public override void Render(FontImage img)
{
var x0 = start.X;
var y0 = start.Y;
var x1 = end.X;
var y1 = end.Y;
var dx = Math.Abs(x1 - x0);
var dy = -Math.Abs(y1 - y0);
var sx = x0 < x1 ? 1 : -1;
var sy = y0 < y1 ? 1 : -1;
var err = dx + dy;
for (;;)
{
img.SetPixel(new Point(x0, y0));
if (Math.Abs(x1 - x0) < 1 && Math.Abs(y1 - y0) < 1)
{
break;
}
var e2 = 2 * err;
if (e2 >= dy)
{
err += dy; x0 += sx;
}
if (e2 <= dx)
{
err += dx; y0 += sy;
}
}
}
public override void Render(FontImage img)
{
img.SetPixel(point);
}