How to detect a collision from a prefab bullet

Question

I have a FPS shooter the fires bullets (prefabs). I have a cube that I would like to be able to fire bullets at that I can detect it being shot and will then be destroyed.

I added a GameObject (a cube) called 'Cube'. The OnTrigger is unclicked. I have the following script attached to the Cube Object:

using UnityEngine; using System.Collections;

public class shootCube : MonoBehaviour {

 void OnCollisionEnter (Collision col)
 {
     if(col.gameObject.name == "Cube")
     {
         Debug.Log ("Hit Cube!");
         Destroy(col.gameObject);
     }
     else 
     {

         Debug.Log("Hit something else!");
     }
 }

}

The bulletPrefab is set-up like this: Tag=theBullet Cylinder 001 (Mesh Filter) Meah -> Cylinder001

Animator (checked) Culling Mode= Always Animate

RigidBody: Collision Detection = Discrete

Bullet Hit (script) Script bulletHit

Here is the bulletHit Script:

using UnityEngine; using System.Collections;

public class bulletHit : MonoBehaviour {

 // Use this for initialization
 void Start () {
 
 }
 
 // Update is called once per frame
 void Update () {
 
 }
 void OnCollisionEnter(Collision col)
 {
     Debug.Log ("Bullet hit something!");
 }

}

Answer 1

Answer by VellaDev · Oct 29, 2014 at 01:50 AM

You should use a ray cast for a bullet, because if the object velocity is to fast it won't detect a collision

If you can't do that then turn your collision detection up on the object and slow it down, u can also use OnTrigger if the obj is set to is trigger

Add comment · Show 2 · Share

robertbu · Oct 29, 2014 at 01:51 AM 0

Share

http://wiki.unity3d.com/index.php?title=DontGoThroughThings

IntelDev94 · Oct 29, 2014 at 03:58 AM 0

Share

I tried the first suggestion setting speed to very slow but it didn't seem to detect anything. I changed the script on the Cube to:

using UnityEngine; using System.Collections;

public class shootCube : $$anonymous$$onoBehaviour {

 // Use this for initialization
 void Start () {
     
 }
 
 // Update is called once per frame
 void Update () {
     
 }
 
 void OnCollisionEnter (Collision col)
 {
     if(col.gameObject.name == "bulletPrefab")
     {
         print ("Hit the Cube " + col.gameObject.name);
         Destroy(col.gameObject);
     }
     else 
     {

         print ("Hit Something " + col.gameObject.name);
     }
 }

}

As soon as the game starts I see "Hit Something Terrain". Is there a problem with the this part of the script col.gameObject.name == "bulletPrefab" ? Should I be checking for the name of the bulletPrefab?

Both the Cube and the bulletPrefab are non-kinematic is that O$$anonymous$$?

Thank you.

How to detect a collision from a prefab bullet

1 Reply

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions