Initial commit

Assets/Materials/Scripts/WallHitParticles.cs

@@ -0,0 +1,42 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class WallHitParticles : MonoBehaviour
+{
+
+    [SerializeField] private GameObject hitParticlesPrefab;
+    [SerializeField] private float minHitSpeed = 2f;
+    [SerializeField] private float destroyDelay = 2f;
+
+    private Rigidbody _rb;
+    private bool _hasHit = false;
+
+    private void Start()
+    {
+        _rb = GetComponent<Rigidbody>();
+    }
+
+    private void OnCollisionEnter(Collision collision)
+    {
+        if (_hasHit)
+            return;
+
+        if (collision.gameObject.CompareTag("Wall") == false)
+            return;
+
+        if (_rb.velocity.magnitude < minHitSpeed)
+            return;
+
+        _hasHit = true;
+
+        Vector3 hitPoint = collision.contacts[0].point;
+        Quaternion hitRotation =
+            Quaternion.LookRotation(collision.contacts[0].normal);
+
+        GameObject particles =
+            Instantiate(hitParticlesPrefab, hitPoint, hitRotation);
+
+        Destroy(particles, destroyDelay);
+    }
+}