Python 单人“乒乓”游戏
我刚开始学习pygame和livewires,我正在尝试制作一个单人乒乓球游戏,你只需击球,它就会反弹,直到它经过屏幕左侧的挡板,并由鼠标控制,这会让你输。我有基本的代码,但球不会停留在屏幕上,它只是闪烁,不会保持不变。此外,拨杆不随鼠标移动。我肯定我错过了一些简单的东西,但我就是想不出来。救命啊!以下是我所拥有的:Python 单人“乒乓”游戏,python,pygame,livewires,Python,Pygame,Livewires,我刚开始学习pygame和livewires,我正在尝试制作一个单人乒乓球游戏,你只需击球,它就会反弹,直到它经过屏幕左侧的挡板,并由鼠标控制,这会让你输。我有基本的代码,但球不会停留在屏幕上,它只是闪烁,不会保持不变。此外,拨杆不随鼠标移动。我肯定我错过了一些简单的东西,但我就是想不出来。救命啊!以下是我所拥有的: from livewires import games import random games.init(screen_width=640, screen_height=480,
from livewires import games
import random
games.init(screen_width=640, screen_height=480, fps=50)
class Paddle(games.Sprite):
image=games.load_image("paddle.bmp")
def __init__(self, x=10):
super(Paddle, self).__init__(image=Paddle.image,
y=games.mouse.y,
left=10)
self.score=games.Text(value=0, size=25, top=5, right=games.screen.width - 10)
games.screen.add(self.score)
def update(self):
self.y=games.mouse.y
if self.top<0:
self.top=0
if self.bottom>games.screen.height:
self.bottom=games.screen.height
self.check_collide()
def check_collide(self):
for ball in self.overlapping_sprites:
self.score.value+=1
ball.handle_collide()
class Ball(games.Sprite):
image=games.load_image("ball.bmp")
speed=5
def __init__(self, x=90, y=90):
super(Ball, self).__init__(image=Ball.image,
x=x, y=y,
dx=Ball.speed, dy=Ball.speed)
def update(self):
if self.right>games.screen.width:
self.dx=-self.dx
if self.bottom>games.screen.height or self.top<0:
self.dy=-self.dy
if self.left<0:
self.end_game()
self.destroy()
def handle_collide(self):
self.dx=-self.dx
def end_game(self):
end_message=games.Message(value="Game Over",
size=90,
x=games.screen.width/2,
y=games.screen.height/2,
lifetime=250,
after_death=games.screen.quit)
games.screen.add(end_message)
def main():
background_image=games.load_image("background.bmp", transparent=False)
games.screen.background=background_image
paddle_image=games.load_image("paddle.bmp")
the_paddle=games.Sprite(image=paddle_image,
x=10,
y=games.mouse.y)
games.screen.add(the_paddle)
ball_image=games.load_image("ball.bmp")
the_ball=games.Sprite(image=ball_image,
x=630,
y=200,
dx=2,
dy=2)
games.screen.add(the_ball)
games.mouse.is_visible=False
games.screen.event_grab=True
games.screen.mainloop()
main()
我帮不了你,因为你没有在这里发布完整的代码。至少,我看不到您在哪里更新精灵self.x+=self.dx的位置?以及更新绘图到屏幕。你也没有在主函数中使用你的类 也就是说,我明白了
def __init__(self, x=10):
在构造函数中,您从未使用过x变量。这也让我担心
考虑将“桨和球”类用作精灵,如下所示:
if __name__ == '__main__':
background_image = games.load_image("background.bmp", transparent=False)
games.screen.background = background_image
the_paddle = Puddle()
games.screen.add(the_paddle)
the_ball = Ball()
games.screen.add(the_ball)
games.mouse.is_visible = False
games.screen.event_grab = True
games.screen.mainloop()
注意,我已经冒昧地让你的代码读得更像Python。但是,我从未使用过livewires,因此我的代码可能无法正常工作。但它应该为你指明正确的方向。祝你好运 为什么要使用livewires?您只能将pygame用于乒乓球游戏
import pygame
pygame.init()
screen = pygame.display.set_mode((640, 480)) # window size
pygame.display.set_caption("Simple pong") # window title
# this is a rect that contains the ball
# at the beginning it is set in the center of the screen
ball_rect = pygame.Rect((312, 232), (16, 16))
# speed of the ball (x, y)
ball_speed = [4, 4]
# this contains your paddle
# vertically centered on the left side
paddle_rect = pygame.Rect((8, 200), (8, 80))
# 1 point if you hit the ball
# -5 point if you miss the ball
score = 0
# load the font for displaying the score
font = pygame.font.Font(None, 30)
# mainloop
while True:
# event handler
for event in pygame.event.get():
# quit event => close the game
if event.type == pygame.QUIT:
exit(0)
# control the paddle with the mouse
elif event.type == pygame.MOUSEMOTION:
paddle_rect.centery = event.pos[1]
# correct paddle position if it's going out of window
if paddle_rect.top < 0:
paddle_rect.top = 0
elif paddle_rect.bottom >= 480:
paddle_rect.bottom = 480
# this test if up or down keys are pressed
# if yes move the paddle
if pygame.key.get_pressed()[pygame.K_UP] and paddle_rect.top > 0:
paddle_rect.top -= 5
elif pygame.key.get_pressed()[pygame.K_DOWN] and paddle_rect.bottom < 480:
paddle_rect.top += 5
# update ball position
# this move the ball
ball_rect.left += ball_speed[0]
ball_rect.top += ball_speed[1]
# these two if block control if the ball is going out on the screen
# if it's going it reverse speed to simulate a bounce
if ball_rect.top <= 0 or ball_rect.bottom >= 480:
ball_speed[1] = -ball_speed[1]
if ball_rect.right >= 640:
ball_speed[0] = -ball_speed[0]
# this control if the ball touched the left side
elif ball_rect.left <= 0:
score -= 5
# reset the ball to the center
ball_rect = pygame.Rect((312, 232), (16, 16))
# test if the ball is hit by the paddle
# if yes reverse speed and add a point
if paddle_rect.colliderect(ball_rect):
ball_speed[0] = -ball_speed[0]
score += 1
# clear screen
screen.fill((255, 255, 255))
# draw the ball, the paddle and the score
pygame.draw.rect(screen, (0, 0, 0), paddle_rect) # paddle
pygame.draw.circle(screen, (0, 0, 0), ball_rect.center, ball_rect.width/2) # ball
score_text = font.render(str(score), True, (0, 0, 0))
screen.blit(score_text, (320-font.size(str(score))[0]/2, 5)) # score
# update screen and wait 20 milliseconds
pygame.display.flip()
pygame.time.delay(20)
我在任何地方都看不到screen.flip,但可能在screen.mainloop中?如果使用双缓冲,一些库会为您翻转缓冲区。不太多,我不知道livewires是否是其中之一,但这里的问题不是不调用flip。杰姆提到他的球在闪烁。