Public funktion cant be called (CS1061)

Questions & Answers
,
1

I try to make my frist game in Unity (checkers) but i ran into a problem i dont unterstand

var spawnedStone = Instantiate(_stonePrefab, new Vector3(x, y, -1), Quaternion.identity);
spawnedStone.name = $"Stone {stone}";

if (y <= 2) _iswhite = true;
else _iswhite = false;
spawnedStone.Init(_iswhite);
stone++;

public class Stone : MonoBehaviour
{
    [SerializeField] private Color _black, _white;
    [SerializeField] private SpriteRenderer _spriteRenderer;
    public void Init(bool _iswhite)
    { 
        _spriteRenderer.color = _iswhite ? _white : _black;
    }
}

I am trying to call my Init method of my checkers stone but it does not work somehow but it worked with my tiles for the board

var spawnedTile = Instantiate(_tilePrefab, new Vector3(x, y, 0), Quaternion.identity);
spawnedTile.name = $"Tile {x} {y}";

var _isOffset = (x+y) % 2 == 1;
spawnedTile.Init(_isOffset);

public class Tile : MonoBehaviour
{
    [SerializeField] private Color _baseColor, _offsetColor;
    [SerializeField] private SpriteRenderer _renderer;
    [SerializeField] private GameObject _highlight;
    public void Init(bool isOffset) 
    {
        _renderer.color = isOffset ? _offsetColor : _baseColor;
    }

anyone knows why ?
this is the error

image
image2095×429 54.7 KB

Thx in advance

2

Hi @tosendeelemente,

Could you post the exception as text please so I can run translate and see what the exception is.

From the looks of things there are a couple things that could be happening;

  1. Your _stonePrefab is a GameObject, therefore you’re not able to call functions of the Stone class.
  2. Using the var keyword has confused the compiler believing that the Stone script is a GameObject → its good practice to infer the type explicitly.

Try this:

var spawnedStone = Instantiate(_stonePrefab, new Vector3(x, y, -1), Quaternion.identity);
                    spawnedStone.name = $"Stone {stone}";

                    if (y <= 2) _iswhite = true;
                    else _iswhite = false;
                    spawnedStone.GetComponent<Stone>().Init(_iswhite);
                    stone++;

If that works, it’s because you’re not Instantiating your _stonePrefab as a Stone Object but you’re trying to access the method as if it is.

In order to Instantiate as a Stone Object, you need to do the following:

  1. Create a GameObject and add the Stone script as a component.
  2. Change your _stonePrefab to be of Type Stone
public Stone _stonePrefab
  1. Code should be as follows
Stone spawnedStone = Instantiate(_stonePrefab, new Vector3(x, y, -1), Quaternion.identity);
                    spawnedStone.name = $"Stone {stone}";

                    if (y <= 2) _iswhite = true;
                    else _iswhite = false;
                    spawnedStone.Init(_iswhite);
                    stone++;

Hope that helps!