Collider + multiple sounds script

Questions & Answers
1

Hi!

I am working on a project that mainly needs to have 4-5 objects, each with a different sound track on them, that will play upon touch (collision) with a first person character walking around.

Since all 5 sounds will be connected to each other (one will be bass, one vocals, one guitar etc.) and they actually need to play synchronized , I need them all to play on awake, but muted. When the character collides with an objects, the sound that is attached to that object can just un-mute.

I am an architect, I designed an amazing geometry and need an interactive way to display it.
I have very very limited coding skills and even after looking at unity documentation, still don’t have an exact idea how the script would work!

Any help would be enormously appreciated!

2

Thanks for the explanation, now I see what you want.

It is actually pretty easy to do this: you just need a script that sets volume to 0 in the beginning, and to 1 (or whatever you would like) when there is a collision with a specific object. For the collision to work, you also need to set up the objects correctly (at least one has to have a rigidbody). For example, your player would have a collider (CapsuleCollider or CharacterController) and a rigidbody (probably set to kinematic), while the sound objects just a collider, like a BoxColldier or SphereCollider.

Here is the script. I will also try to explain what each line does so you can learn from it and become better at programming :wink:

using UnityEngine;

// make sure the game object you attach it to has an AudioSource on it
[RequireComponent(typeof(AudioSource))]
// create a script that you can attach to a game object
public class SetVolumeOnCollision : MonoBehaviour {

    // the volume to set when collided; can be set in the Editor; 
    // not necessarily needed, but it will make the component more versatile
    [SerializeField] private float volumeOnCollision = 1;

    // the tag to which it should react; also not essential, but nice to have
    // make sure you set the tag of your colliding object if you do use it!
    [SerializeField] private string tagToReactTo = "Player";

    // the audio source you want to control
    private AudioSource audioSource;

    // this is called in the first moment, even before sounds start to play
    private void Awake () {
        // get the audio source to control that is on this game object
        audioSource = GetComponent<AudioSource>();
        // set volume to 0, muting it; you can also do this in the Editor
        audioSource.volume = 0;
        // make sure it wil start to play; this as well can be set in the Editor
        audioSource.playOnAwake = true;
    }

    // this function is called on the frame when something collides with this game object
    private void OnCollisionEnter (Collision collision) {
        // check the tag; remove this if you don't want it
        if (collision.collider.CompareTag(tagToReactTo))
            // set the desired voluem; just replace it with 1 if you don't want to use desired volume
            audioSource.volume = volumeOnCollision;
    }

}