Am I applying command pattern correctly?

Question

I'm currently working on a Unity project and I decided to use command pattern to manage the buttons of the interface among other things. I'm not sure if I'm applying the patter the way I should because I'm not using an invoker for example.

This is an example of the code I have:

public interface iCommand
{
    void Execute();
}

public class GenerateCommand : iCommand
{
        private Generator _generator;
    private Slider _sliderWidth, _sliderHeight;

    public GenerateCommand(Generator generator, Slider sliderWidth, Slider sliderHeight)
    {
        this._generator = generator;
        this._sliderWidth = sliderWidth;
        this._sliderHeight = sliderHeight;
    }

    public void Execute()
    {
        _generator.Destroy();
        _generator.SetWidth((int)_sliderWidth.value);
        _generator.SetHeight((int)_sliderHeight.value);
        _generator.Generate();
        _generator.Build();
    }
}

public class AppController : MonoBehaviour {

public Generator generator;
public Slider sliderWidth, sliderHeight;
public GameObject generatorController, playerController, UI, app, room, spawnLocation;


private iCommand _command;


void Start()
{
    generator = new DepthFirstSearchGenerator(room: room, spawnLocation: spawnLocation);
    Generate();
}

public void Generate()
{
    _command = new GenerateCommand(generator: generator, sliderWidth: sliderWidth, sliderHeight: sliderHeight);
    _command.Execute();
}

And then i call the Generate() function from the button when clicked.