Did the user depress and release the button to signify a click?
        MouseStateType is the button to query. Values found under StateTypes.py

def is_clicked(self, MouseStateType):
        """
        Did the user depress and release the button to signify a click?
        MouseStateType is the button to query. Values found under StateTypes.py
        """
        return self.previous_mouse_state.query_state(MouseStateType) and (
        not self.current_mouse_state.query_state(MouseStateType))