private Vector2 GetRoadInterpolators(HexDirection direction, HexObject cell)
{
Vector2 interpolators = new Vector2();
if (cell.HasRoadThroughEdge(direction))
{
interpolators.x = interpolators.y = 0.5f;
}
else
{
interpolators.x = cell.HasRoadThroughEdge(direction.Previous()) ? 0.5f : 0.25f;
interpolators.y = cell.HasRoadThroughEdge(direction.Next()) ? 0.5f : 0.25f;
}
return(interpolators);
}
private void TriangulateAdjacentToRiver(HexDirection direction, HexObject cell, Vector3 center, EdgeVertices e)
{
if (cell.HasRoads)
{
TriangulateRoadAdjacentToRiver(direction, cell, center, e);
}
if (cell.HasRiverThroughEdge(direction.Next()))
{
if (cell.HasRiverThroughEdge(direction.Previous()))
{
center += HexMetrics.GetSolidEdgeMiddle(direction) * (HexMetrics.Instance.innerToOuter * 0.5f);
}
else if (cell.HasRiverThroughEdge(direction.Previous2()))
{
center += HexMetrics.GetFirstSolidCorner(direction) * 0.25f;
}
}
else if (cell.HasRiverThroughEdge(direction.Previous()) && cell.HasRiverThroughEdge(direction.Next2()))
{
center += HexMetrics.GetSecondSolidCorner(direction) * 0.25f;
}
EdgeVertices m = new EdgeVertices(Vector3.Lerp(center, e.v1, 0.5f), Vector3.Lerp(center, e.v5, 0.5f));
TriangulateEdgeStrip(m, cell.Color, e, cell.Color);
TriangulateEdgeFan(center, m, cell.Color);
if (!cell.IsUnderwater && !cell.HasRoadThroughEdge(direction))
{
features.AddFeature(cell, (center + e.v1 + e.v5) * (1f / 3f));
}
}
private void Triangulate(HexDirection direction, HexObject cell)
{
Vector3 center = cell.Position;
EdgeVertices e = new EdgeVertices(center + HexMetrics.GetFirstSolidCorner(direction), center + HexMetrics.GetSecondSolidCorner(direction));
if (cell.HasRiver && !cell.IsUnderwater)
{
if (cell.HasRiverThroughEdge(direction))
{
e.v3.y = cell.StreamBedY;
if (cell.HasRiverBeginOrEnd)
{
TriangulateWithRiverBeginOrEnd(direction, cell, center, e);
}
else
{
TriangulateWithRiver(direction, cell, center, e);
}
}
else
{
TriangulateAdjacentToRiver(direction, cell, center, e);
}
}
else
{
TriangulateWithoutRiver(direction, cell, center, e);
if (!cell.IsUnderwater && !cell.HasRoadThroughEdge(direction))
{
features.AddFeature(cell, (center + e.v1 + e.v5) * (1f / 3f));
}
}
Vector3 textPosition = HexMetrics.Perturb(center);
textPosition.y += 0.1f;
cell.Text.transform.position = textPosition;
if (direction <= HexDirection.SE)
{
TriangulateConnection(direction, cell, e);
}
if (cell.IsUnderwater)
{
TriangulateWater(direction, cell, center);
}
}
private void TriangulateRoadAdjacentToRiver(HexDirection direction, HexObject cell, Vector3 center, EdgeVertices e)
{
bool hasRoadThroughEdge = cell.HasRoadThroughEdge(direction);
bool previousHasRiver = cell.HasRiverThroughEdge(direction.Previous());
bool nextHasRiver = cell.HasRiverThroughEdge(direction.Next());
Vector2 interpolators = GetRoadInterpolators(direction, cell);
Vector3 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(direction.Next()))
{
return;
}
corner = HexMetrics.GetSecondSolidCorner(direction);
}
else
{
if (!hasRoadThroughEdge && !cell.HasRoadThroughEdge(direction.Previous()))
{
return;
}
corner = HexMetrics.GetFirstSolidCorner(direction);
}
