private int DrawVisibleLine(Point start, Point end, byte[] pixelsSource, byte[] pixelsSourceToWrite, int stride)
{
var points = Math2D.line(start, end);
int pixel = 0;
//if we start in a fixture we can see all the fixture, move on till we get out of it.
while (pixel < points.Count && Math2D.GetKindOfTerrain(pixelsSource, points[pixel]) == groundColor.fixture)
{
Math2D.SetPixeDarkRed(pixelsSourceToWrite, points[pixel]);
pixel++;
}
//now we are for sure in the open. Keep on till the next fixture
while (pixel < points.Count && Math2D.GetKindOfTerrain(pixelsSource, points[pixel]) != groundColor.fixture)
{
var obj = Math2D.GetKindOfTerrain(pixelsSource, points[pixel]);
if (obj == groundColor.open)
{
Math2D.SetPixelRed(pixelsSourceToWrite, points[pixel]);
}
else
{
Math2D.SetPixelRGB(pixelsSourceToWrite, points[pixel], 220, 160, 100);
}
pixel++;
}
//we are in the last fixture we will see. Keep on untill we reach it's limit
while (pixel < points.Count && Math2D.GetKindOfTerrain(pixelsSource, points[pixel]) == groundColor.fixture)
{
Math2D.SetPixeDarkRed(pixelsSourceToWrite, points[pixel]);
pixel++;
}
return(pixel);
}
private void CompresImageToColor(byte r, byte g, byte b, bool BackGroundWhite = false)
{
RenderTargetBitmap rtb = new RenderTargetBitmap((int)MainCanvas.RenderSize.Width, (int)MainCanvas.RenderSize.Height, 96d, 96d, System.Windows.Media.PixelFormats.Default);
rtb.Render(MainCanvas);
var bitmapEncoder = new PngBitmapEncoder();
bitmapEncoder.Frames.Add(BitmapFrame.Create(rtb));
var temporalBitmap = new BitmapImage();
using (var stream = new MemoryStream())
{
bitmapEncoder.Save(stream);
stream.Seek(0, SeekOrigin.Begin);
temporalBitmap.BeginInit();
temporalBitmap.CacheOption = BitmapCacheOption.OnLoad;
temporalBitmap.StreamSource = stream;
temporalBitmap.EndInit();
}
WriteableBitmap temporalSource;
if (Fixtures.compressedBMimage == null)
{
Fixtures.compressedBMimage = new WriteableBitmap(temporalBitmap);
temporalSource = Fixtures.compressedBMimage;
}
else
{
temporalSource = new WriteableBitmap(temporalBitmap);
}
int width = (int)temporalSource.Width;
int height = (int)temporalSource.Height;
Math2D.stride = temporalSource.PixelWidth * 4;
int size = temporalSource.PixelHeight * Math2D.stride;
byte[] pixelsSource = new byte[size];
temporalSource.CopyPixels(pixelsSource, Math2D.stride, 0);
byte[] pixelsToWrite = new byte[size];
if (Fixtures.compressedBMimage != null)
{
Fixtures.compressedBMimage.CopyPixels(pixelsToWrite, Math2D.stride, 0);
}
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; ++x)
{
if (Math2D.IsPixelDifferntThanWhie(pixelsSource, new Point(x, y)))
{
Math2D.SetPixelRGB(pixelsToWrite, new Point(x, y), r, g, b);
}
else
{
if (BackGroundWhite)
{
Math2D.SetPixelRGB(pixelsToWrite, new Point(x, y), 255, 255, 255);
}
}
}
}
Fixtures.compressedBMimage.WritePixels(new Int32Rect(0, 0, width, height), pixelsToWrite, width * 4, 0);
CompressedImage.Source = Fixtures.compressedBMimage;
}
