Unity 3D: How to pick up object and attached it to player on TriggerEnter?

Questions & Answers
1

I want my player to carry the axe with him when he touched it (see photo below 1.png). I know it has to do with the transform the parent thing but I can’t seem to understand tutorials about it. I only figured out how to destroy the axe when I approach it and create another prefab of the axe near my player, but the axe just stays where it is and doesn’t follow me (hence what I said earlier on how I can’t understand the transform parent). I know what parent and child are (I actually created my player with the camera that follows him with his movement). Here’s what I coded so far:

public Transform Spawnpoint;
public GameObject Prefab;

void OnTriggerEnter(Collider collider)
{
    if (collider.gameObject.tag == "Player")
    {
        Instantiate(Prefab, Spawnpoint.position, Spawnpoint.rotation);
        Destroy(gameObject);
    }
}

}

2

You Could do this in various way…

  1. Your player could have array of weapons from which he can only have one active at a time.
    and OnTriggerEnter could trigger the function.

Attach this on player Object.

For example

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Player_WeaponManager : MonoBehaviour
{

    public GameObject[] Weapons;
    public GameObject _currentWeapon;


    public Transform Spawnpoint;
    public GameObject Prefab;
    // Start is called before the first frame update
    void Start()
    {
        //Assigning default Weapon
        // Weapons[0] could be some other wheapon
        SwitchWeapom(0);
    }

    // Update is called once per frame
    void Update()
    {
        
    }


    public  void SwitchWeapom(int index)
    {
        _currentWeapon = Weapons[index];
        //instantiate Current Weapon
        GameObject obj =  Instantiate(_currentWeapon, Spawnpoint.position, Spawnpoint.rotation);
        obj.transform.parent = this.transform;

    }

 
    void OnTriggerEnter(Collider collider)
    {
        if (collider.gameObject.tag == "AxePickup")
        {
            Destroy(collider.gameObject);
            // On weapons array 2 could be the axe
            SwitchWeapom(2);
        }
    }
}