84 lines
2.4 KiB
C#
84 lines
2.4 KiB
C#
using System;
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using System.Collections.Generic;
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using Mirror;
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using UnityEngine;
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using UnityEngine.AI;
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[RequireComponent(typeof(LineRenderer))]
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public class GuideArrowPath : NetworkBehaviour
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{
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// 内部变量
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private NavMeshPath navPath;
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private LineRenderer lineRenderer;
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void Start()
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{
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// 获取LineRenderer组件
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lineRenderer = GetComponent<LineRenderer>();
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// 初始化NavMeshPath
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navPath = new NavMeshPath();
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// 尝试第一次更新路径
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}
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/// <summary>
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/// 根据起点与终点计算最短路径，并更新Line Renderer的显示
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/// </summary>
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public void SetPath(Vector3 start, Vector3 end)
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{
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navPath = new NavMeshPath();
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// 使用NavMesh计算路径，静态障碍物会自动参与计算
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if (NavMesh.CalculatePath(start, end, NavMesh.AllAreas, navPath))
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{
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// 如果计算出有效路径且路径点数量大于1则更新LineRenderer
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if (navPath.corners.Length > 1)
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{
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lineRenderer.positionCount = navPath.corners.Length;
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List<Vector3> path = new List<Vector3>();
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foreach (Vector3 point in navPath.corners)
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{
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path.Add(new Vector3(point.x,0.5f,point.z));
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}
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lineRenderer.SetPositions(path.ToArray());
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}
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else
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{
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lineRenderer.positionCount = 0;
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}
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}
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else
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{
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Debug.LogWarning("未能计算出有效路径！");
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lineRenderer.positionCount = 0;
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}
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}
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public float GetToTargetDis(Vector3 start, Vector3 end)
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{
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float dis = -1;
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if (NavMesh.CalculatePath(start, end, NavMesh.AllAreas, navPath))
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{
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if (navPath.corners.Length > 1)
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{
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dis = 0;
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for (int i = 0; i < navPath.corners.Length; i++)
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{
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if (i + 1 < navPath.corners.Length)
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{
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dis+= Vector3.Distance(navPath.corners[i], navPath.corners[i + 1]);
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}
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}
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}
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}
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return dis;
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}
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public void ShowPath()
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{
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gameObject.GetComponent<LineRenderer>().enabled = true;
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}
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public void ClosePath()
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{
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gameObject.GetComponent<LineRenderer>().enabled = false;
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}
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} |