gistfile1.txt

        protected override void OnUpdate()
        {
            var collisionEvents = _collisionEvents;
            var detectors = _buffer;
            detectors.Clear();

            Entities.ForEach((Entity entity, ref CollisionDetector detector, in Translation pos, in OwnerRef owner) =>
            {
                detectors.Add(new DetectorInfo
                {
                    Entity = entity,
                    Position = pos.Value,
                    Range = detector.Range,
                    Owner = owner
                });

            }).Run();

            Entities.WithNone<CollisionDetector>().ForEach((Entity entity, ref ActorDefinition def, ref Translation pos) =>
            {
                for (int i = 0; i < detectors.Length; i++)
                {
                    var detector = detectors[i];
                    var distance = math.distance(detector.Position, pos.Value);
                    if (distance < detector.Range)
                    {
                        collisionEvents.Enqueue(new CollisionEvent
                        {
                            Source = detector,
                            Hit = new Hit
                            {
                                Position = detector.Position + (pos.Value - detector.Position),
                                Target = entity
                            },
                        });
                    }
                }

            }).WithReadOnly(detectors).WithoutBurst().Run();
        }