WorldInteraction

using UnityEngine;
using System.Collections;

public class WorldInteraction : MonoBehaviour
{

    UnityEngine.AI.NavMeshAgent playerAgent;
    Animator playerAnim;
    private bool walking;
    void Start()
    {
        playerAnim = GetComponent<Animator>();
        playerAgent = GetComponent<UnityEngine.AI.NavMeshAgent>();

    }

    void Update()
    {
        //  Check for Mouse Button Down for Interaction
        //  Check for Pointer hover UI or GameObject
        //  If hover UI then dont set Ray to World
        if (Input.GetMouseButtonDown(0) && !UnityEngine.EventSystems.EventSystem.current.IsPointerOverGameObject())
            GetInteraction();
        Debug.DrawRay(transform.position, transform.forward * 5f, Color.red);
    }


    void GetInteraction()
    {
        // Send ray from MousePoint (ScreenPointToRay)
        // store the interaction information
        // store the interacted object information
        Ray interactionRay = Camera.main.ScreenPointToRay(Input.mousePosition);
        RaycastHit interactionInfo;
        if (Physics.Raycast(interactionRay, out interactionInfo, Mathf.Infinity))
        {
            // declares that interaction object is = to collider from gameObject from interactionray information
            GameObject interactionObject = interactionInfo.collider.gameObject;
            if (interactionObject.tag == "Enemy")
            {
                interactionObject.GetComponent<Interactable>().MoveToInteraction(playerAgent);
            }
            else
            {
                // generate a path form player to the target
                playerAgent.destination = interactionInfo.point;
                walking = true;
            }
        }
        playerAnim.SetBool("isWalking", walking);
    }
}