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Question by Weightless · Feb 03, 2020 at 03:58 PM · c#reflectionballbounce

Balls bounce off wall in different ways

I'm trying to make a game similar to Tank Trouble where if the player shoots a bullet, it will bounce off the wall, just like in this image: alt text

I achieved this with the following code:

 float speed = 3.8f;
 
 void Awake()
 {
     this.gameObject.GetComponent<Rigidbody>().velocity = transform.forward * speed;
 }
 
 private void Update()
 {
     this.gameObject.GetComponent<Rigidbody>().velocity = transform.forward * speed;
 }
 
 
 private void OnCollisionEnter(Collision collision)
 {
     if (collision.collider.tag == "Wall")
     {
         print("coll norm: " + collision.GetContact(0).normal);
         Vector3 v = Vector3.Reflect(bullet.transform.forward, collision.GetContact(0).normal);
         bullet.transform.rotation = Quaternion.FromToRotation(Vector3.forward, v);
     }
 }

However sometimes when I shoot 5 bullets for example, some of them will take a different path after a bounce than others. The problem is obviously is with the way I make them bounce, but then I don't see why they bounce in different ways. I should probably mention that the balls can not collide with eachother because their layer collision is disabled.

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Answer by mudassirrazi · Feb 03, 2020 at 04:20 PM

You don't need script for this.Add a physical material to the wall with 0 friction and Bounce 1.Should work.

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avatar image Weightless · Feb 03, 2020 at 04:54 PM 0
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If i do this, and move the balls with AddForce, the balls sometimes slide along the wall ins$$anonymous$$d of bouncing.

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