private void DrawLineFlags(Raster raster, int x0, int y0, int x1, int y1)
{
if (y0 > y1)
{
Swap(ref x0, ref x1);
Swap(ref y0, ref y1);
}
int deltax = x1 - x0;
int deltay = y1 - y0;
if (deltay == 0)
{
//raster.SetPixel(x0, y0, 255);
//raster.SetPixel(x1, y1, 255);
return;
}
float error = 0;
float deltaError = (float)deltax / (float)deltay;
int x = x0;
for (int y = y0; y < y1; y++)
{
raster.AddPixel(x, y, 1);
error += deltaError;
if (error > 0.5)
{
x++;
error -= 1.0f;
}
if (error < 0.5)
{
x--;
error += 1.0f;
}
}
}
