collisionEvent.position returning (0,0,0)

Question

Created Dec ’23

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I'm detecting collision between two entities. I'm trying to get the collision position by using .position. The collision code is below

var body: some View {
        RealityView() {content in
            content.add(fingerModel.setupContentEntity())
            mainSphere = fingerModel.addSphere()
            
            //collision detection
            subscription = content.subscribe(to: CollisionEvents.Began.self, on: mainSphere) {
                collisionEvent in
                print("Collision started between \(collisionEvent.entityA.name) and \(collisionEvent.entityB.name)")
                
                if let componentB = collisionEvent.entityB.components[FingerCollideComponent.self] {
                    print("Found finger collision component on \(collisionEvent.entityB.name) with tag \(componentB.tag)")
                    
                    if componentB.tag == CollisionTag.postIt  {
                        onPostItCollide(postItEntity : componentB.pivotEntity)
                    }
                    
                    if componentB.tag == CollisionTag.wall {
                        print("Collision position is \(collisionEvent.position)")
                        onWallCollide(contactPoint : collisionEvent.position)
                    }
                }
            }
            
        }
        .gesture(sphereDragGesture())
    }

The collision detection is working fine. However, the collision.position is showing that it's coming out to (0,0,0). Is this a problem anyone else has?

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Answer 1

sharramon OP

Dec ’23

I solved this too. The problem is that I was misunderstanding how the mode: .trigger worked with the collision shape. I thought it was a way to passthrough objects like in unity. However, it just discards information about the collisions instead to make it performant. Just getting rid of this worked!

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