I need help with my explosion

[Zuhan]

I found a nice prefab on the Unity store of a nuclear explosion. I’ve got it all working, kinda.

They player can die when it explodes too close, but the enemies I have setup do not take any damage. They take damage from everything else I have, but not this explosion so I think it might be something with the explosion code.

Is anyone able to help me with this?

Any help is very much appreciated.

Here’s my explosion code:

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

public class nukeExplosion : MonoBehaviour
{
    [SerializeField] float duration;
    [SerializeField] int damage;
    [SerializeField] float damageRadius;
    [SerializeField] float maxDamageDistance;

    SphereCollider explosionCollider;
    float currentRadius;
    [SerializeField] float expandSpeed;
    [SerializeField] float targetRadius;

    // Start is called before the first frame update
    void Start()
    {
        explosionCollider = GetComponent<SphereCollider>();
        currentRadius = 1f;
        Destroy(gameObject, duration);
        StartCoroutine(ExpandCollider());
    }

    IEnumerator ExpandCollider()
    {
        while (currentRadius < targetRadius)
        {
            currentRadius += expandSpeed * Time.deltaTime;
            explosionCollider.radius = currentRadius;
            yield return null;
        }
    }

    // OnTrigger method to detect nearby objects and apply damage
    private void OnTriggerEnter(Collider other)
    {
        Debug.Log("Collider Stayed: " + other.name);
        IDamage dmg = other.GetComponent<IDamage>();

        if (dmg != null)
        {
            float distance = Vector3.Distance(transform.position, other.transform.position);

            float damageMultiplier = Mathf.Clamp01(1f - (distance / maxDamageDistance));

            int calculatedDamage = Mathf.RoundToInt(damage * damageMultiplier);

            dmg.TakeDamage(damage);
        }
    }

    // Draw the damage radius gizmo for visualization
    private void OnDrawGizmosSelected()
    {
        Gizmos.color = Color.red;
        Gizmos.DrawWireSphere(transform.position, damageRadius);
    }
}

[Cyber_Cats]

Hello @Zuhan,

The nuke script checks the units entering it’s trigger and inflicts damage, this mean the nuke trigger should be able to interact with the units, so for a first lead you can check if your enemies are on a different layer that the player and if yes you can check the collision matrix to see if a collision can occur (Unity - Manual: Layer-based collision detection)
On a second step you can check what differ between the player and the enemy units and based on the collider interaction matrix, see if the collision is possible

[Zuhan]

[Zuhan]

“New users can only share 1 image per post” or something popped up. Made 2 replies.

[Cyber_Cats]

My bad I forgot a detail, did you make sure your enemy script inherits from IDamage?

[Zuhan]

Here’s the EnemyAI script. I think it ok? Also, I appreciate the assistance.

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

public class enemyAI : MonoBehaviour, IDamage
{

    //Serialized fields for enemy ai
    [SerializeField] NavMeshAgent agent;
    [SerializeField] Renderer model;
    [SerializeField] int HP;
    [SerializeField] int pointsToGain;
    [SerializeField] GameObject bullet;
    [SerializeField] float shootRate;
    [SerializeField] Transform shootPos;
    [SerializeField] int faceTargetSpeed;
    bool playerInRange;
    Vector3 playerDir;
    bool isShooting;
    Color enemycolor;
    

    // Start is called before the first frame update
    void Start()
    {
        //updates enemy count on start instance
        gameManager.instance.updateGameGoal(1);
        //get starter enemy color
        enemycolor = model.material.color;
    }

    void Update()
    {

        if (playerInRange)
        {
            playerDir = gameManager.instance.player.transform.position - transform.position;
            agent.SetDestination(gameManager.instance.player.transform.position);

            if (!isShooting)
                StartCoroutine(Shoot());

            if (agent.remainingDistance <= agent.stoppingDistance)
            {
                faceTarget();
            }
        }
    }
    void OnTriggerEnter(Collider other)
    {

        if (other.CompareTag("Player"))
        {
            playerInRange = true;
        }
    }
    void OnTriggerExit(Collider other)
    {

        if (other.CompareTag("Player"))
        {
            playerInRange = false;
        }
    }
    void faceTarget()
    {
        Quaternion rot = Quaternion.LookRotation(playerDir);
        transform.rotation = Quaternion.Lerp(transform.rotation, rot, Time.deltaTime * faceTargetSpeed);
    }

    // Take Damage AI added by Matt
    public void TakeDamage(int damage)
    {
        HP -= damage;
        StartCoroutine(FlashRed());
        //set destination when damaged
        agent.SetDestination(gameManager.instance.player.transform.position);
        if (HP <= 0)
        {            
            //removes a enemy from enemy count
            gameManager.instance.updateGameGoal(-1);
            
            Destroy(gameObject);
            //Points manager points add... (works? Sometimes?)
            PointsManager.Instance.AddPoints(pointsToGain);
            //Game manager points add... (Works, but not connected to player script)
            gameManager.instance.pointsChange(pointsToGain);
            Debug.Log("Enemy died. Player gained " + pointsToGain + " points.");
        }
    }
    IEnumerator FlashRed()
    {
        model.material.color = Color.red;
        yield return new WaitForSeconds(0.1f);
        model.material.color = enemycolor;
    }

    IEnumerator Shoot()
    {
        isShooting = true;
        Instantiate(bullet, shootPos.position, transform.rotation);
        yield return new WaitForSeconds(shootRate);
        isShooting = false;
    }

}