import pygame class Ship: def __init__(self,ai_game): self.screen=ai_game.screen self.settings=ai_game.settings self.screen_rect=ai_game.screen.get_rect() self.image=pygame.image.load('images/ship.bmp') self.rect=self.image.get_rect() self.rect.x = self.rect.width self.rect.y = self.rect.height self.rect.midbottom=self.screen_rect.midbottom self.y=float(self.rect.y) self.x=float(self.rect.x) self.moving_right=False self.moving_left=False self.moving_up=False self.moving_down=False def update(self): if self.moving_right and self.rect.right<self.screen_rect.right: self.x+=self.settings.ship_speed if self.moving_left and self.rect.left>0: self.x-=self.settings.ship_speed if self.moving_up and self.rect.top<self.screen_rect.top: self.y+=self.settings.ship_speed if self.moving_down and self.rect.bottom>0: self.y-=self.settings.ship_speed self.rect.x=self.x self.rect.y=self.y def blitme(self): self.screen.blit(self.image,self.rect)
时间: 2024-04-26 14:24:14 浏览: 311
这段代码是用 Python 编写的,它定义了一个名为 Ship 的类。这个类包含了一个 __init__ 方法和三个其他的方法:update、blitme。这个类的作用是创建一个飞船对象,并且可以控制这个飞船在屏幕上移动。其中,update 方法实现了飞船的移动,而 blitme 方法则将飞船绘制到屏幕上。这个类依赖于 pygame 库,用于游戏开发。
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import pygame from pygame.mixer import music import random class Ball(pygame.sprite.Sprite): def __init__(self,image_file,location,speed): pygame.sprite.Sprite.__init__(self) self.image = pygame.image.load(image_file) self.rect = self.image.get_rect() self.rect.left,self.rect.top = location self.speed = speed def move(self): self.rect = self.rect.move(self.speed) if self.rect.left < 0 or self.rect.right > width: self.speed[0] = -self.speed[0] if self.rect.top < 0 and (self.rect.left < 240 or self.rect.right > 400) : self.speed[1] = -self.speed[1] pygame.init() pygame.mixer.init() # 初始化混音器 clock = pygame.time.Clock() pygame.key.set_repeat(500,50) size = width,height = 640,480 screen = pygame.display.set_mode(size) screen.fill([255,255,255]) ball = Ball("desk_ball.png",[320,240],[10,8]) def new_func(Ball): bat = Ball("bat.png",[320,460],[0,0]) return bat bat = new_func(Ball) goal = Ball("goal.png",[240,0],[0,0]) screen.blit(ball.image,ball.rect) pygame.display.set_caption('乒乓球小游戏') #游戏标题 pygame.display.update() score = 0 lives = 5#总共有5个球 music.load("bg.mp3") # 加载背景音乐 music.play(-1) # 循环播放背景音乐,直到程序退出 done = False running = True while running: for event in pygame.event.get(): if event.type == pygame.QUIT: running = False if event.type == pygame.MOUSEMOTION: bat.rect.centerx = event.pos[0] if event.type == pygame.KEYDOWN: if event.key == pygame.K_y and lives == 0: lives = 5 done = False elif event.key == pygame.K_n and lives == 0: running = False if not done: ball.move() if pygame.sprite.collide_rect(ball,bat): ball.speed[1] = -10 if pygame.sprite.collide_rect(ball,goal): score += 1 ball.speed[1] = 10 screen.blit(ball.image,ball.rect) screen.blit(bat.image,bat.rect) for num in range(lives-1): screen.blit(ball.image,[600-num*40,0]) if ball.rect.bottom > height: lives -= 1 ball.rect.left,ball.rect.top = 320,240 if lives == 0: done = True else: over_font = pygame.font.Font(None,50) over_surf = over_font.render("Game over",1,[255,0,0]) screen.blit(over_surf,[240,240]) yn_font = pygame.font.Font(None,40) yn_surf = yn_font.render("Y:continue N:quit",1,[255,0,0]) screen.blit(yn_surf,[210,280]) score_font = pygame.font.Font(None,40) score_surf = score_font.render("score:"+str(score),1,[255,0,0]) screen.blit(score_surf,[0,0]) screen.blit(goal.image,goal.rect) pygame.display.update() clock.tick(20) screen.fill([255,255,255]) pygame.quit()基于这些代码补充在游戏界面加一条分割线
在代码中添加以下代码可以在游戏界面上添加一条分割线:
```python
# 画一条分割线
pygame.draw.line(screen, [0, 0, 0], [0, 240], [640, 240], 5)
```
