CODEWITHSUNDEEP
c#unity-game-engine
Mattattack
Mattattack

Reputation: 189

Unity access collider as public variable on different gameobject

I create instances of a prefab, (which is two rectangles with a gap in the middle), and if the player sprite collides with the collider in the gap, the score will increase.

I have a boxCollider2D on a prefab object, and want this collider as a public variable on a separate sprite, so I can access it on my script on the sprite.

So currently, col, is the collider the sprite is interacting with which is:

barrier(Clone) (UnityEngine.BoxCollider2D))

and my colliderBox is:

barrier (UnityEngine.BoxCollider2D)

So the only difference is one is from the prefab, and one is from the the objected created using the prefab.

void OnTriggerEnter2D(Collider2D col){

    if (col.CompareTag ("barrier") && col != colliderBox) {
        Debug.Log (col);
        Debug.Log (colliderBox);
        SceneManager.LoadScene (mainMenu);
    }


}

Upvotes: 0

Views: 2581

Answers (1)

Lotan
Lotan

Reputation: 4283

If I get it, you want to have your collider as a public variable, try something like: 

public class PrefabObject: MonoBehaviour {

        public BoxCollider2D boxCollider;

        private void Start()
        {
            this.boxCollider = this.GetComponent<BoxCollider2D>();
        }
    }

    public class OtherObject: MonoBehaviour {

                public PrefabObject prefabObject;
                private BoxCollider2D boxCollider;
                private void Start()
                {
                    this.boxCollider = prefabObject.boxCollider;
                    //or also this.boxCollider = prefabObject.GetComponent<BoxCollider2D>(); 
                }
            }

If there is no PrefabObject script attached to the GameObject that have the boxCollider2D, and only have the collider component attached, the OtherObject will be like:

public class OtherObject: MonoBehaviour {

                public GameObject prefabObject; //Here is the change!
                private BoxCollider2D boxCollider;
                private void Start()
                {
                    this.boxCollider = prefabObject.GetComponent<BoxCollider2D>();
                }
            }

Upvotes: 2

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