private void RenderLine(Vector3 start, Vector3 end, Plane plane, Color color, ICamera camera, I2DRenderer im)
{
var line = new Line(start, end);
var cls = line.ClassifyAgainstPlane(plane);
if (cls == PlaneClassification.Back)
{
return;
}
if (cls == PlaneClassification.Spanning)
{
var isect = plane.GetIntersectionPoint(line, true);
var first = plane.OnPlane(line.Start) > 0 ? line.Start : line.End;
if (!isect.HasValue)
{
return;
}
line = new Line(first, isect.Value);
}
var st = camera.WorldToScreen(line.Start);
var en = camera.WorldToScreen(line.End);
im.AddLine(st.ToVector2(), en.ToVector2(), color, 2);
}
private void AddLine(CircleType type, Vector3 start, Vector3 end, Plane test, CachedLines cache)
{
var line = new Line(start, end);
var cls = line.ClassifyAgainstPlane(test);
if (cls == PlaneClassification.Back)
{
return;
}
if (cls == PlaneClassification.Spanning)
{
var isect = test.GetIntersectionPoint(line, true);
var first = test.OnPlane(line.Start) > 0 ? line.Start : line.End;
if (isect.HasValue)
{
line = new Line(first, isect.Value);
}
}
cache.Cache[type].Add(new Line(cache.Viewport.Camera.WorldToScreen(line.Start), cache.Viewport.Camera.WorldToScreen(line.End)));
}