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GameObject.FindGameObjectsWithTag

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public static function FindGameObjectsWithTag(tag: string): GameObject[];
public static GameObject[] FindGameObjectsWithTag(string tag);

Parameters

tagThe name of the tag to search GameObjects for.

Description

Returns a list of active GameObjects tagged tag. Returns empty array if no GameObject was found.

Tags must be declared in the tag manager before using them. A UnityException will be thrown if the tag does not exist or an empty string or null is passed as the tag.

#pragma strict
// Instantiates respawnPrefab at the location 
// of all game objects tagged "Respawn".
public var respawnPrefab;
public var respawns;
function Start() {
	if (respawns == null)
		respawns = GameObject.FindGameObjectsWithTag("Respawn");
	for (var respawn in respawns) {
		Instantiate(respawnPrefab, respawn.transform.position, respawn.transform.rotation);
	}
}
// Instantiates respawnPrefab at the location 
// of all game objects tagged "Respawn".

using UnityEngine; using System.Collections;

public class ExampleClass : MonoBehaviour { public GameObject respawnPrefab; public GameObject[] respawns; void Start() { if (respawns == null) respawns = GameObject.FindGameObjectsWithTag("Respawn"); foreach (GameObject respawn in respawns) { Instantiate(respawnPrefab, respawn.transform.position, respawn.transform.rotation); } } }

Another example:

	
	// Find the name of the closest enemy
	function FindClosestEnemy () : GameObject {
		// Find all game objects with tag Enemy
		var gos : GameObject[];
		gos = GameObject.FindGameObjectsWithTag("Enemy"); 
		var closest : GameObject; 
		var distance = Mathf.Infinity; 
		var position = transform.position; 
		// Iterate through them and find the closest one
		for (var go : GameObject in gos)  { 
			var diff = (go.transform.position - position);
			var curDistance = diff.sqrMagnitude; 
			if (curDistance < distance) { 
				closest = go; 
				distance = curDistance; 
			} 
		} 
		return closest;	
	}
	// Find the name of the closest enemy
	
    GameObject FindClosestEnemy() {
        GameObject[] gos;
        gos = GameObject.FindGameObjectsWithTag("Enemy");
        GameObject closest = null;
        float distance = Mathf.Infinity;
        Vector3 position = transform.position;
        foreach (GameObject go in gos) {
            Vector3 diff = go.transform.position - position;
            float curDistance = diff.sqrMagnitude;
            if (curDistance < distance) {
                closest = go;
                distance = curDistance;
            }
        }
        return closest;
    }
}

Another example, testing for empty array:

    // Search for game objects with a tag that is not used

function Start () { var gos : GameObject[]; gos = GameObject.FindGameObjectsWithTag("fred"); if (gos.length == 0) { Debug.Log("No game objects are tagged with fred"); } }