//--- Public methods ---
public FluidSimulator(Progress prog, RandomJames _rnd = null)
{
// particles:
particles = null;
activeParticles = 0;
TotalSpawned = 0L;
// boundaries:
walls = null;
xMin = 0.0;
xMax = 3.0;
yMin = 0.0;
yMax = 1.0;
InitWalls();
progress = prog;
// random generator:
rnd = _rnd;
if (rnd == null)
{
rnd = new RandomJames();
rnd.Randomize();
}
}
static public void Generate()
{
wasGenerated = true;
// !!!{{ TODO - generate and draw maze in SVG format
string fileName = CmdOptions.options.outputFileName;
if (string.IsNullOrEmpty(fileName))
{
fileName = CmdOptions.options.html ? "out.html" : "out.svg";
}
string outFn = Path.Combine(CmdOptions.options.outDir, fileName);
// SVG output:
using (StreamWriter wri = new StreamWriter(outFn))
{
if (CmdOptions.options.html)
{
wri.WriteLine("<!DOCTYPE html>");
wri.WriteLine("<meta charset=\"utf-8\">");
wri.WriteLine($"<title>SVG test ({CmdOptions.options.name})</title>");
wri.WriteLine(string.Format(CultureInfo.InvariantCulture, "<svg width=\"{0:f0}\" height=\"{1:f0}\">",
CmdOptions.options.width, CmdOptions.options.height));
}
else
{
wri.WriteLine(string.Format(CultureInfo.InvariantCulture, "<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"{0:f0}\" height=\"{1:f0}\">",
CmdOptions.options.width, CmdOptions.options.height));
}
List <Vector2> workList = new List <Vector2>();
RandomJames rnd = new RandomJames();
if (CmdOptions.options.seed > 0L)
{
rnd.Reset(CmdOptions.options.seed);
}
else
{
rnd.Randomize();
}
for (int i = 0; i < CmdOptions.options.columns; i++)
{
workList.Add(new Vector2(rnd.RandomFloat(0.0f, (float)CmdOptions.options.width),
rnd.RandomFloat(0.0f, (float)CmdOptions.options.height)));
}
drawCurve(wri, workList, 0, 0, string.Format("#{0:X2}{0:X2}{0:X2}", 0));
wri.WriteLine("</svg>");
// !!!}}
}
}
/// <summary>
/// Random generator init.
/// </summary>
/// <param name="seed">Random seed or 0L for Randomize().</param>
/// <returns></returns>
public long SetSeed(long seed)
{
if (seed <= 0L)
{
seed = rnd.Randomize();
}
else
{
rnd.Reset(seed);
}
return(seed);
}