from ursina import Button, Text, Quad


class CheckBox(Button):
    def __init__(self, start_value=False, **kwargs):
        super().__init__(scale=Text.size, model=Quad(radius=.25))
        self.start_value = start_value
        self.value = start_value
        for key, value in kwargs.items():
            setattr(self, key, value)


    def on_click(self):
        self.value = not self.value


    @property
    def value(self):
        return self._value

    @value.setter
    def value(self, new_value):
        self._value = new_value
        self.text = ' x'[int(new_value)]


if __name__ == '__main__':
    from ursina import Ursina, Slider
    app = Ursina()
    CheckBox(start_value=True)
    CheckBox(x=.1, start_value=False)
    Slider(y=-.1)
    app.run()