Assets\scripts\floating.cs(20, 18): error CS0120: an object reference is required for the non-static field, method, or property 'oceane.ocean'

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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering.HighDefinition;

public class Floating : MonoBehaviour
{
    public Rigidbody rb;
    public float depthBefSub;
    public float displacementAnt;
    public int floaters;
    public float waterOrag;
    public float waterAngularOrag;
    public WaterSurface water;
    WaterSearchParameters Search;
    WaterSearchResult SearchResult;

    private void FixedUpdate()
    {
        water += OceanE.Ocean;

        rb.AddForceAtPosition(Physics.gravity / floaters, transform.position, ForceMode.Acceleration);

        Search.startPosition = transform.position;

        water.FindWaterSurfaceHeight(Search, out SearchResult);

        if (transform.position.y < SearchResult.height)
        {
            float displacementMulti = Mathf.Clamp01(SearchResult.height - transform.position.y / depthBefSub) * displacementAnt;
            rb.AddForceAtPosition(new Vector3(0f, Mathf.Abs(Physics.gravity.y) * displacementMulti, 0f), transform.position, ForceMode.Acceleration);
            rb.AddForce(displacementMulti * -rb.velocity * waterOrag * Time.fixedDeltaTime, ForceMode.VelocityChange);
            rb.AddForce(displacementMulti * -rb.angularVelocity * waterAngularOrag * Time.fixedDeltaTime, ForceMode.VelocityChange);
        }
    }
}

What I have tried:

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

public class OceanE : MonoBehaviour
{
    public GameObject Ocean;
}

Posted 2-Jul-23 13:11pm

Eric Taylor 2023

Updated 2-Jul-23 19:21pm

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2 solutions

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Graeme_Grant · Answer 1 · 2023-07-02T15:43:00

I don't do Unity, however, that error in C# usually means that you have not initialised the class before using it. Somewhere in your code you need to create a reference:

C#

private OceanE oceanE;

and then initialise it:

C#

OceanE = new oceanE();

Same with inner objects:

C#

public class OceanE : MonoBehaviour
{
    public GameObject Ocean = new GameObject();
}

Once initialised, then you can work with it...

Not sure what this line is doing though:

C#

water += OceanE.Ocean;

Maybe, the GameObject overrides the operator + for objects... you can read more about it here: Operator overloading - Define unary, arithmetic, equality, and comparison operators. | Microsoft Learn[^]

Sandeep Mewara · Answer 2 · 2023-07-02T19:21:00

As error shares, you are calling a non-static item as a static. You can solve this by:
Option 1:
Have OceanE as static class such that you can directly access it's properties. This depends on the design choice.

Option 2:
Initialize OceanE before using it's properties. (As shared by GraemeG above). You mentioned in what you tried about declaring the variable but you also need to initialize it.

C#

public GameObject Ocean; //Access modifier as per need

// later before using the object, initialize it, like:
OceanE o = new OceanE();
water += o.Ocean;

Details of this error with multiple examples: Compiler Error CS0120 | Microsoft Learn[^]

Assets\scripts\floating.cs(20, 18): error CS0120: an object reference is required for the non-static field, method, or property 'oceane.ocean'

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Assets\scripts\floating.cs(20, 18): error CS0120: an object reference is required for the non-static field, method, or property 'oceane.ocean'

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