pastemyst | (untitled)

(untitled)

NavMeshTargeting.cs

C#copy raw

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

[RequireComponent(typeof(NavMeshAgent))]
public class NavMeshTargeting : MonoBehaviour
{
    [SerializeField] private NavMeshAgent _targetAgent;
    private NavMeshAgent _agent;
    private HashSet<NavMeshAgent> _collidedAgents;
    private float _cachedSpeed;

private void Awake()
    {
        _agent = GetComponent<NavMeshAgent>();
        Assert.IsNotNull(_targetAgent);
        _agent.SetDestination(_targetAgent.gameObject.transform.position);
        _collidedAgents = new HashSet<NavMeshAgent>();
        _cachedSpeed = _agent.speed;
    }

private void Update()
    {
        if (_collidedAgents.Count > 0)
        {
            // We're bumping at least one agent, so check if our destination has clear line of sight. if not, stop it
            if (Physics.Raycast(transform.position, _agent.destination, out RaycastHit hit, Mathf.Infinity))
            {
                if (hit.collider.TryGetComponent(out NavMeshAgent blockingAgent))
                {
                    _agent.speed = 0f;
                    Debug.Log("blocked. freezing motion for " + gameObject.name);
                }
                else
                {
                    _agent.speed = _cachedSpeed;
                    Debug.Log("unblocked. Resuming motion for " + gameObject.name);
                }
            }
        }
    }

private void OnTriggerEnter(Collider other)
    {
        if (other.TryGetComponent(out NavMeshAgent agent))
        {
            // we collided with an agent, add it to the list
            _collidedAgents.Add(agent);
        }
    }

private void OnTriggerExit(Collider other)
    {
        if (other.TryGetComponent(out NavMeshAgent agent))
        {
            // we're no longer colliding with an agent so remove it
            _collidedAgents.Remove(agent);
            if (_collidedAgents.Count == 0)
            {
                _agent.speed = _cachedSpeed;
                Debug.Log("unblocked. Resuming motion for " + gameObject.name);
            }
        }
    }
}

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stats: 67 lines, 180 words, 2.13kb