// Blits given source's lightMap onto the global lightmap given
private static void blitSenseSource(SenseSource source, double[,] destination, HashSet <Coord> sourceMap, IMapView <double> resMap)
{
// Calculate actual radius bounds, given constraint based on location
int minX = Math.Min((int)source.Radius, source.Position.X);
int minY = Math.Min((int)source.Radius, source.Position.Y);
int maxX = Math.Min((int)source.Radius, resMap.Width - 1 - source.Position.X);
int maxY = Math.Min((int)source.Radius, resMap.Height - 1 - source.Position.Y);
// Use radius bounds to extrapalate global coordinate scheme mins and maxes
Coord gMin = source.Position - new Coord(minX, minY);
//Coord gMax = source.Position + Coord.Get(maxX, maxY);
// Use radius bound to extrapalate light-local coordinate scheme min and max bounds that
// are actually blitted
Coord lMin = new Coord((int)source.Radius - minX, (int)source.Radius - minY);
Coord lMax = new Coord((int)source.Radius + maxX, (int)source.Radius + maxY);
for (int xOffset = 0; xOffset <= lMax.X - lMin.X; xOffset++)
//Parallel.For(0, lMax.X - lMin.X + 1, xOffset => // By light radius 30 or so, there is enough work to get benefit here. Manual thread splitting may also be an option.
{
for (int yOffset = 0; yOffset <= lMax.Y - lMin.Y; yOffset++)
{
// Offset local/current by proper amount, and update lightmap
Coord c = new Coord(xOffset, yOffset);
Coord gCur = gMin + c;
Coord lCur = lMin + c;
destination[gCur.X, gCur.Y] = destination[gCur.X, gCur.Y] + source.light[lCur.X, lCur.Y]; // Add source values,
if (destination[gCur.X, gCur.Y] > 0.0)
{
sourceMap.Add(gCur);
}
}
} //);
}
/// <summary>
/// Removes the given source from the list of sources. Generally, use this if a source is permanently removed
/// from a map. For temporary disabling, you should generally use the <see cref="SenseSource.Enabled" /> flag.
/// </summary>
/// <remarks>
/// The source values that this sense source was responsible for are NOT removed from the sensory output values
/// until <see cref="Calculate" /> is next called.
/// </remarks>
/// <param name="senseSource">The source to remove.</param>
public void RemoveSenseSource(SenseSource senseSource)
{
_senseSources.Remove(senseSource);
senseSource._resMap = null;
}
/// <summary>
/// Adds the given source to the list of sources. If the source has its
/// <see cref="SenseSource.Enabled" /> flag set when <see cref="Calculate" /> is next called, then
/// it will be counted as a source.
/// </summary>
/// <param name="senseSource">The source to add.</param>
public void AddSenseSource(SenseSource senseSource)
{
_senseSources.Add(senseSource);
senseSource._resMap = _resMap;
}