Reflection Truth

using UnityEngine; public class Bullet : MonoBehaviour { public float speed; public float destroyTime; Rigidbody2D rb; Vector3 lastVelocity; public float thrust = 1.0f; void Start() { Invoke("DestroyBullet", destroyTime); rb = GetComponent<Rigidbody2D>(); rb.AddForce(transform.right * thrust); } void FixedUpdate() { lastVelocity = rb.velocity; } private void Awake() { rb = GetComponent<Rigidbody2D>(); } private void OnCollisionEnter2D(Collision2D collision) { if (collision.gameObject.CompareTag("ReflectObject") || collision.gameObject.CompareTag("Bullet")) { speed = lastVelocity.magnitude; Vector3 direction = Vector3.Reflect(lastVelocity.normalized, collision.contacts[0].normal); rb.velocity = direction * Mathf.Max(speed, 0f); } if (collision.gameObject.name == "Enemy") { Destroy(collision.gameObject); } if (collision.gameObject.CompareTag("Ground") || collision.gameObject.CompareTag("Enemy") || collision.gameObject.CompareTag("Player")) { DestroyBullet(); } } void DestroyBullet() { Destroy(gameObject); } }