class TouchEvent:
    def __init__(self, x, y, pressed=True):
        self.x = x
        self.y = y
        self.pressed = pressed


class TouchController:
    def __init__(self, touch_device=None):
        self.touch_device = touch_device

    def read_event(self):
        if not self.touch_device:
            return None

        point = self.touch_device.read()

        if not point:
            return None

        return TouchEvent(point["x"], point["y"], point.get("pressed", True))