Added things

Assets/Arts/Hovl Studio/Toon Projectiles 2/Scripts/AutoDestroyPS.cs

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+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+
+//This code destroys the particle's GameObject once it's Start Time is over.
+public class AutoDestroyPS : MonoBehaviour
+{
+    private float timeLeft;
+
+    private void Awake()
+    {
+        ParticleSystem system = GetComponent<ParticleSystem>();
+        var main = system.main;
+        timeLeft = main.startLifetimeMultiplier + main.duration;
+        Destroy(gameObject, timeLeft);
+    }
+
+    /*--------------------------bad variant------------------------
+    public void Awake()
+    {
+        ParticleSystem system = GetComponent<ParticleSystem>();
+        var main = system.main;
+        timeLeft = main.startLifetimeMultiplier + main.duration;
+        //Destroy(gameObject, main.startLifetimeMultiplier + main.duration);
+    }
+    public void Update()
+    {
+        timeLeft -= Time.deltaTime;
+        if (timeLeft <= 0)
+        {
+            GameObject.Destroy(gameObject);
+        }
+    }
+    -----------------------------------------------------------*/
+}

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Assets/Arts/Hovl Studio/Toon Projectiles 2/Scripts/ProjectileMover.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class ProjectileMover : MonoBehaviour
+{
+    public float speed = 15f;
+    public float hitOffset = 0f;
+    public bool UseFirePointRotation;
+    public Vector3 rotationOffset = new Vector3(0, 0, 0);
+    public GameObject hit;
+    public GameObject flash;
+    private Rigidbody rb;
+    public GameObject[] Detached;
+
+    void Start()
+    {
+        rb = GetComponent<Rigidbody>();
+        if (flash != null)
+        {
+            var flashInstance = Instantiate(flash, transform.position, Quaternion.identity);
+            flashInstance.transform.forward = gameObject.transform.forward;
+            var flashPs = flashInstance.GetComponent<ParticleSystem>();
+            if (flashPs != null)
+            {
+                Destroy(flashInstance, flashPs.main.duration);
+            }
+            else
+            {
+                var flashPsParts = flashInstance.transform.GetChild(0).GetComponent<ParticleSystem>();
+                Destroy(flashInstance, flashPsParts.main.duration);
+            }
+        }
+        Destroy(gameObject,5);
+	}
+
+    void FixedUpdate ()
+    {
+		if (speed != 0)
+        {
+            rb.velocity = transform.forward * speed;
+            //transform.position += transform.forward * (speed * Time.deltaTime);         
+        }
+	}
+
+    //https ://docs.unity3d.com/ScriptReference/Rigidbody.OnCollisionEnter.html
+    void OnCollisionEnter(Collision collision)
+    {
+        //Lock all axes movement and rotation
+        rb.constraints = RigidbodyConstraints.FreezeAll;
+        speed = 0;
+
+        ContactPoint contact = collision.contacts[0];
+        Quaternion rot = Quaternion.FromToRotation(Vector3.up, contact.normal);
+        Vector3 pos = contact.point + contact.normal * hitOffset;
+
+        if (hit != null)
+        {
+            var hitInstance = Instantiate(hit, pos, rot);
+            if (UseFirePointRotation) { hitInstance.transform.rotation = gameObject.transform.rotation * Quaternion.Euler(0, 180f, 0); }
+            else if (rotationOffset != Vector3.zero) { hitInstance.transform.rotation = Quaternion.Euler(rotationOffset); }
+            else { hitInstance.transform.LookAt(contact.point + contact.normal); }
+
+            var hitPs = hitInstance.GetComponent<ParticleSystem>();
+            if (hitPs != null)
+            {
+                Destroy(hitInstance, hitPs.main.duration);
+            }
+            else
+            {
+                var hitPsParts = hitInstance.transform.GetChild(0).GetComponent<ParticleSystem>();
+                Destroy(hitInstance, hitPsParts.main.duration);
+            }
+        }
+        foreach (var detachedPrefab in Detached)
+        {
+            if (detachedPrefab != null)
+            {
+                detachedPrefab.transform.parent = null;
+            }
+        }
+        Destroy(gameObject);
+    }
+}

Assets/Arts/Hovl Studio/Toon Projectiles 2/Scripts/ProjectileMover.cs.meta

@@ -0,0 +1,11 @@
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