Bearded Multi-Headed Instantiation Dragoon Question

Question

If I wanted to: (sorry for the complicated question)

instantiate a sphere prefab with a name, a random position, and a random size
instantiate a button for it on a scroll view
on click of set button, make my only camera look at the sphere prefab I just instantiated
while also on click, travel to the instantiated sphere prefab
and end up at the same transform of the previous object,relative to the new one

I have conquered instantiating the sphere prefab with its random specifications. I can currently add a button prefab with the same sphere prefab name to an existing scroll view by the use of a list, a sphere prefab class, and a button prefab class. I would like to add a generic function to satisfy requirement 3, 4, and 5 in my button prefab onClick so it is linked to the new sphere prefab I have just instantiated. To make this all the more complicated I am instantiating 1000 of these sphere prefabs in a 3D environment at run time.

 public GameObject mainCamera;
 public float transitionSpeed;
 public float startTime = 1.0f;
 
 //the newSphere is the instantiated sphere prefab
 public void SphereButtonClick(GameObject newSphere)
     {
         Transform newSphereTrans = newSphere.transform;
         Vector3 sphereToZoomToPos = newSphereTrans.position;
         float sphereToZoomToX = sphereToZoomToPos.x;
         float sphereToZoomToY = sphereToZoomToPos.y;
         float sphereoZoomToZ = sphereToZoomToPos.z;
 
         Transform mainCameraTrans = mainCamera.transform;
         mainCameraTrans.SetParent(newSphereTrans);
         mainCameraTrans.LookAt(newSphereTrans);
         float lerpXValue = Mathf.Lerp(0, sphereToZoomToX, (Time.time - startTime) * transitionSpeed);
         float lerpYValue = Mathf.Lerp(0, sphereToZoomToY, (Time.time - startTime) * transitionSpeed);
         float lerpZValue = Mathf.Lerp(0, sphereToZoomToZ, (Time.time - startTime) * transitionSpeed);
         mainCameraTrans.position = new Vector3(lerpXValue, lerpYValue, lerpZValue);
     }

This is my camera movement function but I can't get it to work. I have attempted to slide it into the onClick of the button prefab as both a separate class and as a part of another but when I bring up the class the function does not exist. Is my function for onClick not allowed to take in a GameObject? If not, how would I take my instantiated sphere prefab game object (which has its own sphere prefab class) (and is also in a list that displays on the aforementioned scroll view) and link it to the main camera through an also instantiated button onClick?

My Sphere Prefab Class:

 public class SpherePrefab : MonoBehaviour
 {
     public GameObject sphereInScene;
     public Text SphereName;
 }

And my Button prefab Class:

 public class ButtonPrefab : MonoBehaviour {
 
     public Button button;
     public Text sphereName;
 
 }

Answer 1

First of all we can start with SphereFactory (singleton): public void SphereFactory: MonoBehaviour { public event Action SphereCreatedListeners;

     public void CreateNew()
     {
         //Create Vector3 random position
         //Create Vector3 random size
         var newObject = Instantiate(prefab, position);
         newObject.transform.localScale = randomScale;
         
         SphereCreatedListeners?.Invoke(newObject); //Assuming you are using C# 6.0
     }
 }

Next, we can create ButtonFactory (singleton):

 public void ButtonFactory: MonoBehaviour
 {
     public event Action<GameObject> SphereClickedListeners;
     
     void Start()
     {
         SphereFactory.Instance.SphereCreatedListeners += OnSphereCreated;
     }
     
     private void OnSphereCreated(GameObject sphere)
     {
         var newButton = Instantiate(prefab, gridLayout);
         newButton.onClick.AddListener(() => SphereAction(sphere));
     }
     
     private void SphereAction(GameObject sphere)
     {
         SphereClickedListeners?.Invoke(sphere); //C# 6.0
     }
     
     void OnDestroy()
     {
         SphereFactory.Instance.SphereCreatedListeners -= OnSphereCreated;
     }
 }

Finally CameraController basend on your code:

 public void CameraController: MonoBehaviour
 {
     private Transform target;
     
     void Start()
     {
         ButtonFactory.Instance.SphereClickedListeners += OnSphereClicked;
     }
     
     private void OnSphereClicked(GameObject sphere)
     {
         target = sphere.transform;
     }
     
     private void NavigateTo(GameObject target)
     {
         Vector3 sphereToZoomToPos = target.position;
         float sphereToZoomToX = sphereToZoomToPos.x;
         float sphereToZoomToY = sphereToZoomToPos.y;
         float sphereoZoomToZ = sphereToZoomToPos.z;
 
         Transform mainCameraTrans = mainCamera.transform;
         mainCameraTrans.SetParent(newSphereTrans);
         mainCameraTrans.LookAt(newSphereTrans);
         float lerpXValue = Mathf.Lerp(0, sphereToZoomToX, (Time.time - startTime) * transitionSpeed * time.deltaTime);
         float lerpYValue = Mathf.Lerp(0, sphereToZoomToY, (Time.time - startTime) * transitionSpeed * time.deltaTime);
         float lerpZValue = Mathf.Lerp(0, sphereToZoomToZ, (Time.time - startTime) * transitionSpeed * time.deltaTime);
         mainCameraTrans.position = new Vector3(lerpXValue, lerpYValue, lerpZValue);
     }
     
     void Update()
     {
         if(target == null) return;
         
         NavigateTo(target);
     
         if(HasArrived())
         {
             target = null;
         }
     }
     
     private bool HasArrived()
     {
         return target != null && (target.position - mainCamera.position).magnitude <= 0.1f;
     }
     
     void OnDestroy()
     {
         ButtonFactory.Instance.SphereClickedListeners -= OnSphereClicked;
     }
 }

I have missed some fields, methods and basic singleton pattern, but I hope you get the point :) I don't like idea of having sphere action in button factory (it should be defined in sphere script, like OnButtonClickAction).

Bearded Multi-Headed Instantiation Dragoon Question

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