func _fixed_process(delta):
    if Input.is_action_just_pressed("ui_cancel") == true:
        if isEcpPressed == false:
            Input.set_mouse_mode(Input.MOUSE_MODE_VISIBLE)

            #get_tree().quit()
            t = menuScene.instance()
            self.add_child(t)
            t.set_name('Pause-Menu')
            isEcpPressed = true
            ctrlIsPressed = false

        elif isEcpPressed == true:
            Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
            isEcpPressed = false
            self.remove_child(t)