koobas.hobune.stream
Increase volume when key is down and decrease volume when key is up
So i'm trying to make a very simple car engine where I press the 'W' key and the engine sound gradually increases and when I leave go of the 'W' key the volume gradually decreases. I can't seem to get it to work.
using UnityEngine;
using System.Collections;
public class CarEngine : MonoBehaviour {
float IncVolume = 0.6f;
float DecVolume = 0.6f;
float VolumeRate = 0.1f;
void Update () {
if (Input.GetKeyDown(KeyCode.W))
{
IncVolume = IncVolume + (VolumeRate * Time.deltaTime);
GetComponent<AudioSource>().enabled = !GetComponent<AudioSource>().enabled;
GetComponent<AudioSource>().volume = IncVolume;
}
if (Input.GetKeyUp(KeyCode.W))
{
DecVolume = DecVolume - (VolumeRate * Time.deltaTime);
GetComponent<AudioSource>().volume = DecVolume;
GetComponent<AudioSource>().enabled = !GetComponent<AudioSource>().enabled;
}
}
}
I have the IncVolume and DecVolume at 0.6 because that is the volume thats in the Inspecter and I want to increase and decrease the volume by 0.1 every second or so.
Best Answer
Functions GetKeyDown and GetKeyUp works, when user starts pressing down or up the key, one time. I correct your code:
private int grad = 0; // add one more variable for graduation volume effect
void Update () {
if (Input.GetKeyDown(KeyCode.W)) {
grad = 1;
}
if (Input.GetKeyUp(KeyCode.W)) {
grad = -1;
}
if (grad != 0) {
this.audio.enabled = true;
this.audio. volume += grad * VolumeRate * Time.deltaTime;
if (this.audio.volume < 0.1 || this.audio.volume > 0.6) {
if (this.audio.volume < 0.1) {
this.audio.volume = 0.1f;
} else {
this.audio.volume = 0.6f;
}
grad = 0;
}
}
}
Thanks. it said that 'this.audio.enabled = true' was obselete so I had to use 'this.GetComponent().enabled = true' ins$$anonymous$$d.
