Help with a Script in C# for shooting and lighting

Questions & Answers
1

Hey everyone basically I need a C# script for hitting object with bullet so when it hits above the object will appear area light. This is what I’ve got.

using UnityEngine;
using System.Collections;

public class ThermalDetonator : MonoBehaviour {

float lifespan = 3.0f;
public GameObject light_prefab;

// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update (){
	
	if(gameObject.tag == "Enemy") {
		gameObject.tag = "Untagged";
		Instantiate(light_prefab, transform.position, Quaternion.identity);			
	}
}

}

and this is attached to Bullet prefab that my PC shoots with. And I want it to make so when it hits “target” the name of object tagged as “Enemy” the area light will appear around it and if possible it will go off after lets say 30 second. If anyone could help me with that. I do realize that this script might be useless.
Thank you.

2

One approach would be to have a collider on the enemy object that should it be hit by a bullet, it activates an attached light.

This is a quick attempt at a script that would be attached to an enemy. When the enemy trigger is hit by the bullet, then it would activate the light.

public class Enemy : MonoBehaviour {

    //This is the length of time the light will be on for
    public float lightDuration;
    private Light areaLight;

	void Start () {
        //This allows you to access the light that is attached to the enemy
        areaLight = GetComponent<Light>();

        //Ensures that the light is off be default if you haven't set it up this way
        areaLight.enabled = false;
	}

    void Update() {
        //Used for testing - this would be removed
        if (Input.GetKeyDown(KeyCode.Space)) {
            TurnLightOn();
        }
    }

    //When the trigger is hit by the bullet
    void OnTriggerEnter(Collider other) {
        //The collider of the bullet has hit the enemy
        if (other.gameObject.tag == "bullet") {
            TurnLightOn();
        }
    }

    private void TurnLightOn() {
        StartCoroutine(ActivateLight());
    }

    private IEnumerator ActivateLight() {
        //This will turn the light on
        light.enabled = true;

        //This will cause this function to wait for the light duration
        //whilst still allowing the engine execution to continue
        yield return new WaitForSeconds(lightDuration);
        
        //This will turn the light off
        light.enabled = false;
    }
}

This could be attached to whatever GameObject you wanted to have a switch able light on. You might wish to change the logic that calls the TurnLightOn function.