using UnityEngine;

namespace UltimateWater.Internal
{
	public sealed class WaterWavesSpectrumData : WaterWavesSpectrumDataBase
	{
		private readonly WaterWavesSpectrum _Spectrum;

		public WaterWavesSpectrumData(Water water, WindWaves windWaves, WaterWavesSpectrum spectrum)
			: base(water, windWaves, spectrum.TileSize, spectrum.Gravity)
		{
			_Spectrum = spectrum;
		}

		protected override void GenerateContents(Vector3[][] spectrumValues)
		{
			int finalResolution = _WindWaves.FinalResolution;
			Vector4 tileSizeScales = _WindWaves.TileSizeScales;
			int num = ((_Water.Seed == 0) ? Random.Range(0, 1000000) : _Water.Seed);
			WaterQualityLevel[] qualityLevelsDirect = WaterQualitySettings.Instance.GetQualityLevelsDirect();
			int maxSpectrumResolution = qualityLevelsDirect[qualityLevelsDirect.Length - 1].MaxSpectrumResolution;
			if (finalResolution > maxSpectrumResolution)
			{
				Debug.LogWarningFormat("In water quality settings spectrum resolution of {0} is max, but at runtime a spectrum with resolution of {1} is generated. That may generate some unexpected behaviour. Make sure that the last water quality level has the highest resolution and don't alter it at runtime.", maxSpectrumResolution, finalResolution);
			}
			for (byte b = 0; b < 4; b++)
			{
				Random.State state = Random.state;
				Random.InitState(num + b);
				_Spectrum.ComputeSpectrum(spectrumValues[b], tileSizeScales[b], maxSpectrumResolution, null);
				Random.state = state;
			}
		}
	}
}