我们在前面几篇已经把基础的游戏操控和击毁等特效已经完成了，现在大体可以玩儿了，但是还有几部分问题：
- 虽然可以操控了，但是没有分数的体现
- 虽然定义了三条命，但是血扣完了还能玩
所以加下来就要把以上的问题解决，首先先把分数给他加上去：
# 下面这部分代码是在while True之前完成的哦
score = 0 # 定义一个变量存放分数
score_font = pygame.font.Font("font/font.ttf", 30) # 创建一个font对象，显示结果
WhiteFont = (255, 255, 255) # 定义字体的颜色
# 下面这部分代码要再while True里面，不断循环更新
score_surface = score_font.render("Score : %s" % str(score), True, WhiteFont) # 将需要显示的文字转换成surface对象
screen.blit(score_surface, (10, 5)) # 将结果绘制出来
# 接下来就是在每种敌机击毁的代码里面加上score的修改，下面以小型敌机为例
for each in small_enemies:
if each.active == True:
each.move()
screen.blit(each.image, each.rect)
else:
if not (heroPlane.delay % 3):
screen.blit(each.destroy_images[small_destroy_index], each.rect)
small_destroy_index = (small_destroy_index + 1) % 4
if small_destroy_index == 0:
each.play_sound()
score += 100 # 添加分数的修改
each.reset()
接下来我们就要绘制游戏结束界面了，不能让游戏无休止的进行下去：
# 同样的，我们需要在while True之前把字体和图片先加载进来
gameover_font = pygame.font.Font("font/font.ttf", 48) # 显示最后的结果
again_image = pygame.image.load("images/again.png").convert_alpha() # 加载重新开始
gameover_image = pygame.image.load("images/gameover.png").convert_alpha() # 加载结束游戏
# 我们之前定义的血量，只是用来控制血量的显示个数了，我们也可以用它来做判断，没有血了就是0，即为假
if life_NUM > 0:
for each in big_enemies:
if each.active == True:
each.move()
screen.blit(each.image, each.rect)
else:
if not (heroPlane.delay % 3):
screen.blit(each.destroy_images[big_destroy_index], each.rect)
big_destroy_index = (big_destroy_index + 1) % 6
if big_destroy_index == 0:
each.play_sound()
score += 300
each.reset()
……
score_surface = score_font.render("Score : %s" % str(score), True, WhiteFont)
screen.blit(score_surface, (10, 5))
else: # 这里是重头戏
pygame.mixer.music.stop() # 先把背景音乐关了
# 分别显示分数、重新开始和结束游戏
gameover_score = gameover_font.render("Score : %s" % str(score), True, WhiteFont)
screen.blit(gameover_score,(100,200))
screen.blit(again_image, (90,350))
screen.blit(gameover_image, (90,450))
mouse_down = pygame.mouse.get_pressed() # 检测按键是否按下
if mouse_down[0]: # 如果按键的左键按下了
pos = pygame.mouse.get_pos() # 获取鼠标的座标
if 90 < pos[0] < 390 and 350 < pos[1] < 390: # 如果是在重新开始的范围
main() # 重新调用main开始游戏
elif 90 < pos[0] < 390 and 450 < pos[1] < 490: # 如果在结束游戏的范围
pygame.quit() # 退出pygame
sys.exit() # 关闭进程
以上就是我们所有要完成的部分了，对于敌机的子弹可以思考一下自行添加，下面附上全部代码：
import pygame
import sys
from pygame.locals import *
import myclass
pygame.init()
screen_size = width, height = 480, 700
screen = pygame.display.set_mode(screen_size)
pygame.display.set_caption('飞机大战')
bg = pygame.image.load('./images/background.png').convert()
pygame.mixer.music.load('./sound/game_music.ogg')
pygame.mixer.music.set_volume(0.2)
pygame.mixer.music.play(-1)
def add_big_enemies(group1, group2, num):
for big_enemy_num in range(num):
each_big_enemy = myclass.BigEnemy(screen_size)
group1.add(each_big_enemy)
group2.add(each_big_enemy)
def add_mid_enemies(group1, group2, num):
for mid_enemy_num in range(num):
each_mid_enemy = myclass.MidEnemy(screen_size)
group1.add(each_mid_enemy)
group2.add(each_mid_enemy)
def add_small_enemies(group1, group2, num):
for small_enemy_num in range(num):
each_small_enemy = myclass.SmallEnemy(screen_size)
group1.add(each_small_enemy)
group2.add(each_small_enemy)
def main():
clock = pygame.time.Clock()
heroPlane = myclass.myPlane(screen, screen_size)
enemies = pygame.sprite.Group()
big_enemies = pygame.sprite.Group()
add_big_enemies(big_enemies, enemies, 2)
mid_enemies = pygame.sprite.Group()
add_mid_enemies(mid_enemies, enemies, 4)
small_enemies = pygame.sprite.Group()
add_small_enemies(small_enemies, enemies, 15)
bullet1 = []
bullet1_index = 0
BULLET1_NUM = 5
for i in range(BULLET1_NUM):
