How to detect a collision inside another method?

Hello!

I'm quite new to Unity and C# and I cannot workout how to achieve the following:

I have a method that detects when the player gets close to an object (fuel pickup), when the player fly's within a certain distance of the object the object moves up towards the player. If the object hits the player I want to detect the collision and destroy the object.

As far as I know you cannot call onCollisionEnter from inside another method so i have no idea how to do this.

Here's my fuel pickup code:

Code (CSharp):

1.  private void BarrelPickup()
2.     {
3.         if (Vector3.Distance(fuelBarrel.transform.position, this.gameObject.transform.position) < 10.0f)
4.         {
5.             fuelBarrel.GetComponent<Rigidbody>().useGravity = false;
6.             fuelBarrel.transform.position = Vector3.MoveTowards(fuelBarrel.transform.position, this.gameObject.transform.position, 5 * Time.deltaTime);
7.         }
8.         else
9.         {
10.             fuelBarrel.GetComponent<Rigidbody>().useGravity = true;
11.         }

Thanks in advance!

 

I got it sorted, I added a collision method elsewhere then did a null check at the start of the BarrelPickup method and it works as expected.

 

I think you could put a sphere collider (trigger) on the fuel. Then, cast on yor player "onCollisionEnter", check if it is colliding with the fuel collider, then call inside onCollisionenter the BarrelPickup function