Unity ошибка cs0120

Fairly new to Unity and I’ve been getting through my game with not too many hiccups but I’m stumped on this one.
The error I’m getting is:

Assets/Scripts/Interactables/ButtonMoveObject.cs(25,55): error CS0120: An object reference is required to access non-static member `Inventory.CheckItem(Inventory.items)’

I can’t seem to figure it out, any thoughts?

using UnityEngine;
using System.Collections;

public class ButtonMoveObject : MonoBehaviour {

//Object name to link to button
public GameObject buttonReceiver = null;

//Target for moved objects and time it takes
private Vector3 source;
public Vector3 target;
public float overTime;

//Prerequesites required to operate it
public Inventory.items[] pres;

//Flag to keep checking prerequisites and check count
private bool checkFlag = true;
private int checkCount = 0;

void Use ()
{
    if (pres.Length > 0) {
        while (checkFlag) {
            checkFlag = Inventory.CheckItem(pres[checkCount]);
            if (checkCount == pres.Length) {
                if (checkFlag) {
                    checkFlag = false;
                    StartCoroutine (MoveObject ());
                }
            }
            checkCount++;
        }
    }
}

IEnumerator MoveObject()
{
    source = buttonReceiver.transform.position;
    float startTime = Time.time;
    while(Time.time < startTime + overTime)
    {
        buttonReceiver.transform.position = Vector3.Lerp(source, target, (Time.time - startTime)/overTime);
        yield return null;
    }
    buttonReceiver.transform.position = target;
}

}

EDIT:

Okay I’ve fixed it with checkFlag = player.GetComponent<Inventory>().CheckItem(pres[checkCount]);
but now I’m getting an error Assets/Scripts/Player/Inventory.cs(21,30): error CS0176: Static member Inventory.items.keycardGreen' cannot be accessed with an instance reference, qualify it with a type name instead

in my Inventory script

using UnityEngine;
using System.Collections;

public class Inventory : MonoBehaviour {

public enum items
{
    keycardGreen,
    keycardRed
};

//Inventory List
[HideInInspector]
public bool keycardGreen = false;
[HideInInspector]
public bool keycardRed = false;

public void CollectItem (items newItem)
{
    switch (newItem) {
    case newItem.keycardGreen:
        keycardGreen = true;
        Debug.Log(newItem + " collected.");
        break;
    case newItem.keycardRed:
        keycardRed = true;
        Debug.Log(newItem + " collected.");
        break;
    default:
        break;
    }
}

public bool CheckItem (items checkItem)
{
    switch (checkItem) {
    case checkItem.keycardGreen:
        return keycardGreen;
        break;
    case checkItem.keycardRed:
        return keycardRed;
        break;
    default:
        Debug.Log("Item does not exist.");
        break;
    }
}
}

Because you’re working with Unity, you need to follow the requirements of the engine.

In a case like this, where you need an instance of a component (MonoBehaviour), you really want to be referencing a Unity created instance, instead of creating a new one with the new keyword. Creating an instance of a component using the new keyword is going to leave you with an instance of the class that’s not associated with any Unity GameObject.

The far more reliant way to get the component you want to reference, is to use the Inspector window, and drag into the object field, the right component on the desired object. In this case, I am going to assume you’ll want to drag a Scene object (in your hierarchy) into the object field slot.

You would do that by first defining a variable. This can generally be done in one of two ways:

1. public Zoney zoney;
2. [SerializeField] private Zoney zoney;

In this example, once you’ve assigned your reference, use the variable zoney, instead of the class name Zoney. Note that your variable name could be anything else you feel is appropriate, e.g. _zoney, or myZoney.

Your new Shop script could then look like this:

    public class Shop : MonoBehaviour
    {
        public int Change;
        public Zoney zoney;
    
        void Update()
        {
          Change += 1;
          zoney.setMonney(Change);
          Debug.Log(Change);
        }
    }

Go to Unity3D

error CS0120: An object reference is required for the non-static field, method, or property

Solved