Enable a hit object to identify its origin by implementing an explicit communication mechanism.

1. Define your interface with a method that accepts a GameObject reference (e.g., OnRaycastHitBy(GameObject **sender**)).
2. Implement your interface on scripts attached to potential hit targets.
3. Execute Physics.Raycast from your script to detect collision targets.
4. Use TryGetComponent to retrieve your interface component from the hit GameObject.
5. If the component exists, invoke the OnRaycastHitBy method while passing this.gameObject as the sender.

Establishing this direct reference allows the hit target to react dynamically to the raycast sender without performing expensive searches or broad-phase queries.

Additional Tips

• Use LayerMask to improve performance by restricting raycast checks to specific layers.
• Cache your script references to reduce overhead in frequently called Update methods.
• Use Debug.DrawRay to visually debug the sender origin and ray path in the Scene view.