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我将如何在 pygame 中实现滚动文本？由于 Text 类是从 Sprite 派生的，我想我可以像使用 Sprite 对象一样将它包装起来。相反，它只是从屏幕的左边缘消失，永远不会返回（我也无法让它从每一侧反弹）。

我对这个程序的目标是加强我刚刚在一些教育材料中介绍的内容。然而，滚动文本不是其中之一（虽然看起来很酷）。

谢谢，

戴夫

代码（特定块在注释“在屏幕底部添加滚动文本”下）：

# Simon Says
# Displays sequences of sounds and/or colors which the user must repeat

from livewires import games, color
import random

# initialise screen
games.init(screen_width = 640, screen_height = 480, fps = 50)

class Game(object):
    """A sequence repeat game"""
    def __init__(self):
        """Initialize Game object"""

        # create key
        self.menu_title = games.Text(value = "Key",
                          size = 25,
                          color  = color.red,
                          top = 5,
                          left = games.screen.width - 100,
                          is_collideable = False)
        self.menu_choice0 = games.Text(value = "0 - Quit",
                          size = 20,
                          color  = color.red,
                          top = self.menu_title.bottom + 5,
                          left = games.screen.width - 120,
                          is_collideable = False)
        self.menu_choice1 = games.Text(value = "1 - Yellow",
                          size = 20,
                          color  = color.red,
                          top = self.menu_choice0.bottom + 5,
                          left = games.screen.width - 120,
                          is_collideable = False)
        self.menu_choice2 = games.Text(value = "2 -Thrust sound",
                          size = 20,
                          color  = color.red,
                          top = self.menu_choice1.bottom + 5,
                          left = games.screen.width - 120,
                          is_collideable = False)
        games.screen.add(self.menu_title)
        games.screen.add(self.menu_choice0)
        games.screen.add(self.menu_choice1)
        games.screen.add(self.menu_choice2)

        # add scrolling text at bottom of screen
        self.instructions = games.Text(value = "Repeat the sequence by entering the "
                                               "corresponding number.",
                                               size = 20,
                                               color = color.green,
                                               x = games.screen.width/2,
                                               bottom = games.screen.height - 2,
                                               dx = - 0.75)

        games.screen.add(self.instructions)

        # wrap
        if self.instructions.left < 0:
            self.instructions.left = games.screen.width



    def play(self):
        """Play game"""
        # load and set background
        black_background = games.load_image("blackbackground.jpg", transparent = False)
        games.screen.background = black_background
        games.screen.mainloop()

def main():
    sequence = Game()
    sequence.play()

main()
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1 回答 1

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我没有看到任何东西可以为你处理这一切livewires。您可能可以使用livewires.Object一些自定义代码。像那时一样构建你的表面livewires.game.Text，移动它。或者甚至让它可勾选并跟踪应该显示文本的哪一部分以及blit仅显示对象表面的那部分。

于 2015-11-19T20:34:00.610 回答