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.
Thanks for any assistance.
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 - In the main.py
import the Window class:
from kivy.core.window import Window
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
Voilà! Press w
and s
for the left paddle and up
and down
for the right paddle.