Help with player death/respawn coroutine?

Questions & Answers
1

I’m fairly new to c-sharp and unity, and I have a script where if an enemy hits the player, it will activate a coroutine that kills and then respawns the player. Problem is, whenever I run the program and the player hits the enemy, nothing happens. I then get the error message: The object of type ‘Rigidbody2D’ has been destroyed but you are still trying to access it. Your script should either check if it is null or you should not destroy the object. I messed around with the script a little and deduced that the problem begins with the “Hide Player Script” code. I’m not quite sure what to do. Help?

using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;
using UnityEngine;
 
 
public class LevelManager : MonoBehaviour {
 
    public GameObject CurrentCheckPoint;
    private Rigidbody2D Player;
 
    // Particles
    public GameObject DeathParticle;
    public GameObject RespawnParticle;
 
    //Respawn Delay
    public float RespawnDelay;
 
    //Point Penalty on Death
    public int PointPenaltyOnDeath;
 
    //Store Gravity Value
    private float GravityStore;
 
    //Use this for initialization
    void Start () {
        Player = FindObjectOfType<Rigidbody2D> ();
    }
 
    public void RespawnPlayer(){
        StartCoroutine ("RespawnPlayerCo");
    }
 
    public IEnumerator RespawnPlayerCo(){
        //Hide Player
        //Player.isKinematic = false;
        Player.GetComponent<Renderer> ().enabled = false;
        //Generate Death Particle
        Instantiate (DeathParticle, Player.transform.position, Player.transform.rotation);
        //Point Penalty
        ScoreManager.AddPoints(-PointPenaltyOnDeath);
        //Match Players transform position
        Player.transform.position = CurrentCheckPoint.transform.position;
        //Show player
        //Player.isKinematic = true;
        Player.GetComponent<Renderer> ().enabled = true;
        //Gravity Reset
        GravityStore = Player.GetComponent<Rigidbody2D>().gravityScale;
        Player.GetComponent<Rigidbody2D>().gravityScale = 0f;
        Player.GetComponent<Rigidbody2D>().velocity = Vector2.zero;
        //Gravity restore
        Player.GetComponent<Rigidbody2D>().gravityScale = GravityStore;
        //Debug Message
        Debug.Log ("Player Respawn");
        //Respawn Delay
        yield return new WaitForSeconds (RespawnDelay);
        //Spawn Particle
        Instantiate (RespawnParticle, CurrentCheckPoint.transform.position, CurrentCheckPoint.transform.rotation);
    }
}
2

This should work, I have not tested the code so it may not work, are you starting the co-routine from a different script?

public class LevelManager : MonoBehaviour
{

    public GameObject CurrentCheckPoint;
    public GameObject Player;
    public Rigidbody2D PlayerRb;
    public Renderer playersRender;

    // Particles
    public GameObject DeathParticle;
    public GameObject RespawnParticle;
    //Respawn Delay
    public float RespawnDelay;
    //Point Penalty on Death
    public int PointPenaltyOnDeath;
    //Store Gravity Value
    private float GravityStore;
    //Use this for initialization
    void Start()
    {
        PlayerRb = GetComponent<Rigidbody2D>();
        playersRender.GetComponent<Renderer>();
    }

    public void RespawnPlayer()
    {
        StartCoroutine("RespawnPlayerCo");
    }

    public IEnumerator RespawnPlayerCo()
    {
        //Hide Player
        //Player.isKinematic = false;
        playersRender.enabled = false;

        //Generate Death Particle
        Instantiate(DeathParticle, Player.transform.position, Player.transform.rotation);
        //Point Penalty
      //  ScoreManager.AddPoints(-PointPenaltyOnDeath);
        //Show player
        //Player.isKinematic = true;
       
        //Gravity Reset
        GravityStore = PlayerRb.gravityScale;
        PlayerRb.gravityScale = 0f;
        PlayerRb.velocity = Vector2.zero;
         
         
        yield return new WaitForSeconds(RespawnDelay);
        //Gravity restore   
        PlayerRb.gravityScale = GravityStore;
        //Enable players render
        playersRender.enabled = true;
        //Instantiate particles
        Instantiate(RespawnParticle, CurrentCheckPoint.transform.position, CurrentCheckPoint.transform.rotation);
        //Respawn player at the current check point
        Player.transform.position = new Vector2 (CurrentCheckPoint.transform.position.x, CurrentCheckPoint.transform.position.y);
        Debug.Log("Player Respawned");
    }
}