Playing audio on collision

Question

Hi im trying to play an audio clip when anything collides with my death zone area, i have the audio source on the death zone object and this script attached.

public class SawSoundController : MonoBehaviour { AudioSource saw;

 void Start ()
 {
     saw = GameObject.FindObjectOfType<AudioSource>();
 }
 
 void Update ()
 {

 }

 void OnCollisionEnter(Collision col)
 {
     if(col.gameObject)
     {
         saw.Play();
         Debug.Log("Nurrrr");
     }
 }

}

i've tried this a few different ways and nothings working, what am i doing wrong ?

Answer 1

Best Answer

Answer by JEFFDOG11111 · Mar 23, 2016 at 03:41 PM

 using UnityEngine;
 using System.Collections;
 
  //Add this Script Directly to The Death Zone
 public class SawSoundController : MonoBehaviour
 {
     public AudioClip saw;    // Add your Audi Clip Here;

     // This Will Configure the  AudioSource Component; 
     // MAke Sure You added AudioSouce to death Zone;
     void Start ()   
     {
         GetComponent<AudioSource> ().playOnAwake = false;
         GetComponent<AudioSource> ().clip = saw;
     }        
 
     void OnCollisionEnter ()  //Plays Sound Whenever collision detected
     {
         GetComponent<AudioSource> ().Play ();
     }
          // Make sure that deathzone has a collider, box, or mesh.. ect..,
          // Make sure to turn "off" collider trigger for your deathzone Area;
          // Make sure That anything that collides into deathzone, is rigidbody;
 }

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JEFFDOG11111 · Mar 23, 2016 at 03:06 PM 0

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@Bman262 > tag

Bman262 JEFFDOG11111 · Mar 23, 2016 at 05:04 PM 0

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Thank you, it was the trigger on the DeathZone :D, bit of a nooby mistake ;)

EstebanFernandez JEFFDOG11111 · Jul 01, 2020 at 03:08 PM 0

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Do you hear the "Is Trigger" should be activated? What happens is that I want that when picking up a ring like those of Sonic the Hedgehog the sound sounds the rest to add it to the contandor I already have it done in that case tell me if it should be activated and if not, tell me if there is any other alternative please

wichmannoa · Nov 30, 2017 at 05:49 PM 0

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for those of you out there working on 2D line 17 should read "void OnTriggerEnter2D () {

Thanks for this JEFFDOG11111 it helped me a lot.

Clover10123 · Jan 14, 2018 at 08:37 PM 0

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$$anonymous$$y script writer says AudioClip can't implicitly convert into AudioSource... so is it important to use one or the other? Do they do different things, and if so, what?

Crystalkalem · May 17, 2020 at 06:57 AM 0

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I am a complete newb and have no idea where I'm meant to place the name of the audio file.... do I replace the word Saw? do I put the word after the ; ??? I have no idea. I've been at this for hours feeling dumber and dumber as nothing works no matter how I change the placements.

Answer 2

Answer by KdRWaylander · Mar 23, 2016 at 03:56 PM

Hi,

col.gameObject is not a boolean, it's a GameObject type, it has nothing to do in your if statement.

If you do want ANYTHING going through your collider to trigger the sound, you can get rid of the if statement: whenever OnCollisionEnter is called, it plays the sound.

If you want to filter the gameobjects being able to trigger the sound, you'll need the if statement but with a boolean. Here's a possible condition that fits: col.gameObject.tag == "SomeString".

Now make sure that both objects (the one carrying the script and the one that has to trigger the sound) have colliders and that at least one of the two objects has a RigidBody.

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b1naryatr0phy · Apr 20, 2017 at 08:21 AM 1

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"col.gameObject is not a boolean, it's a GameObject type, it has nothing to do in your if statement"

You're wrong, I'm afraid. His usage is both acceptable and quite common. In this context, the if-statement will return false if GameObject is null.

ransomink · Jan 14, 2018 at 09:05 PM 0

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As stated above, if ( col.gameObject ) is totally fine; It checks if the gameobject is null.

On another note, do not use

 col.gameObject.tag == "SomeString"

ins$$anonymous$$d do:

 col.gameObject.CompareTag("SomeString")

Answer 3

Answer by Maggiethegsd · Jul 01, 2020 at 03:57 PM

First, make sure that your audio doesn't play on Start by unchecking 'Play on Awake'. Second, make sure that the collider in your audio trigger is set to Is Trigger. Other audio options such as 'loop' are your choice.

@Bman262

I'm saying here that the script is attached to the object through which the sound plays (lets say a ball, whenever the player touches it, sound plays) I like to create a reference and then in the editor, 'drag and drop' my Audio Source inside the 'yourAudio' blank

using UnityEngine; using UnityEngine.Audio; class Script : MonoBehaviour { public AudioSource yourAudio; void OnTriggerEnter(Collider player)

{ if (player.transform.CompareTag("Player") { yourAudio.Play(); } } } }

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Answer 4

Answer by Zeesy · Jul 29, 2020 at 08:35 PM

Very simple tutorial here, works in v 2020.1: https://asyncaudio.com/blogs/tutorials/how-to-create-a-simple-audio-impact-collision-trigger-with-unity

The code they provide is:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class ImpactTrigger : MonoBehaviour
 {
     AudioSource source;
 
     void Start()
     {
         source = GetComponent<AudioSource>();
     }
 
     private void OnCollisionEnter(Collision collision)
     {
         source.Play();
     }
 
 }

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Playing audio on collision

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