KeyboardInputLayer.py

import cocos

class KeyboardInputLayer(cocos.layer.Layer):
    """ This is a simpel reusable class that accepts keyboard inpit and maintains a set of currently pressed keys.
    """
    
    # You need to tell cocos that your layer is for handling input!
    # This is key (no pun intended)!
    # If you don't include this you'll be scratching your head wondering why your game isn't accepting input
    is_event_handler = True

    def __init__(self):
        """ """
        super(KeyboardInputLayer, self).__init__()
        self.keys_being_pressed = set()
        
    def on_key_press(self, key, modifiers):
        """ """
        self.keys_being_pressed.add(key)

    def on_key_release(self, key, modifiers):
        """ """
        if key in self.keys_being_pressed:
            self.keys_being_pressed.remove(key)