public int PickSprite(int x, int y)
{
var sc = SourceImage.GetPixelRowSpan(y)[x];
double g = Helpers.ToGray(sc);
double sg =
(SpriteGrayMax - SpriteGrayMin)
/ (SourceGrayMax - SourceGrayMin)
* (g - SourceGrayMin)
+ SpriteGrayMin
;
//Log.Debug("Pick x="+x+" y="+y+" sg="+sg+" ["
// +"("+SpriteGrayMax+" - "+SpriteGrayMin+")"
// +" / ("+SourceGrayMax+" - "+SourceGrayMin+")"
// +" * ("+g+" - "+SourceGrayMin+") + "+SpriteGrayMin
// +"]");
//Log.Debug(sg+" = ("+SpriteGrayMax+" - "+SpriteGrayMin+") / ("+SourceGrayMax+" - "+SourceGrayMin+") * "+g);
//find closest sprite gray to sg
int index = FindClosestIndex(SpriteGrayMap, sg);
//Log.Debug("index = "+index+" "+SpriteGrayMap.Count);
return(SpriteGrayMap[index].Index);
}
