Clicking on static object still moves NavMesh agent?

Hi,

I am trying to make a point and click game using the nav mesh to control player movement. In the game I can walk to a table with objects on it (table and objects marked as static), when I try and click on the objects or the table it seems the navmesh is still detecting a click and moving the player, I also have an inventory UI and button which block the clicks from getting to the Navmesh and I would like the same to work with the game objects.

Thanks for any help

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.AI;
5. using UnityEngine.EventSystems;
6.  
7. public class PlayerMovement : MonoBehaviour
8. {
9.  
10.     NavMeshAgent agent;
11.  
12.  
13.     private void Start()
14.     {
15.         agent = GetComponent<NavMeshAgent>();
16.     }
17.  
18.     private void Update()
19.     {
20.         if(Input.GetMouseButtonDown(0) && !UnityEngine.EventSystems.EventSystem.current.IsPointerOverGameObject())
21.         {
22.             RaycastHit hit;
23.             Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
24.             if(Physics.Raycast(ray, out hit, Mathf.Infinity))
25.             {
26.                 agent.SetDestination(hit.point);
27.             }
28.         }
29.     }
30.  
31.  
32. }
33.