void TriangulateRoadAdjacentToRiver(HexDirection dir, HexCell cell, Vector3 center, EdgeVertices e)
{
var hasRoadThroughEdge = cell.HasRoadThroughEdge(dir);
var previousHasRiver = cell.HasRiverThroughEdge(dir.Previous());
var nextHasRiver = cell.HasRiverThroughEdge(dir.Next());
var interpolators = GetRoadInterpolators(dir, cell);
var roadCenter = center;
if (cell.hasRiverBeginOrEnd)
{
roadCenter += HexMetrics.GetSolidEdgeMiddle(
cell.riverBeginOrEndDirection.Opposite()
) * (1f / 3f);
}
else if (cell.incomingRiver == cell.outgoingRiver.Opposite())
{
Vector3 corner;
if (previousHasRiver)
{
if (!hasRoadThroughEdge &&
!cell.HasRoadThroughEdge(dir.Next()))
{
return;
}
corner = HexMetrics.GetSecondSolidCorner(dir);
}
else
{
if (!hasRoadThroughEdge &&
!cell.HasRoadThroughEdge(dir.Previous()))
{
return;
}
corner = HexMetrics.GetFirstSolidCorner(dir);
}
roadCenter += corner * 0.5f;
if (CanAddBridge(cell, dir))
{
features.AddBridge(roadCenter, center - corner * 0.5f);
}
center += corner * 0.25f;
}
else if (cell.incomingRiver == cell.outgoingRiver.Previous())
{
roadCenter -= HexMetrics.GetSecondCorner(cell.incomingRiver) * 0.2f;
}
else if (cell.incomingRiver == cell.outgoingRiver.Next())
{
roadCenter -= HexMetrics.GetFirstCorner(cell.incomingRiver) * 0.2f;
}
else if (previousHasRiver && nextHasRiver)
{
if (!hasRoadThroughEdge)
{
return;
}
var offset = HexMetrics.GetSolidEdgeMiddle(dir) * HexMetrics.innerToOuter;
roadCenter += offset * 0.7f;
center += offset * 0.5f;
}
else
{
HexDirection middle;
if (previousHasRiver)
{
middle = dir.Next();
}
else if (nextHasRiver)
{
middle = dir.Previous();
}
else
{
middle = dir;
}
if (!cell.HasRoadThroughEdge(middle) &&
!cell.HasRoadThroughEdge(middle.Previous()) &&
!cell.HasRoadThroughEdge(middle.Next()))
{
return;
}
var offset = HexMetrics.GetSolidEdgeMiddle(middle);
roadCenter += offset * 0.25f;
if (dir == middle &&
cell.HasRoadThroughEdge(dir.Opposite()))
{
features.AddBridge(
roadCenter,
center - offset * (HexMetrics.innerToOuter * 0.7f));
}
}
var mL = Vector3.Lerp(roadCenter, e.v1, interpolators.x);
var mR = Vector3.Lerp(roadCenter, e.v5, interpolators.y);
TriangulateRoad(roadCenter, mL, mR, e, hasRoadThroughEdge);
if (previousHasRiver)
{
TriangulateRoadEdge(roadCenter, center, mL);
}
if (nextHasRiver)
{
TriangulateRoadEdge(roadCenter, mR, center);
}
}
