So I'm trying to clone gameobjects however I keep getting the following error:

BoxDuplication.cs(18,60): error CS1503: Argument 2: cannot convert from 'UnityEngine.Vector2' to 'UnityEngine.Transform'

Here is my code:

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

public class BoxDuplication : MonoBehaviour
{
    public GameObject boxOriginal;

    void Start()
    {
        CreateBox(3);
    }

    void CreateBox(int boxNum)
    {
        for (int i = 0; i < boxNum; i   )
        {
            GameObject boxClone = Instantiate(boxOriginal, new Vector2(boxOriginal.transform.position.x, i));
        }
    }
}

I've tried putting instantiate standalone with set co-ordinates:

GameObject boxClone = Instantiate(boxOriginal, new Vector2(1, 1));

but this doesn't work either so there's something wrong with my method

I've tried to figure out what I'm doing wrong by looking through videos and other stack-overflow posts but due to not really knowing much c# I'm at a loss. There are a few similar posts like this but I don't think they answer my problem. If they do, then I guess I don't understand the concept.

Thanks, Any help is much appreciated!

CodePudding user response：

From the Unity Docs, the Instantiate Decelerations are:

1. public static Object Instantiate(Object original);

2. public static Object Instantiate(Object original, Transform parent);

3. public static Object Instantiate(Object original, Transform parent, bool instantiateInWorldSpace);

4. public static Object Instantiate(Object original, Vector3 position, Quaternion rotation);

5. public static Object Instantiate(Object original, Vector3 position, Quaternion rotation, Transform parent);

So in your case, the Instantiate method expects a parent Transform. You will have to include the rotation and parent as well.

So your line becomes:

GameObject boxClone = Instantiate(boxOriginal, new Vector2(1, 1), Quaternion.identity, transform);

EDIT:

The transform is used as a parent. It can be omitted as needed. It is always a good idea to spawn objects as a child. To make a hierarchy clean.

CodePudding user response：

Your issue is that you are not setting the rotation of the new GameObject. If you want to use Instantiate(boxOriginal, transform) that would set it as a child of the object that your script is attached to. That would work, you would just need to add boxClone.transform.position = Vector3(1,1); to move it to the desired position. Note boxClone.transform.localPosition may be what you want instead.

If you use GameObject boxClone = Instantiate(boxOriginal, new Vector2(1, 1), Quaternion.identity); then you should have no issues.