OnCollisionEnter not triggered

Questions & Answers
1

So first: I’m fairly new to Unity, so bear with me.

I have a scene that contains 4 walls and dynamically generates objects within based on JSON. The walls all have box colliders and a script which contains

void OnCollisionEnter(Collision col)
        {
            Debug.Log("Collision ");
            if (col.gameObject.tag == "Road")
            {
                Debug.Log("with Road");
            }
        }

The “roads” are generated and within an Initialize function I add a Box Collider:

BoxCollider collider = roadPlane.GetComponent<BoxCollider>();
                collider.size = new Vector3(10f, 0.1f, 10f);

When playing the scene, I can definitely see the colliders from the wall and road intersecting, but the OnCollisionEnter function doesn’t appear to execute.

Any help is greatly appreciated. Thanks in advance!

2

Problem resolved - I added a RigidBody to the walls. It was that simple.