public static void Create(RoundaboutUtil raboutCalc)
{
NetInfo info = PrefabUtil.SelectedPrefab;
var roundabout = new RaboutWraper(raboutCalc, info);
roundabout.Create();
}
public RaboutWraper(RoundaboutUtil raboutCalc, NetInfo info)
{
_raboutCalc = raboutCalc;
_junctions = raboutCalc.GetJunctions();
int n = _junctions.Count;
if (n < 3)
{
Log.Info("Roundabout has too few junctions.");
return;
}
Vector2 centerPoint = raboutCalc.CalculateCenter();
_center = new NodeWrapper(centerPoint, ControlCenter.Elevation);
_slices = new List <RaboutSlice>(n);
_segments = new List <SegmentWrapper>(n - 1);
for (int i = 0; i < n; ++i)
{
var i2 = (i + 1) % n;
var slice = new RaboutSlice(
_junctions[i].Main2, _junctions[i].Minor,
_junctions[i2].Main1, _junctions[i2].Minor,
raboutCalc.SegmentList,
_center,
info);
_slices.Add(slice);
if (slice.IsValid)
{
this.IsValid = true;
}
}
if (ControlCenter.RoundaboutBridgeStyle == RoundaboutBridgeStyleT.Star)
{
return;
}
if (_slices.Count == 1)
{
return;
}
// get last valid slice.
RaboutSlice slice_prev = null;
for (int i = _slices.Count - 1; i >= 0; --i)
{
if (_slices[i].IsValid)
{
slice_prev = _slices[i];
break;
}
}
if (slice_prev == null)
{
return;
}
foreach (var slice in _slices)
{
if (!slice.IsValid)
{
continue;
}
if (slice_prev.IsValid)
{
var segment12 = slice_prev.segment_circle2;
var segment21 = slice.segment_circle1;
if (segment12 != null && segment21 != null)
{
var segment = new SegmentWrapper(
segment12.EndNode, segment21.EndNode,
-segment12.EndDir, -segment21.EndDir);
_segments.Add(segment);
}
}
slice_prev = slice;
}
}