Bullet

A bullet require a manual check in FixedUpdate to detect obstacles without delay.

using System.Collections;
using System.Collections.Generic;
using EODE.Wonderland;
using UnityEngine;

public class Bullet : MonoBehaviour {
    public UnityEngine.Events.UnityEvent OnCollide;

    public float DestroyAfter = 3f;
    public float MaxDistance = 50f;

    public Transform Owner { get; set; }

    bool _stopped = false;
    Vector3 _prevPos;
    bool _ready = false;

    void Start() {
        // first position
        _prevPos = transform.position;
        _ready = true;

        StartCoroutine(DistanceRoutine());
    }

    void FixedUpdate() {
        if (!_ready) return;

        // manually detect collision
        var dir = transform.position - _prevPos;
        RaycastHit hit;
        if (Physics.Raycast(_prevPos, dir.normalized, out hit, dir.magnitude + 0.05f, gameObject.GetLayerMask())) {
            if (hit.transform != Owner) {
                transform.position = hit.point;
                Stop();
            }
        }

        _prevPos = transform.position;
    }

    IEnumerator DistanceRoutine() {
        var startAt = transform.position;

        do {
            yield return new WaitForSeconds(1f);
        }
        while (!_stopped && Vector3.Distance(startAt, transform.position) < MaxDistance);

        Stop();
    }

    void OnTriggerEnter(Collider col) {
        if (col.transform == Owner) return;
        Stop();
    }

    void Stop() {
        if (_stopped) return;

        _stopped = true;
        OnCollide.Invoke();

        var da = gameObject.AddComponent<DestroyAfter>();
        da.Delay = DestroyAfter;
    }
}