private static BezierQuadratic3 ApplyDisambiguator(BezierQuadratic3 bezier, int disambiguator)
{
var offset = bezier.P2.X >= bezier.P0.X
? BuildingConstants.CorridorDisambiguationOffset * disambiguator * Vector3.UnitZ
: -BuildingConstants.CorridorDisambiguationOffset * disambiguator * Vector3.UnitZ;
if (disambiguator % 2 == 1)
{
offset = -offset;
}
return(new BezierQuadratic3(bezier.P0 + offset, bezier.P1 + offset, bezier.P2 + offset));
}
public BuildingStoryPath(BuildingStoryLayoutPlacementAlgorithm pa, IStoryGraph sg, CameraProps initialCameraProps, int endNodeId, NavigationState navigationState, bool interLevel)
{
this.pa = pa;
this.sg = sg;
beziers = new List <BezierQuadratic3>();
var closestNode = sg.Leaves.Minimal(x =>
(BuildingConstants.LeafHalfSize.Depth * Vector3.UnitZ * GetGlobalTransform(x) -
initialCameraProps.Frame.Eye).LengthSquared());
//var closestNodeGlobalTransform = GetGlobalTransform(endNodeId);
//var closestNodeCenter = Vector3.Zero * closestNodeGlobalTransform;
//var closestNodeConnector = BuildingConstants.LeafHalfSize.Depth * Vector3.UnitZ * closestNodeGlobalTransform;
if (closestNode != endNodeId || interLevel)
{
if (!interLevel && sg.TryFindShortestPath(closestNode, endNodeId, out var nodePath))
{
foreach (var edge in nodePath.SequentialPairs())
{
IEnumerable <BezierQuadratic3> pathToAdd;
if (pa.Lanes.TryGetValue(edge, out var lane))
{
pathToAdd = lane.GlobalPath;
}
else if (pa.Lanes.TryGetValue(edge.Reverse(), out lane))
{
pathToAdd = lane.GlobalPath.Reverse().Select(x => x.Reverse());
}
else
{
throw new Exception("Path search returned an unexisting path.");
}
beziers.AddRange(pathToAdd.Skip(1).ExceptLast());
}
}
else
{
var endNode = sg.NodeObjects[endNodeId];
var aEndFocus = endNode.GetComponent <IFocusNodeComponent>();
var endCameraInfo = aEndFocus.DefaultViewpointMechanism.FixedCamera.GetProps();
directPath = new DirectStoryPath(initialCameraProps, endCameraInfo, 1f);
}
}
switch (navigationState)
{
case NavigationState.AtNode:
break;
case NavigationState.AtForwardFork:
{
var nextEdge = new Pair <int>(endNodeId, sg.Next[endNodeId].First());
var nextLane = pa.Lanes[nextEdge];
var lastBezier = nextLane.GlobalPath.First();
var point = lastBezier.At(1);
var tangent = lastBezier.TangentAt(1);
beziers.Add(BezierQuadratic3.Straight(point - tangent, point));
break;
}
case NavigationState.AtBackwardFork:
{
var nextEdge = new Pair <int>(sg.Previous[endNodeId].First(), endNodeId);
var nextLane = pa.Lanes[nextEdge];
var lastBezier = nextLane.GlobalPath.Last().Reverse();
var point = lastBezier.At(1);
var tangent = lastBezier.TangentAt(1);
beziers.Add(BezierQuadratic3.Straight(point - tangent, point));
break;
}
default:
throw new ArgumentOutOfRangeException(nameof(navigationState), navigationState, null);
}
foreach (var indexPair in Enumerable.Range(0, beziers.Count).SequentialPairs())
{
if (beziers[indexPair.First].P2 != beziers[indexPair.Second].P0)
{
var avg = (beziers[indexPair.First].P2 + beziers[indexPair.Second].P0) / 2;
beziers[indexPair.First] = beziers[indexPair.First].With((ref BezierQuadratic3 b) => b.P2 = avg);
beziers[indexPair.Second] = beziers[indexPair.Second].With((ref BezierQuadratic3 b) => b.P0 = avg);
}
}
if (!beziers.Any())
{
beziers.Add(BezierQuadratic3.Straight(initialCameraProps.Frame.Eye,
initialCameraProps.Frame.Eye + initialCameraProps.Frame.Forward));
}
path = beziers
.SelectMany(x => x.ToEnumPolyline(BezierTolerance))
.SequentialPairs()
.Select(x => new PathSegment(x.First, x.Second))
.Where(x => x.Length > 0)
.ToArray();
currentCameraProps = initialCameraProps;
}