roadCenter += corner * 0.5f;
center += corner * 0.25f;
}
else if (cell.IncomingRiver == cell.OutgoingRiver.Previous())
{
roadCenter -= HexMetrics.GetSecondSolidCorner(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;
}
Vector3 offset = HexMetrics.GetSolidEdgeMiddle(direction) * HexMetrics.Instance.innerToOuter;
roadCenter += offset * 0.7f;
center += offset * 0.5f;
}
else
{
HexDirection middle;
if (previousHasRiver)
{
middle = direction.Next();
}
else if (nextHasRiver)
{
middle = direction.Previous();
}
else
{
middle = direction;
}
if (!cell.HasRoadThroughEdge(middle) && !cell.HasRoadThroughEdge(middle.Previous()) && !cell.HasRoadThroughEdge(middle.Next()))
{
return;
}
roadCenter += HexMetrics.GetSolidEdgeMiddle(middle) * 0.25f;
}
Vector3 mL = Vector3.Lerp(roadCenter, e.v1, interpolators.x);
Vector3 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);
}
}
private void TriangulateWithoutRiver(HexDirection direction, HexObject cell, Vector3 center, EdgeVertices e)
{
TriangulateEdgeFan(center, e, cell.Color);
if (cell.HasRoads)
{
Vector2 interpolators = GetRoadInterpolators(direction, cell);
TriangulateRoad(center, Vector3.Lerp(center, e.v1, interpolators.x), Vector3.Lerp(center, e.v5, interpolators.y), e, cell.HasRoadThroughEdge(direction));
}
}
private void TriangulateConnection(HexDirection direction, HexObject cell, EdgeVertices e1)
{
HexObject neighbour = cell.GetNeighbour(direction);
if (neighbour == null)
{
return;
}
Vector3 bridge = HexMetrics.GetBridge(direction);
bridge.y = neighbour.Position.y - cell.Position.y;
EdgeVertices e2 = new EdgeVertices(e1.v1 + bridge, e1.v5 + bridge);
if (cell.HasRiverThroughEdge(direction))
{
if (!cell.IsUnderwater)
{
e2.v3.y = neighbour.StreamBedY;
if (!neighbour.IsUnderwater)
{
TriangulateRiverQuad(e1.v2, e1.v4, e2.v2, e2.v4, cell.RiverSurfaceY, neighbour.RiverSurfaceY, 0.8f, cell.HasIncomingRiver && cell.IncomingRiver == direction);
}
else if (cell.Elevation > neighbour.WaterLevel)
{
TriangulateWaterfallInWater(e1.v2, e1.v4, e2.v2, e2.v4, cell.RiverSurfaceY, neighbour.RiverSurfaceY, neighbour.WaterSurfaceY);
}
}
else if (!neighbour.IsUnderwater && neighbour.Elevation > cell.WaterLevel)
{
TriangulateWaterfallInWater(e2.v4, e2.v2, e1.v4, e1.v2, neighbour.RiverSurfaceY, cell.RiverSurfaceY, cell.WaterSurfaceY);
}
}
if (cell.GetEdgeType(direction) == HexEdgeType.Slope)
{
TriangulateEdgeTerraces(e1, cell, e2, neighbour, cell.HasRoadThroughEdge(direction));
}
else
{
TriangulateEdgeStrip(e1, cell.Color, e2, neighbour.Color, cell.HasRoadThroughEdge(direction));
}
HexObject next = cell.GetNeighbour(direction.Next());
if (direction <= HexDirection.E && next != null)
{
Vector3 v5 = e1.v5 + HexMetrics.GetBridge(direction.Next());
v5.y = next.Position.y;
if (cell.Elevation <= neighbour.Elevation)
{
if (cell.Elevation <= next.Elevation)
{
TriangulateCorner(e1.v5, cell, e2.v5, neighbour, v5, next);
}
else
{
TriangulateCorner(v5, next, e1.v5, cell, e2.v5, neighbour);
}
}
else if (neighbour.Elevation <= next.Elevation)
{
TriangulateCorner(e2.v5, neighbour, v5, next, e1.v5, cell);
}
else
{
TriangulateCorner(v5, next, e1.v5, cell, e2.v5, neighbour);
}
}
}