Problem with Missiles in my "Tower defense" game, (Colliders and Overlapsphere)

Questions & Answers
1

Hey,
My game has a theme of ‘Tower Defense’.
and i have problem with missiles.
I have a code for a regular Bullet, it destroy a target on hit.
Now i wanted to upgrade it and added some sort of explosion to it, it should destroy the targets in a collider radius.
here is the code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Bullet : MonoBehaviour
{

    private Transform target;

    public float speed = 70f;
    public float explosionRadius = 0f;
    public GameObject impactEffect;

    public void Seek(Transform _target)
    {
        target = _target;
    }



    void Update()
    {
        if (target == null)
        {
            Destroy(gameObject);
            return;
        }
        Vector3 dir = target.position - transform.position;
        float distanceThisFrame = speed * Time.deltaTime;

        if (dir.magnitude <= distanceThisFrame)
        {
            HitTarget();
            return;
        }

        transform.Translate(dir.normalized * distanceThisFrame, Space.World);
        transform.LookAt(target);
    }

    void HitTarget()
    {
        GameObject effectIns = (GameObject)Instantiate(impactEffect, transform.position, transform.rotation);
        Destroy(effectIns, 5f);

        if (explosionRadius > 0f)
        {
            Explode();
        }
        else
        {
            Damage(target);
        }

        Destroy(gameObject);
    }

    void Explode()
    {
        Collider[] colliders = Physics.OverlapSphere(transform.position, explosionRadius);
        foreach (Collider collider in colliders)
        {
            if (collider.tag == "Enemy")
            {
                Damage(collider.transform);
            }
        }
    }



    void Damage (Transform enemy)
    {
        Destroy(enemy.gameObject);
    }

    void OnDrawGizmosSelected()
    {
        Gizmos.color = Color.red;
        Gizmos.DrawWireSphere(transform.position, explosionRadius);
    }
}

the code for the regular bullet works completly fine, it destroys a target with the tag “Enemy” on hit, but when a explosions radius (explosionRadius = 0f) than nothing happens the missile just dissapear.
i’m confused, did i messed up the void Explode?

2

nvm i just forgot to give the enemys a collider …