Find objects with tag?

Questions & Answers
1

Hi,

I made a ui script that instantiates a temporary guitext on an object that receives damage. This works with individual objects, but I want it so that for all gameobjects in the scene with specific tags, a guitext is instantiated above them, at their current position. How would I go about this? I attempted it but with no luck.

Here is my current script:

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using System.Linq;

public class HitPoints : MonoBehaviour {

	//the next position to instantiate a point prefab(at the next harmed enemy)
	private Vector2 nextPosition;

	//change the UI canvas transform
	public Canvas prefab;

	//access the UI text component
	public Text text;

	//how much damage to print
	private int _damage;

	//an array of enemies, their damage and health
	private GameObject[] enemies;
	private Transform[] _enemyPositions;
	private Health[] _enemyHealth;
	private int[] _enemyDamage;

	//offset points from entity center
	public Vector3 offset = new Vector3(0f, 1.5f, 0f);
	
	void Awake () {

		//get all enemies in the scene and their health and damage values
		enemies = GameObject.FindGameObjectsWithTag ("Enemy");

		//get the health, damage of their weapon, and position and store into array
		for (int i = 0; i < enemies.Length; i++)
		{
			_enemyHealth _= enemies*.GetComponent<Health>();*_

enemyDamage = enemies*.GetComponentInChildren().damage;*
enemyPositions = enemies*.GetComponent();*
* print(enemies.Length);*
* }*
* }*

* void FixedUpdate () {*

* //as long as there are enemies, execute*
* if(enemies.Length > 0)*
* {*
* print (“there are " + enemies.Length + " enemies.”);*

* //for every enemy*
* for(int i = 0; i < enemies.Length; i++)*
* {*
* //instantiate a point prefab for every hurt enemy*
if(enemyHealth*.hurt)*
* {_
nextPosition = _enemyPositions.position + offset;
text.text = damage.ToString();*
* //print (“got this far”);
Canvas hitPoint = Instantiate(prefab, nextPosition, transform.rotation) as Canvas;
}
}
}
}*_

* //get damage from weapons*
* public void Damage(int dmg)*
* {*
* damage = dmg;*
* }
}*_

2

Instead of creating canvas above their head, I would rather add it to the prefab of the object already positioned but inactive. Then you can just show the GUI:

public void ShowUI()
{
   var objects = GameObject.FindGameObjectsWithTag("Tag");
   foreach(GameObject o in objects){
      var comp = o.transform.Find("Canvas");
      comp.gameObject.SetActive(true);

   }
}