How do I setup my enemy to attack player or my companions?

Right now it can target and attack the player. How do I make my enemy attack my companions too? Should I just duplicate the set target and hurt player function and rename it to my companion name?

Here is my enemy script, its connected to multiple scripts and managers. A lot of other stuff you can just ignore too:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class Enemy : NPC
6. {
7.     [SerializeField]
8.     private CanvasGroup healthGroup; //Show enemy health bar when selected
9.  
10.     [SerializeField]
11.     private GameObject bloodSplash;
12.  
13.     private Transform zombieTarget;
14.  
15.     private IState currentState;
16.  
17.     //Get Components
18.     private Collider2D enemyCollider;
19.     private SpriteRenderer sprite;
20.  
21.     [SerializeField]
22.     private LootTable lootTable;
23.  
24.     public float MyAttackRange { get; set; }
25.  
26.     public float MyAttackTime { get; set; }
27.  
28.     public Vector3 MyStartPosition { get; set; }
29.  
30.     [SerializeField]
31.     private float initAggroRange;
32.  
33.     public float MyAggroRange { get; set; }
34.  
35.     public bool InRange
36.     {
37.         get
38.         {
39.             return Vector2.Distance(transform.position, MyTarget.position) < MyAggroRange;
40.         }
41.     }
42.  
43.     public bool isPatrolling = true;
44.     public bool isAlive = true;
45.     public bool isAttacking = false;
46.  
47.     private float timeBetweenMove = 1;
48.     private float timeBetweenMoveCounter;
49.     private float timeToMove = 2;
50.     private float timeToMoveCounter;
51.  
52.     public GameObject prefab;
53.  
54.  
55.     protected void Awake()
56.     {
57.         MyStartPosition = transform.position; //Set enemy start position
58.         MyAggroRange = initAggroRange;
59.         MyAttackRange = 1; //Enemy Attack Range
60.         ChangeState(new IdleState());
61.     }
62.  
63.  
64.     protected override void Update()
65.     {
66.         if (IsAlive)
67.         {
68.             if (!IsUsingSkill)
69.             {
70.                 MyAttackTime += Time.deltaTime;
71.             }
72.  
73.             currentState.Update();
74.         }
75.  
76.         base.Update();
77.  
78.         if (!isAttacking)
79.         {
80.             RandomMovement();
81.         }
82.     }
83.  
84.  
85.     public override Transform Select()
86.     {
87.         healthGroup.alpha = 1;
88.  
89.         return base.Select();
90.     }
91.  
92.     public override void DeSelect()
93.     {
94.         healthGroup.alpha = 0;
95.  
96.         base.DeSelect();
97.     }
98.  
99.     public void RandomMovement()
100.     {
101.         if (isPatrolling && isAlive)
102.         {
103.             timeToMoveCounter -= Time.deltaTime;
104.             MyRigidbody.velocity = Direction;
105.  
106.             if (timeToMoveCounter < 0f)
107.             {
108.                 isPatrolling = false;
109.                 timeBetweenMoveCounter = Random.Range(timeBetweenMove * 0.75f, timeBetweenMove * 1.25f);
110.             }
111.         }
112.         else
113.         {
114.             timeBetweenMoveCounter -= Time.deltaTime;
115.             MyRigidbody.velocity = Vector2.zero;
116.  
117.             if (timeBetweenMoveCounter < 0f)
118.             {
119.                 isPatrolling = true;
120.                 timeToMoveCounter = Random.Range(timeToMove * 0.75f, timeBetweenMove * 1.25f);
121.  
122.                 //Direction = Random.insideUnitSphere;
123.  
124.                 Direction = new Vector3(Random.Range(-1f, 1f) * MoveSpeed, Random.Range(-1f, 1f) * MoveSpeed, 0f).normalized;
125.  
126.                 //MyRigidbody.AddForce(new Vector3(Direction.x, Direction.y, 0f));
127.             }
128.         }
129.     }
130.  
131.  
132.     public override void TakeDamage(float damage, Transform source) //Make enemy take damage when hit
133.     {
134.         if (!(currentState is EvadeState && isAlive)) //if (health.MyCurrentValue > 0)
135.         {
136.             SetTarget(source);
137.  
138.             base.TakeDamage(damage, source);
139.  
140.             OnHealthChanged(health.MyCurrentValue);
141.  
142.             //Blood Splash
143.             Instantiate(bloodSplash, transform.position, Quaternion.identity);
144.  
145.             StartCoroutine("DamageFlash");
146.  
147.             Select(); //Show health bar
148.  
149.             if (health.MyCurrentValue <= 0)
150.             {
151.                 isPatrolling = false;
152.  
153.                 isAlive = false;
154.  
155.                 enemyCollider = GetComponent<Collider2D>();
156.                 enemyCollider.enabled = false;
157.  
158.                 //GetComponent<SpriteRenderer>().material.color = Color.gray;
159.                 sprite = GetComponent<SpriteRenderer>();
160.                 sprite.sortingOrder = -1;
161.  
162.                 DeSelect(); //Hide health bar
163.             }
164.         }
165.     }
166.  
167.     public void ChangeState(IState newState) //Change the enemys state
168.     {
169.         if (currentState != null)
170.         {
171.             currentState.Exit();
172.         }
173.  
174.         currentState = newState;
175.  
176.         currentState.Enter(this);
177.     }
178.  
179.     public void SetTarget(Transform target)
180.     {
181.         if (MyTarget == null && !(currentState is EvadeState))
182.         {
183.             float distance = Vector2.Distance(transform.position, target.position);
184.             MyAggroRange = initAggroRange;
185.             MyAggroRange += distance;
186.             MyTarget = target;
187.         }
188.     }
189.  
190.     public void Reset()
191.     {
192.         this.MyTarget = null;
193.         this.MyAggroRange = initAggroRange;
194.         this.MyHealth.MyCurrentValue = this.MyHealth.MyMaxValue;
195.         OnHealthChanged(health.MyCurrentValue);
196.     }
197.  
198.     public override void Interact() //Interact with enemy
199.     {
200.         if (!IsAlive)
201.         {
202.             lootTable.ShowLoot();
203.         }
204.     }
205.  
206.     public IEnumerator DamageFlash() //Change color
207.     {
208.         if (health.MyCurrentValue > 0)
209.         {
210.             GetComponent<SpriteRenderer>().material.color = new Color32(255, 160, 171, 255); //Pink
211.             yield return new WaitForSeconds(0.3f);
212.             GetComponent<SpriteRenderer>().material.color = Color.white;
213.             yield return new WaitForSeconds(0.3f);
214.         }
215.         else
216.         {
217.             float infectedChance = Random.Range(0f, 1f);
218.  
219.             if (infectedChance > 0.3f)
220.             {
221.                 GetComponent<SpriteRenderer>().material.color = Color.green;
222.  
223.                 StartCoroutine("Infected");
224.             }
225.             else
226.             {
227.                 GetComponent<SpriteRenderer>().material.color = Color.gray;
228.             }
229.         }
230.     }
231.  
232.     public IEnumerator Infected()
233.     {
234.         yield return new WaitForSeconds(3);
235.  
236.         GameObject gameObject = Instantiate<GameObject>(prefab, transform.position, prefab.transform.rotation);
237.  
238.         Destroy(this.gameObject);
239.     }
240. }
241.  

