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标题: 菜鸟一个，重写了遍pygame课程，纪念一下 [打印本页]

作者: Lizero 时间: 2018-11-19 18:47
标题: 菜鸟一个，重写了遍pygame课程，纪念一下
学Python两个多星期，看很多贴说要多独立打些代码，所以上星期看完pygame课程，这星期试着自己重写了一遍，部分代码跟先生不一样，纯粹纪念一下，欢迎高手指点指点。
整个做完感觉敌机一击就死没啥意思，所以敌机类里多了个血量的变量，而且速度越快的血量越少。
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import pygame
from sys import exit
import random
#飞机类
class Plane:
def __init__(self):
      self.image = pygame.image.load('plane.png').convert_alpha()
      self.x = 0
      self.y = -1

def move(self):
      x, y = pygame.mouse.get_pos()
      self.x = x - self.image.get_width()/2
      self.y = y - self.image.get_height()/2
#子弹类
class Bullet:
def __init__(self):
      self.image = pygame.image.load('bullet.png').convert_alpha()
      self.x = 0
      self.y = -1
      self.state = False

def move(self):
      if self.state:
         if self.y > -10:
            self.y -= 1
         else:
            self.state = False
      else:
         self.y = -10

def restart(self):
      self.state = True
      self.x, self.y = pygame.mouse.get_pos()
      self.y -= plane.image.get_height()/2-5
#敌机类
class Enemy:
def __init__(self):
      self.image = pygame.image.load('enemy.png').convert_alpha()
      self.x = random.uniform(0,450 - self.image.get_width())
      self.y = -self.image.get_height()
      self.speed = random.random()
      # 此处增加了个功能，敌机状态用血量衡量
      # self.state = False
      self.blood = 0

def move(self):
      if self.blood > 0:
         if self.y < 850:
            self.y += self.speed
         else:
            self.blood = 0
      else:
         self.y = -100

def restart(self):
      # self.state = True
      self.x = random.uniform(0, 450 - self.image.get_width())
      self.y = -self.image.get_height()
      self.speed = random.random()
      # 速度越快的血量越少
      self.blood = 5 - int(self.speed * 10/2)

def hit(e, b):
if e.x < b.x < e.x + e.image.get_width() and e.y < b.y < e.y + e.image.get_height():
      e.blood -= 1
      b.state = False
      if e.blood == 0:
         return 1
return 0

def crash(e, p):
if (e.x - 0.7*p.image.get_width() < p.x
         < e.x + e.image.get_width() - 0.3*p.image.get_width()
      and e.y - 0.7*p.image.get_height() < p.y
         < e.y + e.image.get_height() - 0.3*p.image.get_height()):
      return True
return False

pygame.init()
screen = pygame.display.set_mode((450,800),0,32)
pygame.display.set_caption('Plane game')
background = pygame.image.load('background.jpg').convert()

plane = Plane()

bullets = []
for i in range(10):
bullets.append(Bullet())
b_interval = 0
b_num = 0

enemies = []
num = 10
for i in range(num):
enemies.append(Enemy())
e_interval = 0
e_num = 0

scores = 0
font = pygame.font.Font(None,32)

gameover = False
while True:
for event in pygame.event.get():
      if event.type == pygame.QUIT:
         pygame.quit()
         exit()
      if gameover and event.type == pygame.MOUSEBUTTONDOWN:
         gameover = False
         scores = 0
         for e in enemies:
            e.blood = 0
         for b in bullets:
            b.state = False

screen.blit(background,(0,0))

if not gameover:
      if b_interval == 0:
         bullets[b_num].restart()
         b_num = (b_num + 1) % 10
      b_interval = (b_interval + 1) % 100
      for b in bullets:
         b.move()
         screen.blit(b.image,(b.x,b.y))
      #此处逻辑跟先生不同，先生保证屏幕有固定的敌机数，
      #我这里还是用子弹的逻辑，敌机出现的间隔保持一致
      if e_interval == 0:
         if enemies[e_num].blood == 0:
            enemies[e_num].restart()
         e_num = (e_num + 1) % num
      e_interval = (e_interval + 1) % 100
      for e in enemies:
         if e.blood > 0:
            for b in bullets:
                  if b.state:
                     scores += hit(e, b)

            if crash(e, plane):
                  gameover = True

            e.move()
            screen.blit(e.image,(e.x,e.y))

      text = font.render('Scores:%d' % scores, True, (0, 0, 0))
      screen.blit(text, (0, 0))

      plane.move()
      screen.blit(plane.image,(plane.x,plane.y))
else:
      text = font.render('Scores:%d' % scores, True, (0, 0, 0))
      screen.blit(text, (180, 300))

pygame.display.update()

作者: crossin先生 时间: 2018-11-20 22:59
可以的

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