public Vector4 GetForceAndHeightAt(float x, float z, float time)
{
Vector4 vector = default(Vector4);
x = -(x + this._SurfaceOffset.x);
z = -(z + this._SurfaceOffset.y);
if (this._TargetDirectWavesCount == -1)
{
for (int i = this._NumTiles - 1; i >= 0; i--)
{
WaterTileSpectrum waterTileSpectrum = this._TileSpectra[i];
if (waterTileSpectrum.ResolveByFFT)
{
float fx;
float invFx;
float fy;
float invFy;
int num;
int num2;
int num3;
int num4;
this.InterpolationParams(x, z, i, this._WindWaves.TileSizes[i], out fx, out invFx, out fy, out invFy, out num, out num2, out num3, out num4);
Vector2[] array;
Vector2[] array2;
Vector4[] array3;
Vector4[] array4;
float t;
waterTileSpectrum.GetResults(time, out array, out array2, out array3, out array4, out t);
vector += FastMath.Interpolate(array3[num], array3[num2], array3[num3], array3[num4], array4[num], array4[num2], array4[num3], array4[num4], fx, invFx, fy, invFy, t);
}
}
}
else
{
lock (this)
{
WaterWave[] validatedDirectWavesList = this.GetValidatedDirectWavesList();
if (validatedDirectWavesList.Length != 0)
{
Vector4 b = default(Vector4);
for (int j = 0; j < validatedDirectWavesList.Length; j++)
{
validatedDirectWavesList[j].GetForceAndHeightAt(x, z, time, ref b);
}
vector += b;
}
}
}
float num5 = -this._Water.Materials.HorizontalDisplacementScale * this._UniformWaterScale;
vector.x *= num5;
vector.z *= num5;
vector.y *= 0.5f * this._UniformWaterScale;
vector.w *= this._UniformWaterScale;
return(vector);
}
internal void Update()
{
this._SurfaceOffset = this._Water.SurfaceOffset;
float num = this._Water.Time;
if (this._WindWaves.LoopDuration != 0f)
{
num %= this._WindWaves.LoopDuration;
}
this.LastFrameTime = num;
this._UniformWaterScale = this._Water.UniformWaterScale;
this.UpdateCachedSeed();
bool allowCpuFFT = WaterProjectSettings.Instance.AllowCpuFFT;
for (int i = 0; i < this._NumTiles; i++)
{
int num2 = 16;
int num3 = 0;
for (;;)
{
float num4 = 0f;
for (int j = this._SpectraDataList.Count - 1; j >= 0; j--)
{
WaterWavesSpectrumDataBase waterWavesSpectrumDataBase = this._SpectraDataList[j];
waterWavesSpectrumDataBase.ValidateSpectrumData();
float standardDeviation = waterWavesSpectrumDataBase.GetStandardDeviation(i, num3);
num4 += standardDeviation * waterWavesSpectrumDataBase.Weight;
}
for (int k = this._OverlayedSpectra.Count - 1; k >= 0; k--)
{
WaterWavesSpectrumDataBase waterWavesSpectrumDataBase2 = this._OverlayedSpectra[k];
waterWavesSpectrumDataBase2.ValidateSpectrumData();
float standardDeviation2 = waterWavesSpectrumDataBase2.GetStandardDeviation(i, num3);
num4 += standardDeviation2 * waterWavesSpectrumDataBase2.Weight;
}
if (num4 < this._WindWaves.CpuDesiredStandardError * 0.25f || num2 >= this._WindWaves.FinalResolution)
{
break;
}
num2 <<= 1;
num3++;
}
if (num2 > this._WindWaves.FinalResolution)
{
num2 = this._WindWaves.FinalResolution;
}
WaterTileSpectrum waterTileSpectrum = this._TileSpectra[i];
if (waterTileSpectrum.SetResolveMode(num2 >= 16 && allowCpuFFT, num2))
{
this._CpuWavesDirty = true;
}
}
}
