問題描述

所以，不久前，我開始自學(xué) kivy.我從主要的 kivy 網(wǎng)站開始，瀏覽了它的 pong 制作教程，完成后我決定嘗試給它關(guān)鍵輸入.我似乎找不到任何關(guān)于 kivy 鍵輸入的指南！任何人都知道某種教程或可以提供一些易于理解的代碼?我確實(shí)在 kivy 的示例文件夾中查看了鍵盤偵聽器，但如果我應(yīng)該使用它，我不太確定如何使用它.

So, awhile ago, I started teaching myself kivy. I started with the main kivy website and went through its pong making tutorial and upon finishing that I decided to try and give it key input. I just can't seem to find any kind of guide to key input with kivy! Anyone know some kind of tutorial or can provide some easy to understand code? I did look at the Keyboard Listener in the examples folder of kivy, but I'm not quite sure how to use that if I'm supposed to.

感謝您的幫助.

推薦答案

我猜你在問如何用鍵盤控制槳.我假設(shè)您的計(jì)算機(jī)上運(yùn)行了最終的乒乓球代碼(如果沒有，您可以在 本節(jié)).

I guess you are asking how to control the paddles with the keyboard. I assume you have the final ping pong codes running on your computer (If not, you can find them at the end of this section).

1 - 在 main.py 中導(dǎo)入 Window 類:

1 - In the main.py import the Window class:

from kivy.core.window import Window

2 - 重新定義 PongGame 類的開頭，使其如下所示:

2 - Redefine the beginning of the PongGame class so it looks like the following:

class PongGame(Widget):
    ball = ObjectProperty(None)
    player1 = ObjectProperty(None)
    player2 = ObjectProperty(None)

    def __init__(self, **kwargs):
        super(PongGame, self).__init__(**kwargs)
        self._keyboard = Window.request_keyboard(self._keyboard_closed, self)
        self._keyboard.bind(on_key_down=self._on_keyboard_down)

    def _keyboard_closed(self):
        self._keyboard.unbind(on_key_down=self._on_keyboard_down)
        self._keyboard = None

    def _on_keyboard_down(self, keyboard, keycode, text, modifiers):
        if keycode[1] == 'w':
            self.player1.center_y += 10
        elif keycode[1] == 's':
            self.player1.center_y -= 10
        elif keycode[1] == 'up':
            self.player2.center_y += 10
        elif keycode[1] == 'down':
            self.player2.center_y -= 10
        return True

瞧！按 w 和 s 為左槳，按 up 和 down 為右槳.

Voilà! Press w and s for the left paddle and up and down for the right paddle.

這篇關(guān)于您如何使用 kivy 檢查鍵盤事件?的文章就介紹到這了，希望我們推薦的答案對(duì)大家有所幫助，也希望大家多多支持html5模板網(wǎng)！