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using UnityEngine;

using System.Collections;

public class WayPoint : MonoBehaviour ｛

#region

public WayPoint nextWayPoint;

#endregion

void OnDrawGizmosSelected() ｛

Gizmos.color = Color.green;

Gizmos.DrawLine(transform.position, nextWayPoint.gameObject.transform.position);

｝

｝

挂载在AI上的脚本：

using UnityEngine;

using System.Collections;

public class AI : MonoBehaviour ｛

#region variable

[SerializeField] //保护封装性

private float speed = 3f;

[SerializeField]

private WayPoint targetPoint, startPoint;

[SerializeField]

private Hero mage;

#endregion

// Use this for initialization

void Start () ｛

if (Vector3.Distance(transform.position, startPoint.transform.position) < 1e-2f) ｛

targetPoint = startPoint.nextWayPoint;

｝ else ｛

targetPoint = startPoint;

｝

StartCoroutine(AINavMesh());

｝

IEnumerator AINavMesh() ｛

while(true) ｛

if (Vector3.Distance(transform.position, targetPoint.transform.position) < 1e-2f) ｛

targetPoint = targetPoint.nextWayPoint;

yield return new WaitForSeconds(2f);

｝

if (mage != null && Vector3.Distance(transform.position, mage.gameObject.transform.position) <= 6f) ｛

Debug.Log("侦测到敌人，开始追击！！！");

yield return StartCoroutine(AIFollowHero());

｝

Vector3 dir = targetPoint.transform.position - transform.position;

transform.Translate(dir.normalized * Time.deltaTime * speed);

yield return new WaitForEndOfFrame();

｝

｝

IEnumerator AIFollowHero() ｛

while (true) ｛

if (mage != null && Vector3.Distance(transform.position, mage.gameObject.transform.position) > 6f) ｛

Debug.Log("敌人已走远，放弃攻击！！！");

yield break;

｝

Vector3 dir = mage.transform.position - transform.position;

transform.Translate(dir.normalized * Time.deltaTime * speed * 0.8f);

yield return new WaitForEndOfFrame();

｝

｝

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挂载在Mage上的脚本：

using UnityEngine;

using System.Collections;

//在本实例中起到标记的作用

public class Hero : MonoBehaviour ｛

｝