Keep Coding

In the first script:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class InstantiateObjects : MonoBehaviour
{
public GameObject prefab;
public Terrain terrain;
public float yOffset = 0.5f;
private float terrainWidth;
private float terrainLength;
private float xTerrainPos;
private float zTerrainPos;
void Start()
{
//Get terrain size
terrainWidth = terrain.terrainData.size.x;
terrainLength = terrain.terrainData.size.z;
//Get terrain position
xTerrainPos = terrain.transform.position.x;
zTerrainPos = terrain.transform.position.z;
//generateObjectOnTerrain();
}
public void generateObjectOnTerrain(bool parent, string tag)
{
//Generate random x,z,y position on the terrain
float randX = UnityEngine.Random.Range(xTerrainPos, xTerrainPos + terrainWidth);
float randZ = UnityEngine.Random.Range(zTerrainPos, zTerrainPos + terrainLength);
float yVal = Terrain.activeTerrain.SampleHeight(new Vector3(randX, 0, randZ));
//Apply Offset if needed
yVal = yVal + yOffset;
//Generate the Prefab on the generated position
GameObject objInstance = Instantiate(prefab, new Vector3(randX, yVal, randZ), Quaternion.identity);
if (parent)
objInstance.transform.parent = this.transform;
objInstance.transform.tag = tag;
}
}
And in the script that i'm using this:
private void Start()
{
for (int i = 0; i < cloneTeleportations; i++)
{
InstantiateObjects gos = GetComponent<InstantiateObjects>();
gos.prefab = prefab;
gos.generateObjectOnTerrain(true, "ddd");//"Teleportation");
}
}
If i will change it from true to false it will not make the GameObjects childs and if it's true they will be childs. The parent part is working.
But for testing i tried to change the tag to "ddd" and i saw in the first script that the tag is "ddd":
objInstance.transform.tag = tag;
tag is "ddd" and objInstance.transform.tag by default is "Teleportation" when running the game all the cloned gameobjects tagged as "Teleportation" and not "ddd".

in Unity you must first add a tag manually or via c# script and only then you will be able to assign it to a GameObject. If the tag does not exist it's not possible to assign it.