TaiWan/Assets/Roaming/Scripts/Controller/Camera/NavController.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;
using UnityEngine.EventSystems;

[RequireComponent(typeof(NavMeshAgent))]
public class NavController : BaseController
{
    /// <summary>
    /// <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ʾ<EFBFBD>Ĺ<EFBFBD>Ȧ<EFBFBD><C8A6><EFBFBD><EFBFBD>
    /// </summary>
    [Tooltip("<22><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ʾ<EFBFBD>Ĺ<EFBFBD>Ȧ<EFBFBD><C8A6><EFBFBD><EFBFBD>")]
    public GameObject preClick;

    /// <summary>
    /// <20>ɵ<EFBFBD><C9B5><EFBFBD><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD><EFBFBD><EFBFBD>
    /// </summary>
    [Tooltip("<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵIJ㣬<C4B2><E3A3AC>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD>Ϊ<EFBFBD><CEAA>")]
    public LayerMask layer;

    /// <summary>
    /// <20><>ɫѰ·<D1B0><C2B7>ת<EFBFBD>ٶ<EFBFBD>
    /// </summary>
    [Tooltip("<22><>ɫѰ·<D1B0><C2B7>ת<EFBFBD>ٶ<EFBFBD>")]
    public float rotateSpeed = 50f;

    /// <summary>
    /// <20><>ɫѰ·<D1B0>ƶ<EFBFBD><C6B6>ٶ<EFBFBD>
    /// </summary>
    [Tooltip("<22><>ɫѰ·<D1B0>ƶ<EFBFBD><C6B6>ٶ<EFBFBD>")]
    public float moveSpeed = 2f;

    /// <summary>
    /// <20><>ɫѰ·<D1B0><C2B7>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>
    /// </summary>
    [Tooltip("<22><>ɫѰ·<D1B0><C2B7>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>")]
    public float MaxNavDistance = 10f;

    /// <summary>
    /// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    /// </summary>
    NavMeshAgent agent;

    GameObject objClick;

    void Start()
    {
        agent = GetComponent<NavMeshAgent>();

        if (agent != null)
        {
            // <20><>ʼ<EFBFBD><CABC><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD>ٶ<EFBFBD>
            agent.speed = moveSpeed;
            agent.angularSpeed = rotateSpeed;
        }
        if(transform.parent != null)
            objClick = Instantiate(preClick, transform.parent.transform);
        else
            objClick = Instantiate(preClick);
        objClick.SetActive(false);

        layerMask = (1 << 0) | (1 << 6);    // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϲ㣨ǽ<E3A3A8><C7BD>
    }
    // <20><><EFBFBD>߼<EFBFBD><DFBC><EFBFBD>
    RaycastHit hit;
    Ray ray;
    int layerMask;
    NavMeshHit meshHit;

    Vector3 mouseDownPos;
    
    void LateUpdate()
    {
        if (CanControl
            && agent.enabled
            && !IsTouchOnControl
            && !IsJoyStickOnControl
            && !IsUIClicked)
        {
            if (Input.GetMouseButtonUp(1) || Input.touchCount == 1)
            {
                if (!EventSystem.current.IsPointerOverGameObject())
                {
                    if (!IsMouseOnControl && Input.touchCount == 1)
                    {
                        ray = CommonData.MainCamera.ScreenPointToRay(Input.touches[0].position);
                    }
                    else
                    {
                        ray = CommonData.MainCamera.ScreenPointToRay(Input.mousePosition);
                    }

                    if (Physics.Raycast(ray, out hit, MaxNavDistance, layerMask))
                    {
                        // Debug.Log(hit.collider.name);
                        // <20>жϵ<D0B6><CFB5><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õIJ<C3B5><C4B2>Ƿ<EFBFBD>һ<EFBFBD><D2BB>
                        if (Mathf.Pow(2, hit.collider.gameObject.layer) == layer.value)
                        {
                            if (NavMesh.SamplePosition(hit.point, out meshHit, 1.0f, NavMesh.AllAreas))
                            {
                                // agent.enabled = true;

                                // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>λ<EFBFBD>ò<EFBFBD><C3B2><EFBFBD>ʾ
                                objClick.transform.position = hit.point;
                                objClick.SetActive(true);

                                // <20>Զ<EFBFBD>Ѱ·<D1B0><C2B7>Ŀ<EFBFBD><C4BF>λ<EFBFBD><CEBB>
                                agent.isStopped = false;
                                agent.SetDestination(hit.point);

                                // <20><>ʶ<EFBFBD>Զ<EFBFBD>Ѱ·<D1B0><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
                                IsNavOnControl = true;
                            }
                        }
                    }
                }
            }
        }

        // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC>̻<EFBFBD><CCBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹͣѰ·
        // if (IsMouseOnControl || IsKeyOnControl || IsJoyStickOnControl)
        if (IsKeyOnControl || IsJoyStickOnControl)
        {
            StopNav();
        }

        if (IsNavOnControl && !IsMoving())
        {
            IsNavOnControl = false;
        }
    }

    /// <summary>
    /// ֹͣѰ·
    /// </summary>
    public void StopNav()
    {
        if (agent.enabled)
        {
            agent.isStopped = true;     // ֹͣ<CDA3>Զ<EFBFBD>Ѱ·
        }

        objClick.SetActive(false);  // <20><><EFBFBD>ص<EFBFBD><D8B5><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
        IsNavOnControl = false;

        // agent.enabled = false;
    }

    // Unity<74><79><EFBFBD><EFBFBD><EFBFBD>Ƿ񵽴<C7B7>Ŀ<EFBFBD>ĵصķ<D8B5><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><D0A9><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>ĵأ<C4B5>
    public bool IsMoving()
    {
        if (!agent.enabled)
            return false;
        //bool r = agent.pathPending || agent.remainingDistance > agent.stoppingDistance || agent.velocity != Vector3.zero;
        //r = agent.enabled ? r : false;
        //return r;

       return agent.enabled ?
            agent.pathPending || agent.remainingDistance > agent.stoppingDistance || agent.velocity != Vector3.zero
            : 
            false;
    }
}