bullet1.append(myclass.Bullet(heroPlane.rect.midtop, True))
small_destroy_index = 0
mid_destroy_index = 0
big_destroy_index = 0
hero_destroy_index = 0
life_image = pygame.image.load("images/life.png").convert_alpha()
life_rect = life_image.get_rect()
life_NUM = 3
score = 0
score_font = pygame.font.Font("font/font.ttf", 30)
WhiteFont = (255, 255, 255)
gameover_font = pygame.font.Font("font/font.ttf", 48)
again_image = pygame.image.load("images/again.png").convert_alpha()
gameover_image = pygame.image.load("images/gameover.png").convert_alpha()
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
key_pressed = pygame.key.get_pressed()
if key_pressed[K_UP]:
heroPlane.moveUp()
if key_pressed[K_DOWN]:
heroPlane.moveDown()
if key_pressed[K_LEFT]:
heroPlane.moveLeft()
if key_pressed[K_RIGHT]:
heroPlane.moveRight()
screen.blit(bg, (0, 0))
heroPlane.time_delay()
if life_NUM > 0:
for each in big_enemies:
if each.active == True:
each.move()
screen.blit(each.image, each.rect)
else:
if not (heroPlane.delay % 3):
screen.blit(each.destroy_images[big_destroy_index], each.rect)
big_destroy_index = (big_destroy_index + 1) % 6
if big_destroy_index == 0:
each.play_sound()
score += 300
each.reset()
for each in mid_enemies:
if each.active == True:
each.move()
screen.blit(each.image, each.rect)
else:
if not (heroPlane.delay % 3):
screen.blit(each.destroy_images[mid_destroy_index], each.rect)
mid_destroy_index = (mid_destroy_index + 1) % 4
if mid_destroy_index == 0:
each.play_sound()
score += 200
each.reset()
for each in small_enemies:
if each.active == True:
each.move()
screen.blit(each.image, each.rect)
else:
if not (heroPlane.delay % 3):
screen.blit(each.destroy_images[small_destroy_index], each.rect)
small_destroy_index = (small_destroy_index + 1) % 4
if small_destroy_index == 0:
each.play_sound()
score += 100
each.reset()
if heroPlane.active == True:
heroPlane.animation()
else:
if not (heroPlane.delay % 3):
screen.blit(heroPlane.destroy_images[hero_destroy_index], heroPlane.rect)
hero_destroy_index = (hero_destroy_index + 1) % 4
if hero_destroy_index == 0:
life_NUM -= 1
heroPlane.play_sound()
heroPlane.reset()
if life_NUM > 0:
for i in range(life_NUM):
screen.blit(life_image, (width - 10 - (i + 1) * life_rect.width, height - 10 - life_rect.height))
if not (heroPlane.delay % 10):
bullet1[bullet1_index].reset(heroPlane.rect.midtop)
bullet1_index = (bullet1_index + 1) % BULLET1_NUM
for each in bullet1:
if each.active == True:
each.move()
screen.blit(each.image, each.rect)
enemies_hit = pygame.sprite.spritecollide(each, enemies, False,pygame.sprite.collide_mask)
if enemies_hit:
each.active = False
for e in enemies_hit:
if e in mid_enemies or e in big_enemies:
e.energy -= 1
if e.energy == 0:
e.active = False
else:
e.active = False
else:
each.reset(heroPlane.rect.midtop)
enemies_collided = pygame.sprite.spritecollide(heroPlane, enemies, False, pygame.sprite.collide_mask)
if enemies_collided:
heroPlane.active = False
for each in enemies_collided:
each.active = False
score_surface = score_font.render("Score : %s" % str(score), True, WhiteFont)
screen.blit(score_surface, (10, 5))
else:
pygame.mixer.music.stop()
gameover_score = gameover_font.render("Score : %s" % str(score), True, WhiteFont)
screen.blit(gameover_score,(100,200))
screen.blit(again_image, (90,350))
screen.blit(gameover_image, (90,450))
mouse_down = pygame.mouse.get_pressed()
if mouse_down[0]:
pos = pygame.mouse.get_pos()
if 90 < pos[0] < 390 and 350 < pos[1] < 390:
main()
elif 90 < pos[0] < 390 and 450 < pos[1] < 490:
pygame.quit()
sys.exit()
pygame.display.flip()
clock.tick(60)
if __name__ == '__main__':
main()
