Unity: Gameobjects with tag, Reset to start location/position

Question

I have about 6 GameObjects with Tag (Model) after Move, Scale, Rotate how can I reset them back to start location when I click a button.

I am using Vuforia and Unity.

Any help would be appreciated, Thanks.

Answer 1

I have about 6 GameObjects with Tag (Model)

Find them all and store them into array.

GameObject[] models = GameObject.FindGameObjectsWithTag("Model");

Move, Scale, Rotate how can I reset them back to start location when I click a button.

Get the position(Vector3), scale(Vector3) and rotation(Quaternion) in the Start() function, with a for loop and store their values to temporary variables. When the Button is clicked, call a function that sets the models position, scale and rotation to those values.

To call a function on a Button click, you can do that from the Editor or from Script. ButtonInstance.onClick.AddListener(() => yourFunctionToCall());

I am a Unity newbie

Nothing complicated here.

GameObject.FindGameObjectsWithTag

C# arrays.

GetComponent

Vector3

Quaternion

Unity Tutorials for beginners

Vector3[] defaultPos;
Vector3[] defaultScale;
Quaternion[] defaultRot;

Transform[] models;

//Attach Button from the Editor
public Button resetButton;

void Start()
{
    //Call to back up the Transform before moving, scaling or rotating the GameObject
    backUpTransform();
}

void backUpTransform()
{
    //Find GameObjects with Model tag
    GameObject[] tempModels = GameObject.FindGameObjectsWithTag("Model");

    //Create pos, scale and rot, Transform array size based on sixe of Objects found
    defaultPos = new Vector3[tempModels.Length];
    defaultScale = new Vector3[tempModels.Length];
    defaultRot = new Quaternion[tempModels.Length];

    models = new Transform[tempModels.Length];

    //Get original the pos, scale and rot of each Object on the transform
    for (int i = 0; i < tempModels.Length; i++)
    {
        models[i] = tempModels[i].GetComponent<Transform>();

        defaultPos[i] = models[i].position;
        defaultScale[i] = models[i].localScale;
        defaultRot[i] = models[i].rotation;
    }
}

//Called when Button is clicked
void resetTransform()
{
    //Restore the all the original pos, scale and rot  of each GameOBject
    for (int i = 0; i < models.Length; i++)
    {
        models[i].position = defaultPos[i];
        models[i].localScale = defaultScale[i];
        models[i].rotation = defaultRot[i];
    }
}


void OnEnable()
{
    //Register Button Events
    resetButton.onClick.AddListener(() => resetTransform());

}


void OnDisable()
{
    //Un-Register Button Events
    resetButton.onClick.RemoveAllListeners();
}