U3D基础之人工智能—敌人巡逻

敌人巡逻

首先在场景中创建几个巡逻的点，将玩家和敌人的Tag设置为相应的Tag
其中enemy的组件如下

在Enemy脚本中代码如下

public class Enemy : MonoBehaviour
{
    public float PatrolSpeed = 3f;
    public float PatrolWaitTime = 1f;
    public Transform PatrolWayPoints;
    private NavMeshAgent agent;
    private float PatrolTimer = 0f;
    private int wayPointsIndex = 0;
    private void Start()
    {
        agent = GetComponent<NavMeshAgent>();
    }
    private void Update()
    {
        Patrolling();
    }
    /// 

    /// 巡逻函数
    /// 
    void Patrolling()
    {
        agent.isStopped = false;//首先将运动状态设置为运动
        agent.speed = PatrolSpeed;//设置巡逻速度
        if (agent.remainingDistance < agent.stoppingDistance)//如果已经到达目标点
        {
            PatrolTimer += Time.deltaTime;
            if (PatrolTimer > PatrolWaitTime)
            {
                if (wayPointsIndex == PatrolWayPoints.childCount - 1)
                    wayPointsIndex = 0;
                else
                    wayPointsIndex++;
                PatrolTimer = 0;    
            }
        }
        else
            PatrolTimer = 0;
        agent.destination = PatrolWayPoints.GetChild(wayPointsIndex).position;
    }
}

因为其中判断是否到达目标点涉及到距离的比较，需要将敌人的Stopping Distance设置一下，代表之间的冗余。