将其添加在`screen.fill([255,255,255])`之后,完整代码如下:
```python
import pygame
from pygame.mixer import music
import random
class Ball(pygame.sprite.Sprite):
def __init__(self,image_file,location,speed):
pygame.sprite.Sprite.__init__(self)
self.image = pygame.image.load(image_file)
self.rect = self.image.get_rect()
self.rect.left,self.rect.top = location
self.speed = speed
def move(self):
self.rect = self.rect.move(self.speed)
if self.rect.left < 0 or self.rect.right > width:
self.speed[0] = -self.speed[0]
if self.rect.top < 0 and (self.rect.left < 240 or self.rect.right > 400) :
self.speed[1] = -self.speed[1]
pygame.init()
pygame.mixer.init() # 初始化混音器
clock = pygame.time.Clock()
pygame.key.set_repeat(500,50)
size = width,height = 640,480
screen = pygame.display.set_mode(size)
screen.fill([255,255,255])
ball = Ball("desk_ball.png",[320,240],[10,8])
def new_func(Ball):
bat = Ball("bat.png",[320,460],[0,0])
return bat
bat = new_func(Ball)
goal = Ball("goal.png",[240,0],[0,0])
screen.blit(ball.image,ball.rect)
pygame.display.set_caption('乒乓球小游戏') #游戏标题
pygame.display.update()
score = 0
lives = 5#总共有5个球
music.load("bg.mp3") # 加载背景音乐
music.play(-1) # 循环播放背景音乐,直到程序退出
done = False
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
if event.type == pygame.MOUSEMOTION:
bat.rect.centerx = event.pos[0]
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_y and lives == 0:
lives = 5
done = False
elif event.key == pygame.K_n and lives == 0:
running = False
if not done:
ball.move()
if pygame.sprite.collide_rect(ball,bat):
ball.speed[1] = -10
if pygame.sprite.collide_rect(ball,goal):
score += 1
ball.speed[1] = 10
screen.blit(ball.image,ball.rect)
screen.blit(bat.image,bat.rect)
for num in range(lives-1):
screen.blit(ball.image,[600-num*40,0])
if ball.rect.bottom > height:
lives -= 1
ball.rect.left,ball.rect.top = 320,240
if lives == 0:
done = True
else:
over_font = pygame.font.Font(None,50)
over_surf = over_font.render("Game over",1,[255,0,0])
screen.blit(over_surf,[240,240])
yn_font = pygame.font.Font(None,40)
yn_surf = yn_font.render("Y:continue N:quit",1,[255,0,0])
screen.blit(yn_surf,[210,280])
score_font = pygame.font.Font(None,40)
score_surf = score_font.render("score:"+str(score),1,[255,0,0])
screen.blit(score_surf,[0,0])
# 画一条分割线
pygame.draw.line(screen, [0, 0, 0], [0, 240], [640, 240], 5)
screen.blit(goal.image,goal.rect)
pygame.display.update()
clock.tick(20)
screen.fill([255,255,255])
pygame.quit()
```
class YSortCameraGroup(pygame.sprite.Group): def __init__(self): super().__init__() self.display_surface = pygame.display.get_surface() self.half_width = self.display_surface.get_size()[0] // 2 self.half_height = self.display_surface.get_size()[1] // 2 self.offset = pygame.math.Vector2() self.floor_surf = pygame.image.load('../graphics/tilemap/ground.png').convert() self.floor_rect = self.floor_surf.get_rect(topleft = (0,0))
这段代码定义了一个自定义的精灵组类 `YSortCameraGroup`,用于实现按照 Y 坐标排序的相机组。下面是对代码的详细解释:
```python
class YSortCameraGroup(pygame.sprite.Group):
def __init__(self):
super().__init__()
# 获取当前显示窗口
self.display_surface = pygame.display.get_surface()
# 计算窗口宽度和高度的一半
self.half_width = self.display_surface.get_size()[0] // 2
self.half_height = self.display_surface.get_size()[1] // 2
# 初始化偏移量
self.offset = pygame.math.Vector2()
# 加载地面贴图
self.floor_surf = pygame.image.load('../graphics/tilemap/ground.png').convert()
self.floor_rect = self.floor_surf.get_rect(topleft=(0, 0))
```
该类继承自 `pygame.sprite.Group` 类,因此可以进行精灵的分组管理。在类的初始化方法中,首先调用父类的 `__init__()` 方法进行初始化。然后,获取当前显示窗口并计算窗口宽度和高度的一半,以便后续计算精灵在屏幕上的位置。接着,初始化偏移量为一个 `pygame.math.Vector2()` 对象,用于控制相机的移动。最后,加载地面贴图并获取其矩形对象。
该类的作用是实现按照精灵在 Y 轴上的位置进行排序,并将其绘制到屏幕上。由于精灵在屏幕上的位置是相对于相机位置而言的,因此需要使用偏移量对其进行计算。
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