Enable keyboard support with explict config option input keyboard

The keyboard listening code is taken from Kivy example [1].

[1]: http://kivy.org/docs/api-kivy.core.window.html

FlappyBird.py

@@ -9,6 +9,8 @@
 from kivy.vector import Vector
 from kivy.app import App
 from kivy.clock import Clock
+from kivy.config import Config
+from kivy.core.window import Window
 from kivy.uix.widget import Widget
 
 class Background(Widget):
@@ -51,6 +53,14 @@ class Mcnay(Widget):
 
     def __init__(self, **kwargs):
         super(Mcnay, self).__init__(**kwargs)
+        if Config.getdefault('input', 'keyboard', False):
+            self._keyboard = Window.request_keyboard(
+                self._keyboard_closed, self, 'text')
+            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 switch_to_normal(self, dt):
         self.bird_image.source = "images/flappyup.png"
@@ -68,6 +78,9 @@ def on_touch_down(self, touch):
         Clock.unschedule(self.stop_jumping)
         Clock.schedule_once(self.switch_to_normal, self.jump_time  / 5.0)
 
+    def _on_keyboard_down(self, keyboard, keycode, text, modifiers):
+        self.on_touch_down(None)
+
     def update(self):
         self.pos = Vector(*self.velocity) + self.pos
 
@@ -157,4 +170,4 @@ def build(self):
         return game
 
 if __name__ == "__main__":
-    FlappyBirdApp().run()
+    FlappyBirdApp().run()

README.md

@@ -5,4 +5,12 @@ FlappyKivy
 
 Flappy Bird clone programmed in Python + Kivy!
 
-[<img src="https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif">](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=TGRE7G6ASVFVS)
+[<img src="https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif">](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=TGRE7G6ASVFVS)
+
+## Controls
+
+Tap the touch screen, click using mouse, or start FlappyKivy with keyboard support:
+
+```sh
+$ python FlappyBird.py -c input:keyboard:True
+```