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#myplane.py
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import pygame
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class Myplane(pygame.sprite.Sprite):
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def __init__(self, bg_size):
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pygame.sprite.Sprite.__init__(self)
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self.image1 = pygame.image.load("images/me1.png").convert_alpha()
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self.image2 = pygame.image.load("images/me2.png").convert_alpha()
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#添加坠机图片
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self.destroy_images = []
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self.destroy_images.extend([\
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pygame.image.load("images/me_destroy_1.png").convert_alpha(), \
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pygame.image.load("images/me_destroy_2.png").convert_alpha(), \
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pygame.image.load("images/me_destroy_3.png").convert_alpha(), \
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pygame.image.load("images/me_destroy_4.png").convert_alpha() \
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])
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self.rect = self.image1.get_rect()
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self.width, self.height = bg_size[0], bg_size[1]
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self.rect.left, self.rect.top = \
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(self.width - self.rect.width) // 2, \
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self.height - self.rect.height - 60 #减60，留给状态栏
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self.speed = 10
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self.active = True
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self.mask = pygame.mask.from_surface(self.image1) #将非透明部分标记为mask
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def moveUp(self):
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if self.rect.top > 0:
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self.rect.top -= self.speed
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else:
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self.rect.top = 0
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def moveDown(self):
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if self.rect.bottom < self.height - 60:
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self.rect.top += self.speed
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else:
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self.rect.bottom = self.height - 60
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def moveLeft(self):
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if self.rect.left > 0:
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self.rect.left -= self.speed
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else:
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self.rect.left = 0
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def moveRight(self):
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if self.rect.right < self.width:
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self.rect.left += self.speed
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else:
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self.rect.right = self.width
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#enemy.py
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import pygame
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from random import *
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class SmallEnemy(pygame.sprite.Sprite):
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def __init__(self, bg_size):
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pygame.sprite.Sprite.__init__(self)
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self.image = pygame.image.load("images/enemy1.png").convert_alpha()
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#添加坠机图片
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self.destroy_images = []
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self.destroy_images.extend([\
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pygame.image.load("images/enemy1_down1.png").convert_alpha(), \
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pygame.image.load("images/enemy1_down2.png").convert_alpha(), \
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pygame.image.load("images/enemy1_down3.png").convert_alpha(), \
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pygame.image.load("images/enemy1_down4.png").convert_alpha() \
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])
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self.rect = self.image.get_rect()
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self.width, self.height = bg_size[0], bg_size[1]
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self.speed = 2
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self.active = True
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self.rect.left, self.rect.top = \
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randint(0, self.width - self.rect.width), \
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randint(-5 * self.height, 0) #在页面外部上方5个屏幕高度范围内随机生成一个敌机
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self.mask = pygame.mask.from_surface(self.image) #将非透明部分标记为mask
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def move(self):
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if self.rect.top < self.height:
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self.rect.top += self.speed
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else:
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self.reset()
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def reset(self):
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self.active = True
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self.rect.left, self.rect.top = \
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randint(0, self.width - self.rect.width), \
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randint(-5 * self.height, 0)
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class MidEnemy(pygame.sprite.Sprite):
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energy = 8
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def __init__(self, bg_size):
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pygame.sprite.Sprite.__init__(self)
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self.image = pygame.image.load("images/enemy2.png").convert_alpha()
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self.image_hit = pygame.image.load("images/enemy2_hit.png").convert_alpha()#中弹图片
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#添加坠机图片
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self.destroy_images = []
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self.destroy_images.extend([\
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pygame.image.load("images/enemy2_down1.png").convert_alpha(), \
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pygame.image.load("images/enemy2_down2.png").convert_alpha(), \
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pygame.image.load("images/enemy2_down3.png").convert_alpha(), \
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pygame.image.load("images/enemy2_down4.png").convert_alpha() \
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])
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self.rect = self.image.get_rect()
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self.width, self.height = bg_size[0], bg_size[1]
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self.speed = 1
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self.active = True
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self.rect.left, self.rect.top = \
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randint(0, self.width - self.rect.width), \
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randint(-10 * self.height, -self.height) #在页面外部上方1个到10个屏幕高度范围内随机生成一个敌机（1-10个，就保证了不会一开始出大一个大的）
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self.mask = pygame.mask.from_surface(self.image) #将非透明部分标记为mask
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self.energy = MidEnemy.energy
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self.hit = False #检测是否被击中的属性
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def move(self):
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if self.rect.top < self.height:
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self.rect.top += self.speed
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else:
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self.reset()
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def reset(self):
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self.active = True
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self.energy = MidEnemy.energy
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self.rect.left, self.rect.top = \
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randint(0, self.width - self.rect.width), \
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randint(-10 * self.height, -self.height)
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class BigEnemy(pygame.sprite.Sprite):
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energy = 20
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def __init__(self, bg_size):
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pygame.sprite.Sprite.__init__(self)
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#大型敌机有飞行特效，两张图片切换
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self.image1 = pygame.image.load("images/enemy3_n1.png").convert_alpha()
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self.image2 = pygame.image.load("images/enemy3_n2.png").convert_alpha()
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self.image_hit = pygame.image.load("images/enemy3_hit.png").convert_alpha()#中弹图片
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#添加坠机图片
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self.destroy_images = []
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self.destroy_images.extend([\
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pygame.image.load("images/enemy3_down1.png").convert_alpha(), \
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pygame.image.load("images/enemy3_down2.png").convert_alpha(), \
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pygame.image.load("images/enemy3_down3.png").convert_alpha(), \
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pygame.image.load("images/enemy3_down4.png").convert_alpha(), \
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pygame.image.load("images/enemy3_down5.png").convert_alpha(), \
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pygame.image.load("images/enemy3_down6.png").convert_alpha() \
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])
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self.rect = self.image1.get_rect()
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self.width, self.height = bg_size[0], bg_size[1]
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self.speed = 1
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self.active = True
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self.rect.left, self.rect.top = \
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randint(0, self.width - self.rect.width), \
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randint(-15 * self.height, -5 * self.height) #在页面外部上方5-15个屏幕高度范围内随机生成一个敌机
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self.mask = pygame.mask.from_surface(self.image1) #将非透明部分标记为mask
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self.energy = BigEnemy.energy
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self.hit = False #检测是否被击中的属性
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def move(self):
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if self.rect.top < self.height:
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self.rect.top += self.speed
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else:
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self.reset()
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def reset(self):
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self.active = True
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self.energy = BigEnemy.energy
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self.rect.left, self.rect.top = \
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randint(0, self.width - self.rect.width), \
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randint(-15 * self.height, -5 * self.height)
（未完待續）
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