public Color GetColor(int x, int y)
{
var baseColor = _baseModule.GetColor(x, y);
var newRed = (int)(baseColor.R * (double)_light.R / 255);
var newGreen = (int)(baseColor.G * (double)_light.G / 255);
var newBlue = (int)(baseColor.B * (double)_light.B / 255);
var newColor = Color.FromArgb(newRed, newGreen, newBlue);
return(newColor);
}
static public void Fill(Polygon poly, Bitmap canvas, IFillModule fillModule)
{
var(edgeTable, numOfScanLines, y0) = CreateEdgeTable(poly);
var activeEdgeList = new List <EdgeBucket>();
for (int i = 0; i < numOfScanLines; i++)
{
var y = i + y0;
activeEdgeList.RemoveAll(e => e.ymax <= y);
if (edgeTable[i].list != null)
{
foreach (var e in edgeTable[i].list)
{
activeEdgeList.Add(e);
}
}
activeEdgeList.Sort((a, b) => a.x.CompareTo(b.x));
var even = activeEdgeList.Where((x, k) => k % 2 == 0);
var odd = activeEdgeList.Where((x, k) => k % 2 == 1);
var edgePairs = even.Zip(odd, (first, second) => (first, second));
foreach (var pair in edgePairs)
{
for (int x = pair.first.x; x <= pair.second.x; x++)
{
canvas.SetPixel(x, y, fillModule.GetColor(x, y));
}
}
for (int k = 0; k < activeEdgeList.Count; k++)
{
var edge = activeEdgeList.ElementAt(k);
activeEdgeList.RemoveAt(k);
edge.exactx += edge.slopeinv;
edge.x = (int)edge.exactx;
activeEdgeList.Insert(k, edge);
}
}
}