TutorialRTS/Assets/Scripts/Unit.cs

using UnityEngine;
using UnityEngine.AI;

public class Unit : MonoBehaviour
{
    [Header("Components")]
    public GameObject selectionVisual;
    private NavMeshAgent navAgent;
    private SelectionMarker selectionMarker;

    void Awake()
    {
        //get the components
        navAgent = GetComponent<NavMeshAgent>();
    }
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        if (selectionMarker != null && !navAgent.pathPending && navAgent.remainingDistance <= navAgent.stoppingDistance)
        {
            selectionMarker.DestroySelectionMarker();
            selectionMarker = null;
        }
    }
    public void ToggleSelectionVisual(bool selected)
    {
        selectionVisual.SetActive(selected);
    }
    public void MoveToPosition(Vector3 pos, SelectionMarker marker = null)
    {
        if (selectionMarker != null)
        {
            selectionMarker.DestroySelectionMarker();
            selectionMarker = null;
        }
        navAgent.isStopped = false;
        navAgent.SetDestination(pos);
        selectionMarker = marker;
    }
}