 

By changing target and duplicate your enemy code to your companion. Then delete/change useless functionality for companions, like: movement.
After everything works, rebuild your character/companion classes to derive from a class.. or just your companion can derive from character class.

Code (CSharp):

1.  SetTarget(companion.transform);

funny to see

Code (CSharp):

1. public class Enemy : NPC

NPC = non playing character

 

thanks I will try that. My scripts is kinda a mess at the moment and there are stuff I need from NPC script. Lots of moving codes around lol.

 

The way how i setup for the enemy to select a target is enter trigger 2d. You think player and companion share the same tag will work?

 

It doesn't look like you are checking the tags anywhere. Right now it looks like you're calling SetTarget on whatever transform is your "source" of damage. So it should already work on both the player and companion, right? The only thing that matters is which on Damages the enemy last. (unless I'm misreading your code)

 

Yeah bc I didn't post it there. Everything is working properly and linked to different scripts. The script says tiggerenter2D.... if tag = player then get enemy parent to set target. The script is attached on a big circle collider which also used for aggro range.

 

I tried it and added a bunch of codes to check (i.e player or ally and access a specific script). I got a null reference for target. Its really bad coding and messy anyways. I did for find an easier way. All it takes is 2 lines of code which is way more efficient. First line is get the tag:

Code (CSharp):

1. if (collision.tag == "Player" || collision.tag == "Ally")

Put a damage function in your ally and player script with the same exact word by word

Add this to your enemy attack

Code (CSharp):

1. MyTarget.SendMessage("HurtPlayer", DamageToGive);

Since the Player and Ally both have the same damage function. Either one can take damage when being attacked. Its working great.