using UnityEngine;

namespace DarkTonic.MasterAudio
{
	public static class AudioPrioritizer
	{
		private const int MaxPriority = 0;

		private const int HighestPriority = 16;

		private const int LowestPriority = 128;

		public static void Set2DSoundPriority(AudioSource audio)
		{
			audio.priority = 16;
		}

		public static void SetSoundGroupInitialPriority(AudioSource audio)
		{
			audio.priority = 128;
		}

		public static void SetPreviewPriority(AudioSource audio)
		{
			audio.priority = 0;
		}

		public static void Set3DPriority(SoundGroupVariation variation, bool useClipAgePriority)
		{
			if (MasterAudio.ListenerTrans == null)
			{
				return;
			}
			AudioSource varAudio = variation.VarAudio;
			if (varAudio.spatialBlend == 0f)
			{
				Set2DSoundPriority(variation.VarAudio);
				return;
			}
			float num = Vector3.Distance(varAudio.transform.position, MasterAudio.ListenerTrans.position);
			float num2 = varAudio.rolloffMode switch
			{
				AudioRolloffMode.Logarithmic => varAudio.volume / Mathf.Max(varAudio.minDistance, num - varAudio.minDistance), 
				AudioRolloffMode.Linear => Mathf.Lerp(varAudio.volume, 0f, Mathf.Max(0f, num - varAudio.minDistance) / (varAudio.maxDistance - varAudio.minDistance)), 
				_ => Mathf.Lerp(varAudio.volume, 0f, Mathf.Max(0f, num - varAudio.minDistance) / (varAudio.maxDistance - varAudio.minDistance)), 
			};
			if (useClipAgePriority && !varAudio.loop)
			{
				num2 = Mathf.Lerp(num2, num2 * 0.1f, AudioUtil.GetAudioPlayedPercentage(varAudio) * 0.01f);
			}
			varAudio.priority = (int)Mathf.Lerp(16f, 128f, Mathf.InverseLerp(1f, 0f, num2));
		}
	}
}