Accessing a Script from all objects with that script

Questions & Answers
1

I am trying to make my own realistic gravity, and need to access all relavent game objects, but I am having lots of problems

My script is:

public class Gravity : MonoBehaviour

{

	public GameObject[] NewGravObj;
	public float Grav
	// Start is called before the first frame update
	void Start()
	{
		NewGravObj = (Gravity)gameObject.GetComponent(typeof(Gravity));
	}

	// Update is called once per frame
	void Update()
	{
		for (int i = 0; i< NewGravObj.Length; i++){
			if (NewGravObj*.GetComponent("Gravity")!=null)*

  •  	{*

//Gives easy access to the other Gravity Script
_ Gravity GravForce = NewGravObj*.GetComponent(“Gravity”);_
_ f (GravForce.Grav * Mathf.Pow(1.0f - 0.00002f, Vector3.Distance(transform.position, NewGravObj.transform.position)) <= 0.2f) {*_

* }*
* }*
* }*
* }*
}
I am running into problems with my only line in Start(), and when I make the GravForce variable. Does anyone know how to create a list of all GameObjects and call a script from a game object?

2

I don’t really know what you’re trying to attempt in your start method,
You are trying to retrieve a Gravity script from the gameobject the gravity script is attached to.

So a reference to itself? Which is pointless, and then you are trying to put that reference into a GameObject type variable, which obviously it cannot because it is of type Gravity.

You will have to be a bit more specific with which objects you exactly want.
You could do something like: Unity - Scripting API: Object.FindObjectsOfType

NewGravObj = FindObjectsOfType<GameObject>(); //Will return and store all gameobjects in the scene in the NewGravObj array.

Note that FindObjectsOfType is not a very performant method call, and it should not be overdone.

3

You declared NewGravObj as a list of GameObjects, you are trying to assign it as a Gravity component. What you need is FindObjectsOfType, this will return an array of all the objects of that type you want. This question has been answered on here a few times already, it came up when I typed your question into google.

Though I feel like you should study lists a little to get a better handle on them.