No way to detect button combinations #6

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1. Zuzu-Typ commented on Jul 1, 2021

   

   Zuzu-Typ

   on Jul 1, 2021

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   Hi there (:

   Unfortunately, XInput-Python does not offer this as a built-in feature, but it's still fairly simple to implement.

   I've assembled two examples of how this can be done using the EventHandler class:

   import XInput
   
   class CustomHandler(XInput.EventHandler):
       
       A_AND_B_BUTTONS = XInput.BUTTON_A | XInput.BUTTON_B
   
       MASK = 0xFFFFFF
       
       def __init__(self, *controllers):
           super().__init__(*controllers, filter = CustomHandler.A_AND_B_BUTTONS)
   
           self.buttons_pressed = 0
   
       def process_button_event(self, event):
           if event.type == XInput.EVENT_BUTTON_PRESSED:
               self.buttons_pressed |= event.button_id
           else:
               self.buttons_pressed &= (CustomHandler.MASK ^ event.button_id)
   
           if self.buttons_pressed == CustomHandler.A_AND_B_BUTTONS:
               print("CustomHandler detected: A and B have been pressed.")
           
       def process_stick_event(self, event):
           pass
       def process_trigger_event(self, event):
           pass
       def process_connection_event(self, event):
           pass
   
   class AlternativeCustomHandler(XInput.EventHandler):
       
       def __init__(self, *controllers):
           super().__init__(*controllers, filter = XInput.BUTTON_A | XInput.BUTTON_B)
   
           self.buttons_pressed = {"A" : False, "B": False}
   
       def process_button_event(self, event):
           if event.type == XInput.EVENT_BUTTON_PRESSED:
               self.buttons_pressed[event.button] = True
           else:
               self.buttons_pressed[event.button] = False
   
           if all(self.buttons_pressed.values()):
               print("AlternativeCustomHandler detected: A and B have been pressed.")
           
       def process_stick_event(self, event):
           pass
       def process_trigger_event(self, event):
           pass
       def process_connection_event(self, event):
           pass
       
   main_handler = CustomHandler(0, 1, 2, 3)
   alt_handler = AlternativeCustomHandler(0, 1, 2, 3)
   thread = XInput.GamepadThread(main_handler)
   thread.add_event_handler(alt_handler)

   Each of the event handlers filter out any buttons, except for the A and B buttons, which in this example are the ones that shall be pressed together.
   The event handlers then keep track of the state of both buttons in some way and print a message on the console when both buttons are currently being pressed.

   Admittedly, the filter/handler system isn't very great. Maybe I'll come up with a better solution some day.

   Cheers,
   --Zuzu_Typ--
2. Zuzu-Typ

   self-assigned this

   on Jul 1, 2021
3. Zuzu-Typ

   added

   questionFurther information is requestedFurther information is requested

   on Jul 1, 2021