private Vector2[,] Sample(Texture texture, int width, int height, int step = 4)
{
Vector2[,] array = new Vector2[width, height];
Color[] pixels = this.WindowFriction.GetPixels();
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
float num = (float)j / (float)width;
float num2 = (float)i / (float)height;
int num3 = (int)(num * (float)texture.width);
int num4 = (int)(num2 * (float)texture.height);
int num5 = num4 * width + num3 - step;
int num6 = num4 * width + num3 + step;
int num7 = (num4 + step) * width + num3;
int num8 = (num4 - step) * width + num3;
float x = 0f;
float y = 0f;
if (WaterRaindropsIME.IsValidTextureIndex(num5, width, height) && WaterRaindropsIME.IsValidTextureIndex(num6, width, height))
{
x = pixels[num6].r - pixels[num5].r;
}
if (WaterRaindropsIME.IsValidTextureIndex(num7, width, height) && WaterRaindropsIME.IsValidTextureIndex(num8, width, height))
{
y = pixels[num7].r - pixels[num8].r;
}
array[j, i] = new Vector2(x, y);
}
}
return(array);
}
private void CreateSimulation()
{
this._Initialized = true;
this.CreateRenderTexture();
this._Matrices = new Matrix4x4[4096];
this._Buffer = new CommandBuffer();
this._Mesh = WaterRaindropsIME.BuildQuad(1f, 1f);
this.CreateFrictionMap();
}
private void Advance()
{
this._Droplets.RemoveAll((WaterRaindropsIME.Droplet x) => !WaterRaindropsIME.IsVisible(x) || x.Life <= 0f || x.Volume <= 0f);
for (int i = 0; i < this._Droplets.Count; i++)
{
WaterRaindropsIME.Droplet droplet = this._Droplets[i];
this.OnDropletUpdate(ref droplet);
if (!WaterRaindropsIME.IsVisible(droplet))
{
this._Droplets[i] = droplet;
}
else
{
this.Draw(i, droplet.Position, droplet.Volume, droplet.Velocity);
this._Droplets[i] = droplet;
}
}
}
internal void Initialize(WaterRaindropsIME reference)
{
this._Reference = reference;
this._PreviousPosition = this._Reference.transform.forward * this._Rotation + this._Reference.transform.position * this._Translation;
}