private bool DoCalculation(ConsolidatedLine c)
{
var normal = GetSurfaceNormal(c.Pixel.Y, c.Pixel.X);
c.NormalX = normal.X;
c.NormalY = normal.Y;
c.NormalZ = normal.Z;
var steps = (_stop.Ticks - _start.Ticks) / _step.Ticks;
var result = new List <float>((int)steps + 10);
if (true)
{
if (!MapOverSunContribution(c.Pixel.Y, c.Pixel.X, _start, _stop, _step, (time, sun_contrib) => result.Add(sun_contrib)))
{
return(false);
}
}
else
{
if (!MapOverLightCurve(c.Pixel.Y, c.Pixel.X, _start, _stop, _step, (time, light) => result.Add(light)))
{
return(false);
}
}
c.Lighting = result.ToArray();
return(true);
}
internal void WriteIceDepthCorrelation()
{
using (var tw = new StreamWriter(IceStabilityDepthCorrelationFilename))
using (var fs = File.OpenRead(LightingCacheFilename))
using (var br = new BinaryReader(fs))
{
tw.WriteLine("x,y,siegler_depth,max_temp");
try
{
while (true)
{
var l = ConsolidatedLine.ReadFrom(br);
tw.WriteLine($"{l.Pixel.X},{l.Pixel.Y},{l.Depth},{l.Lighting.BoxFilter(3).Max()},{l.Lighting.BoxFilter(6).Max()},{l.Lighting.BoxFilter(9).Max()},{l.Lighting.BoxFilter(12).Max()}");
}
} catch (Exception) { }
}
}
// Cache by id
private bool HorizonsHaveBeenCalculated(ConsolidatedLine consolidated)
{
var pixel = consolidated.Pixel;
var id = TerrainPatch.LineSampleToId(pixel.Y, pixel.X);
lock (_precache)
{
if (_precache.TryGetValue(id, out bool hasHorizons))
{
return(hasHorizons);
}
var patch = TerrainPatch.FromId(id);
var horizons_path = patch.Path;
var result = File.Exists(horizons_path);
if (result)
{
_cache.Add(id, patch);
}
_precache.Add(id, result);
return(result);
}
}
