player.hp<0:
   5                         player.lives -= 1
   6                         player.hp = 100 
   7                         player.hide()
   8                         if player.lives == 0:
   9                             game_over = True
  10                 hits = pygame.sprite.spritecollide(player,spaceships,True,pygame.sprite.collide_circle)
  11                 for hit in hits:
  12                     player.hp -= 40
  13                     if player.hp<0:
  14                         player.lives -= 1
  15                         player.hp = 100
  16                         player.hide()
  17                         if player.lives == 0:
  18                             game_over = True
  19                 hits = pygame.sprite.spritecollide(player,spaceship_bullets,True,pygame.sprite.collide_circle)
  20                 for hit in hits:
  21                     player.hp -= 10  
  22                     if player.hp<0:
  23                         player.lives -= 1
  24                         player.hp = 100
  25                         player.hide()
  26                         if player.lives == 0:
  27                             game_over = True

• 游戏精灵组之间的碰撞检测

   1                 hits_bullets = pygame.sprite.groupcollide(enemys,bullets,True,True)
   2                 hits_missiles = pygame.sprite.groupcollide(enemys,missiles,True,True)
   3                 hits_spaceships = pygame.sprite.groupcollide(spaceships,bullets,True,True)
   4                 hits_spaceships_and_missiles = pygame.sprite.groupcollide(spaceships,missiles,True,False)  
   5                 hits = {}
   6                 hits.update(hits_bullets)
   7                 hits.update(hits_missiles)
   8                 hits.update(hits_spaceships)
   9                 hits.update(hits_spaceships_and_missiles)
  10                 for hit in hits:
  11                     enemy = Enemy()    
  12                     enemys.add(enemy)
  13                     explosion = Explosion(hit.rect.center)
  14                     explosions.add(explosion)
  15                     player.score += (100 - hit.radius)
  16                     if random.random() > 0.9:
  17                         powerup = Powerup(hit.rect.center)
  18                         powerups.add(powerup)
  19 
  20 
  21                 hits = pygame.sprite.spritecollide(player,powerups,True)
  22                 for hit in hits:
  23                     if hit.type == 'add_hp':
  24                         player.hp += 50
  25                         if player.hp > 100:
  26                             player.hp = 100
  27                     elif hit.type == 'add_life':
  28                         player.lives += 1
  29                         if player.lives > 3:
  30                             player.lives = 3
  31                     else:
  32                         player.fire_missile()

• 玩家生命进度UI的实现

   1 def draw_ui():
   2     pygame.draw.rect(screen,(0,255,0),(10,10,player.hp,15))
   3     pygame.draw.rect(screen,(255,255,255),(10,10,100,15),2)
   4 
   5     draw_text(str(player.score),screen,(255,255,255),20,WIDTH/2,10)
   6 
   7     img_rect = player_img_small.get_rect()
   8     img_rect.right = WIDTH - 10
   9     img_rect.top = 10
  10     for _ in range(player.lives):
  11         screen.blit(player_img_small,img_rect)
  12         img_rect.x -= img_rect.width + 10

• 游戏初始化

  1 pygame.mixer.pre_init(44100,-16,2,2048)
  2 pygame.mixer.init()
  3 pygame.init()
  4 screen = pygame.display.set_mode((WIDTH,HEIGHT))
  5 pygame.display.set_caption("My Game")
  6 clock = pygame.time.Clock()

• 游戏主程序的运行

   1 if __name__ == '__main__':
   2         while not game_over:
   3             clock.tick(60)
   4             if game_state == 0:
   5                 show_menu()
   6             else:
   7                 event_list = pygame.event.get()
   8                 for event in event_list:
   9                     if event.type == pygame.QUIT:
  10                         game_over = True
  11                     if event.type == pygame.KEYDOWN:
  12                         if event.key == pygame.K_ESCAPE:
  13                             game_over = True 
  14                         if event.key == pygame.K_SPACE:
  15                             player.shoot()
  16 
  17                 now = pygame.time.get_ticks()
  18                 if now - last_enemy_generate_time > NEW_ENEMY_GENERATE_INTERVAL:
  19                     enemy = Enemy()
  20                     enemys.add(enemy)
  21                     last_enemy_generate_time = now    
  22 
  23                 if now - last_spaceship_generate_time > NEW_SPACESHIP_GENERATE_INTERVAL:
  24                     spaceship = Spaceship()
  25                     spaceships.add(spaceship)
  26                     last_spaceship_generate_time = now

　　   注意bgm及音效的路径，我的是相对路径，路径一定要对，否则程序无法读取图片及音乐哦！

游戏画面

• UI界面

• 玩家生命条数及生命数UI画面

• 游戏画面

 最后

完整飞机大战游戏代码：

https://pan.baidu.com/s/1l6uOc9bk6kBABMnnp0lWaQ
提取码：ed7i
 

更多有趣好玩的实战项目，后续会持续分享，点个关注吧以后就不会找不到了~