ColliderRaycastFilter.cs

	[RequireComponent(typeof(Collider2D))]
  public sealed class ColliderRaycastFilter : MonoBehaviour, ICanvasRaycastFilter {
		Collider2D _collider;

		void Start() {
			_collider = GetComponent<Collider2D>();
		}

		public bool IsRaycastLocationValid(Vector2 sp, Camera eventCamera) {
			return _collider && _collider.OverlapPoint(eventCamera.ScreenToWorldPoint(sp));
		}
	}