unity导航系统如何创建npc巡逻代码
时间: 2023-12-12 22:03:06 浏览: 97
要使用Unity的导航系统创建NPC巡逻,您可以按照以下步骤编写代码:
1.在“NPC”对象上添加导航代理组件。
```csharp
NavMeshAgent agent = GetComponent<NavMeshAgent>();
```
2.创建一个巡逻路径。您可以使用数组来存储路径点。
```csharp
public Transform[] waypoints;
```
3.在“Patrol”脚本中,编写代码以使NPC沿着巡逻路径移动。
```csharp
int currentWaypointIndex = 0; // 当前路径点的索引
void Update() {
// 如果到达了当前路径点,就移动到下一个路径点
if (agent.remainingDistance < 0.5f && !agent.pathPending) {
currentWaypointIndex = (currentWaypointIndex + 1) % waypoints.Length;
agent.SetDestination(waypoints[currentWaypointIndex].position);
}
}
```
4.在场景中添加一个触发器,以便当NPC到达巡逻路径的末尾时,它会返回到路径的起点。
```csharp
void OnTriggerEnter(Collider other) {
// 如果触发器是与路径点相关的,则返回到第一个路径点
if (other.transform == waypoints[currentWaypointIndex]) {
currentWaypointIndex = 0;
agent.SetDestination(waypoints[currentWaypointIndex].position);
}
}
```
在以上代码中,我们使用NavMeshAgent代理组件控制NPC的移动,并使用Transform数组来存储路径点。在Update方法中,我们检查是否到达了当前路径点,如果是,则移动到下一个路径点。在OnTriggerEnter方法中,我们检查碰撞器是否与路径点相关,如果是,则返回到第一个路径点。您可以根据需要进行自定义和修改。
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