RaindropViewer/Assets/Raindrop/UI/joystickToMovementBackend.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Lean;
using Raindrop;
using OpenMetaverse;
using Raindrop.Netcom;
using Lean.Gui;
using Raindrop.ServiceLocator;
using Vector2 = UnityEngine.Vector2;

//make the joystick position drive the user's movement (u,d,l,r) :)
public class joystickToMovementBackend : MonoBehaviour
{
    public LeanJoystick variableJoystick;
    public GameObject theJoystickInScene;
    public float joyThresh = 0.7f;
    private RaindropInstance instance { get { return ServiceLocator.Instance.Get<RaindropInstance>(); } }
    private RaindropNetcom netcom { get { return instance.Netcom; } }
    private GridClient client { get { return instance.Client; } }

    bool Active => instance.Client.Network.Connected;

    void Start()
    {
        if (theJoystickInScene.GetComponent<LeanJoystick>() == null)
        {
            Debug.LogError("the joystick object is not found!");
        } 
        variableJoystick = theJoystickInScene.GetComponent<LeanJoystick>();

        //set zero.
        OnJoyUp();
        
        variableJoystick.OnUp.AddListener(OnJoyUp);
        variableJoystick.OnSet.AddListener(OnJoySet);
    }

    private void OnJoySet(Vector2 arg0)
    {
        instance.Movement.set2DInput(arg0);
    } 

    // no more sideways movment.
    private void OnJoyUp()
    {
        if (! Active)
        {
            return;
        }
        instance.Movement.zero2DInput();
    }
}