using System.Collections; using System; using UnityEngine; using UnityEngine.Audio; using UnityEngine.Events; namespace GameplayIngredients.Actions { public class AudioMixParameterAction : ActionBase { public AudioMixer AudioMixer; public string Parameter; public float Value; public float InterpDuration = 0; public UnityEvent OnInterpComplete; Coroutine m_Coroutine; public override void Execute(GameObject instigator = null) { if (InterpDuration <= 0.0f) { AudioMixer.SetFloat(Parameter, Value); } else { if (m_Coroutine != null) StopCoroutine(m_Coroutine); m_Coroutine = StartCoroutine(InterpParameterCoroutine(AudioMixer, InterpDuration, Parameter, Value, OnInterpComplete)); } } IEnumerator InterpParameterCoroutine(AudioMixer mixer, float duration, string parameter, float targetvalue, UnityEvent onInterpComplete) { float initial = 0.0f; if (mixer.GetFloat(parameter, out initial)) { float t = 0.0f; t += Time.deltaTime / duration; while (t < 1.0f) { mixer.SetFloat(parameter, Mathf.Lerp(initial, targetvalue, t)); yield return new WaitForEndOfFrame(); } mixer.SetFloat(parameter, targetvalue); yield return new WaitForEndOfFrame(); onInterpComplete.Invoke(); } else { throw new InvalidOperationException("Parameter " + parameter + " does not exist on target AudioMixer : " + mixer.name); } } } }