items not adding to list

Questions & Answers
1

I’m a complete noob to coding, and I feel like I’m missing a very basic concept, and/or messing up something that should be very simple. here’s the code in question.

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


[System.Serializable]
public class TownEcoHandler : MonoBehaviour
{

    public List<Node> nodes = new List<Node>();

    public void AddToResList(GameObject resNode, string resType)
    {
        GameObject node = resNode ;
        nodes.Add(new Node(resNode, resType));
    }


}

[System.Serializable]
public class Node : MonoBehaviour 
{
    GameObject node;
    int nodeid = 0;
    Vector2 loc;
    string resource;

    public Node(GameObject newNode, string newRes)
    {
        TownEcoHandler tc = GetComponent<TownEcoHandler>();
        node = newNode;
        loc = node.transform.position;
        nodeid = tc.nodes.Count  + 1;
        resource = newRes;
        node.GetComponent<ResNodeHandler>().nodID = nodeid;
    }

}

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

public class ResNodeHandler : TownEcoHandler   {

    
    public string res;
    public GameObject node;
    public TownEcoHandler myTown;
    public int nodID;
    //public Count iron;
    

    

    void Start()
    {
        node = this.gameObject;
        myTown = GetComponentInParent<TownEcoHandler>();
        AddToResList(node, res);
	}

    public void ResourceTick ()
    {

    }
}

You are trying to create a MonoBehaviour using the ‘new’ keyword. This is not allowed. MonoBehaviours can only be added using AddComponent(). Alternatively, your script can inherit from ScriptableObject or no base class at all
UnityEngine.MonoBehaviour:.ctor()
Node:.ctor(GameObject, String) (at Assets/Scripts/Economy/TownEcoHandler.cs:29)
TownEcoHandler:AddToResList(GameObject, String) (at Assets/Scripts/Economy/TownEcoHandler.cs:15)
ResNodeHandler:Start() (at Assets/Scripts/Economy/ResNodeHandler.cs:21)

NullReferenceException
UnityEngine.Component.GetComponent[TownEcoHandler] () (at C:/buildslave/unity/build/artifacts/generated/common/runtime/ComponentBindings.gen.cs:45)
Node…ctor (UnityEngine.GameObject newNode, System.String newRes) (at Assets/Scripts/Economy/TownEcoHandler.cs:31)
TownEcoHandler.AddToResList (UnityEngine.GameObject resNode, System.String resType) (at Assets/Scripts/Economy/TownEcoHandler.cs:15)
ResNodeHandler.Start () (at Assets/Scripts/Economy/ResNodeHandler.cs:21)

instead of getting the node to add to the list, what I get are these errors, and I have no clue what I’m doing wrong, I hate coming to others for help most the time, but apparently my “learn on your own” method isn’t working well with “lists”… I don’t get along well with lists lol.

2

Your node class is derriving from MonoBehaviour, remove : MonoBehaviour from the class definition.

Also the line in the second script should be myTown.AddToResList(node, res);.